CN119398231A - Landslide slip trend prediction method, device, storage medium and electronic equipment - Google Patents
Landslide slip trend prediction method, device, storage medium and electronic equipment Download PDFInfo
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Abstract
本申请涉及一种滑坡滑移趋势的预测方法、装置、存储介质及电子设备，涉及露天煤矿滑坡防控技术领域，其中方法包括：首先通过对露天煤矿工作帮边坡的勘察和监测，确定潜在的滑坡区域；再根据滑坡区域的工程地质条件，分析滑坡的稳定性状态；然后基于滑坡的稳定性状态以及工程扰动对滑坡的影响，预测滑坡的滑移趋势。通过应用本申请的技术方案，基于对露天煤矿工作帮边坡的勘察和监测，在滑坡的稳定性状态的基础上综合考虑工程扰动条件，能够准确的预测滑坡的滑移趋势，以便对露天煤矿工作帮边坡进行精准监测和防控，进而提高边坡的稳定性，降低滑坡的风险，保障露天煤矿的安全生产。
The present application relates to a method, device, storage medium and electronic device for predicting the sliding trend of a landslide, and relates to the technical field of landslide prevention and control in open-pit coal mines, wherein the method comprises: firstly, determining the potential landslide area by surveying and monitoring the working slope of the open-pit coal mine; then, analyzing the stability state of the landslide according to the engineering geological conditions of the landslide area; and then predicting the sliding trend of the landslide based on the stability state of the landslide and the impact of the engineering disturbance on the landslide. By applying the technical solution of the present application, based on the survey and monitoring of the working slope of the open-pit coal mine, and comprehensively considering the engineering disturbance conditions on the basis of the stability state of the landslide, the sliding trend of the landslide can be accurately predicted, so as to accurately monitor and prevent the working slope of the open-pit coal mine, thereby improving the stability of the slope, reducing the risk of landslide, and ensuring the safe production of the open-pit coal mine.
Description
Technical Field
The application relates to the technical field of prevention and control of landslide of an opencast coal mine, in particular to a landslide slip trend prediction method, a device, a storage medium and electronic equipment.
Background
The open pit coal mine side slope refers to the whole body formed by all step slopes, flat trays (or platforms) and inclined pit lines around a mine field, and the working side slope refers to the side slope or a part thereof which is formed by working steps and is under exploitation. The stability of the slope of the working side of the open pit coal mine can influence the safety production of the coal mine, and even directly influence the economic benefit, the resource benefit, the environmental benefit and the social benefit of a coal mine enterprise.
At present, the stability of the existing landslide can be analyzed and predicted through the discussion and research of the instability mechanism of the slope of the working slope of the opencast coal mine, however, the sliding trend of the landslide cannot be accurately predicted according to the prior art, and further more effective monitoring and prevention measures are realized.
Disclosure of Invention
In view of the above, the present application provides a method, a device, a storage medium and an electronic apparatus for predicting a sliding trend of a landslide, which are mainly aimed at improving the technical problem that the sliding trend of the landslide cannot be accurately predicted in the prior art, so as to realize more effective monitoring and prevention measures.
In a first aspect, the present application provides a method for predicting a landslide slip tendency, including:
determining a potential landslide area through investigation and monitoring of an open pit coal mine working slope;
Analyzing the stability state of the landslide according to the engineering geological conditions of the landslide area;
And predicting the sliding trend of the landslide based on the stability state of the landslide and the influence of engineering disturbance on the landslide.
Optionally, the determining the potential landslide area through surveying and monitoring the slope of the working slope of the open pit coal mine comprises the following steps:
Determining the sliding surface position of the landslide according to engineering geological investigation results and deep displacement monitoring data of the slope of the working slope of the opencast coal mine;
and analyzing and determining a potential landslide area in the slope of the working side of the opencast coal mine through monitoring the deformation of the sliding surface.
Optionally, the analyzing the stability state of the landslide according to the engineering geological condition of the landslide area includes:
analyzing by using an engineering geological model to obtain an intensity parameter affecting landslide stability, wherein the engineering geological model is constructed according to the earth surface topography within the boundary range of an opencast coal mine;
performing stability checking calculation on the landslide region based on a limit balance theory to obtain stability coefficients of the landslide under different strength parameters;
determining the value range of the shear strength index of the landslide water-immersed shale weak layer by analyzing the sensitivity among the strength parameters and the stability coefficient corresponding to the strength parameters;
and determining the stability state of the landslide according to the value range of the shear strength index.
Optionally, the predicting the slip trend of the landslide based on the stability state of the landslide and the influence of engineering disturbance on the landslide includes:
Predicting the deformation dynamics of the landslide and the coming time of a slip acceleration stage according to the peristaltic characteristic of the structure surface of the landslide water-immersed cement rock soft layer, and determining the subsequent slip trend of the landslide by combining the influence range of engineering disturbance.
Optionally, determining the subsequent slip trend of the landslide in combination with the influence range of the engineering disturbance includes:
And analyzing the follow-up sliding trend of the landslide according to the propagation rule of the blasting stress wave and the influence of the blasting dosage on the landslide.
Optionally, the analyzing the subsequent slip trend of the landslide includes:
Based on a particle flow algorithm, carrying out simulation analysis on the subsequent sliding process of the landslide;
And predicting the sliding trend of the landslide according to the result of the simulation analysis.
Optionally, after predicting the slip trend of the landslide based on the stability state of the landslide and the influence of the engineering disturbance on the landslide, the method further comprises:
If the sliding trend of the landslide is abnormal, optimizing the production parameters, the working side design parameters and the blasting parameters, and redefining a potential landslide area;
A safe production area is determined based on the redefined potential landslide area.
In a second aspect, the present application provides a device for predicting a slip tendency of a landslide, including:
a determining module configured to determine a potential landslide area by investigation and monitoring of an opencast coal mine working slope;
the analysis module is configured to analyze the stability state of the landslide according to engineering geological conditions of the landslide area;
and the prediction module is configured to predict the sliding trend of the landslide based on the stability state of the landslide and the influence of engineering disturbance on the landslide.
In a third aspect, the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect.
In a fourth aspect, the present application provides an electronic device comprising a storage medium, a processor and a computer program stored on the storage medium and executable on the processor, the processor implementing the method of the first aspect when executing the computer program.
By means of the technical scheme, the landslide slip trend prediction method, the landslide slip trend prediction device, the storage medium and the electronic equipment are characterized in that a potential landslide area is determined through investigation and monitoring of an opencast coal mine working slope, the stability state of the landslide is analyzed according to engineering geological conditions of the landslide area, and the slip trend of the landslide is predicted based on the stability state of the landslide and the influence of engineering disturbance on the landslide. Compared with the prior art, by applying the technical scheme of the application, the engineering disturbance condition is comprehensively considered on the basis of the stability state of the landslide based on the investigation and monitoring of the slope of the working slope of the opencast coal mine, so that the sliding trend of the landslide can be accurately predicted, the slope of the working slope of the opencast coal mine can be accurately monitored, prevented and controlled, the stability of the slope is improved, the risk of the landslide is reduced, and the safety production of the opencast coal mine is ensured.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 shows a flow diagram of a method for predicting a landslide slip tendency according to an embodiment of the present application;
Fig. 2 is a schematic flow chart of another method for predicting a sliding trend of a landslide according to an embodiment of the present application;
FIG. 3 is a schematic diagram of an application example provided by an embodiment of the present application;
FIG. 4 is a schematic diagram of an application example provided by an embodiment of the present application;
Fig. 5 shows a schematic structural diagram of a device for predicting a sliding trend of a landslide according to an embodiment of the present application.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be made. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In order to solve the technical problems that the slip trend of landslide cannot be accurately predicted in the prior art, and further more effective monitoring and prevention measures are realized. The embodiment provides a method for predicting landslide slip tendency, as shown in fig. 1, the method includes:
and 101, determining a potential landslide area through investigation and monitoring of an open pit coal mine working slope.
In some examples, an opencast mine work slope (also known as an opencast mine work slope) refers to a slope made up of steps that are being mined and are to be mined, is a sloped surface around an opencast mine field, and may be made up of a plurality of steps, each step including an upper flat pan, a lower flat pan, a slope, and the like. The slope surface of the working slope is an imaginary slope surface made by the uppermost step slope bottom line and the lowermost step slope bottom line. The slope of the working side of the open pit coal mine is an important component in the exploitation of the open pit coal mine, and the stability of the slope has an important influence on the safety and economic benefit of the coal mine. In the open pit coal mining process, geological conditions are complex, various structural surfaces (such as joints, layers, cracks and the like) existing in a rock body are likely to cause landslide due to disturbance influence of various factors such as blasting, excavating and the like, and potential landslide areas are areas where landslide is likely to occur in the working slope of the open pit coal mine.
By way of example, the geological conditions, lithology, structural surfaces, etc. of the mine can be known by geological investigation, the possibility of landslide can be judged, or deformation, displacement, etc. of the side slope can be observed and analyzed, and signs of landslide can be found in time. The landslide area can be identified and monitored by utilizing the remote sensing technology, and the accuracy and the efficiency of monitoring are improved.
And 102, analyzing the stability state of the landslide according to engineering geological conditions of the landslide area.
Illustratively, the slope stability state of the landslide area is commonly affected by various engineering geological conditions, and the evolution stage and the stability condition of the slope can be judged by researching the size, slope shape, geological structure, geological environment, formed geological history, deformation damage trails and the like of the slope. The stability coefficient of the side slope can be calculated by utilizing a limit balance analysis method, a numerical analysis method and the like, and the stability state of the side slope can be estimated.
And step 103, predicting the sliding trend of the landslide based on the stability state of the landslide and the influence of engineering disturbance on the landslide.
In some examples, the engineering disturbance may refer to a disturbance or change in the surrounding environment of the highwall of the opencast mine caused by the engineering activity, which may include blasting disturbance, digging disturbance, mechanical disturbance, mining stripping, etc. The landslide is required after being disturbed by the interference, and the stability of the landslide can be qualitatively analyzed according to the geological survey and the environmental factor monitoring result and combining the type and the strength of engineering disturbance. If the overall stability factor of the landslide mass is high and the influence of environmental factors on the landslide stability is small, the slip tendency of the landslide may be weak. Conversely, if the overall stability coefficient of the landslide body is low, and the influence of environmental factors on the landslide stability is large, the sliding trend of the landslide may be strong, where the sliding trend of the landslide may further include the type, direction, influence range, and the like of the landslide sliding.
By way of example, according to the predicted sliding trend of the landslide, reasonable preventive measures and treatment measures are adopted, so that the occurrence probability and the hazard degree of landslide disasters can be effectively reduced. And further strengthen the discussion and research of the slope instability mechanism of the working slope, on the basis of analyzing the stability of the existing slope, put forward more effective monitoring and preventing and controlling measures, promote the safety production progress of the open pit coal mine.
The method comprises the steps of firstly, determining a potential landslide area through investigation and monitoring of an open pit coal mine working slope, then analyzing the stability state of the landslide according to engineering geological conditions of the landslide area, and then predicting the sliding trend of the landslide based on the stability state of the landslide and the influence of engineering disturbance on the landslide. Compared with the prior art, the method and the device have the advantages that engineering disturbance conditions are comprehensively considered on the basis of the stability state of the landslide based on investigation and monitoring of the slope of the working slope of the open pit coal mine, and the sliding trend of the landslide can be accurately predicted, so that the slope of the working slope of the open pit coal mine can be accurately monitored, prevented and controlled, the stability of the slope is improved, the risk of the landslide is reduced, and the safety production of the open pit coal mine is guaranteed.
Further, as a refinement and extension of the foregoing embodiment, in order to fully describe a specific implementation procedure of the method of the present embodiment, the present embodiment provides a specific method as shown in fig. 2, where the method includes:
step 201, determining a potential landslide area through investigation and monitoring of an opencast coal mine working slope.
For example, the formation lithology of the engineering site, in particular the distribution and connection of the strong weathered mudstone and the strong weathered sandstone, can be ascertained by means of drilling, pit test and the like, and the bars and the progression of the landslide are decomposed according to the morphology of the landform, the formation lithology and the slope structure. Through drilling exploration, combining geological mapping and investigation data, the sliding surface is primarily judged to be possibly positioned at the junction surface of the strong weathered mudstone and the strong weathered sandstone. And a borehole inclinometer is adopted to monitor the deep displacement so as to obtain displacement data of different depths inside the landslide body. To determine the likely landslide area.
Optionally, step 201 may specifically include determining a sliding surface position of the landslide according to engineering geological survey results and deep displacement monitoring data of the slope of the opencast coal mine working side slope, and analyzing and determining a potential landslide area in the opencast coal mine working side slope through deformation monitoring of the sliding surface.
By way of example, combining engineering geological survey results with shear-misalignment characteristics of the deep-displacement monitoring curve, it is possible to determine the evolving weak layer location of the sliding surface at the intersection of strongly weathered mudstone and strongly weathered sandstone. For example, a displacement-depth curve may be plotted from the monitored data, and morphological features of the curve analyzed. The position of the abrupt point or the displacement amount in the curve that significantly increases may correspond to the position of the sliding surface. It is then observed whether a shear-error characteristic occurs in the monitored curve, i.e. the displacement amount suddenly increases or decreases over a certain depth range, and this change coincides with the sliding direction of the landslide. And then combining engineering geological investigation results to judge whether the shear error occurs at the junction surface of the strong weathered mudstone and the strong weathered sandstone.
And 202, analyzing the stability state of the landslide according to engineering geological conditions of the landslide area.
For example, the physical and mechanical properties of the rock, including shear strength, compressive strength, degree of weathering, etc., can be analyzed from the engineering geological data being surveyed to assess the stability of the landslide.
Optionally, step 202 may specifically include analyzing an engineering geological model to obtain an intensity parameter affecting stability of the landslide, where the engineering geological model is constructed according to a surface topography within a boundary range of the opencast coal mine, performing stability checking on a landslide area based on a limit balance theory to obtain stability coefficients of the landslide under different intensity parameters, determining a value range of a shear strength index of a weak layer of the landslide water-immersed shale by analyzing sensitivity between the intensity parameters and the stability coefficients corresponding to the intensity parameters, and determining a stability state of the landslide according to the value range of the shear strength index.
In some examples, the accurate three-dimensional engineering geological model of the landslide area can be established by constructing an air-ground collaborative integrated three-dimensional accurate survey for the working slope of the open-pit mining area, accurately finding out the landslide area and deformation characteristics of the working slope. Specifically, the topography mapping can be carried out within the boundary range of the open pit coal mine, and the accurate surface topography within the boundary range of the open pit coal mine can be quickly constructed by using unmanned plane, satellite navigation survey, three-dimensional laser scanning and other means, so as to generate a digital elevation model (Digital Elevation Model) and a three-dimensional engineering geological model of the landslide area of the working upper of the open pit coal mine, which can fully explain the whole form and local detail characteristics of the side slope,
For example, FIG. 3 shows a digital elevation map of a landslide area and a typical cut-out of an engineering geologic model. The potential landslide area boundary width of the working slope is 370-390m, the average value is 380m, the landslide mass is about 125 ten thousand m < 3 >, and the landslide mode of the landslide area is shear deformation damage.
In some examples, landslide strength parameter sensitivity analysis may be performed by integrating the work slope stability status with engineering geological conditions. And combining field monitoring, theoretical analysis and numerical simulation, and further obtaining the shear strength index of the landslide water-immersed cement rock weak layer through inversion analysis.
The method is characterized by comprising the steps of analyzing main parameters influencing landslide stability according to engineering geological models and exploration results, and carrying out stability checking calculation on the landslide by using a limit balance theory to obtain stability coefficients of the landslide under different parameters. And further analyzing the sensitivity among parameters and the influence degree on landslide stability to obtain the value range of the landslide shear strength index. The basic calculation method of the limit balance theory is shown in a formula I:
Wherein F is a safety coefficient, and can represent a stability index of a slope, mr is an anti-slip moment, mo is a slip moment, c is an internal friction angle, L is a sliding surface length (Sliding surface length), represents a horizontal projection distance of the sliding surface, t is a sliding surface thickness, g is a gravitational acceleration, hi represents a height of an ith bar, represents a distance from a certain point above the sliding surface to the sliding surface, αi represents an inclination angle of the ith bar, wi represents a mass of the ith bar, n represents a Number of bars (Number of bars), and represents a total Number of bars on the sliding surface.
In some examples, the mechanism of slope landslide formation of the open pit coal mine working slope can be ascertained through investigation and research on engineering geology and hydrogeology of the open pit coal mine working slope, and the mechanism of evolution development of the slope landslide soft layer of the open pit coal mine working slope is revealed. By researching the formation mechanism of the weak layer, mud rocks with small side slope occurrence thickness are clarified, and the contact surface is soaked by underground water for a long time due to the water-proof effect, so that an evolution weak layer typical of an opencast coal mine is formed, the shear strength of the weak layer has a time effect, the strength of the weak layer is lower, and the weak layer has rheological characteristics. The method can also determine the direct cause of landslide of the working slope, namely along with stripping and pushing, the excavating disturbance of the working slope feet leads to the release of slope stress, the slope slides to the temporary surface along the weak layer under high pressure stress, and the front edge anti-sliding force gradually decreases due to the creeping of the slope feet, thus finally leading to the instability of the slope. The slope is subjected to finite difference simulation, so that the slope can intuitively understand the circular arc sliding of the bottom along the layer trailing edge along the evolution weak layer, and the slope is further subjected to the excavation unloading-shearing damage mechanism controlled by the evolution weak layer on the basis of the working slope of the huge thick yellow soil layer of the open pit coal mine, so that the sliding trend of the slope is effectively predicted, corresponding prevention measures are taken, and the safety of lives and properties of people and the smooth progress of engineering construction are ensured.
And 203, predicting the deformation dynamics of the landslide and the coming time of the slip acceleration stage according to the peristaltic characteristic of the structure surface of the landslide water-immersed shale soft layer, and determining the subsequent slip trend of the landslide by combining the influence range of engineering disturbance.
In some examples, a landslide precise control and production coordination architecture may be established. The method comprises the steps of constructing a mining area working slope GNSS dynamic on-line monitoring platform, selecting representative points on a working slope as monitoring points, combining a Beidou satellite navigation system, accurately monitoring real-time displacement deformation of the slope, judging the stage where the slope is deformed by predicting the deformation of the slope, predicting the deformation dynamics of the slope and the time of the acceleration stage according to the peristaltic characteristic of a weak structural surface, defining a warning line in combination with the influence range of engineering disturbance such as blasting disturbance, excavation disturbance and the like of an operation area, and further determining a safe production area.
Optionally, the step 203 may specifically include analyzing a subsequent sliding trend of the landslide according to a propagation rule of the blasting stress wave and an influence of the blasting dose on the landslide.
By way of example, the potential sliding trend of the landslide is affected by disturbance of various factors, wherein the speed response generated by the stress wave gradually decays along with the increase of the propagation distance based on the propagation rule of the blasting stress wave of the working slope with the weak interlayer, and the attenuation effect of the loose rock soil medium on the vibration wave is fully reflected. According to the dynamic response of the slope of the working slope of the strip mine under different blasting doses, the sensitivity of the vibration speed of the slope of the low flat plate to the blasting dose is obviously higher than that of the slope of the high flat plate, if the blasting dose is too high, the vibration response speed of the slope toe part is greatly improved, the plastic deformation of the slope toe rock-soil body is rapidly accumulated, and the slope is unstable, so that the slope is possibly another key slipping factor besides dead weight and unloading.
Optionally, the analysis of the subsequent sliding trend of the side slope specifically comprises performing simulation analysis on the subsequent sliding process of the side slope based on a particle flow algorithm, and predicting the sliding trend of the side slope according to the result of the simulation analysis.
In some examples, by means of simulation analysis of a follow-up sliding process of a slope sliding body of a working slope by a three-dimensional particle flow code (Particle Flow Code in Three Dimensions, PFC 3D), follow-up sliding trend of a soil layer sliding body of the working slope of an open pit mine is analyzed, the sliding body is found to slide under the action of gravity, a certain presser foot area is formed at a slope toe, and the result of checking a slope after the sliding is supposed to be basically consistent with that of adopting limit balance, wherein the sliding range characteristics of the slope when the model reaches balance are shown in fig. 4, the characteristic that potential sliding of the slope of the working slope shows slow sliding is revealed, and the sliding influence range of the slope of the working slope is predicted. The calculation method for meeting the particle in the simulation of the particle flow software is shown in a formula II:
wherein Fi represents the total force applied to the ith particle, K is the inelastic collision coefficient, U is the velocity of the particle, n is the normal vector, and m is the mass of the particle.
Optionally, the method of the embodiment can further comprise optimizing parameters such as production, working side design and blasting if the sliding trend of the landslide is abnormal, redefining a potential landslide area, and determining a safe production area according to the redefined potential landslide area.
In some examples, a multi-parameter information feedback and early warning visualization mechanism can be established, mining stripping, blasting vibration, mechanical disturbance and other information of a production area can be collected in time, personnel inspection is enhanced, and the sliding trend of the landslide is analyzed by combining the monitoring result. And once the landslide deformation is abnormal, timely feeding back, early warning is carried out on the landslide safety state, parameters such as mining production, working side design and blasting are timely optimized, the landslide deformation rate is controlled, the potential sliding trend is simulated and predicted by using the particle flow principle, the minimum range of the landslide influence is accurately determined, the potential dangerous area of the landslide is redefined according to the landslide influence range, accurate control is carried out, the stripping operation of a safety production area is ensured, and the influence on the mining of an opencast coal mine is reduced. Furthermore, the comprehensive treatment scheme of draining and stripping can be provided for the characteristics of the slope landslide of the working side of the opencast coal mine. The water content and the dead weight of the rock-soil body of the side slope can be effectively reduced, the shear strength and the stability of the side slope are improved, the risk of landslide is obviously reduced, and the safety production of an opencut coal mine is ensured. Compared with single treatment measures, the comprehensive treatment scheme can more effectively utilize resources and reduce unnecessary investment.
By implementing the scheme of the embodiment, the damage mechanism and landslide characteristics of the slope of the working slope of the huge thick yellow soil layer of the opencast coal mine are researched, the balance of disaster prevention and control and coal mining task completion under limited conditions of landslide, blasting disturbance and propulsion is comprehensively considered, and the parameter optimization and safe mining scheme of the working slope are formulated, so that the stability of the slope can be remarkably improved, the risk of the landslide is reduced, and the safe production of the opencast coal mine is ensured.
Compared with the prior art, the method and the device have the advantages that engineering disturbance conditions are comprehensively considered on the basis of the stability state of the landslide based on investigation and monitoring of the slope of the working slope of the open pit coal mine, and the sliding trend of the landslide can be accurately predicted, so that the slope of the working slope of the open pit coal mine can be accurately monitored, prevented and controlled, the stability of the slope is improved, the risk of the landslide is reduced, and the safety production of the open pit coal mine is guaranteed.
Further, as a specific implementation of the method shown in fig. 1, the embodiment provides a device for predicting a sliding trend of a landslide, as shown in fig. 5, where the device includes a determining module 31, an analyzing module 32, and a predicting module 33.
A determination module 31 configured to determine potential landslide areas by investigation and monitoring of an opencast coal mine work slope;
An analysis module 32 configured to analyze a stability status of the landslide in accordance with engineering geological conditions of the landslide region;
A prediction module 33 configured to predict a slip trend of the landslide based on a stability state of the landslide and an effect of an engineering disturbance on the landslide.
In some examples, the determination module 31 is specifically configured to determine a slip surface location of the slip surface based on engineering geological survey results and depth displacement monitoring data for the opencast coal mine working slope, and to analytically determine a potential slip region in the opencast coal mine working slope by deformation monitoring of the slip surface.
In some examples, the analysis module 32 is specifically configured to analyze and obtain an intensity parameter affecting the stability of the landslide by using an engineering geological model, wherein the engineering geological model is constructed according to the surface topography within the boundary range of the opencast coal mine, perform stability checking calculation on the landslide area based on a limit balance theory to obtain stability coefficients of the landslide under different intensity parameters, determine the value range of the shear strength index of the landslide water-immersed shale weak layer by analyzing the sensitivity between the intensity parameters and the stability coefficients corresponding to the intensity parameters, and determine the stability state of the landslide according to the value range of the shear strength index.
In some examples, the prediction module 33 is specifically configured to predict the deformation dynamics of the landslide and the time when the slip acceleration phase comes according to the peristaltic characteristic of the structure surface of the weak layer of the landslide and determine the subsequent slip trend of the landslide in combination with the influence range of the engineering disturbance.
In some examples, the prediction module 33 is specifically further configured to analyze a subsequent slip trend of the landslide according to a propagation law of the blasting-stress wave and an influence of the blasting-charge on the landslide.
In some examples, the prediction module 33 is specifically further configured to perform a simulation analysis on a subsequent sliding process of the landslide based on a particle flow algorithm, and predict a sliding trend of the landslide according to a result of the simulation analysis.
In some examples, the prediction module 33 is specifically further configured to optimize the production parameters, the working side design parameters and the blasting parameters if the slip trend of the landslide is abnormal, and redefine the potential landslide area, and determine the safe production area according to the redefined potential landslide area.
Based on the above-described methods shown in fig. 1 and 2, correspondingly, the present embodiment further provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the above-described methods shown in fig. 1 and 2.
Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.), and includes several instructions for causing a computer device (may be a personal computer, a server, or a network device, etc.) to execute the method of each implementation scenario of the present application.
In order to achieve the above object, based on the method shown in fig. 1 and fig. 2 and the virtual device embodiment shown in fig. 5, an embodiment of the present application further provides an electronic device, which may include a storage medium and a processor, where the storage medium is used to store a computer program, and the processor is used to execute the computer program to implement the method shown in fig. 1 and fig. 2.
Optionally, the entity device may further include a user interface, a network interface, a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WI-FI module, and so on. The user interface may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), etc., and the optional user interface may also include a USB interface, a card reader interface, etc. The network interface may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), etc.
It will be appreciated by those skilled in the art that the above-described physical device structure provided in this embodiment is not limited to this physical device, and may include more or fewer components, or may combine certain components, or may be a different arrangement of components.
The storage medium may also include an operating system, a network communication module. The operating system is a program that manages the physical device hardware and software resources described above, supporting the execution of information handling programs and other software and/or programs. The network communication module is used for realizing communication among all components in the storage medium and communication with other hardware and software in the information processing entity equipment.
From the above description of the embodiments, it will be apparent to those skilled in the art that the present application may be implemented by means of software plus necessary general hardware platforms, or may be implemented by hardware. By applying the scheme of the embodiment, engineering disturbance conditions are comprehensively considered on the basis of the stability state of the landslide based on investigation and monitoring of the slope of the working slope of the opencast coal mine, so that the sliding trend of the landslide can be accurately predicted, the slope of the working slope of the opencast coal mine can be accurately monitored, prevented and controlled, the stability of the slope is improved, the risk of the landslide is reduced, and the safety production of the opencast coal mine is guaranteed. The scheme of the embodiment is suitable for the fields of investigation, monitoring, mechanism and rule research, stability evaluation, prevention and control, mining scheme design and the like of the slope landslide of the working side slope of the limited large-scale opencut coal mine huge-thickness soil layer, and can provide practical guidance for similar projects.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is merely exemplary of embodiments of the present application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The landslide slip trend prediction method is characterized by comprising the following steps of:
determining a potential landslide area through investigation and monitoring of an open pit coal mine working slope;
Analyzing the stability state of the landslide according to the engineering geological conditions of the landslide area;
And predicting the sliding trend of the landslide based on the stability state of the landslide and the influence of engineering disturbance on the landslide.
2. The method of claim 1, wherein the determining potential landslide areas by investigation and monitoring of an opencut working slope comprises:
Determining the sliding surface position of the landslide according to engineering geological investigation results and deep displacement monitoring data of the slope of the working slope of the opencast coal mine;
and analyzing and determining a potential landslide area in the slope of the working side of the opencast coal mine through monitoring the deformation of the sliding surface.
3. The method of claim 1, wherein analyzing the stability status of the landslide based on the engineering geological conditions of the landslide region comprises:
analyzing by using an engineering geological model to obtain an intensity parameter affecting landslide stability, wherein the engineering geological model is constructed according to the earth surface topography within the boundary range of an opencast coal mine;
performing stability checking calculation on the landslide region based on a limit balance theory to obtain stability coefficients of the landslide under different strength parameters;
determining the value range of the shear strength index of the landslide water-immersed shale weak layer by analyzing the sensitivity among the strength parameters and the stability coefficient corresponding to the strength parameters;
and determining the stability state of the landslide according to the value range of the shear strength index.
4. The method of claim 1, wherein predicting the slip trend of the landslide based on the stability status of the landslide and the effect of the engineering disturbance on the landslide comprises:
Predicting the deformation dynamics of the landslide and the coming time of a slip acceleration stage according to the peristaltic characteristic of the structure surface of the landslide water-immersed cement rock soft layer, and determining the subsequent slip trend of the landslide by combining the influence range of engineering disturbance.
5. The method of claim 4, wherein the determining the subsequent slip trend of the landslide in combination with the range of influence of the engineering disturbance comprises:
And analyzing the follow-up sliding trend of the landslide according to the propagation rule of the blasting stress wave and the influence of the blasting dosage on the landslide.
6. The method of claim 5, wherein said analyzing a subsequent slip trend of said landslide comprises:
Based on a particle flow algorithm, carrying out simulation analysis on the subsequent sliding process of the landslide;
And predicting the sliding trend of the landslide according to the result of the simulation analysis.
7. The method of claim 1, wherein after predicting a slip trend of the landslide based on a stability state of the landslide and an effect of an engineering disturbance on the landslide, the method further comprises:
If the sliding trend of the landslide is abnormal, optimizing the production parameters, the working side design parameters and the blasting parameters, and redefining a potential landslide area;
A safe production area is determined based on the redefined potential landslide area.
8. A landslide slip trend prediction apparatus, comprising:
a determining module configured to determine a potential landslide area by investigation and monitoring of an opencast coal mine working slope;
the analysis module is configured to analyze the stability state of the landslide according to engineering geological conditions of the landslide area;
and the prediction module is configured to predict the sliding trend of the landslide based on the stability state of the landslide and the influence of engineering disturbance on the landslide.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method of any of claims 1 to 7.
10. An electronic device comprising a storage medium, a processor and a computer program stored on the storage medium and executable on the processor, characterized in that the processor implements the method of any one of claims 1 to 7 when executing the computer program.
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