CN104697736B - Consider the anchor pole shock resistance test system and its application process of the interaction of supporting country rock - Google Patents
Consider the anchor pole shock resistance test system and its application process of the interaction of supporting country rock Download PDFInfo
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- 238000004088 simulation Methods 0.000 claims description 33
- 238000005259 measurement Methods 0.000 claims description 20
- 238000002474 experimental method Methods 0.000 claims description 15
- 238000004873 anchoring Methods 0.000 claims description 12
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- 230000000703 anti-shock Effects 0.000 description 2
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Abstract
Description
技术领域technical field
本发明涉及锚杆在工程现场抗冲击性能的研究，特别是涉及实际工程考虑支护结构和围岩相互作用的锚杆抗冲击测试系统及其应用方法。The invention relates to the research on the anti-shock performance of anchor bolts at engineering sites, in particular to an anti-shock test system and an application method for anchor bolts which consider the interaction between support structures and surrounding rocks in actual engineering.
背景技术Background technique
近年来，我国深部地下工程建设获得了深入发展，同时也遇到了越来越复杂的地质条件。高应力引起的岩爆及冲击地压等破坏性强烈的工程灾害越来越严重，在这种条件下应用的锚杆的抗冲击性能是锚固支护效果的关键。In recent years, my country's deep underground engineering construction has achieved in-depth development, but also encountered more and more complex geological conditions. High-stress rockbursts and rock bursts and other highly destructive engineering disasters are becoming more and more serious. Under such conditions, the impact resistance of bolts used is the key to the effect of anchoring and support.
如附图1所示，岩爆的发生过程是指硐室围岩在高应力作用下，首先产生板裂化现象（即产生裂隙），之后随着能量的进一步积聚，部分围岩突然向外爆出的现象。在此过程中，锚杆极易破坏，其原因不仅在于岩爆释放较高的能量，形成强烈的冲击，更重要的是在锚杆中引发了应力和应变集中。As shown in Figure 1, the occurrence process of rockburst means that under the action of high stress, the surrounding rock of the chamber first produces plate cracking (that is, cracks), and then with the further accumulation of energy, part of the surrounding rock suddenly explodes outward. phenomenon. During this process, the bolt is very easy to damage. The reason is not only that the rockburst releases high energy and forms a strong impact, but more importantly, it induces stress and strain concentration in the bolt.
如图2所示。由于锚杆表面粗糙并与锚固剂紧密结合，在岩爆导致围岩裂隙张开的情况下，锚杆在裂隙附近仅有很短的杆体与锚固剂分离。岩爆发生时，只有与围岩分离的部分杆体能够受拉伸长，从而吸收爆出岩块的能量，锚杆与围岩紧密结合的部分则不能伸长和吸收能量。因此，锚杆实际的抗冲击能力仅包括裂隙附近可变形部分杆体受拉伸长所能吸收的能量。as shown in picture 2. Due to the rough surface of the bolt and the tight combination with the anchoring agent, in the case of cracks in the surrounding rock caused by rockburst, only a short rod body of the anchor near the crack is separated from the anchoring agent. When a rockburst occurs, only the part of the rod body separated from the surrounding rock can be stretched to absorb the energy of the burst rock block, while the part of the anchor rod that is tightly combined with the surrounding rock cannot be elongated and absorb energy. Therefore, the actual impact resistance of the anchor only includes the energy that can be absorbed by the elongation of the deformable part of the rod near the crack.
为了测试锚杆的抗冲击性能，需要可以模拟上述破坏现象和过程的测试装置。现有的实验室测试设备包括中国专利201110387388.1、2012100934515两种。这两种测试装置都是将锚杆一端固定，对锚杆的另一端直接施加冲击荷载，这样实际测得的锚杆抗冲击性能包括锚杆全部长度受拉伸长所吸收的能量，测试得到的结果与锚杆现场特性有较大差别。目前的实验装置不能真实反映锚杆-围岩之间的相互作用，即锚杆承受的冲击荷载与现场实际情况不一致，而且不能直接反映在冲击荷载作用下锚杆对围岩的加固作用。In order to test the impact resistance of anchor rods, a test device that can simulate the above-mentioned failure phenomena and processes is needed. Existing laboratory testing equipment includes two kinds of Chinese patents 201110387388.1 and 2012100934515. These two test devices fix one end of the anchor rod and directly apply the impact load to the other end of the anchor rod, so that the actual measured impact resistance of the anchor rod includes the energy absorbed by the entire length of the anchor rod when stretched. The results are quite different from the field characteristics of bolts. The current experimental device cannot truly reflect the interaction between the anchor and the surrounding rock, that is, the impact load on the anchor is not consistent with the actual situation on site, and it cannot directly reflect the reinforcement of the anchor to the surrounding rock under the impact load.
发明内容Contents of the invention
本发明的目的是为了克服上述现有技术的不足，提供一种能够反映工程现场锚杆与围岩的相互作用的锚杆抗冲击性能测试系统。The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a bolt impact resistance performance testing system that can reflect the interaction between the bolt and the surrounding rock at the engineering site.
为实现上述目的，本发明采用下述技术方案：To achieve the above object, the present invention adopts the following technical solutions:
一种考虑支护-围岩相互作用的锚杆抗冲击测试系统，其特征在于，包括主机框架结构、围岩模拟装置、锚杆试件、送样装置、试样升降组件、锤体组件、提锤装置、电气控制系统、缓冲装置、防护装置、冲击荷载测量系统和位置测量系统；A bolt impact resistance test system considering the interaction between support and surrounding rock is characterized in that it includes a mainframe frame structure, a surrounding rock simulation device, a bolt test piece, a sample delivery device, a sample lifting assembly, a hammer assembly, Lifting hammer device, electrical control system, buffer device, protective device, impact load measurement system and position measurement system;
所述的主机框架结构，包括底板、顶板、支撑立柱、导向光杆和横梁，支撑立柱共四根，相邻支撑立柱之间通过横梁连接以提高主机框架结构的稳定性，导向光杆共有两根，任意一根的上、下两端分别与顶板和底板相连；The frame structure of the main frame includes a base plate, a top plate, a supporting column, a light guiding rod and a crossbeam. There are four supporting columns, and adjacent supporting columns are connected by a crossbeam to improve the stability of the frame structure of the main frame. There are two light guiding rods. The upper and lower ends of any one are respectively connected with the top plate and the bottom plate;
所述的围岩模拟装置，包括上侧钢管、下侧钢管、挂钩和冲击盘；上侧钢管和下侧钢管通过凸台相连，既能防止两者轴心偏斜，又能使两者受到拉力时可以方便的脱离，挂钩的下端通过螺纹与上侧钢管连接，挂钩的上端可以挂在试样夹具上；冲击盘固定在下侧钢管的外侧，用于承受锤体组件的冲击，并将冲击力传递给下侧钢管；The surrounding rock simulation device includes an upper steel pipe, a lower steel pipe, a hook and an impact plate; the upper steel pipe and the lower steel pipe are connected through a boss, which can prevent both axes from deflecting and make both It can be easily detached during tension. The lower end of the hook is connected to the upper steel pipe through threads, and the upper end of the hook can be hung on the sample fixture; the impact plate is fixed on the outer side of the lower steel pipe to withstand the impact of the hammer assembly and dissipate the impact. The force is transmitted to the lower steel pipe;
所述的锚杆试件，包括杆体、托盘和螺母，杆体安装在上述围岩模拟装置的上侧钢管和下侧钢管中，通过砂浆或树脂锚固剂固定，托盘与下侧钢管的低端接触，螺母用于固定托盘；The anchor rod test piece includes a rod body, a tray and a nut. The rod body is installed in the upper steel pipe and the lower steel pipe of the above-mentioned surrounding rock simulation device, fixed by mortar or resin anchoring agent, and the lower end of the tray is in contact with the lower steel pipe. , the nut is used to fix the tray;
所述的送样装置，包括固定构件、左右导轨、前后导轨、试样抓钩、抓钩手轮，所述的固定构件用于将送样装置固定在主机框架结构的支撑立柱上，通过抓钩手轮可以控制试样抓钩抓、放试样；The sample delivery device includes a fixing member, left and right guide rails, front and rear guide rails, a sample grabber, and a grabber handwheel. The hook hand wheel can control the sample grabbing hook to grab and release the sample;
所述的试样升降组件，包括动力组件一、螺纹杆、试样夹具，动力组件一可以控制螺纹杆上下运动，试样夹具与螺纹杆下侧通过螺纹连接；试样升降组件可以将围岩模拟装置的上侧钢管固定在任意设定的高度；The sample lifting assembly includes a power assembly 1, a threaded rod, and a sample clamp. The power assembly 1 can control the threaded rod to move up and down, and the sample clamp and the lower side of the threaded rod are connected by threads; The steel pipe on the upper side of the simulation device is fixed at any set height;
所述的锤体组件，包括锤头、锤头座、主锤体、配重砝码、砝码锁紧套、砝码锁紧杆，在主锤体上预留有上下通透的两个导向光杆孔和围岩模拟装置孔，锤体组件工作时整体沿导向光杆下落，对围岩模拟装置的冲击盘施加冲击荷载；The hammer assembly includes a hammer head, a hammer head seat, a main hammer body, a counterweight weight, a weight locking sleeve, and a weight locking rod. Two upper and lower transparent bars are reserved on the main hammer body. The hole of the guide polished rod and the hole of the surrounding rock simulation device. When the hammer body assembly is working, it falls along the guide polished rod as a whole, and applies an impact load to the impact plate of the surrounding rock simulation device;
所述的提锤装置，包括动力组件二，电磁铁牵引机构，抓锤自锁机构，动、静滑轮组，提锤链条；用于抓起或释放锤体，以及将锤体组件提升到设定高度；The hammer lifting device includes power component 2, an electromagnet traction mechanism, a hammer self-locking mechanism, a dynamic and static pulley block, and a hammer lifting chain; it is used to grab or release the hammer body, and lift the hammer body assembly to a set value. high;
所述的电气控制系统，包含触摸屏、PLC、主命令控制按钮、伺服控制器、安全限位开关，用于操控整台试验机的正常指令运行；The electrical control system includes a touch screen, PLC, a main command control button, a servo controller, and a safety limit switch, and is used to control the normal command operation of the entire testing machine;
所述的缓冲装置，采用液压缓冲油缸，安装在主机框架结构的底板上，在锚杆受冲击后产生破断的情况下，吸收锤体组件冲击能量，防止锤体组件直接冲击主机框架结构的底板；The buffer device adopts a hydraulic buffer cylinder and is installed on the bottom plate of the frame structure of the main engine. When the anchor rod is broken after being impacted, it absorbs the impact energy of the hammer assembly and prevents the hammer assembly from directly impacting the bottom plate of the frame structure of the main engine. ;
所述的防护装置，包含声光报警系统、维护用安全爬梯、下安全防护罩、上安全防护网、安全门，用于保护设备操作员的人身安全，维持整机的运行安全；The protective device includes an audible and visual alarm system, a safety ladder for maintenance, a lower safety shield, an upper safety net, and a safety door, which are used to protect the personal safety of the equipment operator and maintain the safe operation of the whole machine;
所述的冲击荷载测量系统，包括压力传感器、导线、数据采集器，压力传感器安装在锤头和锤头座之间，用于实时测量实验过程中试件受到的冲击荷载；The impact load measurement system includes a pressure sensor, a wire, and a data collector, and the pressure sensor is installed between the hammerhead and the hammerhead seat for real-time measurement of the impact load on the test piece during the experiment;
所述的位置测量系统，包括非接触位置传感器、导线、数据采集器，非接触位置传感器用于实时测量实验过程中锤体组件的位置，进而计算得到其速度和加速度。The position measurement system includes a non-contact position sensor, a wire, and a data collector. The non-contact position sensor is used to measure the position of the hammer assembly in real time during the experiment, and then calculate its velocity and acceleration.
本发明的试验方法是：Test method of the present invention is:
1）首先将围岩模拟装置的上侧钢管和下侧钢管对接，安装挂钩和冲击盘；然后在上侧钢管和下侧钢管填充混凝土用于模拟围岩，待混凝土凝固后在其中心钻孔；然后通过砂浆或树脂锚固剂将锚杆的杆体固定在钻孔中；最后安装托盘和螺母；1) First connect the upper steel pipe and the lower steel pipe of the surrounding rock simulation device, install the hook and the impact plate; then fill the upper steel pipe and the lower steel pipe with concrete to simulate the surrounding rock, and drill a hole in the center after the concrete solidifies ; Then fix the rod body of the anchor rod in the drill hole through mortar or resin anchoring agent; finally install the tray and nut;
2）设置锤体组件的重量并固定好配重砝码，通过提锤装置和动力组件将其提升到一定高度，通过送样装置将围岩模拟装置托起，将其挂钩固定在试样升降组件的试样夹具上，进而调节试样至实验设计高度；2) Set the weight of the hammer body assembly and fix the counterweight, lift it to a certain height through the hammer lifting device and power assembly, lift the surrounding rock simulation device through the sample delivery device, and fix its hook on the sample lifting On the sample fixture of the component, and then adjust the sample to the experimental design height;
3）通过提锤装置释放锤体组件，锤体组件自由落体冲击围岩模拟装置下侧钢管上的冲击盘，由于锚杆的下端与下侧钢管通过锚固剂粘结，同时还有托盘和螺母的阻挡，冲击荷载通过下侧钢管传递到锚杆试件，从而给锚杆试件施加冲击荷载；3) Release the hammer body assembly through the hammer lifting device, and the hammer body assembly freely falls to impact the impact plate on the lower steel pipe of the surrounding rock simulation device. Since the lower end of the anchor rod is bonded to the lower steel pipe through the anchoring agent, there are also trays and nuts The impact load is transmitted to the anchor rod specimen through the lower steel pipe, thereby applying an impact load to the anchor rod specimen;
4）在上述实验过程中，通过冲击荷载测量系统实时测量实验过程中试件受到的冲击荷载；通过位置测量系统实时测量锤体组件的位置，进而计算得到锤体的速度和加速度数据；实验完成后，提起锤体组件，卸下围岩模拟装置，记录分析试件的破坏情况。4) During the above experiment process, the impact load on the specimen during the experiment is measured in real time by the impact load measurement system; the position of the hammer body assembly is measured in real time by the position measurement system, and then the velocity and acceleration data of the hammer body are calculated; the experiment is completed Finally, lift the hammer body assembly, remove the surrounding rock simulation device, and record and analyze the damage of the test piece.
本发明的原理是：Principle of the present invention is:
本发明的围岩模拟装置可以模拟工程现场发生岩爆时围岩产生的板裂化现象，通过锤体组件施加冲击荷载可以模拟围岩突然向外爆出的现象，通过围岩模拟装置上侧钢管和下侧钢管的分离使锚杆产生类似于现场的应力和应变集中现象。本测试系统能够真实的反映围岩和锚杆在冲击荷载作用下的相互作用过程，从而测量锚杆实际的抗冲击性能，真实反映锚杆对具有岩爆倾向围岩的加固作用。The surrounding rock simulation device of the present invention can simulate the slab cracking phenomenon of the surrounding rock when a rockburst occurs on the engineering site, and can simulate the sudden outward bursting of the surrounding rock by applying an impact load through the hammer assembly. The separation from the steel pipe on the lower side causes the bolt to produce stress and strain concentration similar to the scene. This test system can truly reflect the interaction process between the surrounding rock and the bolt under the impact load, so as to measure the actual impact resistance of the bolt and truly reflect the reinforcement effect of the bolt on the surrounding rock with rockburst tendency.
附图说明Description of drawings
图1为岩爆原理示意图；Fig. 1 is the schematic diagram of rockburst principle;
图2为岩爆发生时锚杆变形分析图；Fig. 2 is the bolt deformation analysis figure when rockburst takes place;
图3为本发明考虑支护-围岩相互作用的锚杆抗冲击测试系统的结构示意图。Fig. 3 is a structural schematic diagram of the bolt impact resistance testing system considering the support-surrounding rock interaction in the present invention.
图例：主机框架结构的底板101、顶板102、支撑立柱103、导向光杆104；围岩模拟装置的上侧钢管201、下侧钢管202、冲击盘203；锚杆试件的杆体301、托盘302；试样升降组件的动力组件一401、螺纹杆402、试样夹具；锤体组件5；提锤装置的动力组件二601、电磁铁牵引机构602；缓冲装置7；围岩模拟装置的挂钩和试样升降组件的试样夹具的组合表示为88。Legend: the bottom plate 101, top plate 102, supporting column 103, and light guide rod 104 of the main frame structure; the upper steel pipe 201, the lower steel pipe 202, and the impact plate 203 of the surrounding rock simulation device; the rod body 301 and the tray 302 of the anchor rod test piece; Power component one 401 of the sample lifting component, threaded rod 402, sample fixture; hammer body component 5; power component two 601 of the hammer lifting device, electromagnet traction mechanism 602; buffer device 7; hook and test piece of the surrounding rock simulation device The combination of sample holders of the sample lifting assembly is indicated at 88.
具体实施方式detailed description
结合附图3，一种考虑支护-围岩相互作用的锚杆抗冲击测试系统，其特征在于，包括主机框架结构、围岩模拟装置、锚杆试件、送样装置、试样升降组件、锤体组件5、提锤装置、电气控制系统、缓冲装置、防护装置、冲击荷载测量系统和位置测量系统；In conjunction with accompanying drawing 3, a bolt impact resistance test system considering the interaction between support and surrounding rock is characterized in that it includes a mainframe frame structure, a surrounding rock simulation device, a bolt test piece, a sample delivery device, and a sample lifting assembly , hammer body assembly 5, lifting hammer device, electrical control system, buffer device, protective device, impact load measurement system and position measurement system;
所述的主机框架结构，包括底板101、顶板102、支撑立柱103、导向光杆104和横梁，支撑立柱共四根，相邻支撑立柱之间通过横梁连接以提高主机框架结构的稳定性，导向光杆共有两根，任意一根的上、下两端分别与顶板和底板相连；The frame structure of the main frame includes a base plate 101, a top plate 102, a supporting column 103, a light guiding rod 104 and a crossbeam. There are two in total, and the upper and lower ends of any one are respectively connected with the top plate and the bottom plate;
所述的围岩模拟装置，包括上侧钢管201、下侧钢管202、挂钩和冲击盘；上侧钢管和下侧钢管通过凸台相连，既能防止两者轴心偏斜，又能使两者受到拉力时可以方便的脱离，挂钩的下端通过螺纹与上侧钢管连接，挂钩的上端可以挂在试样夹具上；冲击盘固定在下侧钢管的外侧，用于承受锤体组件的冲击，并将冲击力传递给下侧钢管；The surrounding rock simulation device includes an upper steel pipe 201, a lower steel pipe 202, a hook, and an impact plate; the upper steel pipe and the lower steel pipe are connected through a boss, which can prevent both axes from being deflected, and can make the two It can be easily disengaged when subjected to tension, the lower end of the hook is connected with the upper steel pipe through threads, and the upper end of the hook can be hung on the sample fixture; the impact plate is fixed on the outer side of the lower steel pipe to withstand the impact of the hammer assembly, and Transmit the impact force to the lower steel pipe;
所述的锚杆试件，包括杆体301、托盘302和螺母，杆体安装在上述围岩模拟装置的上侧钢管和下侧钢管中，通过砂浆或树脂锚固剂固定，托盘与下侧钢管的低端接触，螺母用于固定托盘；The anchor rod test piece includes a rod body 301, a tray 302 and a nut. The rod body is installed in the upper steel pipe and the lower steel pipe of the above-mentioned surrounding rock simulation device, and is fixed by mortar or resin anchoring agent. The lower distance between the tray and the lower steel pipe is end contacts, nuts are used to fix the tray;
所述的送样装置，包括固定构件、左右导轨、前后导轨、试样抓钩、抓钩手轮，所述的固定构件用于将送样装置固定在主机框架结构的支撑立柱上，通过抓钩手轮可以控制试样抓钩抓、放试样；The sample delivery device includes a fixing member, left and right guide rails, front and rear guide rails, a sample grabber, and a grabber handwheel. The hook hand wheel can control the sample grabbing hook to grab and release the sample;
所述的试样升降组件，包括动力组件一401、螺纹杆402、试样夹具，动力组件一可以控制螺纹杆上下运动，试样夹具与螺纹杆下侧通过螺纹连接；试样升降组件可以将围岩模拟装置的上侧钢管固定在任意设定的高度；The sample lifting assembly includes a power assembly 401, a threaded rod 402, and a sample clamp. The power assembly 1 can control the threaded rod to move up and down, and the sample clamp is threadedly connected to the lower side of the threaded rod; the sample lifting assembly can The upper steel pipe of the surrounding rock simulation device is fixed at any set height;
所述的锤体组件5，包括锤头、锤头座、主锤体、配重砝码、砝码锁紧套、砝码锁紧杆，在主锤体上预留有上下通透的两个导向光杆孔和围岩模拟装置孔，锤体组件工作时整体沿导向光杆下落，对围岩模拟装置的冲击盘施加冲击荷载；The hammer body assembly 5 includes a hammer head, a hammer head seat, a main hammer body, a counterweight weight, a weight locking sleeve, and a weight locking rod, and two upper and lower transparent holes are reserved on the main hammer body. A guide polished rod hole and a surrounding rock simulation device hole, the hammer body assembly falls along the guide polished rod as a whole when working, and an impact load is applied to the impact plate of the surrounding rock simulation device;
所述的提锤装置，包括动力组件二601，电磁铁牵引机构602，抓锤自锁机构，动、静滑轮组，提锤链条；用于抓起或释放锤体，以及将锤体组件提升到设定高度；The hammer lifting device includes a power assembly 2 601, an electromagnet traction mechanism 602, a hammer self-locking mechanism, a dynamic and static pulley block, and a hammer lifting chain; it is used to grab or release the hammer body, and lift the hammer body assembly to set height;
所述的电气控制系统，包含触摸屏、PLC、主命令控制按钮、伺服控制器、安全限位开关，用于操控整台试验机的正常指令运行；The electrical control system includes a touch screen, PLC, a main command control button, a servo controller, and a safety limit switch, and is used to control the normal command operation of the entire testing machine;
所述的缓冲装置7，采用液压缓冲油缸，安装在主机框架结构的底板上，在锚杆受冲击后产生破断的情况下，吸收锤体组件冲击能量，防止锤体组件直接冲击主机框架结构的底板；The buffer device 7 adopts a hydraulic buffer oil cylinder and is installed on the bottom plate of the frame structure of the main frame. When the anchor rod is broken after being impacted, it absorbs the impact energy of the hammer assembly and prevents the hammer assembly from directly impacting the frame structure of the main frame. floor;
所述的防护装置，包含声光报警系统、维护用安全爬梯、下安全防护罩、上安全防护网、安全门，用于保护设备操作员的人身安全，维持整机的运行安全。The protective device includes an audible and visual alarm system, a safety ladder for maintenance, a lower safety shield, an upper safety net, and a safety door, which are used to protect the personal safety of equipment operators and maintain the safe operation of the whole machine.
所述的冲击荷载测量系统，包括压力传感器、导线、数据采集器，压力传感器安装在锤头和锤头座之间，用于实时测量实验过程中试件受到的冲击荷载。The impact load measuring system includes a pressure sensor, a wire, and a data collector. The pressure sensor is installed between the hammer head and the hammer head seat, and is used for real-time measurement of the impact load on the test piece during the experiment.
所述的位置测量系统，包括非接触位置传感器、导线、数据采集器，非接触位置传感器用于实时测量实验过程中锤体组件的位置，进而计算得到其速度和加速度。The position measurement system includes a non-contact position sensor, a wire, and a data collector. The non-contact position sensor is used to measure the position of the hammer assembly in real time during the experiment, and then calculate its velocity and acceleration.
本发明的试验方法是：Test method of the present invention is:
1）首先将围岩模拟装置的上侧钢管和下侧钢管对接，安装挂钩和冲击盘；然后在上侧钢管和下侧钢管填充混凝土用于模拟围岩，待混凝土凝固后在其中心钻孔；然后通过砂浆或树脂锚固剂将锚杆的杆体固定在钻孔中；最后安装托盘和螺母；1) First connect the upper steel pipe and the lower steel pipe of the surrounding rock simulation device, install the hook and the impact plate; then fill the upper steel pipe and the lower steel pipe with concrete to simulate the surrounding rock, and drill a hole in the center after the concrete solidifies ; Then fix the rod body of the anchor rod in the drill hole through mortar or resin anchoring agent; finally install the tray and nut;
2）设置锤体组件的重量并固定好配重砝码，通过提锤装置和动力组件将其提升到一定高度，通过送样装置将围岩模拟装置托起，将其挂钩固定在试样升降组件的试样夹具上，进而调节试样至实验设计高度；2) Set the weight of the hammer body assembly and fix the counterweight, lift it to a certain height through the hammer lifting device and power assembly, lift the surrounding rock simulation device through the sample delivery device, and fix its hook on the sample lifting On the sample fixture of the component, and then adjust the sample to the experimental design height;
3）通过提锤装置释放锤体组件，锤体组件自由落体冲击围岩模拟装置下侧钢管上的冲击盘，由于锚杆的下端与下侧钢管通过锚固剂粘结，同时还有托盘和螺母的阻挡，冲击荷载通过下侧钢管传递到锚杆试件，从而给锚杆试件施加冲击荷载；3) Release the hammer body assembly through the hammer lifting device, and the hammer body assembly freely falls to impact the impact plate on the lower steel pipe of the surrounding rock simulation device. Since the lower end of the anchor rod is bonded to the lower steel pipe through the anchoring agent, there are also trays and nuts The impact load is transmitted to the anchor rod specimen through the lower steel pipe, thereby applying an impact load to the anchor rod specimen;
4）在上述实验过程中，通过冲击荷载测量系统实时测量实验过程中试件受到的冲击荷载；通过位置测量系统实时测量锤体组件的位置，进而计算得到锤体的速度和加速度数据；实验完成后，提起锤体组件，卸下围岩模拟装置，记录分析试件的破坏情况。4) During the above experiment process, the impact load on the specimen during the experiment is measured in real time by the impact load measurement system; the position of the hammer body assembly is measured in real time by the position measurement system, and then the velocity and acceleration data of the hammer body are calculated; the experiment is completed Finally, lift the hammer body assembly, remove the surrounding rock simulation device, and record and analyze the damage of the test piece.
以上所述实施例，只是本发明较优选的具体的实施方式的一种，本领域的技术人员在本发明技术方案范围内进行的通常变化和替换都应包含在本发明的保护范围内。The above-described embodiments are only one of the more preferred specific implementation modes of the present invention, and the usual changes and replacements performed by those skilled in the art within the scope of the technical solutions of the present invention shall be included in the protection scope of the present invention.
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Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111579229A (en) * | 2020-05-19 | 2020-08-25 | 中国水利水电科学研究院 | Test device for researching prestress transmission rule of anchor cable and working method thereof |
| CN111929020A (en) * | 2020-08-14 | 2020-11-13 | 王�琦 | Method and system for testing impact resistance of underground engineering anchoring system |
| CN112525733B (en) * | 2020-11-18 | 2023-03-17 | 中煤科工开采研究院有限公司 | Anchor rod impact strength in-situ testing device and testing method |
| CN112540013A (en) * | 2020-11-24 | 2021-03-23 | 西华大学 | Impact test device for rod-shaped anchoring assembly |
| CN112798212B (en) * | 2021-02-03 | 2022-06-17 | 中煤科工开采研究院有限公司 | Anchor rod axial impact test bed and test method |
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| CN112903482A (en) * | 2021-02-03 | 2021-06-04 | 中煤科工开采研究院有限公司 | Multifunctional test bed for testing impact load of mining support material and test method |
| CN112781979B (en) * | 2021-02-03 | 2022-09-09 | 中煤科工开采研究院有限公司 | Testing method of anchor rod lateral impact test bed |
| CN113916691B (en) * | 2021-09-16 | 2024-09-17 | 中煤科工开采研究院有限公司 | Dynamic load testing method for supporting plate and cushion layer combined structure |
| CN115495937B (en) * | 2022-11-15 | 2023-03-24 | 中国矿业大学(北京) | Underground engineering anchored surrounding rock impact-resistant energy-absorbing support design method |
| CN116148058B (en) * | 2023-01-04 | 2024-01-30 | 山东科技大学 | A true triaxial laboratory test method for rock mass based on first unloading and then anchoring |
| CN116086752B (en) * | 2023-01-09 | 2024-05-07 | 中煤科工开采研究院有限公司 | Repeated impact resistance testing device and analysis method for anchor bolt support system |
Family Cites Families (5)
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| CN103134725B (en) * | 2011-11-29 | 2014-11-05 | 中国科学院武汉岩土力学研究所 | Anchor rod performance test device |
| CN202599766U (en) * | 2012-04-13 | 2012-12-12 | 山东大学 | Multifunctional test machine for anchorage performance of deep surrounding rock |
| DE202012005241U1 (en) * | 2012-04-24 | 2012-11-09 | Klaus-Peter Schmidt | Erdei impact armature |
| CN103234830B (en) * | 2013-05-23 | 2015-01-07 | 湖南科技大学 | Anchoring property experiment platform of anchor rod |
| CN103471941B (en) * | 2013-09-18 | 2015-07-15 | 山东科技大学 | Anchor rod shock resistance simulation test system |
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