CN112878372A - Open cut tunnel structure and construction method thereof - Google Patents
Open cut tunnel structure and construction method thereof Download PDFInfo
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- CN112878372A CN112878372A CN202110020321.8A CN202110020321A CN112878372A CN 112878372 A CN112878372 A CN 112878372A CN 202110020321 A CN202110020321 A CN 202110020321A CN 112878372 A CN112878372 A CN 112878372A
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- 238000010276 construction Methods 0.000 title claims abstract description 35
- 239000002689 soil Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000004575 stone Substances 0.000 claims description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 10
- 238000013016 damping Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241001270131 Agaricus moelleri Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses an open cut tunnel structure which comprises a plurality of first prefabricated anti-slide piles, a plurality of second prefabricated anti-slide piles, first prefabricated baffle plates and second prefabricated baffle plates, wherein the first prefabricated anti-slide piles are inserted at the first side of a cutting at intervals in rows; the height of the first baffle is higher than that of the first slide-resistant pile, the height of the second prefabricated baffle is higher than that of the second prefabricated slide-resistant pile, and a top plate is connected between the tops of the first prefabricated slide-resistant pile and the second prefabricated slide-resistant pile. The open cut tunnel structure and the construction method thereof adopt the prefabricated slide-resistant piles and the prefabricated baffles to be directly assembled and molded, the construction is simple and convenient, the construction period is short, the work efficiency is high, the large excavation and the large excavation are avoided, and the construction site is saved to the maximum extent.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a open cut tunnel structure and a construction method thereof.
Background
As roads are built to mountain areas which are more and more remote, various tunnel engineering cases are gradually increased, wherein open cut tunnel engineering in a form of a weight-keeping structure is adopted. The open cut tunnel is an important structure of tunnel engineering, is also an effective means for treating diseases such as cracking landslide and mud-flowing rockfall of a cutting, has a good effect on the aspect of guaranteeing the operation safety of traffic lines, is limited by various factors such as technical conditions, topographic and geological conditions, line selection and safe operation, and is more and more common in the case of constructing the open cut tunnel in a high and steep slope section.
At present, most open cut tunnels widely applied in tunnel open cut tunnel engineering are arch open cut tunnels, generally consist of arch structures, side walls and inverted arches, and adopt a single-hole form when the width of a roadbed is small; when the roadbed is wide, the roadbed takes a double-hole form. The open cut tunnel construction process generally comprises: firstly, excavating by adopting an open cut method, and supporting an edge slope; assembling an integral type template trolley; binding inverted arch steel bars and pouring concrete; binding reinforcing steel bars on the arch wall; pouring the concrete of the arch wall, removing the template within a specified time after the strength of the concrete meets the requirement; seventhly, filling earth and stones on the arch backs of the open cut tunnels.
The open cut tunnel structure in the prior art has the following defects: 1. the requirement on the construction site is high, and the method is not economical; the arched open cut tunnel is difficult to be connected with the roadbed in the same direction, and the excavation width is large; open cut tunnel concrete pouring needs a large-scale lining trolley, which requires that a construction site must provide a large enough field to meet the requirement of lining trolley assembly, and the field is smooth and stable; for the open cut tunnel, although the work load is not large, a special lining trolley is needed, and unnecessary waste is caused. 2. The quality of the open cut tunnel lining structure is difficult to ensure. The cast-in-place concrete pouring is labor-consuming, time-consuming and low in efficiency, hydration heat and harmful temperature cracks generated in the process of pouring large-volume concrete are difficult to control, the safety and durability of a lining structure are difficult to guarantee, and later-period maintenance is difficult. 3. The construction risk is big, and when excavating open cut tunnel foundation trench, interim side and upward slope is higher, and exposes for a long time, easily causes the incident such as unstability, collapse. The earth above the open cut tunnel is thick, and in order to reduce the height of the side and elevation slope of the deep cutting section and ensure the stability of the side and elevation slope, a thick soil layer needs to be backfilled at the top of the open cut tunnel, so that the stress of the open cut tunnel is more complex, and the requirement on a building structure is also improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a open cut tunnel structure to solve the technical problems that: the construction period is long, the field requirement is high, the slope excavation is large in damage to the environment, the process is complex, the concrete hydration heat and temperature cracks are large in influence on the engineering quality, and the space utilization is unreasonable. Another object of the present invention is to provide a method for constructing a open cut tunnel structure.
In order to achieve the purpose, the invention provides an open cut tunnel structure, which comprises a plurality of first prefabricated anti-slide piles, a plurality of second prefabricated anti-slide piles, first prefabricated baffle plates and second prefabricated baffle plates, wherein the first prefabricated anti-slide piles are inserted at the first side of a cutting at intervals in a row;
the height of the first baffle is higher than that of the first slide-resistant pile, the height of the second prefabricated baffle is higher than that of the second prefabricated slide-resistant pile, and a top plate is connected between the tops of the first prefabricated slide-resistant pile and the second prefabricated slide-resistant pile.
Preferably, the first prefabricated baffle plate comprises a plurality of first sub baffle plates which are sequentially arranged in rows, the second prefabricated baffle plate comprises a plurality of second sub baffle plates which are sequentially arranged in rows, and H-shaped steel plates are inserted between the adjacent first sub baffle plates and between the adjacent second sub baffle plates.
As a preferred scheme, vertical grooves for inserting corresponding first prefabricated baffles or second prefabricated baffles and reserved grooves for inserting and connecting adjacent first sub baffles or adjacent second sub baffles by the H-shaped steel plates are reserved on the first prefabricated anti-slide piles and the second prefabricated anti-slide piles;
concrete is poured into the vertical grooves and the reserved grooves.
As a preferred scheme, the upper portion of roof is fixed in proper order and is equipped with concrete integrated layer and waterproof layer, the upper portion of waterproof layer is equipped with hole top backfill.
Preferably, the top edges of the hole top backfilling soil are provided with hole top ditches extending along the length direction of the cutting.
Preferably, the side of the surface of the cutting adjacent to the first prefabricated anti-slide pile and the side of the surface of the cutting adjacent to the second prefabricated anti-slide pile are provided with roadbed kerbs.
And as a preferred scheme, foundation grooves for inserting the first prefabricated anti-slide pile, the second prefabricated anti-slide pile, the first prefabricated baffle and the second prefabricated baffle are reserved on two sides of the cutting.
A construction method of a open cut tunnel structure comprises the following steps:
s1: sequentially inserting a first prefabricated anti-slide pile, a second prefabricated anti-slide pile, a first prefabricated baffle and a second prefabricated baffle into two sides of a cutting;
s2: excavating and supporting a side-up slope;
s3: arranging a damping support when cutting earth and stones in the range of the open cut tunnel are excavated to reach the pedestal surface, and erecting a prestressed hollow slab or a small box girder;
s3: applying concrete integrated layer, waterproof layer and other auxiliary structures;
s4: and excavating earth and stone squares in the open cut tunnel.
Preferably, the step S1 further includes: the first prefabricated baffle plate comprises a plurality of first sub baffle plates which are sequentially arranged in rows, and the second prefabricated baffle plate comprises a plurality of second sub baffle plates which are sequentially arranged in rows;
the first prefabricated slide-resistant pile is reserved with a vertical groove used for the first prefabricated baffle, the second prefabricated slide-resistant pile is reserved with a vertical groove used for the second prefabricated baffle, and H-shaped steel plates are inserted between every two adjacent first sub-baffles and between every two adjacent second sub-baffles.
Vertical grooves for the first prefabricated baffle or the second prefabricated baffle to be inserted and arranged and reserved grooves for the H-shaped steel plates to be inserted and arranged to connect the adjacent first sub-baffles or the adjacent second sub-baffles are reserved on the first prefabricated anti-slide pile and the second prefabricated anti-slide pile;
concrete is poured into the vertical grooves and the reserved grooves.
Preferably, the step S3 further includes: backfilling and covering soil, and then arranging a tunnel top ditch.
Preferably, the method further comprises step S5: and constructing a roadbed pavement and a side ditch in the open cut tunnel.
Compared with the prior art, the invention has the beneficial effects that:
the open cut tunnel structure comprises a plurality of first prefabricated anti-slide piles which are arranged on a first side of a cutting in a row at intervals, a plurality of second prefabricated anti-slide piles which are arranged on a second side of the cutting in a row at intervals, first prefabricated baffles which are inserted on the plurality of first prefabricated anti-slide piles and second prefabricated baffles which are inserted on the plurality of second prefabricated anti-slide piles; the height of the first baffle is higher than that of the first slide-resistant pile, the height of the second prefabricated baffle is higher than that of the second prefabricated slide-resistant pile, and a top plate is connected between the tops of the first prefabricated slide-resistant pile and the second prefabricated slide-resistant pile. The prefabricated slide-resistant piles and the prefabricated baffles can be directly assembled and molded, construction is simple and convenient, construction period is short, work efficiency is high, large excavation is avoided, and construction site is saved to the maximum extent.
The open cut tunnel structure of the invention has the following advantages:
1. the construction quality is good, and the construction period is short; the main structure of the open cut tunnel is formed by assembling prefabricated square piles, prefabricated soil retaining plates and prefabricated top plates, a template trolley is not needed, the quality of a lining structure is guaranteed, the construction process is simple, convenient and quick, the mechanization degree is high, and the requirement on a construction site is low.
2. And the soil is connected with the route in the same direction, so that the excavated volume of the earth is reduced. Different from the traditional double-arch open cut tunnel, the single-span straight-wall flat-top open cut tunnel is in direct connection with the roadbed through the vertical retaining structure, the excavation width does not need to be enlarged to two sides, and unnecessary earth and stone excavation is reduced.
3. The construction risk is small. When the open cut tunnel structure is constructed, the supporting structures on two sides of the cutting are firstly manufactured, then the top plate is erected, and finally the roadbed earthwork is excavated.
4. Improve the stress of the open cut tunnel structure. The top plate structure is equivalent to that a horizontal support is arranged at the tops of the anti-slide piles at the two sides of the roadbed, so that the horizontal displacement of the anti-slide piles is effectively limited, and the stability of a roadbed side slope is facilitated; the prefabricated top plate is a prestressed hollow plate or a prestressed small box girder, the thickness of the prefabricated top plate is 0.8-1.6 m, and the position of the rubber support with the damping effect can be adjusted according to the height of the slide-resistant pile, so that the thickness of the covering soil can be greatly reduced, the height of a side slope is reduced, and the structural stress of the open cut tunnel is improved.
Drawings
FIG. 1 is a schematic cross-sectional structure diagram of the open cut tunnel structure of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
fig. 3 is a schematic structural view of a section B-B in fig. 1.
In the figure, 1, a first prefabricated baffle; 2. a first prefabricated slide-resistant pile; 3. a top plate; 4. (ii) a A concrete integrated layer; 5. a waterproof layer; 6. filling soil back to the top of the hole; 7. a tunnel top ditch; 8. a hole top slope; 9. a topographical line; 10. a roadbed side ditch; 11. cutting; 12. reserving a groove; 13. h-shaped steel plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The open cut tunnel structure of the invention is shown in fig. 1 to fig. 3, wherein 9 is a terrain line, and comprises a plurality of first prefabricated anti-slide piles 2 which are inserted into a first side of a cutting 11 at intervals in rows, a plurality of second prefabricated anti-slide piles which are inserted into a second side of the cutting at intervals in rows, first prefabricated baffles 1 which are inserted into the plurality of first prefabricated anti-slide piles 2, and second prefabricated baffles which are inserted into the plurality of second prefabricated anti-slide piles; specifically, the foundation grooves are formed in two sides of the cutting 11 and used for inserting the first prefabricated anti-slide pile 2 and the second prefabricated anti-slide pile, and meanwhile, vertical grooves are formed in the first prefabricated anti-slide pile 2 and the second prefabricated anti-slide pile and used for inserting the first prefabricated baffle 1 or the second prefabricated baffle. Like this, first prefabricated friction pile 2, the prefabricated friction pile of second, concatenation installation after first prefabricated baffle 1 and the prefabricated baffle of second are all prefabricated in advance to accomplish, compared prior art, need not adopt machines such as form-table car, and simultaneously, the height that highly is higher than first prefabricated friction pile 2 of first prefabricated baffle 1, the height that highly is higher than the prefabricated friction pile of second of prefabricated baffle, be connected with roof 3 between the top of first prefabricated friction pile 2 and the prefabricated friction pile of second, roof 3 is also prefabricated, form open cut tunnel structure, whole construction is simple and convenient, the time limit for a project is short work efficiency high, avoid opening greatly and dig, the maximize is practiced thrift the construction site.
Specifically, first prefabricated baffle 1 includes a plurality of first branch baffles that arrange in a row in proper order, and a plurality of first branch baffles splice and form first prefabricated baffle 1, and second prefabricated baffle includes a plurality of second branch baffles that arrange in a row in proper order, and a plurality of second branch baffles splice and form second prefabricated baffle. It is specific, all insert between the adjacent first minute baffle and between the adjacent second minute baffle and be equipped with H shaped steel board 13, the space between the adjacent first minute baffle in this application and between the adjacent second minute baffle is located corresponding prefabricated friction pile 2 or the prefabricated friction pile of second, it has reserve groove 12 specifically all to reserve on first prefabricated friction pile 2 and the prefabricated friction pile of second, insert in reserve groove 12 and establish H shaped steel board 13, then pour the concrete in vertical groove and reserve groove 12 and can fix the open cut tunnel structure of this application as an organic whole. The construction process is simple, and the construction time period and efficiency are high.
Further, the upper portion of roof 3 is fixed in proper order and is equipped with concrete wholeization layer 4 and waterproof layer 5, and the upper portion of waterproof layer 5 is equipped with the hole top and returns the filling soil 6, and the top edge of hole top backfill soil 6 all is equipped with hole top ditch 7 along 11 length direction extensions of cutting, and hole top ditch 7 is close to hole top side slope 8 department, accomplishes the construction on hole top.
Wherein, the side of the surface of cutting 11 adjacent with first prefabricated friction pile 2 and the side adjacent with the prefabricated friction pile of second all are equipped with road bed gutter 10.
An embodiment of a construction method of a open cut tunnel structure comprises the following steps:
s1: sequentially inserting a first prefabricated anti-slide pile 2, a second prefabricated anti-slide pile, a first prefabricated baffle 1 and a second prefabricated baffle into two sides of a cutting 11;
s2: excavating and supporting a side-up slope;
s3: arranging a damping support when cutting 11 earth and stone in the range of the open cut tunnel is excavated to the surface of the pedestal, and erecting a prestressed hollow slab or a small box girder;
s3: applying auxiliary structures such as a concrete integrated layer 4, a waterproof layer 5 and the like;
s4: and excavating earth and stone squares in the open cut tunnel.
Wherein, step S1 further includes: the first prefabricated baffle 1 comprises a plurality of first sub-baffles which are sequentially arranged in rows, and the second prefabricated baffle comprises a plurality of second sub-baffles which are sequentially arranged in rows; a vertical groove for the first prefabricated baffle plate 1 is reserved in the first prefabricated slide-resistant pile 2, a vertical groove for the second prefabricated baffle plate is reserved in the second prefabricated slide-resistant pile, and H-shaped steel plates 13 are inserted between every two adjacent first branch baffle plates and between every two adjacent second branch baffle plates. Vertical grooves for inserting the first prefabricated baffle plate 1 or the second prefabricated baffle plate and a reserved groove 12 for inserting an H-shaped steel plate 13 to connect the adjacent first branch baffle plate or the adjacent second branch baffle plate are reserved on the first prefabricated anti-slide pile 2 and the second prefabricated anti-slide pile; concrete is poured into the vertical grooves and the reserved grooves 12.
Further, step S3 further includes: backfilling and covering soil, and then arranging a tunnel top ditch 7.
Further, step S4 is followed by step S5: and constructing a roadbed pavement and a roadbed side ditch 10 in the open cut tunnel.
The open cut tunnel structure and the construction method have the following advantages:
1. the construction quality is good, and the construction period is short; the main structure of the open cut tunnel is formed by assembling prefabricated square piles, prefabricated soil retaining plates and prefabricated top plates, a template trolley is not needed, the quality of a lining structure is guaranteed, the construction process is simple, convenient and quick, the mechanization degree is high, and the requirement on a construction site is low.
2. And the soil is connected with the route in the same direction, so that the excavated volume of the earth is reduced. Different from the traditional double-arch open cut tunnel, the single-span straight-wall flat-top open cut tunnel is in direct connection with the roadbed through the vertical retaining structure, the excavation width does not need to be enlarged to two sides, and unnecessary earth and stone excavation is reduced.
3. The construction risk is small. When the open cut tunnel structure is constructed, the supporting structures on two sides of the cutting are firstly manufactured, then the top plate is erected, and finally the roadbed earthwork is excavated.
4. Improve the stress of the open cut tunnel structure. The top plate structure is equivalent to that a horizontal support is arranged at the tops of the anti-slide piles at the two sides of the roadbed, so that the horizontal displacement of the anti-slide piles is effectively limited, and the stability of a roadbed side slope is facilitated; the prefabricated top plate is a prestressed hollow plate or a prestressed small box girder, the thickness of the prefabricated top plate is 0.8-1.6 m, and the position of the rubber support with the damping effect can be adjusted according to the height of the slide-resistant pile, so that the thickness of the covering soil can be greatly reduced, the height of a side slope is reduced, and the structural stress of the open cut tunnel is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110020321.8A CN112878372A (en) | 2021-01-07 | 2021-01-07 | Open cut tunnel structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110020321.8A CN112878372A (en) | 2021-01-07 | 2021-01-07 | Open cut tunnel structure and construction method thereof |
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| CN112878372A true CN112878372A (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110020321.8A Pending CN112878372A (en) | 2021-01-07 | 2021-01-07 | Open cut tunnel structure and construction method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234716B1 (en) * | 1995-11-17 | 2001-05-22 | Carlo Chiaves | Underground structural work including prefabricated elements associated with piles and a process for its production |
| CN104018405A (en) * | 2014-06-04 | 2014-09-03 | 北京工业大学 | Pile-anchor-frame composite double-layer roadbed structure |
| CN107938689A (en) * | 2017-12-01 | 2018-04-20 | 中铁二院工程集团有限责任公司 | A kind of small deformation stake beam type cutting frame structure and its construction method |
| CN108103867A (en) * | 2018-01-02 | 2018-06-01 | 兰州理工大学 | A kind of hangar tunnel formula antiskid structure and construction method with roadnet |
| CN109162297A (en) * | 2018-09-29 | 2019-01-08 | 吴帆 | A kind of the solid-liquid separating shed hole structure and its construction method of anti-mud-rock flow |
| CN111501423A (en) * | 2020-04-27 | 2020-08-07 | 中铁二院工程集团有限责任公司 | 400km/h and above high-speed rail strong expansive rock deep cutting integral supporting and retaining structure and construction method |
| CN211524819U (en) * | 2020-02-03 | 2020-09-18 | 四川省交通勘察设计研究院有限公司 | Disaster reduction and prevention frame open cut tunnel structure suitable for mountain highway |
| CN111852170A (en) * | 2020-08-25 | 2020-10-30 | 中机中联工程有限公司 | A frame type roadbed support structure |
-
2021
- 2021-01-07 CN CN202110020321.8A patent/CN112878372A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234716B1 (en) * | 1995-11-17 | 2001-05-22 | Carlo Chiaves | Underground structural work including prefabricated elements associated with piles and a process for its production |
| CN104018405A (en) * | 2014-06-04 | 2014-09-03 | 北京工业大学 | Pile-anchor-frame composite double-layer roadbed structure |
| CN107938689A (en) * | 2017-12-01 | 2018-04-20 | 中铁二院工程集团有限责任公司 | A kind of small deformation stake beam type cutting frame structure and its construction method |
| CN108103867A (en) * | 2018-01-02 | 2018-06-01 | 兰州理工大学 | A kind of hangar tunnel formula antiskid structure and construction method with roadnet |
| CN109162297A (en) * | 2018-09-29 | 2019-01-08 | 吴帆 | A kind of the solid-liquid separating shed hole structure and its construction method of anti-mud-rock flow |
| CN211524819U (en) * | 2020-02-03 | 2020-09-18 | 四川省交通勘察设计研究院有限公司 | Disaster reduction and prevention frame open cut tunnel structure suitable for mountain highway |
| CN111501423A (en) * | 2020-04-27 | 2020-08-07 | 中铁二院工程集团有限责任公司 | 400km/h and above high-speed rail strong expansive rock deep cutting integral supporting and retaining structure and construction method |
| CN111852170A (en) * | 2020-08-25 | 2020-10-30 | 中机中联工程有限公司 | A frame type roadbed support structure |
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