CN112411583A - Integrated form side slope drainage reinforcerment system - Google Patents
Integrated form side slope drainage reinforcerment system Download PDFInfo
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- CN112411583A CN112411583A CN202011435010.XA CN202011435010A CN112411583A CN 112411583 A CN112411583 A CN 112411583A CN 202011435010 A CN202011435010 A CN 202011435010A CN 112411583 A CN112411583 A CN 112411583A
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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
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
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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
- E02D29/02—Retaining or protecting walls
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/40—Miscellaneous comprising stabilising elements
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses an integrated side slope drainage reinforcement system, and relates to the technical field of geological disaster prevention and control. Drainage reinforcerment system including the vertical drainage structures who is used for collecting the slope soil body infiltration, be used for the horizontal drainage channel with the infiltration discharge soil body, vertical drainage structures is the hollow columnar structure that extends along vertical direction, vertical drainage structures is inside to be provided with the vertical drainage channel who extends along the equidirectional, vertical drainage structures lateral wall is provided with and is used for communicateing vertical drainage channel and the outside soil body infiltration passageway of vertical drainage structures, horizontal drainage channel and vertical drainage channel intercommunication. The invention can effectively collect accumulated water in the slope and discharge the accumulated water to the outside of the slope, thereby reducing the water content of the rock-soil body of the slope, weakening the erosion and softening effects of rainwater on the sliding body and the sliding surface and weakening the attenuation degree of the physical and mechanical properties of the slope body caused by water. And meanwhile, the vertical drainage structure and the arranged retaining wall are used as a supporting structure to further improve the stability of the side slope.
Description
Technical Field
The invention belongs to the technical field of geological disaster prevention and control, and particularly relates to an integrated side slope drainage reinforcement system.
Background
With the rapid development of economic construction in China, the scale of human engineering activities such as hydropower construction, traffic construction, open-pit mining and the like is continuously enlarged, and the life and property of people are greatly threatened and lost due to the limitation of engineering geological conditions of a field area and the influence of background factors of natural environment caused by series of geological disasters caused by slope instability. Therefore, single or comprehensive treatment measures such as drainage, retaining, load shedding, back pressure, vegetation greening, etc. have to be taken to improve the stability of the landslide.
In a sense, landslide has the characteristic of 'no water and no slide'. Therefore, the water control is the most effective way for improving the physical and mechanical characteristics of the sliding body and the sliding surface and is the important embodiment of the landslide permanent cure idea, but because of the particularity and complexity of the activities of surface water and underground water, the possibility of completely blocking the water seepage and drainage ways of the landslide is almost impossible, and other effective treatment measures are further required to be adopted for comprehensive treatment, wherein the comprehensive treatment measures of drainage and supporting and blocking are most commonly applied.
Disclosure of Invention
In the prior art, the functional interactivity of the slope drainage engineering and the retaining engineering is poor, the adopted structural functionality is single, and the overall design, construction and maintenance are complex. Therefore, how to make the structure simultaneously play the functions of drainage and retaining is an urgent technical problem to be solved by those skilled in the art for the slope with insufficient reliability, especially the expansive soil slope.
Therefore, in the technical field of geological disaster prevention, a system with functions of drainage and retaining is needed. Therefore, the invention provides an integrated side slope drainage reinforcement system which is used for solving the problems by the following technical key points:
the utility model provides an integrated form side slope drainage reinforcerment system, its characterized in that, drainage reinforcer system is including the vertical drainage structures who is used for collecting the infiltration of the side slope soil body, the horizontal drainage channel who is used for the drainage soil body that will seep water, vertical drainage structures is the hollow columnar structure who extends along vertical direction, the inside vertical drainage channel who extends along the equidirectional that is provided with of vertical drainage structures, vertical drainage structures lateral wall is provided with and is used for communicateing vertical drainage channel and the outside soil body infiltration passageway of vertical drainage structures, horizontal drainage channel and vertical drainage channel intercommunication.
As mentioned above, the invention provides an integrated drainage reinforcement system, the vertical drainage structure can effectively collect accumulated water in the slope, and the transverse drainage channel can discharge the accumulated water out of the soil body. The vertical drainage structure is a hollow columnar structure extending along the vertical direction, and the vertical drainage channel is arranged in a cavity of the vertical drainage structure. The vertical drainage structure can realize the effect of soil body reinforcement. Meanwhile, the water collecting device is used as a boundary to be enclosed at the periphery of the vertical drainage channel for collecting water, so that the function of a vertical drainage channel protective layer is achieved, the adverse conditions that the vertical drainage channel is staggered up and down due to sliding of a slope body and the like can be avoided, and the stability of the vertical drainage channel is favorably kept. Compared with the prior art that the drainage system and the reinforcing system are respectively arranged, the invention can reduce the engineering quantity and make the structure more compact.
The further technical scheme is as follows:
the bottom of the vertical drainage channel is connected with a water-stop block, a water-permeable body is arranged at the water inlet of the transverse drainage channel, and the water-permeable body is arranged close to the water-stop block. The top surface of the water-proof block is higher than the bottom surface of the water-permeable body and lower than the top surface of the water-permeable body. The technical characteristics can realize that the water in the vertical drainage channel is effectively guided into the transverse drainage channel, and the water in the vertical drainage channel is prevented from being enriched at the water-resisting block or further permeating to the deep part.
The side slope toe is provided with a retaining wall, a drainage ditch is arranged on the slope-facing surface of the retaining wall, and the transverse drainage channel penetrates through the retaining wall and is connected with the drainage ditch at the water outlet of the retaining wall. The setting of retaining wall can increase the stability of the soil body, the slope face that faces of retaining wall is provided with the escape canal for further dredging collects the groundwater to horizontal drainage channel in, guarantees that the soil body contains hydroenergy in the slope and is effectively discharged and released.
An end cover plate is arranged at the top of the vertical drainage structure and completely seals the top end of the vertical drainage structure. In the technical characteristics, the end cover plate which completely seals the top end of the vertical drainage structure can prevent the water on the slope from seeping downwards along the vertical drainage structure.
The end cover plate and the vertical drainage channel are arranged at intervals. In the technical characteristics, a certain gap exists between the top end of the vertical drainage channel and the bottom end of the end cover plate, so that the problem that the end cover plate collides with the vertical drainage channel due to manufacturing and construction errors and the vertical drainage channel is damaged due to compression can be avoided. On the other hand, the problem that the top end of the vertical drainage structure cannot be effectively sealed due to the obstruction of the drainage channel by the end cover plate can be avoided, and the inflow of slope water is difficult to effectively prevent. Namely, the end cover plate and the vertical drainage channel are arranged at intervals, so that a certain assembly allowance is reserved between the end cover plate and the vertical drainage channel, and the conflict caused by installation errors between the end cover plate and the vertical drainage channel is avoided.
The vertical drainage structure comprises a plurality of stiffening members extending in the vertical direction, the stiffening members are arranged at intervals in the horizontal plane and are enclosed around the vertical drainage channel, the intervals among the stiffening members are the soil body water seepage channels, and elastic supports are arranged among the stiffening members to be connected to form the integral vertical drainage channel. The technical characteristics describe the specific composition of the vertical drainage structure, namely the vertical drainage structure is composed of a plurality of elastic supports connected with stiffening members arranged at intervals, the intervals between the stiffening members can be used as soil body water seepage channels, and the vertical drainage structure can be scaled by being matched with the elastic supports so as to adapt to expansion and contraction deformation of a soil body, weaken the influence of the deformation of the soil body on the vertical drainage structure and other auxiliary structures of a side slope, and be beneficial to improving the stability of the system.
The stiffness component is provided with a mounting groove, the elastic support comprises a non-adaptive deformation section, a self-adaptive deformation section and a connecting end, the self-adaptive deformation section is used as the center, the two ends of the self-adaptive deformation section are connected with the connecting end through the non-adaptive deformation section, and the connecting end and the mounting groove are matched with each other to realize the assembly of the elastic support and the stiffness component. In the technical characteristics, the installation grooves and the connecting ends can realize the quick installation of the elastic support and the stiff components, so that the support structure is convenient to combine and convenient to construct. And the self-adaptive deformation section in the elastic support is used as a functional section for the elastic support to deform in a stretching way.
The maximum deformation of the self-adaptive deformation section is smaller than the spacing distance between adjacent stiff members, so that the adjacent stiff members are always kept at a spacing, and soil seepage can enter the vertical drainage channel.
In order to increase the strength and stability of the supporting structure, the two adjacent elastic supports arranged at an angle are staggered with each other, and the elastic supports are arranged along the longitudinal extension direction of the stiff component.
Compared with the prior art, the invention has the beneficial effects that:
the invention has scientific and reasonable structure and safe and convenient use. The side slope drainage reinforcement system provided by the invention comprises a vertical drainage structure, a transverse drainage channel and a water permeable body connected with the vertical drainage structure and the transverse drainage channel, wherein the end part of the transverse drainage channel penetrates through a retaining wall arranged at a slope toe, a drainage ditch is arranged on the slope-facing surface of the retaining wall and is used for effectively collecting accumulated water in a slope and draining the accumulated water out of the slope, so that the water content of a side slope rock-soil body is reduced, the erosion softening action of rainwater on a sliding body and a sliding surface is weakened, the physical and mechanical property attenuation degree of the slope body caused by water is weakened, the safety and reliability of the side slope are further controlled, and the engineering quantity of other matched treatment measures is reduced. Meanwhile, a vertical drainage structure is arranged outside the vertical drainage channel for collecting accumulated water in the slope, and the vertical drainage structure not only can play a role in protecting the vertical drainage channel, but also can play a role in improving the stability of the slope by matching with the retaining wall.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic overall layout of the present invention;
FIG. 2 is a schematic view of an end cover plate structure according to the present invention;
FIG. 3 is a schematic view of the elastic support structure of the present invention;
FIG. 4 is a schematic view of a vertical drainage configuration of the present invention;
in the figure: 1. sliding the bed; 2. an unstable slider; 3. a water line; 4. a vertical drainage structure; 5. a transverse drainage channel; 6. a water permeable body; 7. a retaining wall; 8. a drainage ditch; 9. an end cover plate; 10. a vertical drainage channel; 11. a stiffening element; 12. mounting grooves; 13. elastic support; 14. a water-insulating block; 15. a connecting end; 16. a non-adaptive deformation segment; 17. and (4) self-adapting to a deformation section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1:
as shown in the accompanying drawing 1, an integrated side slope drainage and reinforcement system is characterized in that the drainage and reinforcement system comprises a vertical drainage structure 4 for collecting water seepage of a side slope soil body and a horizontal drainage channel 5 for draining the seepage water out of the soil body, wherein the vertical drainage structure 4 is a hollow columnar structure extending along a vertical direction, vertical drainage channels 10 extending along the same direction are arranged inside the vertical drainage structure 4, a soil body seepage channel for communicating the vertical drainage channel 10 with the outside of the vertical drainage structure 4 is arranged on the side wall of the vertical drainage structure 4, and the horizontal drainage channel 5 is communicated with the vertical drainage channel 10.
As mentioned above, the invention provides an integrated drainage reinforcement system, the vertical drainage structure 4 can effectively collect accumulated water in the slope, and the transverse drainage channel 5 can discharge the accumulated water out of the soil body. The vertical drainage structures 4 are hollow columnar structures extending in the vertical direction, and the vertical drainage channels 10 are arranged in the cavities of the vertical drainage structures. The vertical drainage structure can realize the effect of soil body reinforcement. Meanwhile, the water collecting device is used as a boundary to be enclosed at the periphery of the vertical drainage channel 10 for collecting water, so that the function of a protective layer of the vertical drainage channel 10 is achieved, the adverse conditions that the vertical drainage channel 10 is staggered up and down due to sliding of a slope body and the like can be avoided, and the stability of the vertical drainage channel 10 is favorably kept. Compared with the prior art that the drainage system and the reinforcing system are respectively arranged, the invention can reduce the engineering quantity and make the structure more compact.
Example 2:
as shown in fig. 2-4, the present embodiment is further defined on the basis of embodiment 1:
the bottom of the vertical drainage channel 10 is connected with a water-isolating block 14, a water-permeable body 6 is arranged at the water inlet of the transverse drainage channel 5, and the water-permeable body 6 is arranged close to the water-isolating block 14. The top surface of the water-proof block 14 is higher than the bottom surface of the water-permeable body 6 and lower than the top surface of the water-permeable body 6. The technical characteristics can realize that the water in the vertical drainage channel 10 is effectively guided into the transverse drainage channel 5, and the water in the vertical drainage channel 10 is prevented from being enriched at the water-resisting block 14 or further permeating to the deep part.
The slope toe of side slope is provided with retaining wall 7, retaining wall 7 is faced domatic and is provided with escape canal 8, horizontal drainage channel 5 passes retaining wall 7, and its delivery port meets with escape canal 8. The setting of retaining wall 7 can increase the stability of the soil body, the slope face that faces of retaining wall 7 is provided with escape canal 8 for further leading collects the groundwater to horizontal drainage channel 5 in, guarantee that the soil body contains hydroenergy in the slope and is effectively discharged and released.
An end cover plate 9 is arranged at the top of the vertical drainage structure 4, and the end cover plate 9 completely seals the top end of the vertical drainage structure 4. In this technical feature, the end cover plate 9, which completely closes the top end of the vertical drainage structure 4, can prevent the slope water from infiltrating down the vertical drainage structure 4.
The end cover plate 9 and the vertical drainage channel 10 are arranged at intervals. In the technical characteristics, a certain gap is reserved between the top end of the vertical drainage channel 10 and the bottom end of the end cover plate 9, so that the problem that the end cover plate 9 collides with the vertical drainage channel 10 due to manufacturing and construction errors and the vertical drainage channel 10 is damaged due to compression can be avoided. On the other hand, the problem that the top end of the vertical drainage structure 4 cannot be effectively sealed due to the obstruction of the drainage channel by the end cover plate 9 can be avoided, and the inflow of slope water is difficult to effectively prevent. Namely, the interval arrangement of the end cover plate 9 and the vertical drainage channel 10 is kept, so that a certain assembly allowance is reserved between the end cover plate 9 and the vertical drainage channel 10, and the conflict between the end cover plate 9 and the vertical drainage channel due to installation errors is avoided.
The vertical drainage structure 4 comprises a plurality of stiffening members 11 extending in the vertical direction, the stiffening members 11 are arranged at intervals in the horizontal plane and are enclosed around the vertical drainage channel 10, the intervals between the stiffening members 11 are the soil body water seepage channels, and elastic supports 13 are arranged between the stiffening members 11 to be connected to form the integral vertical drainage channel 10. The technical characteristics describe the specific composition of the vertical drainage structure 4, namely the vertical drainage structure is composed of a plurality of stiffening members 11 connected and arranged at intervals by elastic supports 13, the intervals between the stiffening members 11 can be used as soil body water seepage channels, and the vertical drainage structure 4 can be zoomed by matching with the elastic supports 13 so as to adapt to the expansion and contraction deformation of the soil body, reduce the influence of the soil body deformation on the vertical drainage structure 4 and other side slope auxiliary structures, and be beneficial to improving the stability of the system.
The stiffening member 11 is provided with a mounting groove 12, the elastic support 13 comprises a non-adaptive deformation section 16, a self-adaptive deformation section 17 and a connecting end 15, the self-adaptive deformation section 17 is used as a center, the two ends of the self-adaptive deformation section 17 are connected with the connecting end 15 through the non-adaptive deformation section 16, and the connecting end 15 and the mounting groove 12 are matched with each other to realize the assembly of the elastic support 13 and the stiffening member 11. In the technical characteristics, the installation grooves 12 and the connecting ends 15 can realize the quick installation of the elastic supports 13 and the stiff members 11, so that the support structure is convenient to combine and convenient to construct. The adaptive deformation section 17 in the elastic support 13 serves as a functional section for the elastic support 13 to deform telescopically.
The maximum deformation of the self-adaptive deformation section 17 is smaller than the spacing distance between the adjacent stiff members 11, so that the spacing between the adjacent stiff members 11 is kept all the time, and soil seepage can enter the vertical drainage channel 10.
In order to increase the strength and stability of the supporting structure, the two adjacent elastic supports 13 arranged at an angle are staggered with each other, and the elastic supports 13 are arranged along the longitudinal extension direction of the stiff members 11.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides an integrated form side slope drainage reinforcerment system, its characterized in that, drainage reinforcer system is including vertical drainage structures (4) that are used for collecting the side slope soil body infiltration, horizontal drainage channel (5) that are used for the drainage soil body, vertical drainage structures (4) are the hollow columnar structure who extends along vertical direction, vertical drainage structures (4) inside is provided with vertical drainage channel (10) that extend along the same direction, vertical drainage structures (4) lateral wall is provided with and is used for communicateing vertical drainage channel (10) and vertical drainage structures (4) outside soil body infiltration channel, horizontal drainage channel (5) and vertical drainage channel (10) intercommunication.
2. The integrated slope drainage reinforcement system according to claim 1, wherein a water-blocking block (14) is connected to the bottom of the vertical drainage channel (10), a water-permeable body (6) is arranged at the water inlet of the horizontal drainage channel (5), the water-permeable body (6) and the water-blocking block (14) are arranged in a close manner, and the top surface of the water-blocking block (14) is higher than the bottom surface of the water-permeable body (6) and lower than the top surface of the water-permeable body (6).
3. An integrated side slope drainage reinforcement system as claimed in claim 1, wherein the side slope toe is provided with a retaining wall (7), the facing slope surface of the retaining wall (7) is provided with a drainage ditch (8), and the transverse drainage channel (5) passes through the retaining wall (7) and is connected with the drainage ditch (8) at the water outlet thereof.
4. An integrated slope drainage reinforcement system according to claim 1, characterized in that an end cover plate (9) is arranged on top of the vertical drainage structure (4), and the end cover plate (9) completely closes the top end of the vertical drainage structure (4).
5. An integrated slope reinforcement system according to claim 4, wherein the end cover plates (9) are spaced from the vertical drainage channels (10).
6. An integrated slope drainage reinforcement system according to claim 1, characterized in that the vertical drainage structure (10) comprises a plurality of stiffening members (11) extending in the vertical direction, the stiffening members (11) are arranged at intervals in the horizontal plane and surround the vertical drainage channels (10), the intervals between the stiffening members (11) are the soil body water seepage channels, and elastic supports (13) are arranged between the stiffening members (11) to connect and form the integral vertical drainage channels (10).
7. The integrated side slope drainage and reinforcement system according to claim 6, wherein the stiff members (11) are provided with mounting grooves (12), the elastic support (13) comprises non-adaptive deformation sections (16), adaptive deformation sections (17) and connecting ends (15), the adaptive deformation sections (17) are centered, the connecting ends (15) are connected to two ends of the adaptive deformation sections (17) through the non-adaptive deformation sections (16), and the connecting ends (15) are matched with the mounting grooves (12) to realize the assembly of the elastic support (13) and the stiff members (11).
8. An integrated highwall drainage reinforcement system according to claim 7, characterized in that the maximum deformation of the adaptive deformation segments (17) is less than the separation distance between adjacent stiff elements (11).
9. An integrated slope drainage reinforcement system according to claim 7, wherein the two adjacent angular elastic supports (13) are offset from each other, and the elastic supports (13) are arranged in the longitudinal extension direction of the stiffening elements (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011435010.XA CN112411583A (en) | 2020-12-10 | 2020-12-10 | Integrated form side slope drainage reinforcerment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011435010.XA CN112411583A (en) | 2020-12-10 | 2020-12-10 | Integrated form side slope drainage reinforcerment system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995599A (en) * | 2012-11-15 | 2013-03-27 | 西安理工大学 | Anti-freeze anti-seepage water diversion treatment method of collapsible loess water-conveyance canal |
| CN206015693U (en) * | 2016-09-10 | 2017-03-15 | 武汉科技大学 | A kind of upper side slope friction pile |
| CN207159997U (en) * | 2017-07-28 | 2018-03-30 | 江苏华都建设有限公司 | A kind of prefabricated pile of grouting behind shaft or drift lining |
| CN109137942A (en) * | 2018-11-09 | 2019-01-04 | 西安科技大学 | A kind of the expansive soil slope adaptive draining friction pile of deformation and construction method |
| CN110397059A (en) * | 2018-04-25 | 2019-11-01 | 上海城地建设股份有限公司 | A kind of compound tree root pile constructing process of preexisting hole stiffness |
| CN111691438A (en) * | 2020-06-22 | 2020-09-22 | 河北工业大学 | Anti-skidding-drainage comprehensive treatment method for landslide of large-scale accumulation body |
-
2020
- 2020-12-10 CN CN202011435010.XA patent/CN112411583A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995599A (en) * | 2012-11-15 | 2013-03-27 | 西安理工大学 | Anti-freeze anti-seepage water diversion treatment method of collapsible loess water-conveyance canal |
| CN206015693U (en) * | 2016-09-10 | 2017-03-15 | 武汉科技大学 | A kind of upper side slope friction pile |
| CN207159997U (en) * | 2017-07-28 | 2018-03-30 | 江苏华都建设有限公司 | A kind of prefabricated pile of grouting behind shaft or drift lining |
| CN110397059A (en) * | 2018-04-25 | 2019-11-01 | 上海城地建设股份有限公司 | A kind of compound tree root pile constructing process of preexisting hole stiffness |
| CN109137942A (en) * | 2018-11-09 | 2019-01-04 | 西安科技大学 | A kind of the expansive soil slope adaptive draining friction pile of deformation and construction method |
| CN111691438A (en) * | 2020-06-22 | 2020-09-22 | 河北工业大学 | Anti-skidding-drainage comprehensive treatment method for landslide of large-scale accumulation body |
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Application publication date: 20210226 |
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