CN113216246B - Water-immersed retaining wall and construction method thereof - Google Patents
Water-immersed retaining wall and construction method thereof Download PDFInfo
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- CN113216246B CN113216246B CN202110429034.2A CN202110429034A CN113216246B CN 113216246 B CN113216246 B CN 113216246B CN 202110429034 A CN202110429034 A CN 202110429034A CN 113216246 B CN113216246 B CN 113216246B
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- 238000010276 construction Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000004575 stone Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
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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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
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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
- E02D17/18—Making embankments, e.g. dikes, dams
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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
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
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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
Abstract
The invention provides a submerged retaining wall, which comprises a wall back drainage system and a foundation surface drainage system; the wall back drainage system comprises a medium coarse sand layer and a wall body drainage hole which are arranged on the back surface of the retaining wall; the foundation surface drainage system is arranged at the bottom of the retaining wall and close to the upstream side of the retaining wall, and comprises a longitudinal drainage pipe, a transverse drainage pipe and a foundation drainage hole which are mutually communicated; the wall of the longitudinal drain pipe is permeable to water and extends from one end of the retaining wall to the other end; the base drain holes are distributed in the base surface at intervals along the drainage channel; the two ports of the horizontal drainage pipe and the wall body drainage hole respectively face to the upstream side and the downstream side and penetrate through the retaining wall. This retaining wall stable in structure, the size is less is favorable to the construction, is particularly useful for the water level change district. Meanwhile, the invention also provides a method for constructing the retaining wall.
Description
Technical Field
The invention relates to a retaining wall structure and a construction method thereof, which are particularly suitable for retaining wall engineering built in a water level fluctuation area.
Background
The retaining wall is a structure for supporting foundation fill or a slope body and preventing deformation and instability of the fill or the slope body, and is widely used in engineering construction or prevention and control of geological disasters. For the retaining wall built in the water level change area, in order to offset the water pressure effect from the wall back and the base, the large size is often needed, the investment of the project is increased, and even the whole scheme is not feasible. According to incomplete statistics, over 80% of retaining wall damage has a direct relationship with the action of water, so the drainage design of the retaining wall is of great importance. For the retaining wall with the main structure located in the water level change area, not only the drainage of the wall back but also the drainage of the foundation should be considered, and meanwhile, the reliability of the drainage should be ensured. In the prior art, the water drainage holes are usually only arranged on the retaining wall to drain water in the slope body, so that the stability of the slope body is improved. Obviously, this approach does not meet the requirements of the present technical problem.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a retaining wall structure which can be effectively applied to a water level change area, and has the advantages of small size and low construction cost.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a soaking retaining wall comprises a wall back drainage system and a foundation surface drainage system; the wall back drainage system comprises wall body drainage holes arranged in the wall body of the retaining wall; the foundation surface drainage system is arranged at the bottom of the retaining wall and close to the upstream side of the retaining wall, and comprises a longitudinal drainage pipe, a transverse drainage pipe and a foundation drainage hole which are mutually communicated; the wall of the longitudinal drain pipe is permeable and extends from one end of the retaining wall to the other end; the basic drain holes are distributed in the basic surface at intervals; the transverse drainage pipe and the wall body drainage hole penetrate through the retaining wall, and two ports face to the upstream side and the downstream side respectively.
Further, the longitudinal drain pipes are arranged in the longitudinal drain channels, and the basic drain holes are distributed along the longitudinal drain channels.
Furthermore, the space of the longitudinal drainage channel is enclosed by the [ shape channel steel and the base surface.
Furthermore, the edge of the channel steel is provided with a notch for a transverse drain pipe to pass through; and a gap between the channel steel and the foundation surface is provided with a concrete plug.
Further, the port of the lateral drain pipe toward the downstream side extends outside the retaining wall and is submerged below the lowest water level of the body area.
Furthermore, a water-permeable perforated pipe of the drain hole is vertically inserted into the orifice of the base drain hole, and mortar plugging is arranged between the pipe wall of the water-permeable perforated pipe of the drain hole and the gap of the orifice of the base drain hole; the basic drain hole is communicated with the transverse drain pipe and the longitudinal drain pipe through the drain hole water-permeable perforated pipe.
Furthermore, the upstream side ports of the wall body drain hole and the transverse drain pipe are respectively provided with a permeable cover plate.
Further, the wall back backfilling area of the retaining wall comprises a medium coarse sand layer and soil-rock slag rolling backfilling arranged on the surface of the wall back of the retaining wall; and the bottom of the wall back backfilling area is provided with a crushed stone drainage area with the same particle size, a transition layer and an inverted filter layer which are sequentially filled from bottom to top.
Furthermore, the wall body drainage holes are obliquely arranged towards the downstream side, and the transverse drainage pipe is horizontally arranged.
The invention also provides a construction method of the retaining wall, which comprises the following steps:
step A: excavating a retaining wall foundation;
and B: determining the central line of a longitudinal drainage channel, drilling holes at intervals to form a plurality of basic drainage holes, embedding a drainage hole water-permeable floral tube after cleaning the holes, and blocking the wall of the tube and the wall of the hole by adopting mortar;
step C: laying a longitudinal drain pipe and a transverse drain pipe along the central line of the longitudinal drain channel, and connecting the longitudinal drain pipe, the transverse drain pipe and the drain hole water-permeable floral tube through a four-way pipe fitting and a three-way pipe fitting;
step D: according to the distance between the transverse drain pipes, notches at the edges of the [ type channel steel are arranged, the inverted channel steel and the foundation surface form a longitudinal drain channel, and concrete is adopted to block a gap between the channel steel and the foundation surface;
and E, step E: erecting a film and pouring a concrete retaining wall body, and embedding a wall body drain hole in advance;
step F: arranging a water permeable cover plate at the upstream side port of the transverse drain pipe and the wall body drain hole;
step G: sequentially backfilling a gravel drainage area with the same particle size, a transition layer and a reversed filtering layer on a back base of the retaining wall;
step H: and backfilling the wall back of the retaining wall, arranging a medium coarse sand layer close to the wall back, and backfilling common soil and stone residues in other areas.
The invention has the beneficial effects that: this technical scheme is through arranging wall body drainage system and foundation surface drainage system in retaining wall, realizes the dual drainage of retaining wall back of the body and basement, can effectively reduce the water pressure of retaining wall upper reaches side, reduces the power of toppling of retaining wall foundation surface and the power of toppling of wall back of the body to improve the stability of retaining wall, the variability of the retaining wall atress condition when adapting to the water level variation. In addition, the middle coarse sand layer is arranged on the wall back of the retaining wall, so that the drainage capability of the retaining wall can be improved in an auxiliary manner, and the water level line of the wall back part is reduced to reduce the overturning force of the wall back; meanwhile, the foundation surface drainage system is arranged close to the upstream side of the retaining wall, so that the water pressure of the upstream side of the foundation surface can be further reduced, and the overturning force of the foundation surface is reduced.
In addition, the downstream side port of the transverse drain pipe is immersed below the lowest water level of the water body area, when the water level is reduced to be below the elevation of the foundation surface, negative pressure is formed by the reverse siphoning effect of the water column in the hole, and then the drainage efficiency of the foundation surface and the pressure reduction effect are improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of a foundation face drainage system of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Reference is made to the accompanying drawings. The retaining wall structure of the present embodiment includes a wall back drainage system and a foundation surface drainage system. Wherein, the wall back drainage system comprises a medium coarse sand layer 13 and a wall body drainage hole 9. The wall body drain holes 9 are distributed in plural along the length direction and the height direction of the retaining wall 2 and penetrate the retaining wall 2. Each drainage hole is inclined downward toward the downstream side of the retaining wall 2, that is, the orifice height of each drainage hole toward the upstream side is larger than the orifice height toward the downstream side. In this embodiment, the downstream side of the retaining wall refers to the side of the water level fluctuation area, and the upstream side of the retaining wall refers to the other side of the water level fluctuation area. The port of the drain hole facing the upstream side is also provided with a cover plate 14 for preventing debris such as sand and gravel from entering the drain hole along with the water flow and causing blockage. The medium coarse sand layer 13 is laid on the surface of the wall back of the retaining wall 2, the drainage capacity of the retaining wall 2 is improved in an auxiliary mode, and the water level line of the wall back is reduced to reduce the overturning force of the wall back.
The foundation surface drainage system is arranged at the bottom of the retaining wall 2 and close to the upstream side of the retaining wall 2, and comprises a longitudinal drain pipe 7, a transverse drain pipe 8 and a foundation drainage hole 5 which are mutually communicated. The longitudinal drain pipe 7 is arranged in the longitudinal drain channel 4 to prevent impurities from entering the drain pipe to block the drain pipe, so that the foundation surface drainage system is paralyzed. Specifically, the longitudinal drainage channels 4 extend from one end to the other end of the retaining wall 2 and are arranged on the upstream side of the centroid of the interface of the retaining wall 2, and when the foundation face 1 of the retaining wall 2 is wide, multiple rows may be arranged. In the present embodiment, the longitudinal drainage channels 4 are provided along the length direction of the retaining wall 2. The longitudinal drainage channel 4 is reversely buckled on the base surface 1 by adopting a [ shape channel steel 15 ] to form a channel space, and the longitudinal drainage pipe 7 is a water-permeable perforated pipe and is arranged along the central line of the longitudinal drainage channel 4.
The foundation drain holes 5 are arranged in the foundation surface 1 and distributed at intervals along the longitudinal drain pipes 7, the hole depth is 3-5 m, the drain hole water-permeable perforated pipes 6 are vertically inserted at the hole openings, and mortar plugging is arranged between the pipe walls of the drain hole water-permeable perforated pipes 6 and the hole openings of the foundation drain holes 5. In the embodiment, the base drain hole 5 and the longitudinal drain pipe 7 are distributed along the central line of the longitudinal drain pipe 7, and the drain hole water-permeable floral pipe 6 and the longitudinal drain pipe 7 are connected through a tee pipe.
The horizontal drainage pipes 8 are horizontally buried in the upstream and downstream directions of the retaining wall 2 and penetrate the entire retaining wall foundation. The transverse drain pipes 8 are positioned between two adjacent basic drain holes 5 and are arranged at intervals, and are connected with the longitudinal drain pipes 7 by adopting a four-way pipe fitting. Because the transverse drain pipe 8 needs to be connected with the longitudinal drain pipe 7 in the longitudinal drain channel 4, the edges of two sides of the channel steel 15 are provided with notches for the transverse drain pipe 8 to pass through, and a gap between the channel steel 15 and the foundation surface 1 is blocked by concrete so as to prevent grout from blocking the drain channel in the channel steel 15 when the concrete of the earth wall 2 is poured. Specifically, the end of the lateral drain pipe 8 facing the downstream side extends out of the retaining wall 2 and is submerged below the lowest water level in the water body region, so that when the water level is lowered below the height of the foundation surface 1, the reverse siphon action of the water column in the hole forms a negative pressure, thereby improving the drainage efficiency and the pressure reduction effect of the foundation surface 1. The upstream side port of the transverse drain pipe 8 is also provided with a cover plate 14, and the cover plate 14 is a circular arc dense-hole steel plate.
The bottom of a wall back backfill area of the retaining wall 2 is provided with an equal-particle-size gravel drainage area 10, and the upper part of the equal-particle-size gravel drainage area 10 is sequentially filled with a transition layer 11 and an inverted filter layer 12. And common earth and stone slag 3 is adopted to roll and backfill the wall back backfill areas at the rear side of the coarse sand layer 13 and the upper part of the inverted filter layer 12 in the wall back of the retaining wall 2, so that the integral stability of the retaining wall 2 is improved.
The specific construction method of the embodiment is as follows:
(1) Excavating a retaining wall foundation;
(2) Determining the central line of a longitudinal drainage channel 4, drilling holes at certain intervals along the central line to form a plurality of basic drainage holes 5, embedding drainage hole water-permeable floral tubes 6 after cleaning in the holes, and blocking the wall of each hole by adopting mortar;
(3) Laying a longitudinal drain pipe 7 and a transverse drain pipe 8 along the central line of the longitudinal drain channel 4, and connecting the longitudinal drain pipe 7, the transverse drain pipe 8 and the drain hole water-permeable perforated pipe 6 through a four-way pipe and a three-way pipe;
(4) Gaps at the edges of the channel steels 15 are arranged according to the distance between the transverse drain pipes 8, longitudinal drain channels 4 are formed by reversely buckling the channel steels 15 and the foundation surface 1, and gaps between the channel steels 15 and the foundation surface 1 are blocked by concrete;
(5) Erecting a film and pouring a concrete retaining wall body, and embedding a wall body drain hole 9 in advance;
(6) A cover plate 14 is arranged at the upstream side port of the transverse drain pipe 8 and the wall body drain hole 9;
(7) Sequentially backfilling a gravel drainage area 10 with equal grain diameter, a transition layer 11 and a reverse filtering layer 12 on the wall back base of the retaining wall 2;
(8) And backfilling the back of the retaining wall 2, arranging a medium coarse sand layer 13 close to the back of the wall, and backfilling common soil and stone residues 3 in other areas.
The retaining wall of the technical scheme is stable in structure and small in size, the construction method is also favorable for reducing the construction cost and simplifying the construction method, and good economic benefits are achieved.
It should be noted that the above describes exemplifying embodiments of the invention. However, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the scope of the invention, which is defined by the appended claims.
Claims (6)
1. A kind of soaking retaining wall, characterized by that including wall drainage system and basic surface drainage system; the wall body drainage system comprises a wall body drainage hole arranged in the wall body of the retaining wall; the foundation surface drainage system is arranged at the bottom of the retaining wall and close to the upstream side of the retaining wall, and comprises a longitudinal drainage pipe, a transverse drainage pipe and a foundation drainage hole which are mutually communicated; the wall of the longitudinal drainage pipe is permeable to water and extends from one end to the other end of the retaining wall; the basic drainage holes are distributed in the basic surface at intervals; the transverse drain pipe and the wall body drain hole penetrate through the retaining wall, and two ports of the transverse drain pipe and the wall body drain hole face to the upstream side and the downstream side respectively;
the wall back backfilling area of the retaining wall comprises a medium coarse sand layer and earth and stone slag rolling backfilling, wherein the medium coarse sand layer and the earth and stone slag rolling backfilling are arranged on the surface of the wall back of the retaining wall; the bottom of the wall back backfilling area is provided with a crushed stone drainage area with the same particle size, a transition layer and an inverted filter layer which are sequentially filled from bottom to top; the upstream end of the transverse drain pipe is connected to the crushed stone drainage area with the same particle size; the downstream side port of the transverse drain pipe is immersed below the lowest water level of the water body area, and when the water level is reduced to be below the elevation of the foundation surface, negative pressure is formed under the reverse siphoning effect of the water column in the hole, so that the drainage efficiency of the foundation surface and the pressure reduction effect are improved;
the longitudinal drain pipe is arranged in the longitudinal drain channel, and the basic drain holes are distributed along the longitudinal drain channel; the space of the longitudinal drainage channel is enclosed by the [ type channel steel and the foundation surface.
2. A submerged retaining wall as claimed in claim 1, wherein the edges of said channel are notched to allow said transverse drainage pipes to pass through; and concrete plugging is arranged in a gap between the channel steel and the foundation surface.
3. The submerged retaining wall as claimed in claim 1, wherein a water-permeable perforated pipe for the drainage hole is vertically inserted into the opening of the drainage hole of the foundation, and a mortar block is arranged between the wall of the water-permeable perforated pipe for the drainage hole and the opening of the foundation drainage hole; the base drain hole is communicated with the transverse drain pipe and the longitudinal drain pipe through the drain hole water-permeable perforated pipe.
4. The submerged retaining wall according to claim 1, characterized in that the upstream side ports of the wall body drain holes and the transverse drain pipes are provided with water permeable cover plates.
5. A submerged retaining wall according to claim 1, wherein the wall body drainage holes are formed to be inclined toward the downstream side, and the lateral drainage pipes are horizontally formed.
6. A construction method of a submerged retaining wall according to any of claims 1 to 5, characterized by the steps of:
step A: excavating a retaining wall foundation;
and B: determining the central line of a longitudinal drainage channel, drilling holes at intervals to form a plurality of basic drainage holes, embedding drainage hole water-permeable floral tubes after cleaning the holes, and blocking the wall of each hole and the wall of each hole by adopting mortar;
and C: laying the longitudinal drain pipe and the transverse drain pipe along the central line of the longitudinal drain channel, and connecting the longitudinal drain pipe, the transverse drain pipe and the drain hole water-permeable floral tube through a four-way pipe and a three-way pipe;
step D: according to the distance between the transverse drain pipes, notches at the edges of the [ type channel steel are arranged, the inverted channel steel and the foundation surface form a longitudinal drain channel, and concrete is adopted to block a gap between the channel steel and the foundation surface;
step E: the vertical film is poured with the concrete retaining wall body, and the drain hole of the wall body is pre-buried;
step F: arranging a permeable cover plate at the upstream side ports of the transverse drain pipe and the wall body drain hole;
g: sequentially backfilling a gravel drainage area with the same particle size, a transition layer and a reversed filtering layer on the back base of the retaining wall;
step H: and backfilling the wall back of the retaining wall, arranging a medium coarse sand layer close to the wall back, and backfilling common soil and stone residues in other areas.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429034.2A CN113216246B (en) | 2021-04-21 | 2021-04-21 | Water-immersed retaining wall and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429034.2A CN113216246B (en) | 2021-04-21 | 2021-04-21 | Water-immersed retaining wall and construction method thereof |
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| Publication Number | Publication Date |
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| CN113216246A CN113216246A (en) | 2021-08-06 |
| CN113216246B true CN113216246B (en) | 2023-02-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110359430A (en) * | 2019-07-30 | 2019-10-22 | 中国电建集团成都勘测设计研究院有限公司 | A kind of Gravity Dam Foundation discharge structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201981551U (en) * | 2010-12-09 | 2011-09-21 | 上海勘测设计研究院 | Supporting and retaining structure by combining iron-rib ecological retaining wall with concrete retaining wall |
| CN106368238A (en) * | 2016-11-01 | 2017-02-01 | 西北大学 | Honeycomb geocell earth retaining wall with ecological restoration function and construction method thereof |
| CN207959131U (en) * | 2018-03-13 | 2018-10-12 | 中水北方勘测设计研究有限责任公司 | A kind of gallery arrangement of RCC dam |
| CN109252543A (en) * | 2018-11-23 | 2019-01-22 | 湖南山水道生态文化发展有限公司 | The retaining wall structure of ground is built on slope |
| CN109629582A (en) * | 2019-01-16 | 2019-04-16 | 河南省交通规划设计研究院股份有限公司 | A kind of abnormity draining friction pile and its construction method |
-
2021
- 2021-04-21 CN CN202110429034.2A patent/CN113216246B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201981551U (en) * | 2010-12-09 | 2011-09-21 | 上海勘测设计研究院 | Supporting and retaining structure by combining iron-rib ecological retaining wall with concrete retaining wall |
| CN106368238A (en) * | 2016-11-01 | 2017-02-01 | 西北大学 | Honeycomb geocell earth retaining wall with ecological restoration function and construction method thereof |
| CN207959131U (en) * | 2018-03-13 | 2018-10-12 | 中水北方勘测设计研究有限责任公司 | A kind of gallery arrangement of RCC dam |
| CN109252543A (en) * | 2018-11-23 | 2019-01-22 | 湖南山水道生态文化发展有限公司 | The retaining wall structure of ground is built on slope |
| CN109629582A (en) * | 2019-01-16 | 2019-04-16 | 河南省交通规划设计研究院股份有限公司 | A kind of abnormity draining friction pile and its construction method |
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