CN113123358A - Ship pool deformation prevention structure under coal mining differential settlement effect and construction method - Google Patents

Ship pool deformation prevention structure under coal mining differential settlement effect and construction method Download PDF

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Publication number
CN113123358A
CN113123358A CN202110480576.2A CN202110480576A CN113123358A CN 113123358 A CN113123358 A CN 113123358A CN 202110480576 A CN202110480576 A CN 202110480576A CN 113123358 A CN113123358 A CN 113123358A
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China
Prior art keywords
ship pool
ship
side slope
pool
coal mining
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Granted
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CN202110480576.2A
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Chinese (zh)
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CN113123358B (en
Inventor
刘友春
谢斌
张游
徐国栋
孙新正
王君诺
刘士亮
樊培涛
张贞华
陈春
李维国
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Jining No3 Coal Mine Of Yanzhou Coal Industry Co ltd
Shandong Jining Nanyang Lake Farm Co ltd
Shuifa Planning And Construction Co ltd
Water Development Planning And Design Co ltd
Shandong University
Original Assignee
Jining No3 Coal Mine Of Yanzhou Coal Industry Co ltd
Shandong Jining Nanyang Lake Farm Co ltd
Shuifa Planning And Construction Co ltd
Water Development Planning And Design Co ltd
Shandong University
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Application filed by Jining No3 Coal Mine Of Yanzhou Coal Industry Co ltd, Shandong Jining Nanyang Lake Farm Co ltd, Shuifa Planning And Construction Co ltd, Water Development Planning And Design Co ltd, Shandong University filed Critical Jining No3 Coal Mine Of Yanzhou Coal Industry Co ltd
Priority to CN202110480576.2A priority Critical patent/CN113123358B/en
Publication of CN113123358A publication Critical patent/CN113123358A/en
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Publication of CN113123358B publication Critical patent/CN113123358B/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines
    • E02D17/205Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • E02D19/12Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/046Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/10Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/22Adaptations of pumping plants for lifting sewage
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0018Cement used as binder
    • E02D2300/002Concrete

Abstract

The invention discloses a deformation prevention structure of a ship pool under the action of coal mining differential settlement and a construction method, wherein the bottom of the ship pool sequentially comprises a rammed foundation, geotextile, a fine sand cushion layer and a check net gabion from bottom to top; the side slope main body is a cohesive soil layer, and a water interception curtain is fixedly arranged on one side of the side slope main body away from the bottom of the ship pool; the bank protection is including setting up reinforced concrete layer, chain building block layer and the soil nail in the side slope main part top. The bottom of the ship pool is designed into a semi-rigid structure, so that the engineering requirement can be met, and meanwhile, bottom cracks caused by uneven settlement are avoided. The ship pool side slope protection is of a rigid structure, a series of measures such as a soil nailing wall supporting structure, a reinforced concrete net and interlocking building blocks are adopted to guarantee the stability of the ship pool side slope in long-term operation, the rigid slope protection structure can enable the ship pool to keep synchronous stable sedimentation under the action of coal mining uneven sedimentation, and damages such as cracks, dislocation and collapse caused by uneven sedimentation are avoided.

Description

Ship pool deformation prevention structure under coal mining differential settlement effect and construction method
Technical Field
The invention relates to the technical field of a ship pool, in particular to a ship pool deformation prevention structure and a construction method under the action of coal mining differential settlement.
Background
In recent years, coal production is rapidly developed, and large-area mining causes the rock stratum at the upper part of a mined-out empty mine layer of an underground mine layer to lose support, the balance condition is destroyed, and then bending collapse is generated, so that the underground mine layer is developed to be sunken and deformed to form a coal mining subsidence. With the continuous development of surface subsidence, the comprehensive treatment work of the coal mining subsidence area is severely restricted. The continuous uneven ground surface settlement causes some fixed drainage facilities to be damaged in different degrees or even completely fail, and the development of industry and agriculture and the treatment work of collapse land are seriously restricted.
The conventional fixed pump station can be replaced by the floating ship pump station in the coal mining subsidence area, the problem of damage to the conventional fixed pump station caused by uneven settlement in the coal mining subsidence area is solved, flood disasters caused by damage to the pump station in the subsidence area before stable settlement are avoided, and good working performance of the pump station is maintained for a long time. The applicant finds that a ship pool matched with a pontoon pump station needs to be built in a coal mining subsidence area, uneven settlement of the ship pool can be caused by uneven settlement of a foundation before the coal mining subsidence area is stably sunk, and then cracks and dislocation of the ship pool can be caused until disasters such as bank break, collapse and the like occur, so that normal operation of the pontoon pump station is seriously threatened.
Disclosure of Invention
The invention aims to provide a deformation prevention structure of a ship pool under the action of coal mining differential settlement and a construction method, so as to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a deformation prevention structure of a ship pool under the action of coal mining differential settlement, which comprises:
the device comprises a ship pool bottom, wherein the ship pool bottom sequentially comprises a rammed foundation, geotextiles, a fine sand cushion layer and a check net gabion from bottom to top;
the side slope main body is a cohesive soil layer, and a water interception curtain is fixedly arranged on one side of the side slope main body, which is far away from the bottom of the ship pool;
the bank protection, the bank protection is including setting up reinforced concrete layer, chain building block layer and the soil nail in side slope main part top, reinforced concrete) layer includes the concrete and sets up the reinforcing bar net in the concrete inside, the inside a plurality of support hole of having seted up of side slope main part, the soil nail runs through chain building block layer and reinforced concrete layer in proper order and stretches into and strut downthehole portion, the soil nail and strut to fill between the hole and have the concrete.
Preferably, the thickness of the fine sand is 10-15cm, and the thickness of the check gabion is 40-60 cm.
Preferably, the thickness of the reinforced concrete layer is 70-100mm, and the specification of the concrete in the reinforced concrete is C20.
Preferably, the soil nail is a spiral soil nail, the outer side of the rod of the soil nail is fixedly provided with a spiral blade, and the spiral blade is matched with the supporting hole.
Preferably, the tops of the adjacent soil nails are connected through connecting steel bars.
Preferably, the outside of the revetment is provided with geotextile and reynolds net.
A construction method of a deformation prevention structure of a ship pool under the action of coal mining differential settlement is based on the deformation prevention structure of the ship pool under the action of coal mining differential settlement, and comprises the following steps:
step one, water interception treatment: performing curtain grouting construction around a ship pool planning field, and forming a water interception curtain around the ship pool field;
step two, excavation of a foundation pit: excavating a ship pool foundation pit in the water interception curtain;
step three, backfilling the side slope: backfilling the periphery of the bottom of the ship pool to form a side slope main body;
step four, supporting the side slope: forming a plurality of supporting holes on the side slope, fixedly arranging a steel bar mesh on the side slope main body, installing soil nails in the supporting holes, then pouring concrete in the installing holes, then spraying the concrete on the side slope main body, completely covering the steel bar mesh with the concrete, and then installing interlocking building blocks;
step five, treating the bottom of the ship pool: and after the bottom of the ship pool is tamped, laying geotextile, a fine sand cushion layer and a check gabion at the bottom of the ship pool.
Preferably, in the fourth step, when the soil nail is a spiral soil nail and concrete is poured into the supporting hole, the soil nail is rotated to fill the supporting hole with concrete, and the pressure in the supporting hole is greater than the pressure at the opening of the supporting hole.
The invention discloses the following technical effects: the bottom of the ship pool is designed into a semi-rigid structure, so that the engineering requirement can be met, and meanwhile, bottom cracks caused by uneven settlement are avoided. The ship pool side slope protection is of a rigid structure, a series of measures such as a soil nailing wall supporting structure, a reinforced concrete net and interlocking building blocks are adopted to guarantee the stability of the ship pool side slope in long-term operation, the rigid slope protection structure can enable the ship pool to keep synchronous stable sedimentation under the action of coal mining uneven sedimentation, and damages such as cracks, dislocation and collapse caused by uneven sedimentation are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a structural diagram of deformation prevention and control of a ship pool under the action of coal mining differential settlement;
FIG. 2 is a schematic view of the soil nail structure of the present invention;
FIG. 3 is a schematic view of the structure of the soil nails of the second embodiment.
Wherein: 1. the ship comprises a ship bottom, 2, a side slope main body, 3, a revetment, 201, soil nails, 202, a reinforcing mesh, 203, concrete, 204, interlocking blocks, 205, supporting holes, 301 and a water interception curtain.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
Referring to fig. 1-2, the present embodiment provides a deformation prevention structure for a pool under the action of coal mining differential settlement, including:
the device comprises a ship pool bottom 1, wherein the ship pool bottom 1 sequentially comprises a rammed foundation, geotextile, a fine sand cushion layer and a check net gabion from bottom to top; the thickness of the fine sand is 10-15cm, the thickness of the check-up gabion is 40-60cm, the geotextile and the fine sand play a role in isolation, the geotextile and the fine sand are used for isolating the foundation and the check-up gabion, the check-up gabion is prevented from damaging the foundation, the integral structure and the function of the bottom of the ship pool are maintained, and the bearing capacity of a structure is enhanced; meanwhile, water can be filtered, when water flows into the geotextile and the fine sand layer from the foundation, the good air permeability and water permeability of the geotextile are utilized to enable water flow to pass through, so that soil particles, fine sand, small stones and the like are effectively intercepted, the stability of water and soil engineering is kept, the geotextile has good water guiding performance, a drainage channel can be formed in a soil body, and redundant liquid and gas in the soil body structure are discharged; the geotextile strengthens the tensile strength and the anti-deformation capacity of the bottom of the ship pool, strengthens the stability of the slope protection Reynolds protection pad structure so as to improve the quality of a soil body, effectively diffuses, transmits or decomposes concentrated stress when water flows wash the soil body, prevents the soil body from being damaged by external force, and protects the soil. The bottom of the ship pool is designed to be a semi-rigid structure, so that the engineering requirement can be met, and meanwhile, bottom cracks caused by uneven settlement are avoided.
The side slope main body 2 is a cohesive soil layer, and a water interception curtain 301 is fixedly arranged on one side of the side slope main body 2 away from the bottom 1 of the ship pool; the main body of the side slope of the ship pool is backfilled by clay, and the backfilling gradient is calculated and determined according to the stability of the side slope, so that the seepage resistance and the stability of the side slope of the ship pool in long-term operation can be guaranteed. Before the ship pool is excavated, the foundation is cut off, curtain grouting construction is carried out around the ship pool site to be built, the water leakage and collapse of a foundation pit in the excavation construction can be avoided, and the safety of the construction period and the operation period is improved.
Bank protection 3, bank protection 3 is including setting up the reinforced concrete layer in side slope main part 2 top, chain block layer 204 and soil nail 201, and reinforced concrete 203 layer includes concrete 203 and sets up at the inside reinforcing bar net 202 of concrete 203, and hole 205 is strutted to a plurality of has been seted up to side slope main part 2 inside, and soil nail 201 runs through chain block layer 204 and reinforced concrete layer in proper order and stretches into inside strutting hole 205, and soil nail 201 and strut and fill between the hole 205 and have the concrete. The tops of the adjacent soil nails 201 are connected through connecting steel bars, so that the connection performance and integrity between the soil nails are improved. The thickness of the reinforced concrete layer is 70-100mm, the specification of the concrete 203 in the reinforced concrete is C20, although the compression resistance of the concrete is not large, the concrete has good air permeability, and water can pass through the concrete on the side slope main body 2 in the ship pool; the ship pool side slope protection is of a rigid structure, a series of measures such as a soil nailing wall supporting structure, a reinforced concrete net and interlocking building blocks are adopted to guarantee the stability of the ship pool side slope in long-term operation, the rigid slope protection structure can enable the ship pool to keep synchronous stable sedimentation under the action of coal mining uneven sedimentation, and damages such as cracks, dislocation and collapse caused by uneven sedimentation are avoided.
A construction method of a deformation prevention structure of a ship pool under the action of coal mining differential settlement is based on the deformation prevention structure of the ship pool under the action of coal mining differential settlement, and comprises the following steps:
step one, water interception treatment: performing curtain grouting construction around a ship pool field to be built, and forming a water interception curtain 301 around the ship pool field; carrying out water interception treatment on the foundation to prevent the underground water level from being too high and flowing back to the foundation pit;
step two, excavation of a foundation pit: excavating a ship pool foundation pit in the water interception curtain 301; and excavating the foundation pit of the ship pool by using an excavating machine in a large excavation mode, wherein the excavation size is suitable for meeting the installation and operation requirements of the floating pontoon.
Step three, backfilling the side slope: backfilling the periphery of the bottom 1 of the ship pool to form a side slope main body 2; and calculating and determining the slope of the backfill side slope according to the stability of the side slope.
Step four, supporting the side slope: forming a plurality of supporting holes 205 on the side slope, fixedly arranging a reinforcing mesh 202 on the side slope main body 2, installing soil nails 201 in the supporting holes 205, then pouring concrete 203 in the installing holes, then spraying the concrete 203 on the side slope main body 2, completely covering the reinforcing mesh 202 by the concrete 203, and then installing interlocking blocks; the outside of slope protection 3 is provided with geotechnological cloth and reynolds net and carries out the slope reinforcement.
Step five, treating the bottom of the ship pool 1: after the ship pool bottom 1 is tamped, geotextile, a fine sand cushion layer and a check gabion are laid on the ship pool bottom 1.
Example 2
Referring to fig. 3, the present embodiment differs from embodiment 1 only in that: the soil nail 201 is a spiral soil nail 201, the soil nail 201 is fixedly provided with a helical blade on the outer side of the rod, the helical blade is matched with the supporting hole 205, namely the outer edge of the helical blade is in contact with the supporting hole 205, the contact area of the soil nail 201 and concrete is increased through the helical blade, and the supporting capacity of the soil nail is improved.
In the fourth step of the construction method of the deformation prevention structure of the ship pool under the action of coal mining uneven settlement, when the soil nail 201 is a spiral soil nail 201 and concrete is poured into the supporting hole 205, the concrete nail 201 is rotated to enable the supporting hole 205 to be filled with the concrete, so that the supporting hole 205 is enabled to be filled with the concrete, and meanwhile, as the spiral blade is matched with the supporting hole, the pressure in the supporting hole is enabled to be larger than the pressure at an inlet through rotating the soil nail 201, the concrete is enabled to permeate into the side slope main body 2, and the supporting capability of the soil nail and the concrete on the side slope main body 2 is improved.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (8)

1. The utility model provides a hull pool deformation prevention and control structure under coal mining differential settlement effect which characterized in that: the method comprises the following steps:
the device comprises a ship pool bottom (1), wherein the ship pool bottom (1) sequentially comprises a rammed foundation, geotextile, a fine sand cushion layer and a check net gabion from bottom to top;
the side slope main body (2) is a cohesive soil layer, and a water intercepting curtain (301) is fixedly arranged on one side, away from the bottom (1) of the ship pool, of the side slope main body (2);
slope protection (3), slope protection (3) are including setting up reinforced concrete layer, chain building block layer (204) and soil nail (201) in side slope main part (2) top, reinforced concrete (203) layer includes concrete (203) and sets up reinforcing bar net (202) inside concrete (203), a plurality of support hole (205) have been seted up to side slope main part (2) inside, soil nail (201) run through chain building block layer (204) in proper order and reinforced concrete layer stretch into support hole (205) inside, it has the concrete to fill between soil nail (201) and the support hole (205).
2. The structure for preventing deformation of the ship pool under the action of coal mining differential settlement according to claim 1, wherein: the thickness of the fine sand is 10-15cm, and the thickness of the check gabion is 40-60 cm.
3. The structure for preventing deformation of the ship pool under the action of coal mining differential settlement according to claim 1, wherein: the thickness of the reinforced concrete layer is 70-100mm, and the specification of concrete (203) in the reinforced concrete is C20.
4. The structure for preventing deformation of the ship pool under the action of coal mining differential settlement according to claim 1, wherein: soil nail (201) are spiral soil nail (201), soil nail (201) are provided with helical blade in the outside of pole is fixed, helical blade and support hole (205) looks adaptation.
5. The structure for preventing deformation of the ship pool under the action of coal mining differential settlement according to claim 1, wherein: the tops of the adjacent soil nails (201) are connected through connecting steel bars.
6. The structure for preventing deformation of the ship pool under the action of coal mining differential settlement according to claim 1, wherein: and the outer side of the revetment (3) is provided with geotextile and a Reynolds net.
7. A construction method of a deformation prevention structure of a ship pool under the action of coal mining differential settlement is based on the deformation prevention structure of the ship pool under the action of coal mining differential settlement, which is characterized in that: the method comprises the following steps:
step one, water interception treatment: performing curtain grouting construction around the ship pool planning field, and forming a water interception curtain (301) around the ship pool field;
step two, excavation of a foundation pit: excavating a foundation pit of the ship pool in the water interception curtain (301);
step three, backfilling the side slope: backfilling the periphery of the bottom (1) of the ship pool to form a side slope main body (2);
step four, supporting the side slope: the method comprises the following steps of (1) forming a plurality of supporting holes (205) in a side slope, fixedly arranging a reinforcing mesh (202) on a side slope main body (2), installing soil nails (201) in the supporting holes (205), then pouring concrete (203) in the installing holes, then spraying the concrete (203) on the side slope main body (2), completely covering the reinforcing mesh (202) with the concrete (203), and then installing interlocking building blocks;
step five, treating the bottom of the ship pool (1): after the ship pool bottom (1) is tamped, geotextile, a fine sand cushion layer and a check net gabion are laid on the ship pool bottom (1).
8. The structure for preventing deformation of the pool under the action of coal mining differential settlement according to claim 7, wherein: in the fourth step, when the soil nail (201) is a spiral soil nail (201) and concrete (203) is poured into the supporting hole (205), the soil nail (201) is rotated to fill the supporting hole (205) with the concrete (203).
CN202110480576.2A 2021-04-30 2021-04-30 Ship pool deformation prevention and control structure under action of uneven settlement of coal mining and construction method Active CN113123358B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114635438A (en) * 2022-03-30 2022-06-17 山东建筑大学 Ecological retaining wall based on self-locking expansion effect and construction method thereof

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CN102051881A (en) * 2010-11-02 2011-05-11 孙涛 Flexible surface layer soil nailing wall support system and construction method thereof
CN102635119A (en) * 2012-04-24 2012-08-15 天津二十冶建设有限公司 Supporting method for construction of swirl well
CN107237332A (en) * 2017-06-15 2017-10-10 上海二十冶建设有限公司 A kind of foundation pit stope support containing drifting sand layer method of use composite soil-nailed retaining wall
CN206635780U (en) * 2017-01-22 2017-11-14 北京东地岩土工程有限公司 A kind of soil nailed wall retaining structure
CN108442404A (en) * 2018-05-07 2018-08-24 宁波大学 Assembled composite ecotype retaining wall and its construction method
CN111764214A (en) * 2020-07-15 2020-10-13 湖南省交建工程集团有限公司 Three-dimensional reinforcement treatment construction method for soft soil roadbed geotechnical synthetic material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102051881A (en) * 2010-11-02 2011-05-11 孙涛 Flexible surface layer soil nailing wall support system and construction method thereof
CN102635119A (en) * 2012-04-24 2012-08-15 天津二十冶建设有限公司 Supporting method for construction of swirl well
CN206635780U (en) * 2017-01-22 2017-11-14 北京东地岩土工程有限公司 A kind of soil nailed wall retaining structure
CN107237332A (en) * 2017-06-15 2017-10-10 上海二十冶建设有限公司 A kind of foundation pit stope support containing drifting sand layer method of use composite soil-nailed retaining wall
CN108442404A (en) * 2018-05-07 2018-08-24 宁波大学 Assembled composite ecotype retaining wall and its construction method
CN111764214A (en) * 2020-07-15 2020-10-13 湖南省交建工程集团有限公司 Three-dimensional reinforcement treatment construction method for soft soil roadbed geotechnical synthetic material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114635438A (en) * 2022-03-30 2022-06-17 山东建筑大学 Ecological retaining wall based on self-locking expansion effect and construction method thereof

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