CN116607562A - Grouting sheet stone retaining wall body grouting reinforcement structure and construction method thereof - Google Patents
Grouting sheet stone retaining wall body grouting reinforcement structure and construction method thereof Download PDFInfo
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- CN116607562A CN116607562A CN202310828491.8A CN202310828491A CN116607562A CN 116607562 A CN116607562 A CN 116607562A CN 202310828491 A CN202310828491 A CN 202310828491A CN 116607562 A CN116607562 A CN 116607562A
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- concrete
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- 239000004575 stone Substances 0.000 title claims abstract description 23
- 230000002787 reinforcement Effects 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 53
- 239000010959 steel Substances 0.000 claims description 53
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000011083 cement mortar Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000011087 paperboard Substances 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000011150 reinforced concrete Substances 0.000 description 11
- 239000002689 soil Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 2
- 238000007613 slurry method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- E02D29/0208—Gabions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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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
- E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
-
- 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
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0283—Retaining or protecting walls characterised by constructional features of mixed type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Retaining Walls (AREA)
Abstract
A grouting reinforcement structure of a grouting sheet stone retaining wall body and a construction method thereof comprise a grouting machine and a plurality of retaining wall bodies arranged in rows, wherein original water leakage holes are formed in the retaining wall bodies; the exposed surface of the retaining wall body is provided with a concrete protecting surface, and an extension water drain hole communicated with the original water drain hole is formed in the concrete protecting surface; the concrete facing is also provided with a plurality of hollow self-advancing anchor rods inserted in the retaining wall body, and the grouting machine is provided with grouting pipes communicated with the hollow self-advancing anchor rods; compared with the prior art, the retaining wall body with poor conditions is reinforced, when the technology is used for embankment/road shoulder walls, the road sealing treatment can be omitted, the traffic can still be ensured, traffic jams and related economic and social problems caused by the traffic jams are avoided, meanwhile, filling grouting is carried out on the original retaining wall body under the grouting effect, and the overall strength of the retaining wall body is improved.
Description
Technical Field
The invention relates to the technical field of retaining wall repair, in particular to a grouting reinforcement structure for a grouting sheet stone retaining wall body and a construction method thereof.
Background
The retaining wall can play a role in stabilizing the side slope, effectively avoid the problem of deformation instability of soil body, and can prevent and treat roadbed diseases such as landslide, and is an important means for ensuring road safety in road construction.
The slurry-built retaining wall is formed by building stones such as rubble, block stone, rubble and flint through mortar by a seat slurry method or a squeeze slurry method and is used for supporting structures of roadbed filling soil and hillside soil, and preventing deformation and instability of the filling soil or the soil.
Chinese patent No. CN216379627U discloses a reinforced mortar masonry retaining wall structure, including mortar masonry retaining wall, inside fixed grafting of mortar masonry retaining wall has reinforced concrete hole-making dado, reinforced concrete hole-making dado inside is provided with reinforced concrete bored concrete pile, reinforced concrete hole-making dado top is provided with reinforced concrete crown beam, reinforced concrete crown beam one end fixedly connected with pavement waft platform, reinforced concrete hole-making dado lateral wall and be provided with reinforced concrete dado near pavement waft platform one side, be provided with supporting mechanism between reinforced concrete dado and the pavement waft platform.
The reinforcement of the masonry retaining wall structure is achieved by excavating the original masonry retaining wall and secondarily reinforcing the original masonry retaining wall in the form of reinforced concrete cast-in-place piles, the overall structure is complex, the corresponding reinforced concrete cast-in-place piles are required to be designed according to the original masonry retaining wall structure, time and labor are wasted, the repairing steps are locked, the construction time is long, and the influence on the surrounding living environment is large.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a grouting reinforcement structure of a grouting sheet stone retaining wall body and a construction method thereof, wherein the grouting reinforcement structure is simple to operate, convenient to construct and high in applicability.
In order to achieve the above object, the present invention adopts the following technical scheme: the grouting reinforcement structure comprises a grouting machine and a plurality of retaining wall bodies arranged in rows, wherein original water drainage holes are formed in the retaining wall bodies; the exposed surface of the retaining wall body is provided with a concrete protecting surface, and an extension water drain hole communicated with the original water drain hole is formed in the concrete protecting surface; the concrete facing is also provided with a plurality of hollow self-advancing anchor rods inserted in the retaining wall body, and the grouting machine is provided with grouting pipes communicated with the hollow self-advancing anchor rods.
As a preferable scheme of the invention, the bottom of the retaining wall body is provided with a retaining wall foundation for supporting the retaining wall body, and a settlement joint is formed between adjacent retaining walls.
As a preferable scheme of the invention, a plurality of hollow self-advancing anchor rods are arranged on the concrete facing in a quincuncial shape.
As a preferable scheme of the invention, the concrete guard surface is internally provided with a reinforcing steel bar net which is abutted against the retaining wall body, and the reinforcing steel bar net is provided with hanging reinforcing steel bars for hanging the reinforcing steel bar net on the retaining wall body.
As a preferable scheme of the invention, the concrete facing is built or sprayed on the surface of the reinforcing mesh.
As a preferable scheme of the invention, the hollow self-advancing anchor rod is obliquely arranged downwards along the inward direction of the retaining wall body.
As a preferable scheme of the invention, the bottom of the retaining wall body is provided with an observation hole for observing grouting effect.
As a preferable scheme of the invention, the concrete facing is provided with the anchor sealing assembly corresponding to the hollow self-advancing anchor rod, and the anchor sealing assembly comprises a nut arranged at the end part of the hollow self-advancing anchor rod and concrete poured outside the nut.
As a preferable scheme of the invention, the anchor sealing assembly further comprises a steel backing plate abutted with the concrete facing and a wedge-shaped steel backing plate abutted with the steel backing plate, and the nut is abutted on the wedge-shaped steel backing plate.
The construction method of the grouting reinforcement structure of the grouting sheet stone retaining wall body comprises the following steps of:
step A: detecting; adopting a ground penetrating radar to detect the inside of the retaining wall body to be repaired;
and (B) step (B): plugging; blocking the retaining wall body and the settlement joint by adopting cement mortar, broken cloth or paper board, and reserving observation holes at the corners of the retaining wall body;
step C: setting out; determining the position of a hollow self-advancing anchor rod on a retaining wall body, and lofting;
step D: dredging the original water discharge hole of the retaining wall body, and lengthening the original water discharge hole and the needed lengthening water discharge hole;
step E: a plurality of hanging steel bars are planted on the retaining wall body, and a steel bar net is hung on the hanging steel bars;
step F: spraying or pouring concrete on the surface of the reinforcing mesh to form a concrete facing;
step G: setting out and drilling holes on the concrete facing according to the required position of the hollow self-advancing anchor rod, and inserting the hollow self-advancing anchor rod into the retaining wall body;
step H: grouting the retaining wall body through the hollow self-feeding anchor rod by adopting a grouting machine, wherein grouting is performed according to the sequence of the hollow self-feeding anchor rod from bottom to top;
step G: and sealing the hollow self-advancing anchor rod after the slurry is finally solidified.
Compared with the prior art, the invention has the beneficial effects that:
1. by reinforcing the retaining wall body with poor conditions, when the technology is used for the embankment/road shoulder wall, the road sealing treatment can be omitted, the traffic can still be ensured, the traffic jam and related economic and social problems caused by the traffic jam are avoided, meanwhile, the filling type grouting is carried out on the original retaining wall body under the grouting effect, and the overall strength of the retaining wall body is improved;
2. the original retaining wall body is reinforced for the second time, so that the process of rebuilding the retaining wall after the retaining wall is removed in the traditional maintenance is avoided, the influence of dust, noise and the like on nearby residents in the engineering implementation is avoided, and the influence of natural disasters on the residents is avoided to a greater extent;
3. compared with the scheme of rebuilding after the removal of the retaining wall, the method avoids complicated rebuilding process, has simpler operation and strong repeatability, shortens the construction period and greatly reduces the cost.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a flow chart of the present invention;
FIG. 4 is a cross-sectional view of another embodiment of the present invention;
FIG. 5 is a schematic structural view of the seal anchor assembly;
reference numerals: retaining wall body 1, hollow self-feeding anchor rod 2, hanging steel bar 3, concrete facing 4, steel bar net 5, lengthening water discharge hole 6, original water discharge hole 61, basement ground line 7, wall back soil body 8, retaining wall foundation 9, observation hole 10, settlement joint 11, slurry filling pipe 12, grouting machine 13, steel backing plate 14, wedge-shaped steel backing plate 15, nut 16 and concrete 17.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-5, a grouting reinforcement structure for grouting sheet stone retaining wall bodies comprises a grouting machine 13 and a plurality of retaining wall bodies 1 arranged in rows, wherein original water drain holes 61 are formed in the retaining wall bodies 1; the exposed surface of the retaining wall body 1 is provided with a concrete protecting surface 4, and an extension water drain hole 6 communicated with the original water drain hole 61 is arranged in the concrete protecting surface 4; the concrete facing 4 is also provided with a plurality of hollow self-advancing anchor rods 2 inserted in the retaining wall body 1, and the grouting machine 13 is provided with grouting pipes 12 communicated with the hollow self-advancing anchor rods 2.
The retaining wall body 1 and the retaining wall foundation 9 are all installed retaining wall structures, the back of the retaining wall body 1 and the retaining wall foundation 9 are abutted against the wall back soil body 8, the reinforcing steel bar net 5 is hung on the retaining wall body 1, the surface of the retaining wall body 1 is structurally reinforced, the setting of the concrete facing 4 is facilitated under the action of the reinforcing steel bar net 5, and therefore the concrete facing 4 is fixedly connected to the surface of the retaining wall body 1.
The retaining wall body 1 is of a stone retaining wall structure, the extension drain hole 6 can be formed by connecting a PVC pipe with a pipeline of the original drain hole 61, if the pipeline of the original drain hole 61 fails, the drilling can be performed again, and the water permeable pipe with geotextile wrapped reversely is arranged for draining, so that the required extension drain hole 6 is obtained.
The retaining wall foundation 9 for supporting the retaining wall body 1 is arranged at the bottom of the retaining wall body 1, the settlement joint 11 is formed between the adjacent retaining wall bodies 1, cement mortar is filled in the settlement joint 11, and therefore no gap is reserved between the adjacent retaining wall bodies 1 under the action of the cement mortar, and leakage in the grouting process of the retaining wall body 1 is avoided.
The hollow self-advancing anchor rods 2 are arranged on the concrete facing 4 in a quincuncial shape, the number of the hollow self-advancing anchor rods 2 is set according to actual needs, and the hollow self-advancing anchor rods 2 are required to be lofted on the concrete facing 4 and the retaining wall body 1 before the hollow self-advancing anchor rods 2 are set, so that the installation accuracy of the hollow self-advancing anchor rods 2 is ensured.
The concrete facing 4 is internally provided with a reinforcing steel bar net 5 which is abutted against the retaining wall body 1, the reinforcing steel bar net 5 is provided with a hanging reinforcing steel bar 3 which is used for hanging the reinforcing steel bar net 5 on the retaining wall body 1, the reinforcing steel bar net 5 is abutted against the outer surface of the retaining wall body 1, and a die frame structure of the required concrete facing 4 is formed conveniently.
The steel bar net 5 is provided with a plurality of hanging steel bars 3 connected with the steel bar net 5, the hanging steel bars 3 are spliced in the retaining wall body 1, the hanging steel bars 3 are fixedly connected to the surface of the steel bar net 5 in a welding mode, the retaining wall body 1 is provided with splicing holes corresponding to the hanging steel bars 3, the hanging steel bars 3 are spliced in the corresponding splicing holes, and therefore the steel bar net 5 is abutted to the retaining wall body 1, and the hanging steel bars 3 and the steel bar net 5 can be of an integrated structure or a split structure.
The concrete facing 4 is built or sprayed on the surface of the steel bar mesh 5, the required concrete facing 4 is obtained by building or spraying concrete on the surface of the steel bar mesh 5, and the building or spraying concrete area of the concrete facing 4 is designed according to the surface size of the retaining wall body 1, so that the concrete facing 4 covers the surface of the integral retaining wall body 1, and the filling and the finishing of the surface of the retaining wall body 1 are realized.
The cavity is from advancing stock 2 along the inward direction downward sloping setting of barricade wall body 1 to through under the effect of gravity, the cavity is from advancing stock 2 in thick liquid can flow along the length direction of cavity from advancing stock 2, makes thick liquid can barricade wall body 1 from outside and the inward direction flow, satisfies barricade wall body 1's inside slip casting demand, and cavity is from advancing stock 2 length should be one half of barricade wall body 1 thickness, needs to have certain horizontal contained angle.
The observation hole 10 for observing grouting effect is formed in the bottom of the retaining wall body 1, the observation hole 10 is formed in the corner of the retaining wall body 1, and grouting effect in the retaining wall body 1 can be observed through the observation hole 10.
The concrete facing 4 is provided with an anchor sealing assembly corresponding to the hollow self-advancing anchor rod 2, and the anchor sealing assembly comprises a nut 16 arranged at the end part of the hollow self-advancing anchor rod 2 and concrete 17 poured outside the nut 16.
The anchor sealing assembly further comprises a steel backing plate 14 abutting the concrete facing 4 and a wedge-shaped steel backing plate 15 abutting the steel backing plate 14, and nuts 16 abut the wedge-shaped steel backing plate 15.
Embodiment one: when the damage of the retaining wall 1 is serious, the hanging steel bars 3 are inserted on the retaining wall 1, the hanging steel bars 3 incline downwards along the retaining wall 1 from outside to inside, so that an upward included angle is formed between the exposed section of the hanging steel bars 3 and the retaining wall 1, the steel bar nets 5 are hung on the retaining wall 1 under the action of the hanging steel bars 3 which are arranged upwards in a plurality of inclinations, the steel bar nets 5 are suspended on the retaining wall through wood blocks and concrete cushion blocks, and the steel bar nets 5 of the concrete protection surface 4 are ensured to have a certain protective layer thickness and the reinforcing effect of the steel bar nets 5 on the retaining wall 1.
The reinforcement mesh 5 is used as a mould frame to perform masonry or concrete spraying to obtain a required concrete facing 4, and the concrete facing 4 forms a new exposed surface of the retaining wall 1, so that the reinforcing and the repairing of the exposed surface of the retaining wall 1 are realized, the hollow self-advancing anchor rod 2 is arranged on the concrete facing 4 in a lofting and punching manner, the retaining wall 1 is grouted through the hollow self-advancing anchor rod 2, and the filling and repairing of the interior of the retaining wall 1 are realized.
Embodiment two: when the damage of barricade wall body 1 is slight, barricade wall body 1 possesses self effectual exposure face this moment, and after carrying out surface clearance to barricade wall body 1, directly can loft, punch on barricade wall body 1 to set up cavity from advancing stock 2, carry out slip casting to barricade wall body 1 through cavity from advancing stock 2, realize the filling repair to barricade wall body 1 inside.
The construction method of the grouting reinforcement structure of the grouting sheet stone retaining wall body comprises the following steps of:
step A: detecting; the method comprises the steps of adopting a ground penetrating radar to detect the inside of the retaining wall body 1 to be repaired, and then cleaning vegetation, floating soil, loose stones and the like on the surface of the retaining wall body 1, so that the exposed surface of the retaining wall body 1 is exposed to air.
And (B) step (B): plugging; adopt thick liquid to carry out shutoff to barricade wall body 1 and subsiding crack 11 to reserve observation hole 10 in barricade wall body 1 corner department, paint cement mortar in barricade wall body 1, subsiding crack 11 and pointing the department that drops through the mode of laying bricks or stones, ensure the seal of barricade wall body 1 exposed surface, prevent that follow-up slip casting in-process thick liquid from flowing out from barricade wall body 1 surface, influence grouting effect.
Step C: setting out; the position of the hollow self-advancing anchor rod 2 is determined on the retaining wall body 1, lofting is carried out, and the quincuncial lofting is carried out along the wall surface of the retaining wall body (1) according to a certain interval in the transverse and longitudinal directions.
Step D: the original water drain hole 61 of the retaining wall body 1 is dredged, the original water drain hole 61 and the needed lengthening water drain hole 6 are lengthened, and the PVC pipe is adopted to perform lengthening operation on the original water drain hole 61.
Step E: a plurality of hanging steel bars 3 are implanted on the retaining wall body 1, the hanging steel bars 3 are exposed on the surface of the retaining wall body 1 for a certain length, the exposed sections of the hanging steel bars 3 are obliquely upwards arranged, a steel bar net 5 is hung on the hanging steel bars 3, and the steel bar net 5 is suspended and distributed above the retaining wall body 1 through wood blocks and concrete cushion blocks.
Step F: concrete is sprayed or poured on the surface of the reinforcing mesh 5 to form a concrete facing 4, and the concrete facing 4 is a new exposed surface of the retaining wall body 1, so that the retaining wall is primarily reinforced and the sealing operation inside the retaining wall body 1 is facilitated.
Step G: the concrete facing 4 is provided with a lofting and drilling hole according to the required position of the hollow self-advancing anchor rod 2, the hollow self-advancing anchor rod 2 is inserted into the retaining wall body 1, the length of the hollow self-advancing anchor rod 2 is preferably half of the thickness of the retaining wall body 1, and a certain horizontal included angle is required.
Step H: if the cavity gap in the retaining wall body 1 is larger, fine sand is added into the slurry, and an accelerator is added to shorten the initial setting time, the slurry is injected into the retaining wall body 1 through the hollow self-feeding anchor rod 2 by adopting a grouting machine 13, and the grouting is carried out according to the sequence of the hollow self-feeding anchor rod 2 from top to bottom;
step G: the hollow self-advancing anchor rod 2 adopts a steel backing plate 14, a wedge-shaped steel backing plate 15, a nut 16 and concrete 17 to seal the anchor after the slurry is finally solidified.
The anchor sealing assembly comprises a nut 16 arranged at the end part of the hollow self-advancing anchor rod 2, concrete 17 poured outside the nut 16, a steel backing plate 14 abutted with the concrete facing 4, and a wedge-shaped steel backing plate 15 abutted with the steel backing plate 14, wherein the nut 16 is abutted on the wedge-shaped steel backing plate 15.
Before actual construction, the foundation ground line 7 of the retaining wall body 1 is cleaned and properly excavated, and the integral retaining wall body 1 is ensured to be exposed in the air, so that the reinforcing steel bar net 4 is conveniently installed on the retaining wall body 1, the settlement joint 11 between the adjacent retaining wall bodies 1 is filled, the blocking of the retaining wall body 1 is realized, and after the blocking of the retaining wall body 1 is finished, the reinforcing steel bar net 4 is built or concrete is sprayed to form the concrete protection surface 4.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more herein: retaining wall 1, hollow self-advancing anchor rod 2, hanging steel bar 3, concrete facing 4, steel bar net 5, original drain hole 61, extension drain hole 6, basement ground line 7, wall back soil body 8, retaining wall foundation 9, observation hole 10, settlement joint 11, grout filling pipe 12, grouting machine 13, steel backing plate 14, wedge steel backing plate 15, nut 16, concrete 17, etc., but the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (10)
1. The grouting reinforcement structure of the grouting sheet stone retaining wall body comprises a grouting machine (13) and a plurality of retaining wall bodies (1) arranged in rows, wherein original water discharge holes (61) are formed in the retaining wall bodies (1); the retaining wall is characterized in that a concrete protection surface (4) is arranged on the exposed surface of the retaining wall body (1), and an extension water drain hole (6) communicated with the original water drain hole (61) is arranged in the concrete protection surface (4); the concrete facing (4) is also provided with a plurality of hollow self-advancing anchor rods (2) inserted in the retaining wall body (1), and the grouting machine (13) is provided with grouting pipes (12) communicated with the hollow self-advancing anchor rods (2).
2. The grouting reinforcement structure of a grouting sheet stone retaining wall body according to claim 1, wherein retaining wall foundations (9) for supporting the retaining wall body (1) are arranged at the bottom of the retaining wall body (1), and sedimentation gaps (11) are formed between adjacent retaining wall foundations (9).
3. Grouting reinforcement structure of grouting sheet stone retaining wall body according to claim 1, characterized in that a plurality of hollow self-advancing anchor rods (2) are arranged on the concrete facing (4) in a quincuncial shape.
4. The grouting reinforcement structure of the grouting sheet stone retaining wall body according to claim 1, wherein a reinforcing steel bar net (5) abutted against the retaining wall body (1) is arranged in the concrete protecting surface (4), and a hanging reinforcing steel bar (3) for hanging the reinforcing steel bar net (5) on the retaining wall body (1) is arranged on the reinforcing steel bar net (5).
5. The grouting reinforcement structure for the grouting sheet stone retaining wall body according to claim 4, wherein the concrete facing (4) is laid or sprayed on the surface of the reinforcing mesh (5).
6. The grouting reinforcement structure of the grouting sheet stone retaining wall body according to claim 1, wherein the hollow self-advancing anchor rod (2) is obliquely arranged downwards along the inward direction of the retaining wall body (1).
7. The grouting reinforcement structure of the grouting sheet stone retaining wall body according to claim 1, wherein an observation hole (10) for observing grouting effect is formed in the bottom of the retaining wall body (1).
8. The grouting reinforcement structure of the grouting sheet stone retaining wall body according to claim 1, wherein the concrete facing (4) is provided with an anchor sealing assembly corresponding to the hollow self-advancing anchor rod (2). The anchor sealing assembly comprises a nut (16) arranged at the end part of the hollow self-advancing anchor rod (2) and concrete (17) poured outside the nut (16).
9. The grouting reinforcement structure of the grouting sheet stone retaining wall according to claim 8, wherein the anchor sealing assembly further comprises a steel backing plate (14) abutted with the concrete facing (4) and a wedge-shaped steel backing plate (15) abutted with the steel backing plate (14), and the nut (16) is abutted on the wedge-shaped steel backing plate (15).
10. A construction method of a grouting reinforcement structure of a grouting sheet stone retaining wall body, which is characterized by comprising the following steps of:
step A: detecting; adopting a ground penetrating radar to detect the inside of a retaining wall body (1) to be repaired;
and (B) step (B): plugging; blocking the retaining wall body (1) and the settlement joint (11) by adopting cement mortar or broken cloth and paper board, and reserving an observation hole (10) at the basement of the retaining wall body (1);
step C: setting out; the position of a hollow self-advancing anchor rod (2) is determined on a retaining wall body (1), and lofting is carried out;
step D: dredging the original water discharge hole (6) of the retaining wall body (1), and lengthening the original water discharge hole (6) and the needed lengthening water discharge hole (61);
step E: a plurality of hanging steel bars (3) are planted on the retaining wall body (1), and a steel bar net (5) is hung on the hanging steel bars (3);
step F: spraying or pouring concrete on the surface of the reinforcing mesh (5) to form a concrete facing (4);
step G: setting out and drilling holes on the concrete facing (4) according to the required positions of the hollow self-advancing anchor rods (2), and inserting the hollow self-advancing anchor rods (2) into the retaining wall body (1);
step H: grouting the retaining wall body (1) through the hollow self-feeding anchor rod (2) by adopting a grouting machine (13), wherein grouting is performed according to the sequence of the hollow self-feeding anchor rod (2) from bottom to top;
step G: the hollow self-advancing anchor rod (2) is used for sealing the anchor after the slurry is finally solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310828491.8A CN116607562A (en) | 2023-07-07 | 2023-07-07 | Grouting sheet stone retaining wall body grouting reinforcement structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310828491.8A CN116607562A (en) | 2023-07-07 | 2023-07-07 | Grouting sheet stone retaining wall body grouting reinforcement structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116607562A true CN116607562A (en) | 2023-08-18 |
Family
ID=87682075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310828491.8A Pending CN116607562A (en) | 2023-07-07 | 2023-07-07 | Grouting sheet stone retaining wall body grouting reinforcement structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116607562A (en) |
-
2023
- 2023-07-07 CN CN202310828491.8A patent/CN116607562A/en active Pending
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