CN117449347B - High-filling existing buttress type retaining wall connection reinforcing structure and construction method - Google Patents
High-filling existing buttress type retaining wall connection reinforcing structure and construction method Download PDFInfo
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- CN117449347B CN117449347B CN202311738593.7A CN202311738593A CN117449347B CN 117449347 B CN117449347 B CN 117449347B CN 202311738593 A CN202311738593 A CN 202311738593A CN 117449347 B CN117449347 B CN 117449347B
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 36
- 230000002787 reinforcement Effects 0.000 claims abstract description 28
- 210000003371 toe Anatomy 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 239000002689 soil Substances 0.000 claims description 11
- 210000001255 hallux Anatomy 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 5
- 210000004906 toe nail Anatomy 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- 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
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
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- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Retaining Walls (AREA)
Abstract
The invention provides a high-filling existing buttress type retaining wall joint construction reinforcing structure and a construction method, wherein the high-filling existing buttress type retaining wall joint construction reinforcing structure comprises an existing buttress type retaining wall structure, a first joint construction retaining wall structure and a second joint construction retaining wall structure, wherein the existing buttress type retaining wall structure comprises an existing panel, an existing rib plate, an existing bottom plate and an existing wall toe plate, the first joint construction retaining wall structure comprises a first rib plate, a second rib plate, a first panel, a first bottom plate and a first wall toe plate, the first rib plate is overlapped with the existing rib plate, and the first wall toe plate is overlapped with the existing bottom plate; the second connecting and constructing retaining wall structure comprises a second panel, a third rib plate and a second bottom plate, wherein the second panel is connected and constructed on the existing panel, and the third rib plate is connected and constructed on the existing rib plate. The invention can effectively solve the problem that the safety of the existing buttress type retaining wall does not meet the design requirement, and effectively improves the slope stability of the high-fill area by carrying out the connection and reinforcement on the basis of the original buttress type retaining wall.
Description
Technical Field
The invention mainly relates to the technical field of slope support construction, in particular to a high-fill existing buttress retaining wall connection reinforcing structure and a construction method.
Background
In the existing high filling engineering, the buttress type retaining wall is generally composed of a bottom plate, a panel, rib plates and a toe plate, wherein the panel is vertically arranged between the toe plate and the bottom plate, the side surfaces of the rib plates are connected to the panel, and the bottom surface of the rib plates is connected to the bottom plate.
The buttress type retaining wall with the structure often encounters the situation that the original buttress type retaining wall is insufficient in anti-slip and anti-capsizing safety due to factors such as lower safety coefficient of early design, change of backfill materials after the wall, increase of filling height and the like. If the reconstruction cost is too high and serious waste is caused, the environment is polluted in the dismantling process, and the method is not a good solving measure.
The common mode of reinforcing the existing buttress type retaining wall is mainly a mode of combining the back filling grouting of the wall with the anchor pulling reinforcement of the retaining wall, the mode has high overall cost, and the pollution soil and the poor earthquake resistance are not optimal solutions.
Disclosure of Invention
In order to solve the defects of the prior art, the invention combines the prior art, and provides a high-filling existing buttress type retaining wall joint construction reinforcing structure and a construction method, which can effectively solve the problem that the safety of the existing buttress type retaining wall does not meet the design requirement.
The technical scheme of the invention is as follows:
according to one aspect of the present invention, there is provided a high-fill existing buttress retaining wall joint reinforcement structure comprising an existing buttress retaining wall structure comprising an existing panel, an existing rib plate, an existing floor and an existing toe plate, a first joint retaining wall structure and a second joint retaining wall structure, the first joint retaining wall structure being located at the rear of the existing buttress retaining wall structure, the second joint retaining wall structure being located at the upper part of the existing buttress retaining wall structure and the first joint retaining wall structure;
the first construction retaining wall structure comprises a first rib plate, a second rib plate, a first panel, a first bottom plate and a first wall toe plate, wherein the first wall toe plate and the first bottom plate are respectively positioned at two sides of the bottom of the first panel, the first rib plate is connected with the first panel and the first wall toe plate, the second rib plate is connected with the first panel and the first bottom plate, the first rib plate is in lap joint with the existing rib plate, and the first wall toe plate is in lap joint with the existing bottom plate;
the second construction retaining wall structure comprises a second panel, a third rib plate and a second bottom plate, wherein the third rib plate is connected with the second panel and the second bottom plate, the second panel is constructed on the existing panel, the third rib plate is constructed on the existing rib plate, the second bottom plate is simultaneously connected with the existing panel, the existing rib plate and the first panel, and the rear part of the second panel is paved with geogrid.
In this structure, through reasonable setting and connect the first barricade structure of building and the second of building that connects on existing buttress formula barricade structure, can improve the stability of barricade by a wide margin, have apparent advantage in aspects such as saving material, reduction engineering cost, energy-concerving and environment-protective, shock resistance.
Preferably, the existing rib plate, the first rib plate, the second rib plate and the third rib plate are all multiple, the opposite surfaces of the existing rib plate and the first rib plate are inclined planes, and the inclined plane structure can improve the stability of the rib plate and the stability after connection and establishment.
Preferably, the existing wall toe board and the existing bottom board are cast into a whole, and the existing panel is vertically arranged between the existing wall toe board and the existing bottom board, and the existing rib board and the existing panel and the existing bottom board are cast into a whole.
Preferably, the height of the first connecting and constructing retaining wall structure is smaller than that of the existing buttress retaining wall structure, and the height difference is not smaller than 2m;
the thickness of the first rib plate, the second rib plate and the first panel is larger than that of the existing rib plate and the existing panel, the thickness difference is not smaller than 20cm, and the thickness of the first bottom plate is larger than that of the existing bottom plate and the thickness difference is not smaller than 50cm;
the existing rib plate is aligned with the center of the first rib plate in the thickness direction, the overlapping part of the existing rib plate reinforcing steel bars and the first rib plate reinforcing steel bars is connected through binding or welding, and the overlapping length of the existing rib plate and the first rib plate is not less than 1 time of the thickness of the first rib plate.
The first joint is built the barricade structure height and is less than existing structure, and it can make things convenient for the second to connect to build the setting and overlap joint of barricade structure, ensures overlap joint length, improves overall stability, avoids taking place to shear failure in the department of connecing.
Preferably, the first toe board is arranged on the top surface of the heel of the existing bottom board;
two rows of tie bars are implanted at the heel position of the existing bottom plate at equal intervals along the horizontal direction, and the tie bars are in binding connection with the vertical main bars of the first panel;
the length of the first wall toe board is not less than 1.5m, and the overlapping length of the first wall toe board and the existing bottom board is not less than 1.5m.
The first wall toe board and the existing bottom board adopt an overlapped building mode, so that the first wall toe board has excellent stability, and the structure after connection is firmer due to the arrangement of the tie bars between the heel and the first panel.
Preferably, the first rib plate, the first panel and the second rib plate are integrally cast with the first bottom plate,
the existing rib plates, the existing bottom plate, the existing panel, the first wall toe plate, the first rib plates and the first panel enclose a box structure, and the inside of the box structure is filled with ash and soil materials in a compacting and backfilling mode.
Preferably, the stressed main rib of the second bottom plate is bound and connected with the main rib of the existing panel, the stressed main rib of the second bottom plate in the plate length direction penetrates through the existing rib plate, concrete at the overlapping part of the existing rib plate and the second bottom plate is broken, and the reinforced structural net of the existing rib plate is reserved to form holes for the stressed main rib of the second bottom plate in the plate length direction to penetrate through;
and the overlapping parts of the second bottom plate, the first panel, the existing rib plates and the existing panel are poured into a whole.
The connection mode of the second bottom plate can ensure the strength and the stability of the second connection retaining wall structure after being constructed.
Preferably, the thickness of the second panel is equal to that of the existing panel, the thickness of the third rib plate is equal to that of the existing rib plate, the existing rib plate and the third rib plate are aligned in the center in the thickness direction, and the overlap joint length of the third rib plate and the existing rib plate is not less than 2m;
and the third rib plate, the second panel, the existing panel, the second bottom plate and the existing rib plate are poured into a whole.
Preferably, the auxiliary structure comprises an overground retaining wall and an iron fence arranged at the top end of the overground retaining wall, and the overground retaining wall is connected to the top surface of the second panel.
According to another aspect of the present invention, there is provided a construction method of the above-mentioned high-fill existing buttress retaining wall connection reinforcing structure, comprising the steps of:
s1, breaking concrete of the existing rib plate along one side of the existing rib plate far away from the existing panel, enabling the length of the existing rib plate exposed to the main rib horizontally to be not less than 1 time of the thickness of the first rib plate, flushing, and implanting two rows of tie ribs at equal intervals along the heel position of the existing bottom plate horizontally;
s2, binding and supporting the reinforcing mesh of the first bottom plate, the first wall toe plate and the first panel, and pouring the first wall toe plate and the first bottom plate;
s3, binding a first rib plate reinforcing steel bar net, welding the first rib plate horizontal main rib with the existing rib plate horizontal main rib, binding a second rib plate reinforcing steel bar net, supporting a mould of the first rib plate, the first panel and the second rib plate, and pouring concrete;
s4, backfilling and compacting ash soil in a certain proportion in a box body surrounded by the existing panel, the existing bottom plate, the existing rib plate, the first panel and the first wall toe plate in a layering manner;
s5, breaking holes with the same thickness as the second bottom plate at the penetrating position of the second bottom plate on the existing rib plate, reserving the existing rib plate reinforcing mesh, breaking holes with the same thickness as the second bottom plate at the overlapping position of the second bottom plate on the existing panel, reserving the existing panel reinforcing mesh, binding and connecting the second bottom plate reinforcing mesh with the reinforcing mesh at the breaking position of the existing panel, penetrating the second bottom plate reinforcing mesh into the breaking holes of the existing rib plate, binding and connecting reinforcing steel bars at the holes of the existing rib plate, supporting a mould, and pouring the second bottom plate;
s6, compacting and backfilling a certain proportion of gray soil outside the first construction retaining wall in a layered manner, and backfilling to a second bottom plate position;
s7, connecting a second panel and a third rib plate at the equal cross section of the existing panel and the existing rib plate; layering geogrid behind the second panel, compacting and backfilling a certain proportion of gray soil;
s8, constructing the overground retaining wall and installing the iron fence.
The invention has the beneficial effects that:
1. the reinforcement structure can effectively solve the problem that the safety of the existing buttress type retaining wall does not meet the design requirement by constructing the first constructing retaining wall structure and the second constructing retaining wall structure on the existing buttress type retaining wall structure, and the reinforcement structure is constructed and reinforced on the basis of the original retaining wall, has strong operability and high replicability, and has remarkable advantages in the aspects of saving materials, reducing engineering cost, saving energy, protecting environment, resisting shock and the like compared with the prior art.
2. The construction method has the advantages of simple process and standard operation flow, the constructed reinforcing structure has excellent stability and firmness, and the construction period and the construction cost can be reduced through reasonable construction steps.
Drawings
FIG. 1 is a schematic view of a high-fill existing buttress reinforcement structure according to the present invention;
FIG. 2 is a schematic diagram of reinforcement of a reinforcement structure of a first and a second wall according to the present invention;
FIG. 3 is a schematic view of a prior art buttress wall and a first constructed wall structure according to the present invention;
FIG. 4 is a three-dimensional model of an existing buttress and a first engineered wall according to the present invention;
FIG. 5 is a top view of the section labeled A-A of FIG. 3 in accordance with the present invention;
FIG. 6 is a schematic view of a second floor reinforcement of the present invention with existing ribs in place;
FIG. 7 is a three-dimensional model of a reinforcement structure for a high-fill existing buttress retaining wall;
fig. 8 is a schematic view of a geogrid layout of a second construction retaining wall according to the present invention.
The reference numbers shown in the drawings:
110-existing panel, 120-existing rib, 121-existing rib and first rib overlap section, 122-existing rib openings, 123-existing rib rebar grid structure, 130-existing floor, 140-existing toe plate, 150-heel, 151-tie rebar,
210-first rib, 211-existing rib connected with first rib horizontal stress rib, 220-first panel, 221-first panel rib, 230-second rib, 231-second rib, 240-first floor, 241-first floor rib,
310-second panel, 311-second panel reinforcement, 320-third rib plate, 321-third rib plate reinforcement, 322-existing rib plate and third rib plate horizontal stress rib connection, 330-second bottom plate, 331-second bottom plate reinforcement, 340-water drain hole, 350-geogrid,
410-overground retaining wall, 420-iron fence,
510-upper road surface, 520-lower road surface,
610-backfill material.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
The embodiment provides a reinforcing structure is built in existing buttress formula barricade of high fill, and this reinforcing structure is mainly to connect to build the reinforcement rationally on current buttress formula barricade structure basis, and then effectively improves the stability of high fill area side slope, and the scheme has energy-concerving and environment-protective, save material, reduce cost, improves advantages such as shock resistance and security, has fine replicability simultaneously.
Referring to fig. 1-8, there is shown a schematic diagram of a reinforcing structure of a high-fill existing buttress according to the present embodiment.
The original retaining wall structure is an existing buttress retaining wall structure, and mainly comprises an existing panel 110, an existing rib plate 120, an existing bottom plate 130 and an existing toe plate 140, wherein the existing toe plate 140 and the existing bottom plate 130 are integrally cast, the existing panel 110 is arranged between the existing toe plate 140 and the existing bottom plate 130, the existing toe plate 140 and the existing bottom plate 130 are horizontally arranged, the existing panel 110 is vertically arranged, the existing rib plate 120 is used for reinforcement and is in a trapezoid structure, the inner side surface is an inclined plane, the existing rib plate 120 is a plurality of (two are shown in the figure) arranged at a certain interval, the vertical plane of the existing rib plate 120 is connected to the existing panel 110, the horizontal plane of the existing rib plate 120 is connected to the existing bottom plate 130, and the existing rib plate 120 is integrally cast with the existing panel 110 and the existing bottom plate 130.
The reinforcement structure connected to the existing buttress structure mainly comprises a first connected and built retaining wall structure, a second connected and built retaining wall structure and an auxiliary structure.
Embodiment 1 this embodiment provides a concrete structure of a first building retaining wall, which is mainly disposed at the rear of an existing buttress retaining wall structure, and the first building retaining wall structure mainly includes a first rib plate 210, a second rib plate 230, a first panel 220, a first bottom plate 240 and a first toe plate 250.
Referring to the drawings, first bottom plate 240 and first toenail 250 are horizontally arranged, first panel 220 is vertically arranged between first bottom plate 240 and first toenail 250, first rib plate 210 is triangular, the outer side is a bevel edge for building with corresponding existing rib plate 120, the vertical plane of first rib plate 210 is connected to one side of first panel 220, the horizontal plane is positioned at the upper part, the lower part of first rib plate 210 is connected to first toenail 250, second rib plate 230 is triangular overall, the vertical plane is connected to the other side of first panel 220, the horizontal plane is connected to first bottom plate 240, first rib plate 210 and second rib plate 230 are all a plurality of and correspond to the positions of existing rib plates 120, and reinforcement of the first construction retaining wall structure can be referred to as shown in the drawings. In the above-described structure of the present embodiment, first rib plate 210 is overlapped with existing rib plate 120, and first toenail 250 is overlapped with existing bottom plate 130, so that stable support can be formed at the rear of the existing buttress structure.
In this embodiment, the height of the first connecting wall structure is smaller than that of the existing buttress wall structure, and the height difference should be not smaller than 2m, and the upper surfaces of the first rib plates 210 and the first panels 220 of the first connecting wall structure are flush. The second wall structure is required to be built on the upper parts of the existing buttress type wall structure and the first wall structure, the third rib plate 320 in the second wall structure and the existing rib plate 120 and the existing panel 110 in the existing buttress type wall structure are required to meet the lap joint of a certain length, and the overall stability of the wall structure is improved, so that shearing damage can not occur at the joint.
As a preferable scheme of the present embodiment, the thicknesses of the first rib plate 210, the second rib plate 230 and the first panel 220 are greater than the thicknesses of the corresponding existing rib plate 120 and the existing panel 110, and the thickness difference is not less than 20cm; the thickness of the first bottom plate 240 is greater than that of the existing bottom plate 130, and the thickness difference is not less than 50cm, so as to facilitate the overlap joint between the first rib plate 210 and the existing rib plate 120, and simultaneously ensure the stability of the first construction retaining wall structure.
Meanwhile, the overlapping length of the existing rib plate 120 and the first rib plate 210 should be not less than 1 time of the thickness of the first rib plate 210, the central axis of the existing rib plate 120 in the thickness direction is coaxial with the central axis of the first rib plate 210 in the thickness direction, and the overlapping portion of the reinforcing steel bars of the existing rib plate 120 and the reinforcing steel bars of the first rib plate 210 is connected through binding or welding.
In this embodiment, the first toe board 250 is disposed on the top surface of the heel 150 of the existing base plate 130, and the length of the first toe board 250 should be not less than 1.5m, so that the overlapping length of the first toe board 250 and the existing base plate 130 is not less than 1.5m. In this manner, the existing bottom plate 130 and the first toe plate 250 can form an effective overlap, and the existing buttress structure and the bottom of the first receiving wall structure are integrated. Further, two rows of tie bars 151 may be implanted at the heel 150 of the existing bottom plate 130 at equal intervals along the horizontal direction, and the tie bars 151 are bound and connected with the vertical main bars of the first panel 220, so as to further improve stability.
In the above structure, first rib 210, first panel 220, second rib 230 are cast integrally with first floor 240, first toenail 250.
Referring to the drawings, after the first construction retaining wall structure is constructed, the existing rib plates 120, the existing bottom plate 130, the existing face plate 110, the first wall toe plate 250, the first rib plates 210 and the first face plate 220 can be enclosed into a box structure, a certain proportion of backfill materials 610 are adopted to compact and backfill the interior of the box structure, the backfill materials 610 can be made of gray soil materials or other materials with the same functions as the gray soil materials, and the matching proportion is determined according to the selected materials and the required compactness.
Embodiment 2 describes the existing buttress type retaining wall structure and the first building retaining wall structure in detail in embodiment 1, and this embodiment provides a second building retaining wall structure, which is located on top of the existing buttress type retaining wall structure and the first building retaining wall structure.
The second wall structure mainly comprises a second panel 310, a third rib 320, a second bottom plate 330 and a geogrid 350 penetrating the second panel 310.
Referring to the drawings, the second bottom plate 330 is horizontally disposed, the second panel 310 is vertically disposed, the third rib 320 is generally triangular, the vertical plane thereof is connected to the second panel 310, and the horizontal plane thereof is connected to the second bottom plate 330. The second panel 310 is connected to the existing panel 110 in equal thickness, the third rib 320 is connected to the existing rib 120, the second bottom plate 330 is connected to the existing panel 110, the first panel 220, the existing rib 120 and the first rib 210, the second wall structure reinforcement is connected to the second panel 310, and the second panel 310 is provided with a drain hole 340.
The second panel 310, the third rib 320, the second bottom plate 330 and the corresponding existing panel 110, the existing rib 120, the existing bottom plate 130 are equal in thickness, and the second bottom plate 330 is bound and connected with the main rib of the existing panel 110 by the main rib.
It should be noted that, at the overlapping position of the existing panel 110 and the second bottom plate 330, the concrete with the same thickness as the second bottom plate 330 is broken to expose the reinforcement mesh structure of the existing panel 110, so that the horizontal stressed main reinforcement of the second bottom plate 330 can be effectively connected with the reinforcement mesh of the existing panel 110.
As a preferred solution of this embodiment, the second bottom plate 330 is penetrated and arranged in the existing rib plate 120 along the longitudinal direction of the plate, and the existing rib plate reinforcing mesh structure 123 is reserved by breaking the concrete at the overlapping part of the existing rib plate 120 and the second bottom plate 330, so as to form the existing rib plate open hole 122, so that the second bottom plate 330 can penetrate through the longitudinal direction of the plate along the stress main rib, and the second bottom plate 330, the first panel 220, the existing rib plate 120 and the overlapping part of the existing panel 110 are integrally cast, thereby ensuring the stability of the second construction retaining wall structure.
In this embodiment, the second panel 310 is connected to the existing panel 110 in the same cross section, the third rib 320 is connected to the existing rib 120 in the same thickness and in the same axis, the third rib 320 is plural, the third rib 320 is spaced from the existing rib 120, the third rib 320 is integrally cast with the second panel 310, the existing panel 110, the second bottom plate 330 and the existing rib 120, and the overlapping length of the third rib 320 and the existing rib 120 should be no less than 2m.
The auxiliary structure mainly comprises an overground retaining wall 410 and an iron fence 420 arranged at the top end of the overground retaining wall 410, wherein the overground retaining wall 410 is connected to the second panel 310.
Embodiment 3 details the concrete structure of the connection and reinforcement in the application in embodiment 1 and embodiment 2, and the embodiment provides a construction method of the structure, which has the advantages of simple construction process, standard flow, short construction period, high structural stability after construction and the like. The construction method specifically comprises the following steps.
S1, breaking concrete of the existing rib plate 120 along the side, far away from the existing panel 110, of the existing rib plate 120, wherein the exposed length of the horizontal main rib of the existing rib plate 120 is not less than 1 time of the plate thickness of the first rib plate 210, and washing cleanly; two rows of tie bars 151 are horizontally and equally planted along the positions of the butts 150 of the existing bottom plate 130;
s2, binding and supporting the first bottom plate 240, the first wall toe plate 250 and the first panel 220 steel bar mesh, and pouring the first wall toe plate 250 and the first bottom plate 240;
s3, binding the reinforcement mesh of the first rib plate 210, welding the horizontal main reinforcement with the horizontal main reinforcement of the existing rib plate 120, and binding the reinforcement mesh of the second rib plate 230; first rib 210, first panel 220, second rib 230 formwork and casting concrete;
s4, backfilling and compacting a certain proportion of backfill material 610 in a box body surrounded by the existing panel 110, the existing bottom plate 130, the existing rib plate 120, the first rib plate 210, the first panel 220 and the first wall toe plate 250 in a layering manner;
s5, breaking holes with the same thickness as the second bottom plate 330 at the position where the second bottom plate 330 is arranged on the existing rib plate 120, and reserving the existing rib plate reinforcing steel bar net structure 123; at the overlapping position of the second bottom plate 330 on the existing panel 110, holes with the same thickness as the second bottom plate 330 are broken, and a reinforcing mesh of the existing panel 110 is reserved; the reinforcing mesh of the second bottom plate 330 is in binding connection with the reinforcing mesh of the breaking position of the existing panel 110, and the reinforcing mesh of the second bottom plate 330 is penetrated in the existing rib plate holes 122 and is in binding connection with reinforcing steel bars at the existing rib plate holes 122; erecting a mold and pouring a second bottom plate 330;
s6, compacting and backfilling a certain proportion of backfill material 610 in layers at the outer side of the first construction retaining wall, and backfilling to the position of the second bottom plate 330;
s7, connecting a second panel 310 and a third rib plate 320 at the equal section of the existing panel 110 and the existing rib plate 120; layering geogrid 350 behind second panel 310 and compacting backfill material 610 backfilling a proportion;
s8, constructing the overground retaining wall 410 and installing the iron fence 420.
The reinforcing structure built by the construction method can effectively solve the problem that the safety of the existing buttress type retaining wall does not meet the design requirement, and the method is used for building and reinforcing on the basis of the original retaining wall, and is high in operability and reproducibility.
Claims (9)
1. The high-filling existing buttress type retaining wall joint construction reinforcing structure comprises an existing buttress type retaining wall structure, wherein the existing buttress type retaining wall structure comprises an existing panel, an existing rib plate, an existing bottom plate and an existing wall toe plate, and is characterized by further comprising a first joint construction retaining wall structure and a second joint construction retaining wall structure, wherein the first joint construction retaining wall structure is positioned at the rear part of the existing buttress type retaining wall structure, and the second joint construction retaining wall structure is positioned at the upper part of the existing buttress type retaining wall structure and the first joint construction retaining wall structure;
the first construction retaining wall structure comprises a first rib plate, a second rib plate, a first panel, a first bottom plate and a first wall toe plate, wherein the first wall toe plate and the first bottom plate are respectively positioned at two sides of the bottom of the first panel, the first rib plate is connected with the first panel and the first wall toe plate, the second rib plate is connected with the first panel and the first bottom plate, the first rib plate is in lap joint with the existing rib plate, and the first wall toe plate is in lap joint with the existing bottom plate;
the second construction retaining wall structure comprises a second panel, a third rib plate and a second bottom plate, wherein the third rib plate is connected with the second panel and the second bottom plate, the second panel is constructed on the existing panel in a connecting mode, the third rib plate is constructed on the existing rib plate in a connecting mode, the second bottom plate is connected with the existing panel, the existing rib plate and the first panel at the same time, and a geogrid is paved at the rear part of the second panel;
the height of the first building retaining wall structure is smaller than that of the existing buttress retaining wall structure, and the height difference is not smaller than 2m;
the thickness of the first rib plate, the second rib plate and the first panel is larger than that of the existing rib plate and the existing panel, the thickness difference is not smaller than 20cm, and the thickness of the first bottom plate is larger than that of the existing bottom plate and the thickness difference is not smaller than 50cm;
the center alignment of the existing rib plate and the first rib plate in the thickness direction, the overlapping and overlapping parts of the existing rib plate reinforcing steel bars and the first rib plate reinforcing steel bars are connected through binding or welding, and the overlapping length of the existing rib plate and the first rib plate is not less than 1 time of the thickness of the first rib plate.
2. The reinforcing structure for the high-fill existing buttress retaining wall joint of claim 1, wherein the existing rib plates, the first rib plates, the second rib plates and the third rib plates are all a plurality of, and opposite surfaces of the existing rib plates and the first rib plates are inclined surfaces.
3. The high fill existing buttress retaining wall joint strengthening structure of claim 1, wherein said existing wall toe board is integrally cast with existing base plate, and existing rib plates are vertically disposed between existing wall toe board and existing base plate, and existing rib plates are integrally cast with existing face plates and existing base plate.
4. The high fill existing buttress construction reinforcement structure of claim 1, wherein said first toe board is disposed on the heel top surface of the existing floor;
two rows of tie bars are implanted at the heel position of the existing bottom plate at equal intervals along the horizontal direction, and the tie bars are in binding connection with the vertical main bars of the first panel;
the length of the first wall toe board is not less than 1.5m, and the overlapping length of the first wall toe board and the existing bottom board is not less than 1.5m.
5. The high-fill existing buttress reinforcement structure of claim 1, wherein said first rib, first panel, second rib are integrally cast with said first base plate,
the existing rib plates, the existing bottom plate, the existing panel, the first wall toe plate, the first rib plates and the first panel enclose a box structure, and the inside of the box structure is filled with ash and soil materials in a compacting and backfilling mode.
6. The high-filling existing buttress type retaining wall connection reinforcing structure according to claim 1, wherein the stressed main rib of the second bottom plate is in binding connection with the main rib of the existing panel, the stressed main rib of the second bottom plate in the plate length direction penetrates through the existing rib plate, concrete at the overlapping part of the existing rib plate and the second bottom plate is broken, and a reinforcing steel bar structure net of the existing rib plate is reserved to form holes for the stressed main rib of the second bottom plate in the plate length direction to penetrate through;
and the overlapping parts of the second bottom plate, the first panel, the existing rib plates and the existing panel are poured into a whole.
7. The reinforcing structure for the high-fill existing buttress retaining wall joint according to claim 1, wherein the second panel and the existing panel have the same thickness, the third rib has the same thickness as the existing rib, the existing rib and the third rib are aligned in the center in the thickness direction, and the overlap length of the third rib and the existing rib is not less than 2m;
and the third rib plate, the second panel, the existing panel, the second bottom plate and the existing rib plate are poured into a whole.
8. The structure of claim 1, further comprising an auxiliary structure comprising an overground retaining wall and an iron fence mounted on top of the overground retaining wall, the overground retaining wall being mounted on the top surface of the second panel.
9. A method of constructing a high fill existing buttress retaining wall reinforcing structure as claimed in any one of claims 1 to 8, comprising the steps of:
s1, breaking concrete of the existing rib plate along one side of the existing rib plate far away from the existing panel, enabling the length of the existing rib plate exposed to the main rib horizontally to be not less than 1 time of the thickness of the first rib plate, flushing, and implanting two rows of tie ribs at equal intervals along the heel position of the existing bottom plate horizontally;
s2, binding and supporting the reinforcing mesh of the first bottom plate, the first wall toe plate and the first panel, and pouring the first wall toe plate and the first bottom plate;
s3, binding a first rib plate reinforcing steel bar net, welding the first rib plate horizontal main rib with the existing rib plate horizontal main rib, binding a second rib plate reinforcing steel bar net, supporting a mould of the first rib plate, the first panel and the second rib plate, and pouring concrete;
s4, backfilling and compacting ash soil in a certain proportion in a box body surrounded by the existing panel, the existing bottom plate, the existing rib plate, the first panel and the first wall toe plate in a layering manner;
s5, breaking holes with the same thickness as the second bottom plate at the penetrating position of the second bottom plate on the existing rib plate, reserving the existing rib plate reinforcing mesh, breaking holes with the same thickness as the second bottom plate at the overlapping position of the second bottom plate on the existing panel, reserving the existing panel reinforcing mesh, binding and connecting the second bottom plate reinforcing mesh with the reinforcing mesh at the breaking position of the existing panel, penetrating the second bottom plate reinforcing mesh into the breaking holes of the existing rib plate, binding and connecting reinforcing steel bars at the holes of the existing rib plate, supporting a mould, and pouring the second bottom plate;
s6, compacting and backfilling a certain proportion of gray soil outside the first construction retaining wall in a layered manner, and backfilling to a second bottom plate position;
s7, connecting a second panel and a third rib plate at the equal cross section of the existing panel and the existing rib plate; layering geogrid behind the second panel, compacting and backfilling a certain proportion of gray soil;
s8, constructing the overground retaining wall and installing the iron fence.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266622A (en) * | 2013-06-09 | 2013-08-28 | 中铁第四勘察设计院集团有限公司 | L-shaped retaining wall structure with cross-over type special-shaped counterfort |
| JP2015021306A (en) * | 2013-07-19 | 2015-02-02 | 藤林コンクリート工業株式会社 | Repair or reinforcement method of retaining wall |
| CN107447778A (en) * | 2017-09-19 | 2017-12-08 | 中冶沈勘工程技术有限公司 | The heightening and consolidation structure and method of a kind of in-service reinforced concrete retaining wall |
| CN208328983U (en) * | 2018-06-11 | 2019-01-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of rock foundation road barricade increases structure |
| CN208934006U (en) * | 2018-10-18 | 2019-06-04 | 四川省交通运输厅公路规划勘察设计研究院 | The double-deck barrier wall structure |
| CN110374134A (en) * | 2019-07-15 | 2019-10-25 | 浙江交工集团股份有限公司 | A kind of combined member increased suitable for retaining wall and construction method |
| CN112411616A (en) * | 2020-11-11 | 2021-02-26 | 中铁第四勘察设计院集团有限公司 | Buttress type retaining wall |
| CN216130176U (en) * | 2021-07-15 | 2022-03-25 | 安徽瑞成土木工程设计咨询有限公司 | A consolidate retaining wall for increasing consolidate former retaining wall |
-
2023
- 2023-12-18 CN CN202311738593.7A patent/CN117449347B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266622A (en) * | 2013-06-09 | 2013-08-28 | 中铁第四勘察设计院集团有限公司 | L-shaped retaining wall structure with cross-over type special-shaped counterfort |
| JP2015021306A (en) * | 2013-07-19 | 2015-02-02 | 藤林コンクリート工業株式会社 | Repair or reinforcement method of retaining wall |
| CN107447778A (en) * | 2017-09-19 | 2017-12-08 | 中冶沈勘工程技术有限公司 | The heightening and consolidation structure and method of a kind of in-service reinforced concrete retaining wall |
| CN208328983U (en) * | 2018-06-11 | 2019-01-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of rock foundation road barricade increases structure |
| CN208934006U (en) * | 2018-10-18 | 2019-06-04 | 四川省交通运输厅公路规划勘察设计研究院 | The double-deck barrier wall structure |
| CN110374134A (en) * | 2019-07-15 | 2019-10-25 | 浙江交工集团股份有限公司 | A kind of combined member increased suitable for retaining wall and construction method |
| CN112411616A (en) * | 2020-11-11 | 2021-02-26 | 中铁第四勘察设计院集团有限公司 | Buttress type retaining wall |
| CN216130176U (en) * | 2021-07-15 | 2022-03-25 | 安徽瑞成土木工程设计咨询有限公司 | A consolidate retaining wall for increasing consolidate former retaining wall |
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| CN117449347A (en) | 2024-01-26 |
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