CN115198790B - Existing embankment upright retaining wall reinforcing and supporting method - Google Patents
Existing embankment upright retaining wall reinforcing and supporting method Download PDFInfo
- Publication number
- CN115198790B CN115198790B CN202210960797.4A CN202210960797A CN115198790B CN 115198790 B CN115198790 B CN 115198790B CN 202210960797 A CN202210960797 A CN 202210960797A CN 115198790 B CN115198790 B CN 115198790B
- Authority
- CN
- China
- Prior art keywords
- retaining wall
- existing embankment
- embankment
- channel steel
- reinforcing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 88
- 239000010959 steel Substances 0.000 claims abstract description 88
- 238000010276 construction Methods 0.000 claims abstract description 36
- 230000002787 reinforcement Effects 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 241001464837 Viridiplantae Species 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 230000009191 jumping Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011398 Portland cement Substances 0.000 claims description 2
- 238000005536 corrosion prevention Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 6
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008520 organization Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Road Paving Structures (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a method for reinforcing and supporting an existing embankment upright retaining wall, which relates to the field of embankment retaining wall reinforcement, and solves the problems that the construction is limited and the retaining wall is easy to damage by adopting reinforcing measures such as lattice beam anchor rods and the like when the embankment upright retaining wall adjacent to a building is reinforced, the working surface outside the retaining wall is narrow when the retaining wall is reworked after the retaining wall is dismantled, the construction is inconvenient, the earth excavation amount is large when a temporary side slope is repaired, and meanwhile, potential safety hazards and uneconomical and environment-friendly are caused, the scheme is provided as follows: s1: constructing a miniature steel pipe pile; s2: manufacturing an L-shaped channel steel member; s3: the existing embankment upright retaining wall is reinforced and constructed. The method has the characteristics of reinforcing the road subgrade, reducing the lateral pressure of road surface load on the retaining wall, reinforcing soil body behind the upright retaining wall of the existing embankment, reducing the soil pressure born by the upright retaining wall of the existing embankment, simultaneously increasing the anti-slip effect by the miniature steel pipe piles, avoiding the influence of peripheral existing buildings, along with high construction feasibility, convenient construction organization and lower engineering cost.
Description
Technical Field
The invention relates to the field of embankment retaining wall reinforcement, in particular to a method for reinforcing and supporting an existing embankment upright retaining wall.
Background
The embankment retaining wall is a slope on two sides of the highway. Stone is typically used to lay the pattern. Preventing rain wash from thinning roadbed. The retaining wall of the embankment upright retaining wall is arranged vertically to the road surface.
However, with the action of natural erosion, the land relief units of the park belong to degraded hills and mountain front (inter) rushing (flood) relief, the ground is greatly fluctuant, the structural strength of the embankment upright retaining wall can be gradually reduced, the embankment retaining wall needs to be reinforced to protect the embankment retaining wall from being closely adjacent to the existing building, especially when the building is about 0.5m nearest to the retaining wall, if the retaining wall elevation adopts the reinforcing measures such as lattice beam anchor rods and the like, the construction is limited and the retaining wall is easy to damage; if the retaining wall is reworked after being removed, the outer working face of the retaining wall is narrow, the construction is inconvenient, and when the temporary side slope is repaired, the earth excavation amount is large, and meanwhile, potential safety hazards exist and the retaining wall is uneconomical and environment-friendly. Therefore, a method for reinforcing and supporting the upright retaining wall of the existing embankment is provided.
Disclosure of Invention
The invention aims to provide a method for reinforcing and supporting an existing embankment upright retaining wall, which solves the problems that the construction is limited and the retaining wall is easy to damage by adopting reinforcing measures such as lattice beam anchors and the like when the embankment upright retaining wall adjacent to a building is reinforced, the outer working surface of the retaining wall is narrow when the retaining wall is reworked after being dismantled, the construction is inconvenient, the earth excavation amount is large when a temporary side slope is repaired, and meanwhile, the potential safety hazard exists and the method is uneconomical and environment-friendly.
In order to achieve the above purpose, the present invention provides the following technical solutions: a reinforcement and support method for an existing embankment upright retaining wall comprises the following steps:
s1: construction of a miniature steel pipe pile:
1) Adopting an engineering geological drilling machine to form holes on the current pavement, and adopting slurry to clear the holes after forming the holes;
2) After the pile hole is formed, a micro steel pipe pile is put down, and a phi 25PVC grouting pipe is put down together with the micro steel pipe pile;
3) Grouting at normal pressure, wherein the grouting pressure is not less than 0.6MPa;
4) Repeating the steps 1) to 3) until all the miniature steel pipe piles are constructed;
s2: manufacturing an L-shaped channel steel member:
1) The channel steel is subjected to corrosion-resistant treatment such as rust removal and the like before use;
2) Assembling and welding channel steel to form an L-shaped channel steel member according to the length of the required L-shaped channel steel member;
3) Spraying anticorrosion liquid or anticorrosion paint before installation;
s3: the existing embankment upright retaining wall reinforcement construction:
1) After the construction of the miniature steel pipe piles is completed, excavating the current road surface to the bottom elevation in a sectionalized mode, excavating a pressing top plate pouring area at the current road surface bottom elevation, excavating a groove for installing an L-shaped channel steel member between green plants on the vertical retaining wall top of the existing embankment, and excavating a base pit for installing the L-shaped channel steel member at the vertical retaining wall bottom of the existing embankment;
2) Inversely installing the welded L-shaped channel steel component, enabling the L-shaped channel steel component to be clung to the existing embankment upright retaining wall as much as possible, arranging the bottom of the L-shaped channel steel component in a base pit, pouring concrete into the base pit, and backfilling and compacting grooves on the wall top of the existing embankment upright retaining wall;
3) Repeating the steps 1) and 2), and pouring a pressing plate in sections after the installation of part of the L-shaped channel steel members; repeating the steps to finish the installation of the L-shaped channel steel member and the pouring of the pressing plate; and finally repairing the road.
Preferably, in the step 1) of the step 1), the current road surface is in the north-south direction (north is high and south is low), the length is about 105m, the to-be-reinforced retaining wall is positioned at the east side of the road, the road surface width is about 7.6m, the east side pavement width is about 1.6m, and the current road surface absolute elevation (1985 national elevation standard)
10.0-16.9 m, 1-3 layers of existing buildings exist outside the east embankment of the road, the elevation of the first layer of the existing buildings is 9.0-10.3 m (namely the elevation of the bottom of the retaining wall to be reinforced), and the nearest distance from the retaining wall is about 0.5m, so that the height of the retaining wall of the embankment is 1.0-6.6 m.
Preferably, in the step 1) of S1), the position of the outermost miniature steel pipe pile is positioned according to the current green planting position of the road surface, the miniature steel pipe pile is constructed from the outside to the inside, and meanwhile, a guest grid is hung on the outer side of the upright retaining wall of the existing embankment.
Preferably, the holes in 1) of S1 are formed in 8 rows on the road surface along the axial direction of the road, wherein the spacing between 3 rows near the upright retaining wall side of the existing embankment is 0.6m, and the spacing between other rows is 1.2m.
Preferably, in the step 1) of the step S1), the pore diameter of the pore is 250mm, the deviation of verticality is less than 0.5%, the deviation of pile position is less than 10mm, the pore is constructed in a jumping way during the drilling, and no less than 5 rows of drilling holes are arranged between two adjacent rows of construction drilling holes.
Preferably, the mini steel pipe pile in 2) of S1) is a Φ140x4.5 steel pipe.
Preferably, in the step 3) of the step S1, the grouting is performed by adopting cement slurry with P.O 42.5.42.5R composite Portland cement and a water cement ratio of 0.4-0.5 under normal pressure, and the grouting pressure is not less than 0.6MPa.
Preferably, in the step 2) of the step S3), C25 concrete is used to backfill and compact the trench on the upright retaining wall of the existing embankment.
Preferably, the construction range of the S3 medium-pressure roof excavation and pouring is a miniature steel pipe pile area with the spacing of 0.6m close to 3 rows of upright retaining walls of the existing embankment.
Preferably, 100 thick concrete is sprayed on the outer side of the upright retaining wall of the existing embankment after the construction in the step 3) of the step 3 is finished.
Compared with the related art, the method for reinforcing and supporting the upright retaining wall of the existing embankment has the following beneficial effects:
1. the invention provides a reinforcing and supporting method for an existing embankment upright retaining wall, which strengthens road roadbed and reduces lateral pressure of road load on the existing embankment upright retaining wall.
2. The invention provides a method for reinforcing and supporting an existing embankment upright retaining wall, which is used for reinforcing soil body behind the existing embankment upright retaining wall, reducing the soil pressure born by the existing embankment upright retaining wall and increasing the anti-slip effect of miniature steel pipe piles.
3. The invention provides a method for reinforcing and supporting an existing embankment upright retaining wall, which is free from the influence of surrounding existing buildings, has high construction feasibility, convenient construction organization and lower construction cost.
Drawings
Fig. 1 is a sectional view showing reinforcement of an existing embankment upright retaining wall according to the present invention.
Fig. 2 is a plane view of reinforcement of an existing embankment upright retaining wall according to the present invention.
Fig. 3 is a schematic diagram showing the construction steps of reinforcing the existing embankment upright retaining wall according to the method for reinforcing and supporting the existing embankment upright retaining wall of the present invention.
Fig. 4 is an enlarged view of step one in fig. 3.
Fig. 5 is an enlarged view of step two in fig. 3.
Fig. 6 is a side view of step two of fig. 5.
Fig. 7 is an enlarged view of step three in fig. 3.
Fig. 8 is a side view of step three of fig. 7.
Fig. 9 is an enlarged view of step four in fig. 3.
Fig. 10 is a side view of step three of fig. 9.
Fig. 11 is a schematic view of a roof panel of an existing embankment upright retaining wall reinforcement support method according to the present invention.
Fig. 12 is a top view structural diagram of a roof panel of an existing embankment upright retaining wall reinforcing and supporting method of the present invention.
Fig. 13 is a schematic view showing a large section of an L-shaped channel steel member node of an existing embankment upright retaining wall reinforcing and supporting method according to the present invention.
Fig. 14 is a cross-sectional view of an L-shaped channel member of an existing embankment upright retaining wall reinforcing and supporting method of the present invention.
Fig. 15 is a gabion mesh big sample of a method for reinforcing and supporting an upright retaining wall of an existing embankment according to the present invention.
In the figure: 1. current road surface; 2. the existing embankment is upright; 3. existing buildings; 4. miniature steel pipe piles; 5. an L-shaped channel steel member; 6. a groove; 7. a base pit; 8. a bingo mesh; 9. and pressing the top plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1-15, the present invention provides a technical solution: a reinforcement and support method for an existing embankment upright retaining wall comprises the following steps:
s1: construction of a miniature steel pipe pile:
1) Adopting an engineering geological drilling machine to form holes on the current pavement 1, and adopting slurry to clear the holes after forming the holes;
2) After pile hole forming, a micro steel pipe pile 4 is put down, and a phi 25PVC grouting pipe is put down together with the micro steel pipe pile 4;
3) Grouting at normal pressure, wherein the grouting pressure is not less than 0.6MPa;
4) Repeating the steps 1) to 3) until all the miniature steel pipe piles 4 are constructed;
s2: manufacturing an L-shaped channel steel member 5:
1) The channel steel is subjected to corrosion-resistant treatment such as rust removal and the like before use;
2) Assembling and welding channel steel according to the required length of the L-shaped channel steel member 5 to form the L-shaped channel steel member 5;
3) Spraying anticorrosion liquid or anticorrosion paint before installation;
s3: the existing embankment upright retaining wall reinforcement construction:
1) After the construction of the miniature steel pipe piles 4 is completed, excavating the current road surface 1 to the bottom elevation in a sectionalized mode, excavating a roof pressing plate pouring area at the bottom elevation of the current road surface 1, excavating a groove 6 for installing the L-shaped channel steel member 5 between green plants on the wall tops of the existing embankment upright retaining walls 2, and excavating a base pit 7 for installing the L-shaped channel steel member 5 at the bottom of the existing embankment upright retaining walls 2;
2) The welded L-shaped channel steel member 5,L-shaped channel steel member 5 is inversely installed and is clung to the existing embankment upright retaining wall 1 as much as possible, the bottom of the L-shaped channel steel member 5 is arranged in the base pit 7, concrete is poured into the base pit 7, and backfilling compaction is carried out on the groove 6 on the wall top of the existing embankment upright retaining wall 1;
3) Repeating the steps 1) and 2), and after the installation of part of the L-shaped channel steel members 5, casting the pressing plate 9 in a segmented manner; repeating the steps to finish the installation of the L-shaped channel steel member 5 and the pouring of the pressing plate 9; and finally repairing the road.
The road subgrade is reinforced, lateral pressure of road surface load to the existing embankment upright retaining wall 2 is reduced, soil mass behind the existing embankment upright retaining wall 2 is reinforced, soil pressure borne by the existing embankment upright retaining wall 2 is reduced, meanwhile, the anti-slip effect is improved by the miniature steel pipe piles 4, the construction is not influenced by surrounding existing buildings, the construction feasibility is high, construction organization is convenient, and the construction cost is low.
Embodiment two:
referring to fig. 1-15, on the basis of the first embodiment, the present invention provides a technical solution: the current road surface 1 is in the north-south direction (north is high and south is low), the length is about 105m, the vertical retaining wall 2 of the existing embankment to be reinforced is positioned at the east side of the road, the road surface width of the road is about 7.6m, the width of the eastern side pavement is about 1.6m, and the current road surface 1 has absolute elevation (1985 national elevation standard)
10.0-16.9 m, 1-3 layers of existing buildings 3 exist outside the east embankment of the road, the elevation of the first 3 layers of the existing buildings is 9.0-10.3 m (namely, the elevation of the to-be-reinforced retaining wall 1 of the existing embankment) and the nearest distance from the retaining wall is about 0.5m, so that the height of the retaining wall of the embankment is 1.0-6.6 m.
1. Miniature steel pipe pile construction
1) According to the green planting position of the roadside, positioning the position of the outermost miniature steel pipe pile 4, constructing the miniature steel pipe pile 4 from the outside to the inside, constructing adjacent two drilling holes along the direction of the road at intervals of not less than 5 drilling holes, simultaneously hanging a guest grid 8 on the outer side of the vertical retaining wall 1 of the existing embankment, forming holes on the current road surface 1 by adopting an engineering geological drilling machine, wherein the hole diameter is 250mm, the verticality deviation is less than 0.5%, and the pile position deviation is less than 10mm; hole jumping construction is carried out during drilling, at least 5 rows of holes are drilled between two adjacent rows of construction holes, and mud is adopted for hole cleaning after hole forming;
2) After pile hole forming, a phi 140x4.5 steel pipe is put down, and a phi 25PVC grouting pipe is put down together with the steel pipe;
3) Grouting at normal pressure, wherein the grouting pressure is not less than 0.6MPa, and grouting adopts cement slurry with P.O, 42.5R composite silicate cement and water cement ratio of 0.4-0.5;
4) Repeating the steps 1-4 until all the miniature steel pipe piles 4 are constructed.
2. Manufacturing of L-shaped channel steel member
1) The channel steel is subjected to corrosion-resistant treatment such as rust removal and the like before use.
2) Assembling and welding channel steel according to the required length of the L-shaped channel steel member 5 to form the L-shaped channel steel member 5;
3) Spraying anticorrosion liquid or paint before installation.
3. Existing embankment upright retaining wall reinforcement construction
1) After the construction of the miniature steel pipe pile 4 is completed, excavating the pavement to the roof pressing plate 9 or the current pavement 1 bottom elevation in a sectional manner; a groove 6 for installing the L-shaped channel steel member 5 is excavated between green plants on the wall top of the existing embankment upright retaining wall 1, and a base pit 7 for installing the L-shaped channel steel member 5 is excavated on the wall bottom of the existing embankment upright retaining wall 1.
2) Installing the welded L-shaped channel steel member 5,L type channel steel member 5 to be clung to the existing embankment upright retaining wall 1 as much as possible; and (3) pouring concrete on the base, and backfilling and compacting the groove 6 on the wall top of the existing embankment upright retaining wall 1 (the excavated old existing embankment upright retaining wall is repaired by C25 concrete).
3) Repeating the steps 1 and 2, and after the installation of part of the L-shaped channel steel members 5, pouring the pressing plate 9 in a segmented manner; repeating the steps to finish the installation of the L-shaped channel steel member 5 and the pouring of the pressing plate 9; and finally repairing the road. 100 thick concrete is sprayed when the conditions outside the vertical retaining wall of the existing embankment allow.
Claims (8)
1. The method for reinforcing and supporting the existing embankment upright retaining wall is characterized by comprising the following steps of:
s1: construction of a miniature steel pipe pile:
1) The current road surface is in the north-south trend, the existing embankment upright retaining wall is positioned at the east side of the current road surface, an engineering geological drilling machine is adopted to form holes on the current road surface, and mud is adopted to clear the holes after the holes are formed;
2) After the pile hole is formed, a micro steel pipe pile is put down, and a phi 25PVC grouting pipe is put down together with the micro steel pipe pile;
3) Grouting at normal pressure, wherein the grouting pressure is not less than 0.6MPa;
4) Repeating the steps 1) to 3) until all the miniature steel pipe piles are constructed;
s2: manufacturing an L-shaped channel steel member:
1) Rust removal and corrosion prevention treatment is carried out on the channel steel before use;
2) Assembling and welding channel steel to form an L-shaped channel steel member according to the length of the required L-shaped channel steel member;
3) Spraying anticorrosion liquid or anticorrosion paint before installation;
s3: the existing embankment upright retaining wall reinforcement construction:
1) After the construction of the miniature steel pipe piles is completed, excavating the current road surface to the bottom elevation in a sectionalized mode, excavating a pressing top plate pouring area at the current road surface bottom elevation, excavating a groove for installing an L-shaped channel steel member between green plants on the vertical retaining wall top of the existing embankment, and excavating a base pit for installing the L-shaped channel steel member at the vertical retaining wall bottom of the existing embankment;
2) Inversely installing a welded L-shaped channel steel member, tightly attaching the L-shaped channel steel member to an existing embankment upright retaining wall, arranging one end of the L-shaped channel steel member in a base pit, arranging the other end of the L-shaped channel steel member in a roof pressing plate pouring area, pouring concrete into the base pit, and backfilling and compacting a groove on the wall top of the existing embankment upright retaining wall;
3) Repeating the steps 1) and 2), and pouring a pressing plate in sections after the installation of part of the L-shaped channel steel members; repeating the steps to finish the installation of the L-shaped channel steel member and the pouring of the pressing plate; and finally repairing the road.
2. The method for reinforcing and supporting the vertical retaining wall of the existing embankment according to claim 1, wherein the position of the outermost miniature steel pipe pile is positioned according to the current green planting position of the road surface when the holes are formed in the step 1) of the step 1), the miniature steel pipe pile is constructed from the outer side to the inner side, meanwhile, the guest grid is hung on the outer side of the vertical retaining wall of the existing embankment, 8 rows of holes are constructed on the road surface along the axial direction of the road surface, wherein the spacing between 3 rows close to the vertical retaining wall of the existing embankment is 0.6m, and the spacing between other rows is 1.2m.
3. The method for reinforcing and supporting the upright retaining wall of the existing embankment according to claim 2, wherein the pore diameter of the pore in the step 1) of the step S1) is 250mm, the perpendicularity deviation is less than 0.5%, the pile position deviation is less than 10mm, and the construction of jumping holes during drilling is performed.
4. The method for reinforcing and supporting an existing embankment upright retaining wall according to claim 3, wherein the mini steel pipe pile in the step 2) of the step S1 is a Φ140x4.5 steel pipe.
5. The method for reinforcing and supporting the vertical retaining wall of the existing embankment according to claim 4, wherein the grouting in the step 3) of the step S1 is carried out by adopting cement slurry with P.O 42.5.42.5R composite Portland cement and a water cement ratio of 0.4-0.5, and the grouting pressure is not less than 0.6MPa.
6. The method for reinforcing and supporting the vertical retaining wall of the existing embankment according to claim 1, wherein the C25 concrete is adopted in the step 2) of the step S3 to backfill and compact the grooves on the vertical retaining wall of the existing embankment.
7. The method for reinforcing and supporting the upright retaining wall of the existing embankment according to claim 3, wherein the excavating and pouring construction range of the medium-pressure roof in the step S3 is a miniature steel pipe pile area with the spacing of 0.6m close to 3 rows of the upright retaining wall side of the existing embankment.
8. The method for reinforcing and supporting the vertical retaining wall of the existing embankment according to claim 1, wherein 100-thickness concrete is sprayed on the outer side of the vertical retaining wall of the existing embankment after the construction in the step 3) of the step 3 is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210960797.4A CN115198790B (en) | 2022-08-11 | 2022-08-11 | Existing embankment upright retaining wall reinforcing and supporting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210960797.4A CN115198790B (en) | 2022-08-11 | 2022-08-11 | Existing embankment upright retaining wall reinforcing and supporting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115198790A CN115198790A (en) | 2022-10-18 |
| CN115198790B true CN115198790B (en) | 2023-11-07 |
Family
ID=83585313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210960797.4A Active CN115198790B (en) | 2022-08-11 | 2022-08-11 | Existing embankment upright retaining wall reinforcing and supporting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115198790B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115748418A (en) * | 2022-11-25 | 2023-03-07 | 广州机施建设集团有限公司 | Forest trestle construction method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110052338A (en) * | 2009-11-12 | 2011-05-18 | 임철 | Construction method of block of wall using steel pipe pile |
| JP2012026250A (en) * | 2010-07-22 | 2012-02-09 | Iritech Co Ltd | Reinforcement structure and reinforcement method of existing retaining wall |
| CN202450485U (en) * | 2012-01-10 | 2012-09-26 | 上海友为工程设计有限公司 | Sheet pile-reinforced flood control wall |
| CN107435335A (en) * | 2017-09-15 | 2017-12-05 | 上海建工建集团有限公司 | Brick retaining wall steel bar girder hardened system and method on foundation pit enclosure top beam |
| CN109958101A (en) * | 2019-04-23 | 2019-07-02 | 上海勘测设计研究院有限公司 | Reinforcement of retaining wall for heightening and consolidation original retaining wall |
| 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 |
| CN112049149A (en) * | 2020-09-04 | 2020-12-08 | 中铁四院集团南宁勘察设计院有限公司 | Reinforced retaining wall structure and construction method thereof |
| CN112832287A (en) * | 2021-02-03 | 2021-05-25 | 江苏熙利建设有限公司 | Inclined retaining wall |
-
2022
- 2022-08-11 CN CN202210960797.4A patent/CN115198790B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110052338A (en) * | 2009-11-12 | 2011-05-18 | 임철 | Construction method of block of wall using steel pipe pile |
| JP2012026250A (en) * | 2010-07-22 | 2012-02-09 | Iritech Co Ltd | Reinforcement structure and reinforcement method of existing retaining wall |
| CN202450485U (en) * | 2012-01-10 | 2012-09-26 | 上海友为工程设计有限公司 | Sheet pile-reinforced flood control wall |
| CN107435335A (en) * | 2017-09-15 | 2017-12-05 | 上海建工建集团有限公司 | Brick retaining wall steel bar girder hardened system and method on foundation pit enclosure top beam |
| CN109958101A (en) * | 2019-04-23 | 2019-07-02 | 上海勘测设计研究院有限公司 | Reinforcement of retaining wall for heightening and consolidation original retaining wall |
| 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 |
| CN112049149A (en) * | 2020-09-04 | 2020-12-08 | 中铁四院集团南宁勘察设计院有限公司 | Reinforced retaining wall structure and construction method thereof |
| CN112832287A (en) * | 2021-02-03 | 2021-05-25 | 江苏熙利建设有限公司 | Inclined retaining wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115198790A (en) | 2022-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108343071A (en) | A kind of foundation pit supporting construction and construction method of steel sheet pile combined deposited pile | |
| CN104110038A (en) | Construction method for large-area pit support structure in deep-sludge type soft soil area | |
| CN111236260A (en) | Variable-rigidity combined type prefabricated double-row pile supporting structure and construction method thereof | |
| CN115198790B (en) | Existing embankment upright retaining wall reinforcing and supporting method | |
| CN114411756A (en) | Construction method and construction device for water-rich sand layer subway station open excavation foundation pit without precipitation | |
| CN112681374A (en) | Shallow-buried underground-excavated channel cover excavation top-down construction method under complex conditions | |
| CN101838957A (en) | Integral type T-shaped outer cantilever roads and construction method thereof | |
| CN103215958A (en) | Construction method of dewatering and retaining and protecting of deep foundation pit in expansive-soil area | |
| CN110117959B (en) | Construction method for foundation pit support near river | |
| CN211873034U (en) | Box-type buckling steel pile supporting structure | |
| CN209760299U (en) | light and shade of avoiding house to tear open and move is dug and is combined subway station structure | |
| CN113308954B (en) | Construction method of anchor rod foam concrete widening roadbed | |
| CN216194772U (en) | Foundation pit supporting and water stopping system | |
| CN115506382A (en) | Construction method for pile plate wall of island building platform | |
| CN211228521U (en) | Frame bridge supporting construction | |
| CN113684835A (en) | Foundation pit supporting and water stopping system and construction process | |
| CN210459300U (en) | Enclosure structure for covering and digging station | |
| CN208023591U (en) | A kind of foundation pit supporting construction of steel sheet pile combined deposited pile | |
| CN112609731A (en) | Flexible permeable cutting retaining wall and construction method | |
| CN112302678A (en) | Deformation control construction process for shallow tunnel of underpass building | |
| CN109778870A (en) | A kind of support system construction method of deep basal pit | |
| CN219158994U (en) | Deep soft soil area ultra-deep large-diameter round pipe jacking working well foundation pit supporting structure | |
| CN219410378U (en) | Rock slope overhanging type road structure | |
| CN219568892U (en) | Old cohesive soil stratum box culvert foundation pit supporting structure close to house | |
| CN211973510U (en) | Steel sheet pile and root pile composite foundation pit supporting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |