CN113513015A - Semi-prefabricated concrete reinforcement cage underground continuous wall and construction method - Google Patents
Semi-prefabricated concrete reinforcement cage underground continuous wall and construction method Download PDFInfo
- Publication number
- CN113513015A CN113513015A CN202110892947.8A CN202110892947A CN113513015A CN 113513015 A CN113513015 A CN 113513015A CN 202110892947 A CN202110892947 A CN 202110892947A CN 113513015 A CN113513015 A CN 113513015A
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- reinforcement cage
- concrete
- semi
- continuous wall
- 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.)
- Pending
Links
- 230000002787 reinforcement Effects 0.000 title claims abstract description 94
- 239000004567 concrete Substances 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000011372 high-strength concrete Substances 0.000 claims abstract description 23
- 230000003487 anti-permeability effect Effects 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004576 sand Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 1
Images
Classifications
-
- 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
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
Landscapes
- 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)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a semi-prefabricated concrete reinforcement cage underground continuous wall and a construction method thereof. The continuous wall is clamped by high-strength concrete at two sides, so that the deformation of the reinforcement cage in the hoisting process is prevented; the semi-prefabricated reinforcement cages are connected by the clamping grooves, so that the problems of water leakage and misalignment at the joints are effectively prevented; the adopted high-strength concrete greatly improves the bearing capacity and the anti-permeability of the underground continuous wall, and the underground continuous wall is used as a part of the foundation and the structure of a building; the wall of the underground continuous wall is smooth, and the wall is continuous and level. The construction method has the advantages of high construction safety, reliable engineering quality, strong anti-permeability capability and good economical efficiency.
Description
Technical Field
The invention relates to the technical field of civil engineering construction, in particular to a semi-prefabricated concrete reinforcement cage underground continuous wall and a construction method.
Background
Underground continuous walls are often used as a diaphragm wall and a temporary retaining wall, and are increasingly used as a part of foundations and structures of buildings and as a main structure through years of development and use and technological, equipment and material innovations. The underground continuous wall adopts a grooving machine, under the protection of a guide wall and slurry, a unit groove section is dug along the central axis of the guide wall, after the groove is cleaned, a crane is used for placing a prefabricated reinforcement cage into the unit groove according to the expected position, and concrete is used for pouring to form the unit wall. And sequentially, a continuous reinforced concrete wall can be built underground.
When the steel reinforcement cage is hoisted during the construction of the traditional underground continuous wall, the steel reinforcement cage is easy to deform, the hoisting and installation are difficult, and the construction safety is difficult to guarantee; in order to guarantee the impermeability requirement, waterproof concrete must be poured; the wall is rough and is not suitable for a part of a foundation and a structure, and when the construction geological condition is special, the problems that adjacent wall sections cannot be aligned and water leakage often occur.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a semi-prefabricated concrete reinforcement cage underground continuous wall and a construction method thereof.
The technical scheme for realizing the purpose of the invention is as follows:
the utility model provides a half prefabricated formula concrete reinforcement cage underground continuous wall, includes the steel reinforcement cage, and the fixed prefabricated super high performance concrete panel of both sides face of steel reinforcement cage obtains half prefabricated formula steel reinforcement cage, and adjacent half prefabricated formula steel reinforcement cage adopts the draw-in groove to connect, in the unit cell after opening and removing the foundation with its hoist and mount, behind the steel reinforcement cage pouring ordinary concrete between the concrete panel of each half prefabricated formula steel reinforcement cage, forms underground continuous wall.
The concrete panel has the compressive strength of more than 150MPa and the impermeability grade of more than or equal to P10.
The clamping groove is an I-shaped clamping groove.
A construction method of a semi-prefabricated high-strength concrete reinforcement cage underground continuous wall comprises the following steps:
1) planning a lead, building a guide wall, and mining a unit groove by using a groover;
2) designing a reinforcement cage and a prefabricated panel according with the size of the unit groove according to the size of the unit groove;
3) the high-strength concrete is adopted, panels are prefabricated in a component factory, and after the concrete panels are formed, the prefabricated panels are fixed on two side surfaces of a reinforcement cage to form a semi-prefabricated reinforcement cage;
4) cleaning the inside of the unit groove, and placing the vertical end face of the prefabricated semi-prefabricated reinforcement cage into the unit groove by a crane along the clamping groove of the end face of the other constructed underground continuous wall, so that the adjacent semi-prefabricated reinforcement cages are connected by the clamping groove, and the position of the semi-prefabricated reinforcement cage is fixed;
5) and after the common concrete is poured into the reinforcement cage between the concrete panels of each semi-prefabricated reinforcement cage by adopting the concrete, the underground continuous wall is formed, and the operation of the underground continuous wall can be completed.
And step 1), designing and constructing the guide wall according to the standard and specification of the underground continuous wall construction process, wherein the size of the unit groove meets the requirement.
In the step 3), the high-strength concrete has the compressive strength of 100MPa in 3 days, 130MPa in 7 days and 150MPa in 28 days, and the anti-permeability grade of the high-strength concrete is not less than P10.
In the step 3), the high-strength concrete panels are all prefabricated and poured in factories, standardized construction maintenance is adopted, the pouring thickness is 5-8cm, the outer surface is smooth, and the inner side is provided with fixed steel bars.
And 4), fixing and installing the semi-prefabricated reinforcement cage with the deviation less than 1cm, and fixing by filling the prefabricated concrete block.
And 4), putting the semi-prefabricated reinforcement cage into the unit groove and simultaneously clamping the semi-prefabricated reinforcement cage into the clamping groove of the finished unit wall, and when the semi-prefabricated reinforcement cage is lifted and put down, controlling the position of the semi-prefabricated reinforcement cage by using a rope by a professional and slowly putting the semi-prefabricated reinforcement cage into the clamping groove.
The invention provides a semi-prefabricated high-strength concrete reinforcement cage underground continuous wall and a construction method thereof, and the semi-prefabricated high-strength concrete reinforcement cage underground continuous wall has the following advantages:
1. according to the requirements of the steel reinforcement cage and the lifting machine, the high-strength concrete at two sides is clamped, so that the steel reinforcement cage can be prevented from deforming in the lifting process;
2. the semi-prefabricated reinforcement cage is connected by the clamping grooves, so that the problems of water leakage, misalignment and the like at the interface can be effectively prevented;
3. the high-strength concrete adopted by the invention can greatly improve the bearing capacity and the anti-permeability capacity of the underground continuous wall, and can enable the underground continuous wall to be used as a part of the foundation and the structure of a building;
4. the invention adopts the semi-prefabricated reinforcement cage to ensure that the wall of the underground continuous wall is flat, and the wall is continuous and level.
5. The semi-prefabricated underground continuous wall panel has high anti-permeability performance, and can avoid pouring waterproof concrete into the reinforcement cage.
Drawings
FIG. 1 is a schematic view of a semi-prefabricated reinforcement cage;
FIG. 2 is a schematic view of a semi-prefabricated reinforcement cage connected by a slot;
FIG. 3 is a construction axial sectional view of a semi-prefabricated reinforcement cage in a unit groove;
FIG. 4 is a cross-sectional view of a semi-prefabricated reinforcement cage in the construction of unit slots;
in the figure: 1. the steel reinforcement cage 2, the concrete panel 3, the clamping groove 4, the groove wall 5 of the unit groove, the guide wall 6, the reserved gap 7, the crane 8 and the underground continuous wall.
Detailed Description
The invention will be further elucidated with reference to the drawings and examples, without however being limited thereto.
Example (b):
as shown in fig. 1 and 2, a semi-prefabricated formula concrete steel reinforcement cage underground continuous wall, including steel reinforcement cage 1, precast concrete panel 2 is installed to the both sides face of steel reinforcement cage 1, obtains semi-prefabricated formula steel reinforcement cage, and adjacent semi-prefabricated formula steel reinforcement cage adopts draw-in groove 3 to connect, behind the steel reinforcement cage 1 pouring concrete between the concrete panel 2 to each semi-prefabricated formula steel reinforcement cage, forms underground continuous wall 8.
The compressive strength of the concrete panel is more than 150 MPa.
The clamping groove is an I-shaped clamping groove.
As shown in fig. 3 and 4, a construction method of a semi-prefabricated type high-strength concrete reinforcement cage underground continuous wall includes the following steps:
1) planning a lead, building a guide wall, and mining a unit groove by using a groover;
2) designing a reinforcement cage conforming to the size of the unit groove according to the size of the unit groove, installing prefabricated ultrahigh-performance concrete panels on two side surfaces of the reinforcement cage by adopting high-strength concrete, removing a mold after the concrete panels are prefabricated and molded in a factory, maintaining the concrete panels according to a standard, and transporting the concrete panels to a site for installation to obtain a semi-prefabricated reinforcement cage;
3) cleaning the inside of each unit groove, using equipment to detect the inner wall of each groove to be qualified, then using a crane to place the vertical end face of the prefabricated semi-prefabricated reinforcement cage into the unit groove along the clamping groove of the end face of the other constructed underground continuous wall, connecting the adjacent semi-prefabricated reinforcement cages by using the clamping grooves, and performing the next operation after checking whether the semi-prefabricated reinforcement cages are stable or not;
4) after the positions of the semi-prefabricated high-strength concrete reinforcement cages are aligned, backfilling a gap between the wall of the unit groove and the semi-prefabricated reinforcement cage along two sides of the guide wall, and fixing the positions of the semi-prefabricated reinforcement cages;
5) and after concrete is poured into the reinforcement cage between the concrete panels of each semi-prefabricated reinforcement cage, the underground continuous wall is formed, and the operation of the underground continuous wall can be completed.
And step 1), designing and constructing the guide wall according to the standard and specification of the underground continuous wall construction process, wherein the size of the unit groove meets the requirement.
In the step 3), the high-strength concrete has the compressive strength of 100MPa in 3 days, 130MPa in 7 days and 150MPa in 28 days, and the anti-permeability grade of the high-strength concrete is not less than P10.
In the step 3), the high-strength concrete panels are all prefabricated and poured in factories, standardized construction maintenance is adopted, the pouring thickness is 5-8cm, the outer surface is smooth, and the inner side is provided with fixed steel bars.
And 4), fixing and installing the semi-prefabricated reinforcement cage with the deviation less than 1cm, and fixing by filling the prefabricated concrete block.
And 4), putting the semi-prefabricated reinforcement cage into the unit groove and simultaneously clamping the semi-prefabricated reinforcement cage into the clamping groove of the finished unit wall, and when the semi-prefabricated reinforcement cage is lifted and put down, controlling the position of the semi-prefabricated reinforcement cage by using a rope by a professional and slowly putting the semi-prefabricated reinforcement cage into the clamping groove.
In the step 4), the gap is convenient for placing the semi-prefabricated reinforcement cage into the unit groove, and the width of the gap is less than 1 cm; backfilling sand and fixing the backfilled sand by using a concrete block to prevent the semi-prefabricated reinforcement cage from deviating and swinging during pouring.
Claims (7)
1. The utility model provides a half prefabricated formula concrete reinforcement cage underground continuous wall, its characterized in that includes the steel reinforcement cage, and the both sides face of steel reinforcement cage is fixed prefabricated concrete panel respectively, obtains half prefabricated formula steel reinforcement cage, and adjacent half prefabricated formula steel reinforcement cage adopts the draw-in groove to connect, in the unit cell after opening well and removing the basis with its hoist and mount, behind the steel reinforcement cage pouring concrete between the concrete panel to each half prefabricated formula steel reinforcement cage, forms underground continuous wall.
2. The semi-prefabricated concrete reinforcement cage underground continuous wall as claimed in claim 1, wherein the concrete panel has a compressive strength of more than 150MPa and an impermeability grade of not less than P10.
3. The semi-prefabricated concrete reinforcement cage underground continuous wall as claimed in claim 1, wherein the clamping grooves are I-shaped clamping grooves.
4. A construction method of a semi-prefabricated high-strength concrete reinforcement cage underground continuous wall is characterized by comprising the following steps:
1) planning a lead, building a guide wall, and mining a unit groove by using a groover;
2) designing a reinforcement cage and a prefabricated panel according with the size of the unit groove according to the size of the unit groove;
3) the concrete is adopted, the panels are prefabricated in a component factory, and after the concrete panels are formed, the prefabricated panels are fixed on two side surfaces of the reinforcement cage to form the semi-prefabricated reinforcement cage;
4) cleaning the inside of the unit groove, and placing the vertical end face of the prefabricated semi-prefabricated reinforcement cage into the unit groove by a crane along the clamping groove of the end face of the other constructed underground continuous wall, so that the adjacent semi-prefabricated reinforcement cages are connected by the clamping groove, and the position of the semi-prefabricated reinforcement cage is fixed;
5) and after the common concrete is poured into the reinforcement cage between the concrete panels of each semi-prefabricated reinforcement cage by adopting the concrete, the underground continuous wall is formed, and the operation of the underground continuous wall can be completed.
5. The construction method of the semi-prefabricated type high-strength concrete reinforcement cage underground continuous wall as claimed in claim 4, wherein in the step 3), the concrete is high-strength concrete with the compressive strength of 100MPa in 3 days, 130MPa in 7 days and 150MPa in 28 days, and the anti-permeability grade of the concrete is not less than P10.
6. The construction method of the semi-prefabricated type high-strength concrete reinforcement cage underground continuous wall according to claim 4, wherein in the step 3), the high-strength concrete panels are all prefabricated and cast in a factory, standard construction maintenance is adopted, the casting thickness is 5-8cm, the outer surface is smooth, and fixing steel bars are arranged on the inner side.
7. The construction method of the semi-prefabricated type high-strength concrete reinforcement cage underground continuous wall as claimed in claim 4, wherein in the step 4), the fixed installation deviation of the semi-prefabricated type reinforcement cage is less than 1cm, and the semi-prefabricated type reinforcement cage is fixed by filling prefabricated concrete blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110892947.8A CN113513015A (en) | 2021-08-04 | 2021-08-04 | Semi-prefabricated concrete reinforcement cage underground continuous wall and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110892947.8A CN113513015A (en) | 2021-08-04 | 2021-08-04 | Semi-prefabricated concrete reinforcement cage underground continuous wall and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113513015A true CN113513015A (en) | 2021-10-19 |
Family
ID=78069084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110892947.8A Pending CN113513015A (en) | 2021-08-04 | 2021-08-04 | Semi-prefabricated concrete reinforcement cage underground continuous wall and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113513015A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981948A (en) * | 2021-12-06 | 2022-01-28 | 上海建工一建集团有限公司 | Reverse construction method adopting prefabricated underground continuous wall |
| CN114197448A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight double-sided superposed prefabricated underground continuous wall and construction method thereof |
| CN114197447A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight single-side superposed prefabricated underground continuous wall and construction method thereof |
| CN114808696A (en) * | 2022-05-07 | 2022-07-29 | 广西欣港交通投资有限公司 | Prefabricated and cast-in-place combined anchorage foundation enclosure structure and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836191A (en) * | 2017-01-20 | 2017-06-13 | 中国建筑第四工程局有限公司 | The construction method of subway building enclosure ground-connecting-wall under a kind of low clearance |
| CN107675700A (en) * | 2017-09-30 | 2018-02-09 | 中煤地质工程总公司北京分公司 | The construction method of diaphram wall |
| CN107687166A (en) * | 2017-10-18 | 2018-02-13 | 太原理工大学 | Diaphram wall is anti-to stream, water-impervious I-shaped steel joint structure and construction method |
| CN109826184A (en) * | 2019-02-18 | 2019-05-31 | 常州工学院 | Diaphram wall lap guard gummosis pipe combines jointing and construction method with H profile steel |
| CN213233403U (en) * | 2020-08-25 | 2021-05-18 | 武汉安振岩土工程有限公司 | Steel connecting piece of underground continuous wall and underground continuous wall |
-
2021
- 2021-08-04 CN CN202110892947.8A patent/CN113513015A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836191A (en) * | 2017-01-20 | 2017-06-13 | 中国建筑第四工程局有限公司 | The construction method of subway building enclosure ground-connecting-wall under a kind of low clearance |
| CN107675700A (en) * | 2017-09-30 | 2018-02-09 | 中煤地质工程总公司北京分公司 | The construction method of diaphram wall |
| CN107687166A (en) * | 2017-10-18 | 2018-02-13 | 太原理工大学 | Diaphram wall is anti-to stream, water-impervious I-shaped steel joint structure and construction method |
| CN109826184A (en) * | 2019-02-18 | 2019-05-31 | 常州工学院 | Diaphram wall lap guard gummosis pipe combines jointing and construction method with H profile steel |
| CN213233403U (en) * | 2020-08-25 | 2021-05-18 | 武汉安振岩土工程有限公司 | Steel connecting piece of underground continuous wall and underground continuous wall |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197448A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight double-sided superposed prefabricated underground continuous wall and construction method thereof |
| CN114197447A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight single-side superposed prefabricated underground continuous wall and construction method thereof |
| CN113981948A (en) * | 2021-12-06 | 2022-01-28 | 上海建工一建集团有限公司 | Reverse construction method adopting prefabricated underground continuous wall |
| CN114808696A (en) * | 2022-05-07 | 2022-07-29 | 广西欣港交通投资有限公司 | Prefabricated and cast-in-place combined anchorage foundation enclosure structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113513015A (en) | Semi-prefabricated concrete reinforcement cage underground continuous wall and construction method | |
| CN110486018B (en) | Lattice type composite shaft structure and construction method | |
| CN112127356A (en) | Assembled grid underground continuous wall of dry-type connection | |
| CN114150749A (en) | Construction method for non-stop connection of new and old sewage wells | |
| CN210263014U (en) | Underground continuous wall | |
| CN106930391B (en) | Cast-in-place drainage channel structure of top plate for formwork-free construction and construction method | |
| CN210117716U (en) | Trapezoidal foundation ditch lateral wall concrete typical forms of elevartor shaft | |
| CN210369766U (en) | Precast concrete fast-assembling exhaust pipe well structure | |
| CN104594389A (en) | Post-cast strip external wall plugging structure with elastic water stoppers | |
| CN210395436U (en) | Prefabricated moulding bed device | |
| CN112112295A (en) | Reinforcing construction method for post-cast strip of post-sealed outer wall | |
| CN116856386A (en) | Fully prefabricated underground continuous wall and construction method thereof | |
| CN114108694B (en) | Micro-disturbance anti-floating underground cylindrical structure and construction method thereof | |
| CN214784092U (en) | Foundation ditch relief well enclosed construction | |
| CN215716277U (en) | High-prefabrication shear wall structure with floor slab | |
| CN209798797U (en) | Prefabricated pump station pit shaft of integration | |
| CN114892674A (en) | Foundation pit supporting structure close to existing building and construction method thereof | |
| CN212452765U (en) | Two-in-one underground pipe gallery structure | |
| CN113235645A (en) | Tower crane foundation reserved joint bar assembly type forming die construction method | |
| CN102392459A (en) | Construction method for straight manhole | |
| CN215801751U (en) | Self-supporting mutually-buckled GRC prefabricated porous bearing platform side mold | |
| CN212506224U (en) | Shear wall structural member of underground continuous wall | |
| CN211547785U (en) | Large-volume assembly type ground tire mold | |
| CN212304531U (en) | Prefabricated assembled cable duct bank | |
| CN214143657U (en) | Assembled grid underground continuous wall of dry-type connection |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211019 |
|
| RJ01 | Rejection of invention patent application after publication |