CN209040138U - A kind of grooving foundation structure before construction of diaphragm wall - Google Patents
A kind of grooving foundation structure before construction of diaphragm wall Download PDFInfo
- Publication number
- CN209040138U CN209040138U CN201821370567.8U CN201821370567U CN209040138U CN 209040138 U CN209040138 U CN 209040138U CN 201821370567 U CN201821370567 U CN 201821370567U CN 209040138 U CN209040138 U CN 209040138U
- Authority
- CN
- China
- Prior art keywords
- zone
- belt
- plain concrete
- underground structure
- bottom plate
- 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
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses the grooving foundation structures before a kind of construction of diaphragm wall.It includes existing underground structure bottom plate, and the overlapping position of the existing underground structure bottom plate and diaphram wall forms the belt-like zone for running through existing underground structure bottom plate, and the belt-like zone pours plain concrete.The belt-like zone is divided into n section, and n is no less than 2, wherein all odd number sections composition first pours belt-like zone, all even number sections form post-cast strip shape region；The plain concrete be divided into first pour plain concrete and after pour plain concrete；It is described first pour plain concrete and pour formerly pour in each section of belt-like zone；Plain concrete is poured after described to be cast in each section in post-cast strip shape region.The utility model can meet going on smoothly and existing underground structure bottom plate being made to play the role of inner support always for slotter grooving during construction of diaphragm wall, guarantee that the underground structure of new projects is not damaged by soil pressure.
Description
Technical field
The utility model belongs to technical field of building construction, and in particular to the grooving ground before a kind of construction of diaphragm wall
Structure.
Background technique
In recent years, it as the project of reconstruction of the old city town is more and more, is met with using the diaphram wall of slotter mode grooving
The case where existing underground structure, is more and more.But according to the Trenching technology of existing slotter, slotter can not directly be abolished existing
(if slotter directly mills broken armored concrete, the reinforcing bar of old structure can be with milling for the reinforced concrete structure of underground structure bottom plate
Wheel stirs together, does not simply fail to construct, but also damage machine).
In addition, during Old building carries out Underground Construction being tied using " inner support+fender post " as underground
The retaining design of structure.By existing Underground Construction mode, reconstruction of the old city town project need to carry out interior with the construction of underground structure
" support replacement " of supporting beam, i.e., before the bracing demolition of existing underground structure, reinforced concrete inner support beam action, conversion
Effect at existing underground structure bottom plate as inner support, to guarantee the underground structure of reconstruction of the old city town project not by soil pressure masterpiece
With and damage.
Utility model content
The purpose of this utility model is to provide the grooving foundation structures before a kind of construction of diaphragm wall, can effectively solve
In place of the deficiencies in the prior art.
In order to achieve the above objectives, the utility model adopts the following technical solution:
A kind of grooving foundation structure before construction of diaphragm wall, including existing underground structure bottom plate, the existing underground
The overlapping position of structure base slab and diaphram wall forms the belt-like zone for running through existing underground structure bottom plate, the banded regions
Domain pours plain concrete.
Preferably, the width of the belt-like zone is greater than the thickness of the diaphram wall.
Further, the belt-like zone is divided into n section, and n is no less than 2, wherein all odd number sections composition first pours band
Shape region, all even number sections form post-cast strip shape region；The plain concrete be divided into first pour plain concrete and after pour plain coagulation
Soil；It is described first pour plain concrete and pour formerly pour in each section of belt-like zone；Plain concrete is poured after described is cast in post-cast strip
In each section in shape region.
Preferably, the length of each section is 3-6 meters.
Preferably, the strength grade of the plain concrete is greater than the strength grade of existing underground structure bottom plate.
The utility model can meet the suitable of slotter grooving during construction of diaphragm wall by using above structure
Benefit carries out, and existing underground structure bottom plate can be made to play the role of inner support always, guarantees the underground structure of new projects not by soil
Pressure is acted on and is damaged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the A-A of Fig. 1 to schematic cross-sectional view.
In figure:
1-proposed diaphram wall；21-existing underground structure bottom plates；22-existing underground structures go along with sb. to guard him campshed；23—
Existing underground structure armored concrete side wall；31-first pour belt-like zone；32-post-cast strips shape region；41-first pour plain coagulation
Soil；Plain concrete is poured after 42-.
The utility model is described in further detail now in conjunction with drawings and examples.
Specific embodiment
As depicted in figs. 1 and 2, the grooving foundation structure before a kind of construction of diaphragm wall described in the utility model is
It is formed on existing underground structure, which includes that existing underground structure bottom plate 21, existing underground structure are gone along with sb. to guard him
Campshed 22 and existing underground structure armored concrete side wall 23.The concrete construction method of the utility model is as follows:
Step 1: it according to the construction drawing of new projects, determines the position of proposed diaphram wall 1, finds out and existing underground
The part (for a belt-like zone) that structure base slab is overlapped, and carry out snap the line positioning.The width of belt-like zone is greater than the underground
The thickness of diaphragm wall.
Step 2: belt-like zone is divided into n section, n is no less than 2；The length of each section is 3-6 meters.Wherein institute
It is made of odd number section and first pours belt-like zone 31, all even number sections form post-cast strip shape region 32.
Step 3: it along the position line for each section bullet ink for first pouring belt-like zone 31, is bored with concrete core pulling and with pneumatic pick head
The equipment such as excavator make each section for first pouring belt-like zone 31 through existing underground structure bottom plate 21.
Step 4: it with the concrete of a strength grade higher than existing underground structure bottom plate, pours and first pours belt-like zone 31
Each section, make to be formed and first pour plain concrete 41.
Step 5: waiting and first pour after plain concrete 41 reaches 75% label intensity, each section bullet along post-cast strip shape region 32
The position line of ink runs through each section in post-cast strip shape region 32 with the equipment such as concrete core pulling brill and the excavator with pneumatic pick head
Existing underground structure bottom plate 21.
Step 6: with the concrete of a strength grade higher than existing underground structure bottom plate, post-cast strip shape region 32 is poured
Each section, make to pour plain concrete 42 after being formed.
Step 7: after being backfilled to levelling of the land face absolute altitude with cement plus clay, that is, it is continuous that slotter progress underground can be used
The normal construction operation of wall.
It should be noted that suitable swelling agent can be added in the plain concrete poured in the step 4 and six, reinforce element
The compactness of concrete；Also suitable early strength agent can be added, shorten the age of plain concrete.
The utility model by using above structure, can efficiently solve existing underground structure bottom plate 21 still with it is existing
Underground structure goes along with sb. to guard him campshed 22 and existing underground structure armored concrete side wall 23 together as the feelings of underground structure retaining design
Under condition, the diaphram wall 1 of new projects still can carry out construction operation by the construction drawing drafted.
Claims (3)
1. the grooving foundation structure before a kind of construction of diaphragm wall, which is characterized in that described including existing underground structure bottom plate
The overlapping position of existing underground structure bottom plate and diaphram wall forms the belt-like zone for running through existing underground structure bottom plate, institute
It states belt-like zone and pours plain concrete；
The width of the belt-like zone is greater than the thickness of the diaphram wall；
The belt-like zone is divided into n section, and n is no less than 2, wherein all odd number sections composition first pours belt-like zone, owns
Even number section forms post-cast strip shape region；The plain concrete be divided into first pour plain concrete and after pour plain concrete；It is described first to pour
Plain concrete, which pours, formerly to be poured in each section of belt-like zone；Each area that plain concrete is cast in post-cast strip shape region is poured after described
Duan Zhong.
2. the grooving foundation structure before a kind of construction of diaphragm wall according to claim 1, which is characterized in that Mei Gequ
The length of section is 3-6 meters.
3. the grooving foundation structure before a kind of construction of diaphragm wall according to claim 1, which is characterized in that the element
The strength grade of concrete is greater than the strength grade of existing underground structure bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821370567.8U CN209040138U (en) | 2018-08-23 | 2018-08-23 | A kind of grooving foundation structure before construction of diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821370567.8U CN209040138U (en) | 2018-08-23 | 2018-08-23 | A kind of grooving foundation structure before construction of diaphragm wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209040138U true CN209040138U (en) | 2019-06-28 |
Family
ID=67031488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821370567.8U Active CN209040138U (en) | 2018-08-23 | 2018-08-23 | A kind of grooving foundation structure before construction of diaphragm wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209040138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700238A (en) * | 2019-10-08 | 2020-01-17 | 上海建工一建集团有限公司 | Newly-built enclosure structure for existing basement extension and construction method thereof |
-
2018
- 2018-08-23 CN CN201821370567.8U patent/CN209040138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700238A (en) * | 2019-10-08 | 2020-01-17 | 上海建工一建集团有限公司 | Newly-built enclosure structure for existing basement extension and construction method thereof |
| CN110700238B (en) * | 2019-10-08 | 2024-05-28 | 上海建工一建集团有限公司 | Newly-built enclosure structure for expanding existing basement and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107435544A (en) | A kind of construction method of one-tunnel two-tracks composite lining shield tunnel internal structure | |
| CN101196116A (en) | Three-connected-arch tunnel double-side cavity construction method for soft geological | |
| CN106012960A (en) | Assembly type long piled wharf upper structure system and construction method thereof | |
| CN109440634A (en) | The prefabricated high strength concrete hollow bent cap structure that internal model can be taken off | |
| CN209040138U (en) | A kind of grooving foundation structure before construction of diaphragm wall | |
| CN107386246A (en) | A kind of lock chamber wall Construction Through Form on Traveler method | |
| CN205821975U (en) | A kind of assembling steel plate composite beam bridge based on bolted steel reinforced concrete combined bridge deck | |
| CN205135661U (en) | Support frame is pour to tunnel secondary | |
| CN202900288U (en) | Steel section skeleton combined structure of tunnel minor radius section lining pouring | |
| CN109594581A (en) | Cross a river segment pipe structure and its installation method | |
| CN108612049A (en) | A kind of bank-protection works construction uses the construction method of Integral Steel sliding-mode structure | |
| CN111271078B (en) | Construction method for assembling sectional longitudinal translation in prefabricated tunnel lining structure tunnel | |
| CN105442457B (en) | Construction structure and method for extending bridge floor plate bridge filled with fine sand | |
| CN207862964U (en) | A kind of land bearing platform construction system | |
| CN217325078U (en) | Bearing platform cofferdam system suitable for bridge pier restoration of existing bridge | |
| CN107034742B (en) | Precast slab track structure applied to circular tunnel and construction method | |
| CN109371851A (en) | More bed die head-shield support frame Channel Makers | |
| CN109397522A (en) | A kind of universal precast beam pedestal being applicable in Soft Clay and its construction method | |
| CN207740015U (en) | A kind of bored tunnel corrugated steel-mixed mud composite lining structure | |
| CN109372522B (en) | Construction method of complex overlapping tunnel for urban rail transit | |
| CN209243590U (en) | More bed die head-shield support frame Channel Makers | |
| CN208235535U (en) | A kind of H profile steel anchor pole composite pile-prefabricated board wall deep footing groove enclosing structure | |
| CN205804278U (en) | A kind of assembled long piled wharf superstructure system | |
| CN206887782U (en) | One kind is used for end bay cast-in-place construction bracket | |
| CN202055211U (en) | Concrete guardrail plate and mold thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510075 Guangzhou, Guangdong Province, Yuexiu District ring city, one of the East Road 476, 10-17 building Patentee after: Guangzhou Pearl River Construction Development Co., Ltd Address before: 510075 Guangzhou, Guangdong Province, Yuexiu District ring city, one of the East Road 476, 10-17 building Patentee before: GUANGZHOU RESIDENTIAL CONSTRUCTION DEVELOPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |