CN220352832U - Pit supporting structure in weak soil pit - Google Patents
Pit supporting structure in weak soil pit Download PDFInfo
- Publication number
- CN220352832U CN220352832U CN202321029448.7U CN202321029448U CN220352832U CN 220352832 U CN220352832 U CN 220352832U CN 202321029448 U CN202321029448 U CN 202321029448U CN 220352832 U CN220352832 U CN 220352832U
- Authority
- CN
- China
- Prior art keywords
- pit
- construction
- module
- wall body
- utility
- 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
- 239000002689 soil Substances 0.000 title claims abstract description 14
- 239000011449 brick Substances 0.000 claims abstract description 56
- 238000010276 construction Methods 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000009412 basement excavation Methods 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 8
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 238000009435 building construction Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model discloses a pit-in-pit supporting structure of a weak soil body, which is characterized in that: the high-pressure jet grouting pile (1) and the Lasen steel sheet pile (2) are used as pit-in-pit earthwork excavation maintenance support, a cushion layer (4) is arranged in a pit after pit-in-pit earthwork excavation construction, and a module brick wall body (3) is built at the pit-in-pit structure outline. The utility model solves the problems that the brick moulding bed of the traditional process is easy to deform or even collapse due to the influence of construction load or soil disturbance, and ensures the construction safety of pits in the pit; in view of the characteristics of high strength, high construction speed, environmental protection and the like of the modular brick, the utility model is convenient for site construction operation, saves time and labor and is environmental protection.
Description
Technical Field
The utility model relates to the field of building construction, in particular to a pit-in-pit supporting structure of a weak soil body pit.
Background
With the vigorous development of building construction technology, the underground space expansion needs are more vigorous. In the foundation pit construction process, pit-in-pit construction is often carried out, the existing pit-in-pit supporting structure is usually used for reinforcing soil by adopting high-pressure jet grouting piles, lasen steel sheet piles are combined for pit-in-pit earthwork excavation enclosure supporting, and after pit-in-pit earthwork excavation is completed, standard bricks are used for building pit-in-pit outlines, so that conditions are created for pit-in-pit steel bar binding and concrete construction. When the pit in the soft soil is constructed, the sensitivity of the soft soil to construction load is higher, and the pit in the pit formed by standard brick masonry has poor integrity, so that the brick moulding bed is easily deformed or even collapsed due to construction load or soil disturbance, and economic loss and casualties are caused.
Disclosure of Invention
The utility model aims to: aiming at the defects of the prior art, the utility model provides the weak soil pit in-pit supporting structure which is stable in structure and high in safety.
The technical scheme is as follows: according to the soft soil pit in-pit supporting structure, high-pressure jet grouting piles and Lassen steel sheet piles are used as pit in-pit earthwork excavation maintenance supports, a cushion layer is arranged in a pit after pit in-pit earthwork excavation construction, and a modular brick wall body is built at the pit in-pit structure outline.
Preferably, the module brick wall body is an integral body formed by combining module bricks with mutually-interlocked concave-convex groove structures on four sides.
Preferably, the horizontal direction of the module brick is provided with a horizontal direction reinforcing bar groove, and the horizontal direction of the module brick wall body is connected into a whole through reinforcing bars and concrete.
Preferably, the vertical direction of the module brick is provided with a vertical dowel bar grouting hole, and the vertical direction of the module brick wall body is connected into a whole through steel bars and concrete.
In the construction process, the model of the module bricks and the discharge quantity of each layer of module bricks are determined according to the pit structure size and the depth in the pit; measuring and paying off according to a design drawing, accurately positioning and placing a first-layer module brick, and then sequentially arranging an upper-layer module brick; in the module brick discharging process, the module bricks are sequentially arranged according to the uniform direction sequence, so that the concave-convex groove structures of the adjacent module bricks are firmly connected with each other, the horizontal reinforcing steel bars are arranged in the horizontal reinforcing steel bar grooves along with the layers, and the integrity of the wall is guaranteed. After the module bricks are discharged, the mode of additionally arranging supports or arranging reinforcing steel bars in the module bricks, pouring concrete or mortar and the like is selected according to the size and the design depth of the pits, so that the stability of the wall body is ensured.
In the construction process of the modular brick wall body, pointing construction is carried out on the modular brick wall body, pointing is carried out along with the building, and the pointing adopts cement and mortar with the proportion of 1:2, waterproof cement mortar; after the wall construction is completed, performing waterproof treatment according to design requirements, and then sequentially performing pit-in-pit structure steel bars and templates, and completing concrete pouring construction.
The beneficial effects are that: (1) The four sides of the module brick adopted by the module brick wall body are provided with the concave-convex groove structures which are mutually interlocked, and the module brick wall body can form a whole when being combined, so that the shearing resistance of the wall body is greatly improved. (2) The module brick adopted by the utility model is provided with the horizontal reinforcing steel bar groove and the vertical dowel steel grouting holes, a horizontal and longitudinal channel is formed after combined masonry, and the wall body can be connected into a whole after reinforcing steel bars are placed and concrete is poured, so that the integrity of the wall body is further improved. (3) The utility model solves the problems that the brick moulding bed of the traditional process is easy to deform or even collapse due to the influence of construction load or soil disturbance, and ensures the construction safety of pits in the pit; in view of the characteristics of high strength, high construction speed, environmental protection and the like of the modular brick, the utility model is convenient for site construction operation, saves time and labor and is environmental protection.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a schematic plan view of a modular tile according to the present utility model.
Fig. 3 is a schematic side elevation view of a modular tile of the present utility model.
In the figure: 1. high pressure jet grouting piles; 2. larson steel sheet piles; 3. a modular brick wall; 4. a cushion layer; 5. a concave-convex groove structure; 6. a horizontal reinforcing bar groove; 7. and grouting holes in the vertical direction.
Detailed Description
The technical scheme of the utility model is described in detail below through the drawings, but the protection scope of the utility model is not limited to the embodiments.
Example 1: a pit-in-pit supporting structure of a soft soil body is characterized in that a high-pressure jet grouting pile 1 and a Lasen steel sheet pile 2 are used for pit-in-pit earthwork excavation maintenance support, a cushion layer 4 is arranged in a pit after pit-in-pit earthwork excavation construction, and a modular brick wall body 3 is built at the pit-in-pit structure outline.
The module brick wall body 3 is formed by combining module bricks with mutually-interlocked concave-convex groove structures 5 on four sides. Determining the model number of the module bricks and the discharge quantity of each layer of module bricks according to the pit structure size and depth in the pit; measuring and paying off according to a design drawing, accurately positioning and placing a first-layer module brick, and then sequentially arranging an upper-layer module brick; in the module brick discharging process, the module bricks are sequentially arranged according to the uniform direction sequence, so that the concave-convex groove structures of the adjacent module bricks are firmly connected with each other.
The horizontal direction of the module brick is provided with a horizontal direction reinforcing bar groove 6, and the horizontal direction of the module brick wall body 3 is connected into a whole through reinforcing bars and concrete. The vertical direction of the module brick is provided with a vertical dowel bar grouting hole 7, and the vertical direction of the module brick wall body 3 is connected into a whole through steel bars and concrete. The horizontal reinforcing steel bars are placed in the horizontal reinforcing steel bar grooves 6 along with the layers, so that the integrity of the wall is ensured. After the module bricks are discharged, the mode of additionally arranging supports or arranging reinforcing steel bars in the module bricks, pouring concrete or mortar and the like is selected according to the size and the design depth of the pits, so that the stability of the wall body is ensured. In the construction process of the modular brick wall body, pointing construction is carried out on the modular brick wall body, pointing is carried out along with the building, and the pointing adopts cement and mortar with the proportion of 1:2, waterproof cement mortar; after the wall construction is completed, performing waterproof treatment according to design requirements, and then sequentially performing pit-in-pit structure steel bars and templates, and completing concrete pouring construction.
As described above, although the present utility model has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the utility model itself. Various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (1)
1. The utility model provides a weak soil body hole pit supporting construction which characterized in that: the high-pressure jet grouting piles (1) and Lasen steel sheet piles (2) are used for pit-in-pit earthwork excavation maintenance support, a cushion layer (4) is arranged in a pit after pit-in-pit earthwork excavation construction, and a module brick wall body (3) is built at the pit-in-pit structure outline;
the modular brick wall body (3) is an integral body formed by combining modular bricks with mutually-interlocked concave-convex groove structures (5) on four sides;
the horizontal direction of the module brick is provided with a horizontal direction reinforcing bar groove (6), and the horizontal direction of the module brick wall body (3) is connected into a whole through reinforcing bars and concrete;
the vertical direction of the module brick is provided with a vertical dowel bar grouting hole (7), and the vertical direction of the module brick wall body (3) is connected into a whole through steel bars and concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321029448.7U CN220352832U (en) | 2023-05-04 | 2023-05-04 | Pit supporting structure in weak soil pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321029448.7U CN220352832U (en) | 2023-05-04 | 2023-05-04 | Pit supporting structure in weak soil pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220352832U true CN220352832U (en) | 2024-01-16 |
Family
ID=89485145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321029448.7U Active CN220352832U (en) | 2023-05-04 | 2023-05-04 | Pit supporting structure in weak soil pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220352832U (en) |
-
2023
- 2023-05-04 CN CN202321029448.7U patent/CN220352832U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203654294U (en) | Foundation pit supporting structure used in reverse building method | |
| CN112554198B (en) | Construction method of deep foundation pit protection structure adjacent to high-rise building | |
| CN102635120A (en) | Supportless construction structure and supportless construction method for round deep base pit | |
| CN103938634B (en) | A kind of deep foundation pit supporting structure and construction method | |
| CN102864781A (en) | Foundation pit supporting method utilizing inclined piles | |
| CN111005387A (en) | Deep foundation pit prestress support replacement support construction method | |
| CN111501771B (en) | Application method of multi-elliptical-ring combined support in deep large-sludge foundation pit engineering | |
| CN216041201U (en) | Earlier prop and dig double-deck diagonal bracing foundation ditch enclosure system afterwards | |
| CN105064711A (en) | Method for constructing underground garage between residential buildings | |
| CN102220764B (en) | Construction method of deep foundation pit bracing system | |
| CN207211158U (en) | Assembled pile board wall foundation pit supporting construction | |
| CN113026816A (en) | Underpinning reverse-acting open caisson supporting structure for grouting reinforced soil body and construction method | |
| CN112523171A (en) | Effective connection structure for seepage prevention of earth and rockfill dam body and seepage prevention of dam foundation and construction method thereof | |
| CN220352832U (en) | Pit supporting structure in weak soil pit | |
| CN210216452U (en) | Old excavation supporting system reinforced structure | |
| CN113585336B (en) | Quick construction method of sinking type concrete mixing station in soft foundation environment | |
| CN110685283A (en) | Sandbar combined tile type foundation pit supporting structure and construction method thereof | |
| CN207062958U (en) | A kind of deep basal pit complexity some support combining structure | |
| CN114922195A (en) | Construction method of soft soil deep and large foundation pit adjacent to protected object | |
| CN114411758A (en) | Foundation pit support multi-shaft pressure-grouting pile construction process based on solid waste utilization | |
| CN113235645A (en) | Tower crane foundation reserved joint bar assembly type forming die construction method | |
| CN102505698A (en) | Soil mass supporting structure and construction method thereof | |
| CN102677679A (en) | Cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits | |
| CN114250784A (en) | Foundation pit enclosure system combining piles with inclined piles in support-first and excavation-later construction method | |
| CN104032732A (en) | Cast-in-place type prestress steel plate concrete pile, construction method thereof and support pile wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |