CN218813764U - Stress-maintaining type faces combination continuous pile wall supporting construction forever - Google Patents
Stress-maintaining type faces combination continuous pile wall supporting construction forever Download PDFInfo
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- CN218813764U CN218813764U CN202223587215.7U CN202223587215U CN218813764U CN 218813764 U CN218813764 U CN 218813764U CN 202223587215 U CN202223587215 U CN 202223587215U CN 218813764 U CN218813764 U CN 218813764U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
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Abstract
The utility model discloses a stress-maintaining type faces combination continuous pile wall supporting construction forever, including hole-in-hole support continuous pile wall, the top of hole-in-hole support continuous pile wall is equipped with concrete cushion, cushion layer and arrangement of reinforcement connecting plate layer from top to bottom in proper order, both ends are equipped with crown beam and fertile groove concrete layer respectively about the cushion layer; the thickness of the buffer cushion layer is 300-500mm, one end of the concrete cushion layer is flush with the left end of the crown beam, and the other end of the concrete cushion layer extends into the fertilizer tank concrete layer; the right end of the reinforcement connecting plate layer is flush with the right end of the fertilizer groove concrete layer; and plastering leveling layers are vertically distributed on the left side of the pit-in-pit supporting continuous pile wall. The utility model discloses practicality and functional strong, but wide application in geotechnical engineering construction technical field.
Description
Technical Field
The utility model relates to a geotechnical engineering construction technical field specifically indicates a stress-maintaining type faces combination continuous pile wall supporting construction forever.
Background
With the demand of urban planning and development, urban super high-rise houses and super high-rise complex buildings are more and more, due to the complexity of the surrounding environment of the urban central area building, the side line of the building is generally adjacent to the red line of the land, the buried depth range below the ground of the red line is generally an important pipeline or an urban subway line, and the ground is an important building. The foundation of the urban super high-rise residence and the super high-rise complex building is buried deeply, so that the excavation depth of the pit-in-pit is deepened, the stability and the safety of an original foundation pit supporting structure are easily influenced when the earth and stone side of the pit-in-pit is excavated and put on a slope, and a building (a structure) outside the supporting structure is further influenced.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model provides a device to big underground structure influence when can solving the excavation of hole well.
The utility model provides a technical scheme does:
a stress-maintaining type permanent-temporary combined continuous pile wall supporting structure comprises a pit-in-pit supporting continuous pile wall, wherein a concrete cushion layer, a cushion pad layer and a reinforcement connecting plate layer are sequentially arranged at the top of the pit-in-pit supporting continuous pile wall from top to bottom, and the left end and the right end of the cushion pad layer are respectively provided with a crown beam and a fertilizer tank concrete layer; the thickness of the buffer cushion layer is 300-500mm, one end of the concrete cushion layer is flush with the left end of the crown beam, and the other end of the concrete cushion layer extends into the fertilizer tank concrete layer; the right end of the reinforcement connecting plate layer is flush with the right end of the fertilizer groove concrete layer; and plastering leveling layers are vertically distributed on the left side of the pit-in-pit supporting continuous pile wall.
Preferably, the foundation pit supporting structure further comprises a foundation pit supporting mechanism, wherein the foundation pit supporting mechanism is arranged in a columnar shape, and a prestressed anchor cable connected through an anchor head is arranged on the foundation pit supporting mechanism.
Preferably, the left side of the foundation pit supporting mechanism is fixedly connected with a concrete layer of the fertilizer trough; the prestressed anchor cables are arranged in a plurality of numbers and are distributed on the foundation pit supporting mechanism at intervals in parallel.
Preferably, a steel bar mesh is arranged in the plastering leveling layer.
Preferably, the cushion pad layer is made of graded sand.
Compared with the prior art, the utility model the advantage lie in:
through adopting the utility model provides a method is under construction, and adopts the utility model provides a technical scheme implements to the not influenced problem of big excavation supporting stability and basic bearing capacity when having solved foundation plate earthwork excavation in the large-scale deep basal pit, can ensure the stability and the security of big excavation supporting construction during the excavation of hole in the hole through this method, simultaneously, also can ensure the bearing capacity requirement of foundation soil in the foundation plate scope.
Drawings
Fig. 1 is a first cross-sectional view of a pit-in-pit supporting structure in an embodiment of the present invention;
fig. 2 is a sectional view of a pit-in-pit supporting structure in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to fig. 1 and 2.
A stress-maintaining type permanent temporary combined continuous pile wall supporting structure comprises a pit-in-pit supporting continuous pile wall 1, wherein a concrete cushion layer 2, a cushion layer 3 and a reinforcement connecting plate layer 4 are sequentially arranged on the top of the pit-in-pit supporting continuous pile wall 1 from top to bottom, and a crown beam 5 and a fertilizer groove concrete layer 6 are respectively arranged at the left end and the right end of the cushion layer 3; wherein the thickness of the buffer cushion layer 3 is 300-500mm, one end of the concrete cushion layer 2 is flush with the left end of the crown beam 5, and the other end of the concrete cushion layer 2 extends into the fertilizer trough concrete layer 6; the right end of the reinforcement connecting plate layer 4 is flush with the right end of the fertilizer groove concrete layer 6; and a plastering leveling layer 7 is vertically distributed on the left side of the pit-in-pit supporting continuous pile wall 1.
The pit-in-pit supporting continuous pile wall 1 needs to be constructed after a large foundation pit is excavated to the large surface elevation of the pit bottom, the pit-in-pit supporting continuous pile wall 1 is constructed by adopting secant piles, single-row cantilevers or double-row cantilevers are arranged according to the depth of a pit-in-pit, the secant piles are cast-in-situ piles, and the secant piles are formed by interlocking reinforced concrete piles and plastic concrete piles at intervals. The setting of concrete cushion 2 conveniently realizes waterproof construction's function.
The pit-in-pit supporting continuous pile wall 1, the top crown beam 5 and the reinforcement connecting plate layer 4 are constructed, earth and stone excavation and structural construction within the pit-in-pit range are carried out after the design strength is reached, when the structural waterproof construction is guaranteed, the flatness of the side wall of the secant pile is realized, the plastering and leveling construction among the piles is carried out along with the excavation during the pit-in-pit excavation, and the reinforcement net piece can be additionally arranged when the plastering and leveling layer 7 is thick.
Through adopting the scheme that this application provided, can reach big excavation supporting stability and the not influenced function of basic bearing capacity when foundation slab earthwork excavates in the large-scale deep basal pit, stability and the security of big excavation supporting structure during the excavation of guarantee hole well, simultaneously, also can guarantee the bearing capacity requirement of foundation soil in the foundation slab scope.
This application still includes excavation supporting mechanism 8, and excavation supporting mechanism 8 establishes to the column, is equipped with prestressed anchorage cable 10 through the connection of anchor head 9 on excavation supporting mechanism 8.
The pit supporting structure 8 is provided in a columnar form with a predetermined height, thereby facilitating field operation by a user.
The left side of the foundation pit supporting mechanism 8 is fixedly connected with the fertilizer groove concrete layer 6; the prestressed anchor cables 10 are arranged in a plurality and distributed on the foundation pit supporting mechanism 8 at intervals in parallel.
And a reinforcing mesh is arranged in the plastering leveling layer 7.
When the plastering leveling layer 7 is thick, the reinforcing mesh is inserted into the plastering leveling layer, so that the stability of the whole structure is improved.
The cushion layer 3 is made of graded sandstone.
The buffer cushion layer 3 mainly has the function of reducing the rigidity of the range of the occlusive pile and avoiding differential settlement and stress concentration.
The utility model also provides another technical scheme:
a construction method of a stress-maintaining permanent-temporary combined continuous pile wall supporting structure comprises the following implementation processes:
after a large foundation pit is excavated to the large surface elevation of the pit bottom, constructing a pit-in-pit supporting continuous pile wall 1, constructing the pit-in-pit supporting continuous pile wall 1 by adopting an occlusive pile, and selectively arranging single-row cantilevers or double-row cantilevers according to the depth of the pit-in-pit; the crown beam 5 is constructed after the secant pile construction is finished; and simultaneously pouring the reinforced connecting plate and the concrete of the crown beam 5.
The construction of the pit-in-pit supporting continuous pile wall 1, the top crown beam 5 and the reinforcement connecting plate is completed, earth and stone excavation and structure construction in the pit-in-pit range are carried out after the design strength is reached, in order to ensure the flatness of the side wall of the secant pile during the waterproof construction of the structure, plastering and leveling construction among piles is carried out along with excavation during pit-in-pit excavation, and a reinforcement net piece is additionally arranged when a plastering and leveling layer 7 reaches a preset thickness;
setting the cushion layer 3 to be 300-500mm thick; a concrete cushion layer 2 is arranged on the upper part of the cushion layer 3; and a fertilizer groove between the middle pit and the large foundation pit of the concrete backfill pit is adopted.
The secant pile is a cast-in-situ bored pile and is formed by interlocking a reinforced concrete pile and a plastic concrete pile at intervals.
The cushion layer 3 is made of graded sandstone.
The setting of cushion 3 is convenient for the waterproof construction of whole engineering.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. A stress-maintaining type permanent-temporary combined continuous pile wall supporting structure is characterized by comprising a pit-in-pit supporting continuous pile wall, wherein a concrete cushion layer, a cushion layer and a reinforcement connecting plate layer are sequentially arranged on the top of the pit-in-pit supporting continuous pile wall from top to bottom, and the left end and the right end of the cushion layer are respectively provided with a crown beam and a fertilizer tank concrete layer; the thickness of the buffer cushion layer is 300-500mm, one end of the concrete cushion layer is flush with the left end of the crown beam, and the other end of the concrete cushion layer extends into the concrete layer of the fertilizer trough; the right end of the reinforcement connecting plate layer is flush with the right end of the fertilizer groove concrete layer; and plastering leveling layers are vertically distributed on the left side of the pit-in-pit supporting continuous pile wall.
2. The stress-maintaining permanently bonded continuous pile wall supporting structure of claim 1, further comprising a supporting mechanism for a foundation pit, wherein the supporting mechanism is configured in a column shape, and the supporting mechanism is provided with a prestressed anchor cable connected by an anchor head.
3. The stress-maintaining type permanently temporary combined continuous pile wall supporting structure as claimed in claim 2, wherein the left side of the foundation pit supporting mechanism is fixedly connected with a concrete layer of a fertilizer groove; the prestressed anchor cables are arranged in a plurality of numbers and are distributed on the foundation pit supporting mechanism at intervals in parallel.
4. The stress-maintaining permanently bonded continuous pile wall supporting construction of claim 3 wherein a rebar mesh is provided within said troweled screed.
5. The stress-maintaining permanently bonded continuous pile wall supporting structure of claim 4, wherein said cushion layer is fabricated from graded sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223587215.7U CN218813764U (en) | 2022-12-31 | 2022-12-31 | Stress-maintaining type faces combination continuous pile wall supporting construction forever |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223587215.7U CN218813764U (en) | 2022-12-31 | 2022-12-31 | Stress-maintaining type faces combination continuous pile wall supporting construction forever |
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| CN218813764U true CN218813764U (en) | 2023-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090224A (en) * | 2023-10-18 | 2023-11-21 | 上海建工集团股份有限公司 | Edge-pasting pit-in-pit unsupported enclosure system and construction method thereof |
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2022
- 2022-12-31 CN CN202223587215.7U patent/CN218813764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090224A (en) * | 2023-10-18 | 2023-11-21 | 上海建工集团股份有限公司 | Edge-pasting pit-in-pit unsupported enclosure system and construction method thereof |
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