CN212926091U - Foundation pit supporting structure with temporary protection and easy disassembly - Google Patents
Foundation pit supporting structure with temporary protection and easy disassembly Download PDFInfo
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- CN212926091U CN212926091U CN202021425581.0U CN202021425581U CN212926091U CN 212926091 U CN212926091 U CN 212926091U CN 202021425581 U CN202021425581 U CN 202021425581U CN 212926091 U CN212926091 U CN 212926091U
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Abstract
The utility model relates to a quick detachable excavation supporting construction of interim protection, the field of involving, it includes the foundation pit wall, at the bottom of the foundation pit, the retaining wall, first precast pile, the second precast pile, first connection structure, second connection structure, the retaining wall sets up in foundation pit wall department, one side that the retaining wall was kept away from to a plurality of first precast piles through first connection structure fixed connection at the retaining wall, one side that the retaining wall was kept away from to a plurality of second precast piles through second connection structure fixed connection at first precast pile. The retaining wall can effectively be supported in setting up of first precast pile and second precast pile, make the retaining wall more firm, increase the security performance of retaining wall simultaneously, first connection structure is detachable construction with second connection structure, make retaining wall and first precast pile be connected through first connection structure and second connection structure respectively, first precast pile and second precast pile joinable/part, realize first precast pile and second precast pile detachable effect, make first precast pile and second precast pile repeatedly usable.
Description
Technical Field
The application relates to the field of foundation pit support, especially, relate to a quick detachable foundation pit support structure of interim protection.
Background
At present, a corresponding foundation pit is usually required to be excavated according to the engineering quantity in the construction process, the foundation pit belongs to temporary engineering, the foundation pit is used for providing a space, the building operation of a foundation can be carried out according to the position appointed by the design, and in order to increase the safety factor in the operation process of the foundation pit and ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit, supporting, reinforcing and protecting measures are required to be adopted for the side wall of the foundation pit and the surrounding environment.
The existing Chinese patent with the application number of CN201510525637.7 provides a combined type foundation pit supporting pile structure, which comprises a high-pressure jet grouting pile, a drilling jet grouting pile and a crown beam, wherein a plurality of mutually occluded high-pressure jet grouting columns are foundation pit water-proof curtains, the drilling jet grouting pile is a foundation pit supporting pile, the drilling jet grouting pile is internally tangent with the high-pressure jet grouting pile on one side close to a foundation pit on the premise of not invading and occupying the occluded part of an adjacent high-pressure jet grouting pile, and the crown beam is connected to the pile top positions of the high-pressure jet grouting pile and the drilling jet grouting pile.
To the correlation technique among the above-mentioned, the high pressure jet grouting pile, the drilling sprinkling irrigation stake that set up at this foundation ditch are reinforced concrete structure, cause pollution and the influence of certain degree to the environment when laying, and the foundation ditch is interim engineering simultaneously, and the high pressure jet grouting pile of this foundation ditch of later stage is difficult to demolish, and the manpower and object strength of needs is great, and can't the reutilization after demolising, causes the waste of resource easily.
SUMMERY OF THE UTILITY MODEL
In order to reduce the influence to the environment and make the quick detachable excavation supporting structure of interim protection ability reuse when laying of the quick detachable excavation supporting structure of interim protection, this application provides a quick detachable excavation supporting structure of interim protection.
The application provides a pair of quick detachable excavation supporting construction of interim protection adopts following technical scheme:
the utility model provides a quick detachable excavation supporting construction of interim protection, includes foundation pit wall, the foundation pit end, retaining wall, first precast pile, second precast pile, first connection structure, second connection structure, the retaining wall sets up in foundation pit wall department, and is a plurality of first precast pile passes through first connection structure fixed connection is in the retaining wall is kept away from one side of foundation pit wall, and is a plurality of the second precast pile passes through second connection structure fixed connection is in first precast pile is kept away from one side of retaining wall.
Through adopting above-mentioned technical scheme, first connection structure is detachable construction with second connection structure, make retaining wall and the first precast pile of being connected through first connection structure and second connection structure respectively, first precast pile and second precast pile joinable/part, realize first precast pile and second precast pile detachable effect, make first precast pile and second precast pile repeatedly usable, first precast pile can effectively support the retaining wall with setting up of second precast pile simultaneously, make the retaining wall more firm, increase the security performance of retaining wall.
Preferably, the first connecting structure includes a plurality of fixing grooves, a plurality of first fixing steel pipes, and a plurality of first supporting steel columns, the fixing grooves are disposed on one side of the retaining wall away from the foundation pit wall, a plurality of first fixing steel pipes are fixed on one side of the first precast pile close to the retaining wall, the first fixing steel pipes are in splicing fit with the fixing grooves, and the first supporting steel pipes penetrate through the first supporting steel columns.
Through adopting above-mentioned technical scheme, first fixed steel pipe and fixed recess grafting adaptation make the grafting adaptation form more stable structure between first precast pile and the retaining wall, make the fender soil effect of retaining wall better, and first support steel column wears to locate in the first support steel pipe for support first precast pile and retaining wall, reduce the probability that first precast pile and retaining wall take place the displacement.
Preferably, the second connecting structure comprises a first limiting steel pipe, a second fixing steel pipe and a second supporting steel column, wherein a plurality of first limiting steel pipes are fixed on one side, away from the retaining wall, of the first precast pile, a plurality of second fixing steel pipes are fixed on one side, close to the first precast pile, of the second precast pile, the second fixing steel pipes and the first limiting steel pipes are coaxially arranged, and a plurality of second supporting steel columns penetrate through the space between the first limiting steel pipes and the second fixing steel pipes.
Through adopting above-mentioned technical scheme, the second supports the steel column and makes the fixed steel pipe of second and the coaxial setting of first spacing steel pipe, reduces the displacement of the fixed steel pipe of second and first spacing steel pipe, and then reduces the displacement with the first precast pile of first spacing steel pipe fixed connection, with the second precast pile of the fixed steel pipe fixed connection of second, makes the connection between first precast pile, the second precast pile more stable.
Preferably, the first support steel column penetrates through the first fixed steel pipe and then extends into the foundation pit bottom, and the second support steel column penetrates through the first limiting steel pipe and the second fixed steel pipe and then extends into the foundation pit bottom.
Through adopting above-mentioned technical scheme, inside first support steel column and second support steel column extended to the foundation pit bottom, reduced first support steel column and the radial displacement of second support steel column, made the first fixed steel pipe of being connected with first fixed steel pipe, the fixed steel pipe of second and first spacing steel pipe more firm, and then made the retaining wall of being connected with first fixed steel pipe, the fixed steel pipe of second, first spacing steel pipe, first precast pile, second precast pile more stable.
Preferably, the circumferential arc of the fixing groove is an arc greater than 180 degrees, and the axis of the fixing groove is perpendicular to the bottom direction of the foundation pit.
Through adopting above-mentioned technical scheme, the radial displacement that the first fixed steel pipe takes place in fixed recess is reduced for being greater than 180 degrees arc to fixed recess's circumference circular arc, and fixed recess's axis is perpendicular with foundation ditch bottom direction, makes the first support steel column perpendicular to foundation ditch bottom direction extension to with the first fixed steel pipe looks grafting adaptation, makes first support steel column more stable.
Preferably, the diameter of the first support steel column is consistent with the inner diameter of the first fixed steel pipe, and the diameter of the second support steel column is consistent with the inner diameter of the first limiting steel pipe and the inner diameter of the second fixed steel pipe.
Through adopting above-mentioned technical scheme, make first support steel column grafting adaptation in first fixed steel pipe, when the second supports steel column grafting adaptation in the fixed steel pipe of second, first support steel column and first fixed steel pipe are laminated more, and the second supports steel column and the fixed steel pipe of second and laminates more, makes wholly more stable.
Preferably, one end of each of the first support steel column and the second support steel column is provided with a positioning groove, and the other end of each of the first support steel column and the second support steel column is provided with a positioning protrusion matched with the positioning groove in an inserted manner.
By adopting the technical scheme, through the arranged positioning grooves and the positioning protrusions, the total length of the first supporting rods can be flexibly set through the positioning grooves and the positioning protrusions of the plurality of first supporting steel columns, and the total length of the second supporting rods can be flexibly set through the positioning grooves and the positioning protrusions of the plurality of second supporting steel columns.
Preferably, the first precast pile and the second precast pile are all provided with steel frames on the periphery, a concrete body is poured into the steel frames, a plurality of reinforcing steel bars penetrate through the concrete body, and the axes of the reinforcing steel bars are parallel to the axis of the first supporting steel column.
Through adopting above-mentioned technical scheme, first precast pile and second precast pile preparation are convenient, and repeatedly usable reduces construction cost simultaneously.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the first precast pile and the second precast pile are arranged on one side of the retaining wall far away from the foundation pit wall through the first connecting structure and the second connecting structure, so that the retaining wall can effectively block soil of the foundation pit wall, the foundation pit wall is more stable, and the safety performance in the construction process is improved;
2. the first fixed steel pipe, the second fixed steel pipe and the first limit steel pipe are more stable by arranging the support steel pipe, so that the retaining wall, the first precast pile and the second precast pile connected with the first fixed steel pipe, the second fixed steel pipe and the first limit steel pipe are more stable;
3. the first precast pile and the second precast pile which are arranged through the first connecting structure and the second connecting structure are of detachable structures and can be repeatedly used, and construction cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram 1 of the present application;
FIG. 2 is a schematic structural diagram of the present application 2;
FIG. 3 is an enlarged view of part A of FIG. 2;
fig. 4 is a schematic sectional view taken along line B-B in fig. 2.
Reference numerals: 1. a retaining wall; 2. a first precast pile; 3. a second precast pile; 4. a foundation pit wall; 5. a first fixed steel pipe; 6. a foundation pit bottom; 7. fixing the groove; 8. a first support steel column; 9. a first limit steel pipe; 10. a second fixed steel pipe; 11. a second support steel column; 12. positioning the projection; 13. a positioning groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses quick detachable excavation supporting construction of interim protection. Referring to fig. 1 and 2, including retaining wall 1, first precast pile 2, second precast pile 3, retaining wall 1 sets up in foundation ditch wall 4 department, and retaining wall 1 is reinforcing steel bar frame pouring concrete body structure. The retaining wall 1 supports the foundation pit wall 4.
A plurality of first precast piles 2 set up in one side of keeping away from basic pit wall 4 at retaining wall 1, a plurality of second precast piles 3 set up in one side that retaining wall 1 was kept away from at first precast pile 2, first precast pile 2 all sets up to the cuboid form with second precast pile 3, first precast pile 2 is steel frame and concrete body constitution with second precast pile 3, the inside concrete body that has poured into of steel frame, many reinforcing bars are worn to be equipped with inside the concrete body, 6 at the bottom of reinforcing bar's the axis and the perpendicular to foundation ditch. Through having poured into the concrete body at inside the steel frame and making first precast pile 2 and second precast pile 3, the preparation is convenient, and repeatedly usable simultaneously reduces construction cost, utilizes first precast pile 2 and second precast pile 3 to support retaining wall 1, strengthens retaining wall 1's strutting intensity.
Referring to fig. 1 and 3, one side of first precast pile 2 near retaining wall 1 is fixed with many first fixed steel pipes 5, first fixed steel pipe 5 is fixed at four angle departments of the one side of first precast pile 2 near retaining wall 1, the axis direction of first fixed steel pipe 5 is perpendicular with at the bottom of the foundation pit 6, a plurality of fixed recesses 7 have been seted up to one side of retaining wall 1 far away from foundation pit wall 4, the circumference circular arc of fixed recess 7 is for being greater than 180 degrees arc, the axis of fixed recess 7 sets up with at the bottom of the foundation pit 6 perpendicularly, the external diameter of first fixed steel pipe 5 is unanimous with the internal diameter of fixed recess 7, first fixed steel pipe 5 is pegged graft the adaptation with fixed recess 7. First fixed steel pipe 5 and the adaptation of pegging graft of fixed recess 7 make the laminating between first precast pile 2 and the retaining wall 1 inseparabler, increase retaining wall 1's stability, make retaining wall 1 safer.
The first fixed steel pipe 5 is provided with a first supporting steel column 8 in a penetrating manner, the diameter of the first supporting steel column 8 is consistent with the inner diameter of the first fixed steel pipe 5, and the first supporting steel column 8 penetrates through the first fixed steel pipe 5 and then extends into the bottom 6 of the foundation pit. First support steel column 8 makes and is connected first fixed steel pipe 5 more stable with first fixed steel pipe 5, and then makes retaining wall 1 and first precast pile 2 more stable.
One side that retaining wall 1 was kept away from to first precast pile 2 is fixed with many first spacing steel pipes 9, the internal diameter of first spacing steel pipe 9 is unanimous with first fixed steel pipe 5, the axis direction is unanimous with first fixed steel pipe 5, one side that second precast pile 3 is close to first precast pile 2 is provided with many fixed steel pipes 10 of second, the fixed steel pipe 10 of second and the coaxial setting of first spacing steel pipe 9, the axis of the fixed steel pipe 10 of second is perpendicular at the bottom of the foundation ditch 6, the internal diameter of first spacing steel pipe 9 is unanimous with the internal diameter of the fixed steel pipe 10 of second, wear to be equipped with second support steel column 11 between the fixed steel pipe 10 of first spacing steel pipe 9 and second, the diameter that second supported steel column 11 is unanimous with the internal diameter of first spacing steel pipe 9, second support steel column 11 runs through and extends to the bottom of the foundation ditch inside 6 behind first spacing steel pipe 9 and the fixed. The second supports the first spacing steel pipe 9 of steel column 11 laminating and makes the radial displacement of the fixed steel pipe 10 of first spacing steel pipe 9 and second reduce with the fixed steel pipe 10 of second, makes the fixed steel pipe 10 of first spacing steel pipe 9 and second more firm, and then makes retaining wall 1, first precast pile 2, the second precast pile 3 of being connected with first fixed steel pipe 5, the fixed steel pipe 10 of second, first spacing steel pipe 9 more stable.
Referring to fig. 4, a positioning groove 13 is formed in each of the first supporting steel column 8 and one end of the second supporting column, and a positioning protrusion 12 matched with the positioning groove 13 in an inserting manner is formed in each of the other ends of the first supporting steel column and the second supporting steel column. When the length of the first support steel column 8 or the second support steel column 11 is smaller, the total length of the first support steel column 8 or the second support steel column 11 can be flexibly set through the positioning groove 13 and the positioning protrusion 12.
The implementation principle of the foundation pit supporting structure with temporary protection and easy disassembly is as follows: a retaining wall 1 is arranged at a foundation pit wall 4, a plurality of fixing grooves 7 are formed in one side of the retaining wall 1, which is far away from the foundation pit wall 4, a plurality of first precast piles 2 are arranged on one side of the retaining wall 1, which is far away from the foundation pit wall 4, a plurality of second precast piles 3 are arranged on one side of the first precast piles 2, which is far away from the retaining wall 1, a plurality of first fixing steel pipes 5 are fixedly arranged on one side of the first precast piles 2, which is close to the retaining wall 1, the first fixing steel pipes 5 are in splicing fit with the fixing grooves 7, first supporting steel columns 8 penetrate through the first fixing steel pipes 5 and extend into the foundation pit bottom 6, a plurality of first limiting steel pipes 9 are arranged on one side of the first precast piles 2, which is far away from the retaining wall 1, a plurality of second fixing steel pipes 10 are fixedly arranged on one side of the second precast piles 3, which is close to the first precast piles 2, and the first limiting steel pipes 9 and the second steel pipes are, a plurality of second supporting steel columns 11 penetrate through the space between the first limiting steel tube 9 and the second fixing steel tube 10, and the second supporting steel columns 11 penetrate through the first limiting steel tube 9 and the second fixing steel tube 10 and then extend into the foundation pit bottom 6.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a quick detachable excavation supporting construction of interim protection which characterized in that: including base pit wall (4), foundation ditch end (6), retaining wall (1), first precast pile (2), second precast pile (3), first connection structure, second connection structure, retaining wall (1) sets up base pit wall (4) department, it is a plurality of first precast pile (2) pass through first connection structure fixed connection is in retaining wall (1) is kept away from one side of base pit wall (4), it is a plurality of second precast pile (3) pass through second connection structure fixed connection is in first precast pile (2) is kept away from one side of retaining wall (1).
2. A temporary protection readily detachable foundation pit supporting structure according to claim 1, wherein: the first connecting structure comprises a fixed groove (7), a first fixed steel pipe (5) and a first supporting steel column (8), one side, far away from the foundation pit wall (4), of the retaining wall (1) is provided with a plurality of fixed grooves (7), one side, close to the retaining wall (1), of the first precast pile (2) is fixed with a plurality of first fixed steel pipes (5) matched with the fixed grooves (7) in an inserting mode, and the first supporting steel pipes penetrate through the first supporting steel column (8).
3. A temporary protection readily detachable foundation pit supporting structure according to claim 2, wherein: the second connecting structure comprises a first limiting steel pipe (9), a second fixing steel pipe (10) and a second supporting steel column (11), wherein the first precast pile (2) is far away from one side of the retaining wall (1) and is fixed with a plurality of the first limiting steel pipe (9), the second precast pile (3) is close to one side of the first precast pile (2) and is fixed with a plurality of the second fixing steel pipe (10), the second fixing steel pipe (10) and the first limiting steel pipe (9) are coaxially arranged, and the second supporting steel column (11) is arranged between the first limiting steel pipe (9) and the second fixing steel pipe (10) in a penetrating mode.
4. A temporary protection and readily removable foundation pit supporting structure according to claim 3, wherein: the first supporting steel column (8) penetrates through the first fixed steel pipe (5) and then extends to the inside of the foundation pit bottom (6), and the second supporting steel column (11) penetrates through the first limiting steel pipe (9) and the second fixed steel pipe (10) and then extends to the inside of the foundation pit bottom (6).
5. A temporary protection readily detachable foundation pit supporting structure according to claim 2, wherein: the circumferential arc of the fixed groove (7) is an arc greater than 180 degrees, and the axis of the fixed groove (7) is perpendicular to the direction of the foundation pit bottom (6).
6. A temporary protection and readily removable foundation pit supporting structure according to claim 3, wherein: the diameter of the first supporting steel column (8) is consistent with the inner diameter of the first fixed steel pipe (5), and the diameter of the second supporting steel column (11) is consistent with the inner diameter of the first limiting steel pipe (9) and the inner diameter of the second fixed steel pipe (10).
7. A temporary protection readily detachable foundation pit supporting structure according to claim 6, characterized in that: and one end of each of the first support steel column (8) and the second support steel column (11) is provided with a positioning groove (13), and the other end of each of the first support steel column and the second support steel column is provided with a positioning bulge (12) which is in splicing fit with the positioning groove (13).
8. A temporary protection readily detachable foundation pit supporting structure according to claim 2, wherein: the prefabricated pile comprises a first prefabricated pile body (2) and a second prefabricated pile body (3), wherein steel frames are arranged on the periphery of the first prefabricated pile body (2) and the periphery of the second prefabricated pile body (3), concrete is poured into the steel frames, a plurality of reinforcing steel bars penetrate through the interior of the concrete, and the axis of each reinforcing steel bar is parallel to the axis of a first supporting steel column (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425581.0U CN212926091U (en) | 2020-07-17 | 2020-07-17 | Foundation pit supporting structure with temporary protection and easy disassembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425581.0U CN212926091U (en) | 2020-07-17 | 2020-07-17 | Foundation pit supporting structure with temporary protection and easy disassembly |
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| Publication Number | Publication Date |
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| CN212926091U true CN212926091U (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021425581.0U Active CN212926091U (en) | 2020-07-17 | 2020-07-17 | Foundation pit supporting structure with temporary protection and easy disassembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351724A (en) * | 2022-01-24 | 2022-04-15 | 山西二建集团有限公司 | Protective device for foundation pit excavation |
| CN114541410A (en) * | 2022-01-27 | 2022-05-27 | 山西二建集团有限公司 | A protector for foundation ditch excavation |
-
2020
- 2020-07-17 CN CN202021425581.0U patent/CN212926091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351724A (en) * | 2022-01-24 | 2022-04-15 | 山西二建集团有限公司 | Protective device for foundation pit excavation |
| CN114541410A (en) * | 2022-01-27 | 2022-05-27 | 山西二建集团有限公司 | A protector for foundation ditch excavation |
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