CN111648381A - Foundation pit supporting structure - Google Patents
Foundation pit supporting structure Download PDFInfo
- Publication number
- CN111648381A CN111648381A CN202010615294.4A CN202010615294A CN111648381A CN 111648381 A CN111648381 A CN 111648381A CN 202010615294 A CN202010615294 A CN 202010615294A CN 111648381 A CN111648381 A CN 111648381A
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- Prior art keywords
- foundation pit
- supporting
- limiting
- wall
- bottom plate
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- 239000002689 soil Substances 0.000 claims abstract description 22
- 238000010276 construction Methods 0.000 claims description 14
- 125000003003 spiro group Chemical group 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 5
- 239000004568 cement Substances 0.000 description 6
- 239000004540 pour-on Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a foundation pit supporting structure and a foundation pit supporting method, wherein the foundation pit supporting structure comprises a baffle plate covered on the inner wall of a foundation pit, a plurality of supporting piles inserted at the junction of the bottom of the foundation pit and the inner wall of the foundation pit, a plurality of anchor piles inserted at the edge of a pit opening of the foundation pit and a plurality of pull rods embedded in the soil body of the inner wall of the foundation pit, wherein the supporting piles, the anchor piles and the pull rods are arranged in a one-to-one correspondence manner, one ends of the pull rods are in threaded connection with the anchor piles, the other ends of the pull rods sequentially penetrate through the baffle plate and the supporting piles and then are in threaded connection with. By adopting the technical scheme of the invention, the inner wall of the foundation pit, the bottom of the foundation pit and the soil body at the edge of the opening of the foundation pit are connected into a whole, so that the potential safety hazard of integral collapse of the inner wall of the foundation pit can be effectively avoided, a triangular supporting structure is formed by the baffle, the supporting rods and the bottom plate, and the soil body is further grasped by arranging the clamp nails on the baffle, thereby improving the stability and the safety of the support.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a foundation pit supporting structure.
Background
In the construction of building engineering, in order to bury pile foundation or construct basement, bury underground pipeline, etc., it is often necessary to excavate foundation pit, and at the same time, it is also necessary to excavate foundation pit in various underground engineering, in the excavation construction process of foundation pit, in order to prevent the collapse of foundation pit soil, it is necessary to carry out supporting operation on the foundation pit, the existing foundation pit supporting structure generally adopts the modes of pile-row supporting, pile-anchoring, pile-row cantilever, underground continuous wall supporting, cement retaining wall, soil nailing wall, shotcrete supporting, etc., the existing supporting mode usually connects the soil mass of the inner wall of the foundation pit into one body to prevent the collapse of the soil mass, however, the foundation pit supporting structure of this mode does not connect the soil mass of the inner wall of the foundation pit with the soil mass of the bottom of the foundation pit and the edge of the opening of the foundation pit into one body, and still has, the method is easy to cause major safety accidents and still has potential safety hazards.
Disclosure of Invention
In order to solve the technical problem, the invention provides a foundation pit supporting structure.
The invention is realized by the following technical scheme.
The invention provides a foundation pit supporting structure which comprises a baffle plate covered on the inner wall of a foundation pit, a plurality of supporting piles inserted at the junction of the bottom of the foundation pit and the inner wall of the foundation pit, a plurality of anchor piles inserted at the edge of a pit opening of the foundation pit and a plurality of pull rods embedded in the soil body of the inner wall of the foundation pit, wherein the supporting piles, the anchor piles and the pull rods are arranged in a one-to-one correspondence mode, one ends of the pull rods are in threaded connection with the anchor piles, the other ends of the pull rods sequentially penetrate through the baffle plate and the supporting piles and then are in threaded connection with locking nuts, and the supporting piles are clamped between the baffle plate.
The lower end of the anchor pile is arranged to be in a shape of an inverted cone with a large upper part and a small lower part.
The lower end of the support pile is arranged to be in an inverted cone shape with a large upper part and a small lower part.
The foundation pit supporting structure is characterized in that a limiting groove is further formed in the surface of the supporting pile, the foundation pit supporting structure further comprises a bottom plate, one side of the bottom plate is clamped and sleeved in the limiting groove, and the other side of the bottom plate is fixed to the bottom of the foundation pit through a fastening piece.
The foundation pit supporting structure further comprises a supporting rod, one end of the supporting rod is fixed with the supporting pile through a bolt, and the other end of the supporting rod is fixed with the bottom plate through a bolt.
The lower surface of the bottom plate is flush with the bottom of the foundation pit.
The fastening piece comprises at least one pair of sleeves and a drill rod, the sleeves are fixedly arranged on the bottom plate, and the bottom plate is fixed on the bottom of the foundation pit after the drill rod penetrates through the sleeves and is inserted into the bottom of the foundation pit.
The drill rod is provided with limiting convex strips at the periphery, the inner wall of the sleeve is provided with corresponding limiting grooves, and the limiting convex strips are sleeved in the limiting grooves when the drill rod penetrates through the sleeve.
The foundation pit supporting structure further comprises a limiting pin, a corresponding limiting hole is formed in the drill rod, supporting shafts are further fixed on the bottom plate, the number of the supporting shafts is multiple, each supporting shaft is arranged in one-to-one correspondence with the corresponding sleeve, a rotatable pressing plate is mounted on each supporting shaft, a limiting spring is mounted on each pressing plate, the limiting pin is supported on the limiting spring, and when the limiting spring is compressed or stretched, the limiting pin can be inserted into or extend out of the limiting hole along with the movement of the limiting spring.
And a plurality of clamping nails are arranged on the surface of one side of the baffle facing the inner wall of the foundation pit.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, the inner wall of the foundation pit and the bottom of the foundation pit are connected into a whole through the baffle, the support rod and the bottom plate, and the soil body at the edge of the opening of the foundation pit and the soil body at the inner wall of the foundation pit are also connected into a whole through the anchor pile, the pull rod and the support pile, so that the potential safety hazard of integral collapse of the inner wall of the foundation pit can be effectively avoided, the baffle, the support rod and the bottom plate form a triangular support structure, the stability and the safety are correspondingly higher, in addition, the baffle is also provided with the staple bolt which can further grasp the soil body in the inner wall of the foundation pit to prevent the foundation pit from collapsing and improve the stability and the safety, the bottom plate is connected with the bottom of the foundation pit through the corresponding fastener, by using cement to pour on the fastener, after the cement is solidified, the bottom plate and the bottom surface of the side slope can be more tightly connected into a whole, so that the stability and the safety of the foundation pit supporting structure are further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the arrangement of the support piles of the present invention along the inner wall of the foundation pit;
FIG. 3 is a schematic view of the structure of the tie bar of the present invention;
FIG. 4 is a top view of the drill rod of the present invention;
fig. 5 is a top view of the sleeve of the present invention.
In the figure: 1-baffle plate, 2-support pile, 3-anchor pile, 4-pull rod, 5-locking nut, 6-bottom plate, 7-support rod, 8-sleeve, 9-drill rod, 10-limit pin, 11-support shaft, 12-pressing plate, 13-clamping nail, 801-limit groove and 901-limit convex strip.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 5, the invention provides a foundation pit supporting structure, which comprises a baffle 1 covering the inner wall of a foundation pit, a plurality of support piles 2 inserted at the junction of the bottom of the foundation pit and the inner wall of the foundation pit, a plurality of anchor piles 3 inserted at the edge of a foundation pit opening, and a plurality of pull rods 4 embedded in the soil body of the inner wall of the foundation pit, wherein the support piles 2, the anchor piles 3 and the pull rods 4 are arranged in a one-to-one correspondence manner, one end of each pull rod 4 is in threaded connection with the anchor pile 3, the other end of each pull rod 4 sequentially penetrates through the baffle 1 and the support piles 2 and then is in threaded connection with a locking nut 5, and the support piles 2 are clamped between.
Further, the lower end of the anchor pile 3 is set to be in an inverted cone shape with a large upper part and a small lower part. The lower end of the support pile 2 is arranged to be in a shape of an inverted cone with a large upper part and a small lower part. By adopting the shapes of the anchor piles 3 and the support piles 2, the anchor piles 3 and the support piles 2 can be easily inserted into soil bodies, and the installation is convenient.
In addition, the surface of the support pile 2 is also provided with a limit groove, the foundation pit support structure further comprises a bottom plate 6, one side of the bottom plate 6 is clamped and sleeved in the limit groove, and the other side of the bottom plate 6 is fixed on the bottom of the foundation pit through a fastening piece. Preferably, the lower surface of the bottom plate 6 is flush with the bottom of the foundation pit. The foundation pit supporting structure further comprises a supporting rod 7, one end of the supporting rod 7 is fixed with the supporting pile 2 through a bolt, and the other end of the supporting rod 7 is fixed with the bottom plate 6 through a bolt. By adopting the technical scheme of the invention, the baffle, the supporting rod and the bottom plate form a triangular supporting structure, and the stability and the safety are correspondingly higher.
Further, the fastener comprises at least one pair of sleeves 8 and drill rods 9, the sleeves 8 are fixedly arranged on the bottom plate 6, and the bottom plate 6 is fixed on the bottom of the foundation pit after the drill rods 9 are inserted into the bottom of the foundation pit through the sleeves 8. The drill rod 9 is provided with limiting convex strips 901 on the periphery, the inner wall of the sleeve 8 is provided with corresponding limiting grooves, and when the drill rod 9 penetrates through the sleeve 8, the limiting convex strips 901 are sleeved in the limiting grooves.
In addition, the foundation pit supporting structure further comprises a limiting pin 10, a corresponding limiting hole is formed in the drill rod 9, supporting shafts 11 are further fixed on the bottom plate 6, the number of the supporting shafts 11 is multiple, the supporting shafts 11 are arranged in a one-to-one correspondence mode with the sleeves 8, a rotatable pressing plate 12 is installed on each supporting shaft 11, a limiting spring is installed on each pressing plate 12, the limiting pin 10 is supported on the limiting spring, and when the limiting spring is compressed or stretched, the limiting pin 10 can be inserted into or extend out of the limiting hole along with the movement of the limiting spring. When the foundation pit is subjected to supporting construction, the drill rod 9 can be closed through rotating the pressing plate cover, and the drill rod 9 is connected with the pressing plate into a whole through the limiting pin 10, so that the bottom plate 6 is more closely connected with the bottom of the foundation pit, and the soil body at the bottom of the foundation pit is further grasped tightly.
In addition, a plurality of staples 13 are arranged on the surface of one side of the baffle plate 1 facing the inner wall of the foundation pit. By adopting the technical scheme of the invention, the blocking plate is also provided with the clamping nail, so that the soil body in the inner wall of the foundation pit can be further grasped, the foundation pit collapse is prevented, and the stability and the safety are improved.
In addition, when the foundation pit supporting structure of the invention is used, the construction can be carried out according to the following steps:
the method comprises the steps of providing a baffle 1, a plurality of supporting piles 2, a plurality of anchor piles 3, a plurality of pull rods 4 and a plurality of locking nuts 5, covering the baffle 1 on the inner wall of a foundation pit in sequence, inserting the plurality of supporting piles 2 into the junction of the bottom of the foundation pit and the inner wall of the foundation pit, inserting the plurality of anchor piles 3 into the edge of the junction of the foundation pit, burying the plurality of pull rods 4 in the soil body of the inner wall of the foundation pit, arranging the supporting piles 2, the anchor piles 3, the pull rods 4 and the locking nuts 5 in a one-to-one correspondence mode, then screwing one ends of the pull rods 4 with the anchor piles 3, sequentially penetrating the other ends of the pull rods 4 through the baffle 1, screwing the supporting piles 2 with the locking nuts 5, and clamping the supporting piles 2.
Further, the foundation pit supporting method further comprises the following steps:
providing a bottom plate 6, wherein a limiting groove is further formed in the surface of the support pile 2, one side of the bottom plate 6 is clamped and sleeved in the limiting groove, and cement is poured onto the fastening piece after the other side of the bottom plate 6 is fixed to the bottom of the foundation pit through the fastening piece.
By adopting the technical scheme of the invention, the inner wall of the foundation pit and the bottom of the foundation pit are connected into a whole through the baffle, the support rod and the bottom plate, and the soil body at the edge of the opening of the foundation pit and the soil body at the inner wall of the foundation pit are also connected into a whole through the anchor pile, the pull rod and the support pile, so that the potential safety hazard of integral collapse of the inner wall of the foundation pit can be effectively avoided, the baffle, the support rod and the bottom plate form a triangular support structure, the stability and the safety are correspondingly higher, in addition, the baffle is also provided with the staple bolt which can further grasp the soil body in the inner wall of the foundation pit to prevent the foundation pit from collapsing and improve the stability and the safety, the bottom plate is connected with the bottom of the foundation pit through the corresponding fastener, by using cement to pour on the fastener, after the cement is solidified, the bottom plate and the bottom surface of the side slope can be more tightly connected into a whole, so that the stability and the safety of the foundation pit supporting structure are further improved.
Claims (10)
1. The utility model provides a foundation ditch supporting construction which characterized in that: including cover baffle (1), cartridge on foundation ditch inner wall at the bottom of the pit with many fender pile (2) of foundation ditch inner wall juncture, cartridge in many anchor pile (3) at foundation ditch gallery road junction border, bury many pull rod (4) in the foundation ditch inner wall soil body underground, fender pile (2), anchor pile (3) and pull rod (4) one-to-one arrange, the one end of pull rod (4) with anchor pile (3) spiro union, the other end of pull rod (4) passes in proper order the spiro union has lock nut (5) behind baffle (1), fender pile (2) centre gripping in between baffle (1) and lock nut (5).
2. A foundation pit supporting construction according to claim 1, wherein: the lower end of the anchor pile (3) is arranged to be in an inverted cone shape with a large upper part and a small lower part.
3. A foundation pit supporting construction according to claim 1, wherein: the lower end of the support pile (2) is arranged to be in an inverted cone shape with a large upper part and a small lower part.
4. A foundation pit supporting construction according to claim 1, wherein: the surface of the support pile (2) is further provided with a limiting groove, the foundation pit supporting structure further comprises a bottom plate (6), one side of the bottom plate (6) is clamped and sleeved in the limiting groove, and the other side of the bottom plate (6) is fixed to the bottom of the foundation pit through a fastening piece.
5. A foundation pit supporting construction according to claim 4, wherein: the foundation pit supporting structure further comprises a supporting rod (7), one end of the supporting rod (7) is fixed with the supporting pile (2) through a bolt, and the other end of the supporting rod (7) is fixed with the bottom plate (6) through a bolt.
6. A foundation pit supporting construction according to claim 4, wherein: the lower surface of the bottom plate (6) is flush with the bottom of the foundation pit.
7. A foundation pit supporting construction according to claim 4, wherein: the fastening piece comprises at least one pair of sleeves (8) and a drill rod (9), the sleeves (8) are fixedly arranged on the bottom plate (6), and the bottom plate (6) is fixed on the bottom of the foundation pit after the drill rod (9) penetrates through the sleeves (8) and is inserted into the bottom of the foundation pit.
8. A foundation pit supporting construction according to claim 7, wherein: the drill rod (9) is provided with limiting convex strips (901) at the periphery, the inner wall of the sleeve (8) is provided with corresponding limiting grooves, and when the drill rod (9) penetrates through the sleeve (8), the limiting convex strips (901) are sleeved in the limiting grooves.
9. A foundation pit supporting construction according to claim 7, wherein: the foundation pit supporting structure further comprises a limiting pin (10), a corresponding limiting hole is formed in the drill rod (9), supporting shafts (11) are further fixed on the bottom plate (6), the number of the supporting shafts (11) is multiple, each supporting shaft (11) is arranged in one-to-one correspondence with the corresponding sleeve (8), a rotatable pressing plate (12) is installed on each supporting shaft (11), a limiting spring is installed on each pressing plate (12), the limiting pin (10) is supported on the limiting spring, and when the limiting spring is compressed or stretched, the limiting pin (10) can be inserted into or extend out of the limiting hole along with the movement of the limiting spring.
10. A foundation pit supporting construction according to claim 1, wherein: the baffle (1) is provided with a plurality of staple bolts (13) on the surface of one side facing the inner wall of the foundation pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010615294.4A CN111648381A (en) | 2020-06-30 | 2020-06-30 | Foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010615294.4A CN111648381A (en) | 2020-06-30 | 2020-06-30 | Foundation pit supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN111648381A true CN111648381A (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010615294.4A Pending CN111648381A (en) | 2020-06-30 | 2020-06-30 | Foundation pit supporting structure |
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| Country | Link |
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| CN (1) | CN111648381A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281870A (en) * | 2020-11-18 | 2021-01-29 | 贵州建工集团第一建筑工程有限责任公司 | Foundation pit supporting structure |
| CN112411572A (en) * | 2020-11-27 | 2021-02-26 | 贵州建工集团第一建筑工程有限责任公司 | Building foundation pit supporting system |
| CN112681341A (en) * | 2021-01-19 | 2021-04-20 | 郭高强 | Deep foundation pit collapse prevention structure for building construction |
| CN113338306A (en) * | 2021-07-19 | 2021-09-03 | 江苏晋陵建设发展有限公司 | Foundation pit supporting system |
| CN115012401A (en) * | 2022-04-22 | 2022-09-06 | 安徽厚普建设工程有限公司 | Foundation structure of house building and construction method thereof |
| CN115288702A (en) * | 2022-07-19 | 2022-11-04 | 中国一冶集团有限公司 | Auxiliary reinforcing device for stepped core soil of underground excavation tunnel and construction method of auxiliary reinforcing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204825921U (en) * | 2015-07-06 | 2015-12-02 | 中国建筑第八工程局有限公司 | Excavation supporting system |
| CN109024631A (en) * | 2018-09-10 | 2018-12-18 | 东华理工大学 | A kind of slope retaining structure and method for protecting support |
| CN209923941U (en) * | 2019-04-29 | 2020-01-10 | 江啸 | Building foundation pit supporting device |
| CN212388562U (en) * | 2020-06-30 | 2021-01-22 | 贵州建工集团第一建筑工程有限责任公司 | Foundation pit supporting structure |
-
2020
- 2020-06-30 CN CN202010615294.4A patent/CN111648381A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204825921U (en) * | 2015-07-06 | 2015-12-02 | 中国建筑第八工程局有限公司 | Excavation supporting system |
| CN109024631A (en) * | 2018-09-10 | 2018-12-18 | 东华理工大学 | A kind of slope retaining structure and method for protecting support |
| CN209923941U (en) * | 2019-04-29 | 2020-01-10 | 江啸 | Building foundation pit supporting device |
| CN212388562U (en) * | 2020-06-30 | 2021-01-22 | 贵州建工集团第一建筑工程有限责任公司 | Foundation pit supporting structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281870A (en) * | 2020-11-18 | 2021-01-29 | 贵州建工集团第一建筑工程有限责任公司 | Foundation pit supporting structure |
| CN112411572A (en) * | 2020-11-27 | 2021-02-26 | 贵州建工集团第一建筑工程有限责任公司 | Building foundation pit supporting system |
| CN112681341A (en) * | 2021-01-19 | 2021-04-20 | 郭高强 | Deep foundation pit collapse prevention structure for building construction |
| CN113338306A (en) * | 2021-07-19 | 2021-09-03 | 江苏晋陵建设发展有限公司 | Foundation pit supporting system |
| CN115012401A (en) * | 2022-04-22 | 2022-09-06 | 安徽厚普建设工程有限公司 | Foundation structure of house building and construction method thereof |
| CN115012401B (en) * | 2022-04-22 | 2023-12-12 | 安徽厚普建设工程有限公司 | Foundation structure of house building and construction method thereof |
| CN115288702A (en) * | 2022-07-19 | 2022-11-04 | 中国一冶集团有限公司 | Auxiliary reinforcing device for stepped core soil of underground excavation tunnel and construction method of auxiliary reinforcing device |
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