CN220377332U - Trapezoidal composite soil nailing wall supporting structure - Google Patents
Trapezoidal composite soil nailing wall supporting structure Download PDFInfo
- Publication number
- CN220377332U CN220377332U CN202322321025.9U CN202322321025U CN220377332U CN 220377332 U CN220377332 U CN 220377332U CN 202322321025 U CN202322321025 U CN 202322321025U CN 220377332 U CN220377332 U CN 220377332U
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- Prior art keywords
- soil
- foundation pit
- slope
- pile
- soil nail
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- 239000002689 soil Substances 0.000 title claims abstract description 127
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 7
- 239000002344 surface layer Substances 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000011083 cement mortar Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 210000000038 chest Anatomy 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 241001079814 Symphyotrichum pilosum Species 0.000 description 5
- 235000004224 Typha angustifolia Nutrition 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a trapezoid composite soil nailing wall supporting structure, which comprises a foundation pit, wherein the foundation pit comprises a slope top, a pit bottom, a slope and a soil body behind the slope, and a concrete surface layer is arranged on the surface of the slope; the soil nailing device also comprises a plurality of soil nailing structures and piles for supporting the foundation pit; the pile is arranged below the ground of the foundation pit slope top and inclines towards the foundation pit slope direction; the pile comprises a rib frame and pile slurry, wherein the rib frame comprises two longitudinal ribs which are arranged in the pile in a penetrating way, and a plurality of transverse ribs are arranged between the two longitudinal ribs; the soil nail structure is arranged in the soil body behind the slope of the foundation pit, one end of the soil nail structure is arranged on the surface of the slope of the foundation pit, and the other end of the soil nail structure is communicated with the pile; the soil nail structure comprises a soil nail body and a soil nail slurry body, wherein the soil nail body comprises a rod body and an end rod, and the soil nail body is connected with the rib frame in a clamping manner through the end rod. The utility model solves the technical problem that the traditional foundation pit supporting scheme cannot be implemented because the soil nails cannot extend out of red lines in the foundation pit supporting.
Description
Technical Field
The utility model relates to the field of foundation pit soil nailing wall support, in particular to a trapezoid composite soil nailing wall support structure.
Background
When the soil nail wall support of the building foundation pit is carried out, because the soil quality of the soil body behind the side slope is poor, a plurality of measures such as longer soil nails, additional anchor cables, enlarged soil nail pore-forming diameters, reduced excavation gradient and the like are needed, the increase of the measures can certainly increase the construction cost, and the safety coefficient is also lower in some cases. For some engineering projects, the foundation pit is close to the red line, and it is clear that the soil nails and the anchor rods of the foundation pit support cannot extend out of the red line, and in this case, a series of support schemes such as soil nail support, composite soil nail support, pile anchor support and the like cannot be implemented. Therefore, there is a need to design a composite soil nailing wall supporting structure to solve the foundation pit supporting problem under the working condition and the construction requirement.
Disclosure of Invention
The utility model aims to provide a trapezoid composite soil nailing wall supporting structure, which aims to solve the technical problem that a traditional foundation pit supporting scheme cannot be implemented due to the fact that soil nails cannot extend out of red lines in foundation pit supporting.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a trapezoid composite soil nailing wall supporting structure, which comprises a foundation pit and is characterized in that: the foundation pit comprises a slope top, a pit bottom, a slope and a soil body behind the slope, wherein a concrete surface layer is arranged on the surface of the slope; the soil nailing device also comprises a plurality of soil nailing structures and piles for supporting the foundation pit; the pile is arranged below the ground of the foundation pit slope top and inclines towards the foundation pit slope direction; the pile comprises a rib frame and pile slurry, wherein the rib frame comprises two longitudinal ribs which are arranged in the pile in a penetrating way, and a plurality of transverse ribs are arranged between the two longitudinal ribs; the soil nail structure is arranged in the soil body behind the slope of the foundation pit, one end of the soil nail structure is arranged on the surface of the slope of the foundation pit, and the other end of the soil nail structure is communicated with the pile; the soil nail structure comprises a soil nail body and a soil nail slurry body, wherein the soil nail body comprises a rod body and an end rod, the end rod is arranged at the end part of the rod body and is perpendicular to the rod body, the soil nail body is in a T shape, and the soil nail body is connected with the rib frame in a clamping mode through the end rod.
Preferably, at least three soil nail structures are arranged, and the soil nail structures are spaced at equal intervals and are parallel to each other.
Preferably, one end of the soil nail structure, which is communicated with the pile, is inclined downwards, and the included angle between the soil nail structure and the horizontal plane is 5-15 degrees.
Preferably, the length of the lower soil spike structure is greater than the length of the upper soil spike structure.
Preferably, the soil nail rod body passes through the interval between the two longitudinal ribs, and the end rod is arranged on one side of the rib body frame far away from the foundation pit slope and is perpendicular to the longitudinal ribs.
Preferably, the length of the end rod is not smaller than the width of the rib frame and is not larger than the diameter of the cross section of the soil nail structure.
Preferably, the depth of the bottom end of the pile in the soil body is larger than the depth of the foundation pit.
Preferably, the soil nail slurry and the pile slurry are both made of cement mortar.
The beneficial effects of the utility model are as follows: according to the trapezoid composite soil nailing wall supporting structure, the piles are arranged, and the soil nailing structure is matched with the piles, so that the soil nailing pulling resistance is greatly improved; the height of soil nailing wall side slope support can be improved; the soil nail surface layer, the soil nails and piles in soil after the slope form a trapezoid composite supporting structure, so that the safety coefficient of the soil nail wall is effectively improved; can be implemented within a limited range of widths, independently of the red line of use; the method is used under the complex environmental conditions such as limited soil bodies close to existing buildings, roads and the like, not only can the safety of foundation pits and surrounding environments be ensured, but also the construction cost of foundation pit supporting engineering can be greatly saved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The primary object and other advantages of the utility model may be realized and attained by means of the instrumentalities and particularly pointed out in the specification.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a top view at a in fig. 1.
Fig. 3 is a schematic view of the connection of the tendon frame and the soil nail body of the present utility model.
Reference numerals: 2-soil nail structure, 3-pile, 4-concrete surface layer, 11-top of slope, 12-bottom of slope, 13-side slope, soil body after 14-slope, 21-soil nail body, 22-soil nail slurry, 211-rod body, 212-end rod, 31-reinforcement body frame, 32-pile slurry, 311-longitudinal reinforcement and 312-transverse reinforcement.
Detailed Description
The following examples are given by way of illustration only and are not to be construed as limiting the scope of the utility model.
Referring to fig. 1, the utility model provides a trapezoid composite soil nailing wall supporting structure, which comprises a foundation pit and is characterized in that: the foundation pit comprises a slope top 11, a pit bottom 12, a slope 13 and a post-slope soil body 14, wherein a concrete surface layer 4 is arranged on the surface of the slope 13; the foundation pit supporting device also comprises a plurality of soil nail structures 2 and piles 3 for supporting the foundation pit; the pile 3 is arranged below the ground of the foundation pit slope top 11 and is inclined towards the direction of the foundation pit slope 13, and the depth of the bottom end of the pile 3 in the soil body is larger than the depth of the foundation pit; the soil nail structure 2 is arranged in a soil body 14 behind a slope of the foundation pit, one end of the soil nail structure 2 is arranged on the surface of the slope 13 of the foundation pit, the other end of the soil nail structure 2 is communicated with the pile 3, one end of the soil nail structure 2 communicated with the pile 3 is inclined downwards, and the included angle between the soil nail structure 2 and the horizontal plane is 5-15 degrees; the soil nail structures 2 are at least three, are equally spaced and parallel to each other, and the length of the soil nail structure 2 at the lower part is longer than that of the soil nail structure 2 at the upper part.
Referring to fig. 2 to 3, the pile 3 includes a tendon frame 31 and a pile slurry 32, and the pile slurry 32 is made of cement mortar; the rib body frame 31 comprises two longitudinal ribs 311 which are arranged in the pile 3 in a penetrating way, and a plurality of transverse ribs 312 are arranged between the two longitudinal ribs 311; the soil nail structure 2 comprises a soil nail body 21 and a soil nail slurry 22, wherein the soil nail slurry 22 is also made of cement mortar; the soil nail body 21 comprises a rod body 211 and an end rod 212, wherein the length of the end rod 212 is not smaller than the width of the rib frame 31 and is not larger than the diameter of the cross section of the soil nail structure 2; the end rod 212 is arranged at the end part of the rod body 211 and is perpendicular to the rod body 211, so that the soil nail body 21 is T-shaped, the soil nail body 21 is clamped with the rib body frame 31 through the end rod 212, the soil nail rod body 211 penetrates through the interval between the two longitudinal ribs 311, and the end rod 212 is arranged at one side of the rib body frame 31 far away from the foundation pit side slope 13 and is perpendicular to the longitudinal ribs 311.
Further, the utility model, when in use, needs to be implemented by the following steps: firstly, processing a soil nail rod body 211 with an end rod 212 and processing a rib frame 31; then, forming a pile 3 hole mechanically or manually; digging a foundation pit, repairing a side slope 13, and forming soil nail holes mechanically or manually; placing the rib frame 31 into the hole of the pile 3, wherein the plane or the projection surface of the rib frame 31 is vertical to the soil nail rod body 211; then, inserting the soil nail rod body 211 with the end rod 212 into the soil nail hole, and when the rib frame 31 in the hole of the pile 3 is straightened, keeping the end rod 212 parallel to the longitudinal rib 311 of the rib frame 31 so as to ensure that the end rod 212 passes through the rib frame 31, and then rotating the end rod 212 clockwise or anticlockwise by 90 degrees after passing through the trapezoid frame so as to reach a state perpendicular to the longitudinal rib 311, thereby realizing effective connection between the soil nail and the rib frame 31; and (3) pouring concrete or cement slurry or cement mortar into the holes of the piles 3, grouting in the soil nail holes, and finally, constructing the soil nail concrete surface layer 4.
The foregoing is merely illustrative of preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any changes or substitutions that would occur to those skilled in the art within the scope of the present utility model are intended to be included in the scope of the present utility model.
Claims (8)
1. The utility model provides a trapezoidal compound soil nail wall supporting construction, includes foundation ditch, its characterized in that: the foundation pit comprises a slope top (11), a pit bottom (12), a side slope (13) and a post-slope soil body (14), wherein a concrete surface layer (4) is arranged on the surface of the side slope (13); the soil nailing device also comprises a plurality of soil nailing structures (2) and piles (3) for supporting the foundation pit;
the pile (3) is arranged below the ground of the foundation pit slope top (11) and is inclined towards the foundation pit slope (13); the pile (3) comprises a rib body frame (31) and pile slurry (32), the rib body frame (31) comprises two longitudinal ribs (311) which are arranged in the pile (3) in a penetrating way, and a plurality of transverse ribs (312) are arranged between the two longitudinal ribs (311);
the soil nail structure (2) is arranged in a post-slope soil body (14) of the foundation pit, one end of the soil nail structure (2) is arranged on the surface of a foundation pit slope (13), and the other end of the soil nail structure is communicated with the pile (3); the soil nail structure (2) comprises a soil nail body (21) and a soil nail slurry body (22), wherein the soil nail body (21) comprises a rod body (211) and an end rod (212), the end rod (212) is arranged at the end part of the rod body (211) and is perpendicular to the rod body (211), the soil nail body (21) is in a T shape, and the soil nail body (21) is clamped with the rib body frame (31) through the end rod (212).
2. A trapezoidal composite soil nailing wall supporting structure according to claim 1, characterized in that the soil nailing structures (2) are arranged at least three, at equal intervals and parallel to each other.
3. A trapezoidal composite soil nailing wall supporting structure according to claim 1, characterized in that the end of the soil nailing structure (2) which is in communication with the piles (3) is inclined downwards, and the included angle of the soil nailing structure (2) and the horizontal plane is 5 ° -15 °.
4. A trapezoidal composite soil nailing wall support structure according to claim 1 wherein the length of the lower soil nailing structure (2) is greater than the length of the upper soil nailing structure (2).
5. A trapezoidal composite soil nailing wall supporting structure according to claim 1, characterized in that the soil nailing rod body (211) passes through the interval between two longitudinal ribs (311), and the end rod (212) is arranged at one side of the rib body frame (31) far away from the foundation pit side slope (13) and is vertical to the longitudinal ribs (311).
6. A trapezoidal composite soil nailing wall retaining structure in accordance with claim 1 wherein the length of the end bars (212) is no less than the width of the rib cage (31) and no greater than the diameter of the cross section of the soil nailing structure (2).
7. A trapezoidal composite soil nailing wall support structure according to claim 1 wherein the depth of the bottom end of the pile (3) in the soil body is greater than the depth of the foundation pit.
8. A trapezoidal composite soil nailing wall construction according to claim 1 wherein the soil nailing slurry (22) and the stake slurry (32) are both made of cement mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322321025.9U CN220377332U (en) | 2023-08-29 | 2023-08-29 | Trapezoidal composite soil nailing wall supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322321025.9U CN220377332U (en) | 2023-08-29 | 2023-08-29 | Trapezoidal composite soil nailing wall supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220377332U true CN220377332U (en) | 2024-01-23 |
Family
ID=89564251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322321025.9U Active CN220377332U (en) | 2023-08-29 | 2023-08-29 | Trapezoidal composite soil nailing wall supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220377332U (en) |
-
2023
- 2023-08-29 CN CN202322321025.9U patent/CN220377332U/en active Active
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