CN220284851U - Supporting construction based on backfill side slope - Google Patents
Supporting construction based on backfill side slope Download PDFInfo
- Publication number
- CN220284851U CN220284851U CN202321896071.5U CN202321896071U CN220284851U CN 220284851 U CN220284851 U CN 220284851U CN 202321896071 U CN202321896071 U CN 202321896071U CN 220284851 U CN220284851 U CN 220284851U
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- Prior art keywords
- anchor
- slope
- anchor pipe
- pipe
- backfill
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 title description 8
- 239000002689 soil Substances 0.000 claims abstract description 25
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 239000011440 grout Substances 0.000 claims description 8
- 239000011378 shotcrete Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002002 slurry Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 241000842962 Apoda limacodes Species 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
The utility model discloses a supporting structure based on backfill slope, which comprises a grouting hole arranged on the slope and an anchor pipe inserted in the grouting hole, wherein a blocking plug is arranged between an opening of the grouting hole and the anchor pipe, and a grouting hole and a barb structure are arranged on the surface of the anchor pipe; the side slope is paved with a concrete panel connected with an anchor pipe, and one end of the anchor pipe penetrates through the concrete panel and is provided with an anchor sealing structure. Compared with the traditional soil nailing wall, the special design of the barb structure on the anchor pipe obviously increases the biting force and friction force of the anchor pipe and grouting soil, greatly improves the tensile pulling force of the anchor pipe, has good bearing capacity and deformation resistance, can provide larger resistance to soil deformation, improves the reliability of the supporting structure, can meet the supporting safety requirement, and can realize the aim of backfilling steep high slope firm temporary supporting with lower cost.
Description
Technical Field
The utility model belongs to the technical field of engineering construction side slope support, and particularly relates to a support structure based on a backfill side slope.
Background
In the engineering construction process, an inclined steep slope is often generated due to large change of surrounding environment of a building to be constructed and uneven relief. In order to ensure the safety of the side slope and the environment thereof, the side slope is subjected to side slope reconstruction supporting, reinforcing and protecting measures. In some positions, the original space is narrow, so that the improved slope becomes very steep in order to improve the utilization rate of the surrounding space, and particularly the backfill soil slope is very poor in self-stability, so that the support cost and the construction difficulty are both obviously increased.
The prior art CN214614126U discloses a side slope supporting structure with an anchor cable penetrating deep backfill layer protection device, which comprises an anti-slide pile and a plurality of anchor cables anchored on the anti-slide pile; the free section part of the anchor cable is fully or partially filled with a backfill layer; a rigid sleeve is arranged on the free section of the anchor cable; the top end of the rigid sleeve is buried into the anti-slide pile, and the bottom end of the rigid sleeve extends to exceed the backfill layer. The utility model is characterized in that a rigid sleeve is arranged on the free section of the anchor cable; the top end of the rigid sleeve is embedded into the anti-slide pile, and the bottom end of the rigid sleeve extends to exceed the backfill soil layer; the anchor cable with the rigid sleeve sleeved on the free section can completely resist adverse factors such as pulling crack and shearing when backfill soil is solidified and subsided, so that the anchor cable backfill soil section is ensured not to be corroded or bent, and the design, specification and technical standard requirements are completely met. The rigid sleeve is simple and convenient to operate and low in cost, and has a good protection effect on the anchor cable penetrating through the deep backfill layer.
Although the function of side slope support is realized in the above patent, the soil deformation is easy to deform at the soft position of the soil layer, the anchor cable can not provide effective tensile pulling force, the resistance to the soil deformation is limited, the reliability of the support structure is low, and the support strength possibly cannot meet the safety requirement.
Disclosure of Invention
The utility model aims to provide a supporting structure based on a backfill slope, which is used for solving the problems in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the supporting structure based on the backfill slope comprises a grouting hole arranged on the slope and an anchor pipe inserted in the grouting hole, wherein a grouting plug is arranged between an opening of the grouting hole and the anchor pipe, and a grouting hole and a barb structure are arranged on the surface of the anchor pipe; the side slope is paved with a concrete panel connected with an anchor pipe, and one end of the anchor pipe penetrates through the concrete panel and is provided with an anchor sealing structure.
As an optional implementation manner of the foregoing technical solution, the barb structure includes a plurality of barb sets, and the plurality of barb sets are spirally arranged along a length direction of the anchor tube.
As an optional implementation manner of the above technical scheme, the barb set comprises at least two barbs, and the at least two barbs are annularly distributed on the surface of the anchor tube.
As an alternative to the above, the barbs are welded to the surface of the anchor tube.
As an optional implementation manner of the technical scheme, an anchor point is arranged at one end of the anchor pipe away from the anchor sealing structure.
As an optional implementation manner of the above technical solution, the concrete panel includes a reinforcing mesh and sprayed concrete wrapping the reinforcing mesh, and the reinforcing mesh is connected with the anchor pipe.
As an optional implementation manner of the technical scheme, reinforcing ribs and positioning ribs are arranged in the sprayed concrete, and the reinforcing ribs are connected with the anchor pipes.
As an optional implementation manner of the above technical solution, a steel backing plate is arranged between the anchor pipe and the concrete panel.
As an optional implementation manner of the technical scheme, a water interception ditch is arranged at the bottom end of the side slope.
As an optional implementation manner of the above technical solution, a slope rate of the slope is 1:0.3-1:1.
as an optional implementation manner of the technical scheme, one end of the barb extends obliquely upwards and covers the grout outlet so as to prevent soil from blocking the grout outlet.
The beneficial effects of the utility model are as follows:
the utility model provides a supporting structure based on a backfill side slope, wherein a slurry outlet hole and a barb structure are arranged on the surface of an anchor pipe, a concrete panel connected with the anchor pipe is laid on the side slope, and one end of the anchor pipe penetrates through the concrete panel and is provided with an anchor sealing structure. Compared with the traditional soil nailing wall, the special design of the barb structure on the anchor pipe obviously increases the biting force and friction force of the anchor pipe and grouting soil, greatly improves the tensile pulling force of the anchor pipe, has good bearing capacity and deformation resistance, can provide larger resistance to soil deformation, improves the reliability of the supporting structure, can meet the supporting safety requirement, and can realize the aim of backfilling steep high slope firm temporary supporting with lower cost.
Drawings
FIG. 1 is a schematic view of an anchor tube layout in accordance with one embodiment of the present utility model;
FIG. 2 is a schematic view of an anchor tube installation structure in one embodiment of the present utility model;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: 1-side slope; 2-grouting holes; 3-anchor tube; 4-plugging; 5-a slurry outlet hole; 6-an anchor sealing structure; 7-barb; 8-reinforcing steel bar meshes; 9-spraying concrete; 10-reinforcing ribs; 11-positioning ribs; 12-a steel backing plate; 13-intercepting ditches.
Detailed Description
Examples
As shown in fig. 1-3, the present embodiment provides a supporting structure based on a backfill slope 1, which is suitable for a backfill stratum with better cement slurry diffusion, and adopts a construction mode of excavating a section of support and a section of support, and specifically includes: the method comprises the steps of excavating a side slope 1 in a segmented and layered mode, arranging a barbed steel pipe, grouting the barbed steel pipe, connecting net piece reinforcing ribs 10, spraying concrete 9, detecting the drawing strength of the steel pipe, and excavating a next layer of side slope 1.
As shown in fig. 2, the support structure comprises a grouting hole 2 arranged on a side slope 1 and an anchor pipe 3 inserted in the grouting hole 2, a plugging plug 4 is arranged between an opening of the grouting hole 2 and the anchor pipe 3, and a grouting hole 5 and a barb structure are arranged on the surface of the anchor pipe 3. One end of the anchor pipe 3 goes deep into the backfill earth stratum, grouting liquid is filled into the anchor pipe 3, the grouting liquid is discharged through the grouting holes 5 and is filled between the anchor pipe 3 and the grouting holes 2, the anchor pipe 3 and the backfill earth stratum are firmly together, and the gap between the anchor pipe 3 and the openings of the grouting holes 2 can be quickly sealed by the grouting plugs 4, so that the grouting liquid is prevented from overflowing. The barb structure can effectively increase the biting force and friction force of the anchor pipe 3 and grouting soil, and greatly improves the tensile pulling force of the anchor pipe 3.
The side slope 1 is paved with a concrete panel connected with the anchor pipe 3, one end of the anchor pipe 3 penetrates through the concrete panel and is provided with an anchor sealing structure 6, and the structural stability of the anchor pipe 3 is improved. The bottom of the side slope 1 is provided with a water interception ditch 13, and the slope 1 slope rate of the side slope 1 is 1:0.3-1:1.
grouting process, by the one end that anchor pipe 3 stretched out grouting hole 2 to the slip casting in anchor pipe 3, cement mortar pours into the outer wall of anchor pipe 3 and grouting hole 2 in the space between through play slurry hole 5 to the inside and outside space with anchor pipe 3 fills up to wrap up barb structure, barb structure can prevent effectively that anchor pipe 3 from pulling out, has improved the resistance to plucking ability, has ensured the stability of side slope 1 soil body. Moreover, by arranging the grouting plugs 4 at the openings of the grouting holes 2, the gap between the anchor pipe 3 and the grouting holes 2 can be conveniently and rapidly sealed, the sealing effect is good, and the slurry can be effectively prevented from overflowing. In addition, the anchor sealing structure 6 is arranged at one end of the anchor pipe 3 extending out of the concrete panel, so that the anchor pipe 3 can be prevented from being corroded. The utility model has simple structure, convenient construction, strong pulling resistance and good support stability to the side slope 1.
As shown in fig. 3, wherein the barb structure comprises a plurality of barb sets, the plurality of barb sets being helically disposed along the length of the anchor tube 3. Preferably, the barb set comprises at least two barbs 7, wherein the at least two barbs 7 are annularly distributed on the surface of the anchor tube 3, and the barbs 7 are welded on the surface of the anchor tube 3 to ensure the strength of the anchor tube.
In order to facilitate the insertion of the anchor tube 3 into the grouting holes 2, the end of the anchor tube 3 remote from the anchor sealing structure 6 is provided with an anchor point. One end of the barb 7 extends obliquely upwards and covers the grout outlet 5 so as to prevent soil from blocking the grout outlet 5.
In this embodiment, the concrete panel includes a reinforcing mesh 8 and sprayed concrete 9 surrounding the reinforcing mesh 8, and the reinforcing mesh 8 is connected to the anchor pipe 3. Preferably, the sprayed concrete 9 is internally provided with a reinforcing rib 10 and a positioning rib 11, and the reinforcing rib 10 is connected with the anchor pipe 3, so that the stability of the anchor pipe 3 is further improved. A steel backing plate 12 is arranged between the anchor pipe 3 and the concrete panel. The steel backing plate 12 is used to locate the anchor pipe 3 and to disperse the pressure exerted by the anchor pipe 3 on the concrete panel.
According to the utility model, the anchor pipe 3 and the barbs are combined to form the barb steel flower pipe, so that the barb steel flower pipe can replace a traditional reinforced soil nail, a supporting mode of combining the barb steel flower pipe, cement slurry, a reinforced net sheet 8, reinforcing ribs 10 and sprayed concrete 9 is utilized, a section of supporting is excavated, and the supporting cost of the steep slope 1 can be effectively reduced. Compared with the traditional soil nailing wall, the special method of the barbed steel pipe obviously increases the biting force and friction force between the barbed steel pipe and the grouting soil body, and greatly improves the tensile pulling force of the anchor pipe 3. One end of the barb 7 extends obliquely upwards and covers the grout outlet 5, and soil body can be prevented from entering and blocking the grout outlet 5 in the process of placing the barb steel pipe. The supporting structure has good bearing capacity and deformation resistance, can provide larger resistance to soil deformation, improves the reliability of the supporting structure, can meet the supporting safety requirement, and can realize the aim of stabilizing temporary supporting of the backfilled soil steep high slope 1 with lower cost.
The supporting structure adopts the following steps when in concrete construction:
1. the soil quality of the side slope 1 is ascertained, and cement slurry suitable for the stratum is prepared.
2. And excavating the side slope 1. Slope 1 can be steepest up to 1:0.3, wherein the maximum height is not more than 7m, and the length of the barbed steel pipe is preferably 5m. The excavation height of each layer of the side slope 1 is not more than 1.5m, and the one-time excavation length of the side slope 1 is controlled to be 25m. The timeliness of the support is emphasized.
3. And manufacturing the barbed steel pipe. The diameter of the barbed steel pipe is 48mm, the distance between the barbed steel pipe and the barbed steel pipe is 500mm, the barb 7 is arranged, and the diameter of the pulp outlet 5 is 10mm. The angle is beaten to the barb steel festoon pipe and is 15 with horizontal contained angle and arranges, and adjacent barb steel festoon pipe level lays the interval and is 1m, and adjacent barb steel festoon pipe vertically lays the interval and is 1.5m.
4. Grouting in the barbed steel pipe. The cement slurry is used for reinforcing the stratum, and the tensile strength of the barbed steel pipe is not less than 100kN and needs to be tested and detected.
5. The reinforcing ribs 10 are firmly welded with the barbed steel flower pipes and the reinforcing steel mesh 8, and the barbed steel flower pipes, the reinforcing steel mesh 8, the reinforcing ribs 10 and the sprayed concrete 9 are connected into a whole, so that the whole supporting effect is improved.
In the description of the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be fixedly connected, detachably connected, or integrally formed; may be a mechanical or electrical connection; may be directly connected or indirectly connected through an intermediate medium, and may be in communication with the inside of two elements or in interaction with the two elements, the specific meaning of the terms being understood by those skilled in the art. Furthermore, the particular features, structures, etc. described in the examples are included in at least one embodiment and those of skill in the art may combine features of different embodiments without contradiction. The scope of the present utility model is not limited to the above-described specific embodiments, and embodiments which can be suggested to those skilled in the art without inventive effort according to the basic technical concept of the present utility model are all within the scope of the present utility model.
Claims (10)
1. The supporting structure based on the backfill slope is characterized by comprising a grouting hole (2) arranged on the slope (1) and an anchor pipe (3) inserted into the grouting hole (2), wherein a blocking plug (4) is arranged between an opening of the grouting hole (2) and the anchor pipe (3), and a grouting hole (5) and a barb structure are arranged on the surface of the anchor pipe (3); a concrete panel connected with the anchor pipe (3) is laid on the side slope (1), and one end of the anchor pipe (3) penetrates through the concrete panel and is provided with an anchor sealing structure (6).
2. The backfill slope-based support structure according to claim 1, characterized in that the barb structure comprises a plurality of barb sets, which are helically arranged along the length of the anchor tube (3).
3. The supporting structure based on backfill slope according to claim 2, characterized in that the barb set comprises at least two barbs (7), at least two barbs (7) being annularly arranged on the surface of the anchor tube (3).
4. A backfill slope based support structure according to claim 3, wherein the barbs (7) are welded to the surface of the anchor tube (3).
5. The supporting structure based on backfill slope according to claim 1, characterized in that the end of the anchor tube (3) far away from the anchor sealing structure (6) is provided with an anchor point.
6. The backfill slope-based support structure according to claim 1, characterized in that the concrete panel comprises a reinforcing mesh (8) and sprayed concrete (9) wrapping the reinforcing mesh (8), the reinforcing mesh (8) being connected to the anchor pipe (3).
7. The supporting structure based on backfill slope according to claim 6, wherein the inside of the sprayed concrete (9) is provided with a reinforcing rib (10) and a positioning rib (11), and the reinforcing rib (10) is connected with the anchor pipe (3).
8. The supporting structure based on backfill slope according to claim 1, characterized in that a steel backing plate (12) is arranged between the anchor pipe (3) and the concrete panel.
9. The supporting structure based on backfill slope according to claim 1, characterized in that the bottom end of the slope (1) is provided with a water interception ditch (13); the slope rate of the side slope (1) is 1:0.3-1:1.
10. a backfill slope based support structure according to claim 3, wherein one end of the barb (7) extends obliquely upwards and covers the grout outlet (5) to prevent soil from blocking the grout outlet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321896071.5U CN220284851U (en) | 2023-07-18 | 2023-07-18 | Supporting construction based on backfill side slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321896071.5U CN220284851U (en) | 2023-07-18 | 2023-07-18 | Supporting construction based on backfill side slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220284851U true CN220284851U (en) | 2024-01-02 |
Family
ID=89326222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321896071.5U Active CN220284851U (en) | 2023-07-18 | 2023-07-18 | Supporting construction based on backfill side slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220284851U (en) |
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2023
- 2023-07-18 CN CN202321896071.5U patent/CN220284851U/en active Active
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