CN217925275U - Repeated dismounting guardrail for edge of deep foundation pit trestle - Google Patents
Repeated dismounting guardrail for edge of deep foundation pit trestle Download PDFInfo
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- CN217925275U CN217925275U CN202122632109.5U CN202122632109U CN217925275U CN 217925275 U CN217925275 U CN 217925275U CN 202122632109 U CN202122632109 U CN 202122632109U CN 217925275 U CN217925275 U CN 217925275U
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- steel pipe
- guardrail
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- foundation pit
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Abstract
The utility model relates to a repeated dismounting guardrail used for the edge of a deep foundation pit trestle; the concrete water stop ridge comprises an embedded steel pipe which is embedded in a concrete water stop ridge in advance, wherein the embedded steel pipe comprises a clamping groove and a cap; the lower end of the connecting steel pipe is inserted into the embedded steel pipe, and the upper end of the connecting steel pipe is inserted into the protective steel pipe; the connecting steel pipe comprises omega-shaped clamping ribs, a connecting steel pipe body, connecting bolt holes, connecting bolts and clamping rib holes; the protective steel pipe comprises a steel pipe body, a fixing bolt, a connecting nut and a connecting bolt hole; the protection steel pipe is connected with the customization guardrail, and the customization guardrail contains the reinforcing bar net, keeps off the sole, the connecting plate, square pipe. Compared with the traditional foundation pit edge protection device, the foundation pit edge protection device is convenient and free to disassemble and assemble, safe, durable, strong in horizontal and vertical force bearing capacity, good in protection effect, capable of being repeatedly used, and capable of effectively reducing the cost of safety measures.
Description
Technical Field
The utility model relates to a construction technical field specifically is a repeated dismouting guardrail that is used for deep basal pit landing stage to face limit.
Background
At present, urban buildings form a strategy of developing towards high altitude and underground, the near-edge protection amount of a foundation pit is increased more and more in the construction process, and the foundation pit is assembled and disassembled very frequently. At present, the near-edge protection form of the deep foundation pit is more, two main ways are summarized, one is that a steel pipe guardrail is adopted, the fixed end of the guardrail adopts a reserved hole form, but for the operation surface which is frequently subjected to earth excavation and support dismantling, the reserved hole is easily plugged by earth and concrete blocks, the cleaning is difficult, and the inconvenience is brought to repeated disassembly and assembly; this kind of guardrail can't bear perpendicular ascending effort, causes to drop very easily after receiving vertical power, and the foundation ditch that falls into causes the object to strike the accident, and safeguard measure has become a big danger source, and the steel pipe formula prevents that the railing is relatively poor in the aspect of the less object of protection effect. The other type is a grid type protective fence, the guardrail upright posts are fixed through expansion bolts arranged on concrete, the mode has the defects that the expansion bolts fixed in the concrete are frequently damaged in the soil excavation process, the expansion bolts are frequently damaged in the assembling and disassembling process, the expansion bolts are frequently damaged in the disassembling and assembling process, the expansion bolts need to be implanted again when the guardrail recovers, inconvenience is caused to construction, the economy is poor, and the capacity of bearing horizontal acting force of the guardrail arranged in the mode is poor. Therefore, a safe and durable edge protection device which can be repeatedly assembled and disassembled is urgently needed.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned defect, provide one kind and be convenient for implement, the protecting effect is good, but reuse can effectively reduce the guardrail of safety measure cost.
In order to achieve the above object, the present invention is realized as follows:
a repeatedly disassembled guardrail for the edge of a deep foundation pit trestle comprises an embedded steel pipe (4) embedded in a concrete water stop ridge (5), wherein the embedded steel pipe (4) comprises a clamping groove (41) and a cap (42); the lower end of the connecting steel pipe (2) is inserted into the embedded steel pipe (4), and the upper end of the connecting steel pipe is inserted into the protective steel pipe (1); the connecting steel pipe (2) comprises omega-shaped clamping ribs (21), a connecting steel pipe body (22), first connecting bolt holes (23), connecting bolts (24) and clamping rib holes (25); the protective steel pipe (1) comprises a steel pipe body (11), a fixing bolt (12), a connecting nut (13) and a second connecting bolt hole (14); protection steel pipe (1) is connected with customization guardrail (3), customization guardrail (3) contain reinforcing bar net (31), keep off sole (32), connecting plate (33), square pipe (34).
Above-mentioned a repeated dismouting guardrail that is used for deep basal pit landing stage to face limit, concrete operation process as follows:
1: pre-burying the steel pipe (4) when the concrete water stop bank (5) is poured, and placing a cap cover (42);
2: after the strength of the water stop ridge (5) meets the requirement, the cap cover (42) is taken down, the connecting steel pipe body (22) is inserted into the embedded steel pipe (4), the omega-shaped clamping rib (21) is extruded by hands, the clamping end of the omega-shaped clamping rib (21) penetrates through the clamping rib hole (25) and enters the clamping groove (41) by means of self elasticity, and the embedded steel pipe (4) is fixedly connected with the connecting steel pipe (2);
3: the connecting steel pipe (2) is inserted into the protective steel pipe body (11), and the connecting bolt (24) penetrates through the connecting bolt hole (23) and the connecting bolt hole (14) to connect and fix the connecting steel pipe (2) and the protective steel pipe (1);
4: sequentially installing protective steel pipes (1) according to the sequence;
5: the customized guardrail (3) is respectively connected with the fixing bolts (12) on the protective steel pipes (1) through connecting plates (33) arranged on two sides and is fixed by connecting nuts (13);
6: sequentially installing customized guardrails (3) according to the sequence;
7: when the earthwork excavation and the support removal are carried out, the guardrails are reversely removed in sequence, and a cap (42) is placed to prevent soil and broken concrete blocks from entering.
Compared with the traditional foundation pit edge-facing protection device, the foundation pit edge-facing protection device is convenient and free to assemble and disassemble, safe, durable, strong in horizontal and vertical force bearing capacity, good in protection effect, capable of being repeatedly used and capable of effectively reducing the cost of safety measures.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the pre-buried steel pipe (4) of the present invention.
Fig. 3 is a sectional view of the connecting steel pipe (2) of the present invention.
Fig. 4 is a cross-sectional view of the connecting steel pipe (2) of the present invention in another direction.
Fig. 5 is a schematic view of the protective steel pipe (1) of the present invention.
Fig. 6 is a node map of the customized guardrail (3) and the protective steel tube (1).
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1 to 6, a repeatedly detachable guardrail for a deep foundation pit trestle edge comprises an embedded steel pipe (4) embedded in a concrete water stop sill (5), wherein the embedded steel pipe (4) comprises a clamping groove (41) and a cap (42); the lower end of the connecting steel pipe (2) is inserted into the embedded steel pipe (4), and the upper end of the connecting steel pipe is inserted into the protective steel pipe (1); the connecting steel pipe (2) comprises omega-shaped clamping ribs (21), a connecting steel pipe body (22), first connecting bolt holes (23), connecting bolts (24) and clamping rib holes (25); the protective steel pipe (1) comprises a steel pipe body (11), a fixing bolt (12), a connecting nut (13) and a second connecting bolt hole (14); protection steel pipe (1) is connected with customization guardrail (3), customization guardrail (3) contain reinforcing bar net (31), keep off sole (32), connecting plate (33), square pipe (34).
Above-mentioned a repeated dismouting guardrail that is used for deep basal pit landing stage to face limit, concrete operation process is as follows:
1: embedding the steel pipe (4) in advance when the concrete water stop ridge (5) is poured, and placing a cap (42);
2: after the strength of the water stop ridge (5) meets the requirement, the cap cover (42) is taken down, the connecting steel pipe body (22) is inserted into the embedded steel pipe (4), the omega-shaped clamping rib (21) is extruded by hands, the clamping end of the omega-shaped clamping rib (21) penetrates through the clamping rib hole (25) and enters the clamping groove (41) by means of self elasticity, and the embedded steel pipe (4) is fixedly connected with the connecting steel pipe (2);
3: the connecting steel pipe (2) is inserted into the protective steel pipe body (11), and the connecting bolt (24) penetrates through the connecting bolt hole (23) and the connecting bolt hole (14) to connect and fix the connecting steel pipe (2) and the protective steel pipe (1);
4: sequentially installing protective steel pipes (1) according to the sequence;
5: the customized guardrail (3) is respectively connected with the fixing bolt (12) on the protective steel pipe (1) through the connecting plate (33) arranged on two sides and is fixed by the connecting nut (13);
6: sequentially installing customized guardrails (3) according to the sequence;
7: when the earthwork excavation and the support removal are carried out, the guardrails are reversely removed in sequence, and a cap (42) is placed to prevent soil and broken concrete blocks from entering.
Compared with the traditional foundation pit edge protection device, the foundation pit edge protection device is convenient and free to disassemble and assemble, safe, durable, strong in horizontal and vertical force bearing capacity, good in protection effect, capable of being repeatedly used, and capable of effectively reducing the cost of safety measures.
Claims (1)
1. The utility model provides a repeated dismouting guardrail that is used for deep basal pit landing stage to face limit, characterized by: the concrete water stop sill comprises an embedded steel pipe (4) embedded in a concrete water stop sill (5), wherein the embedded steel pipe (4) comprises a clamping groove (41) and a cap cover (42); the lower end of the connecting steel pipe (2) is inserted into the embedded steel pipe (4), and the upper end of the connecting steel pipe is inserted into the protective steel pipe (1); the connecting steel pipe (2) comprises omega-shaped clamping ribs (21), a connecting steel pipe body (22), first connecting bolt holes (23), connecting bolts (24) and clamping rib holes (25); the protective steel pipe (1) comprises a steel pipe body (11), a fixing bolt (12), a connecting nut (13) and a second connecting bolt hole (14); protection steel pipe (1) is connected with customization guardrail (3), customization guardrail (3) contain reinforcing bar net (31), keep off sole (32), connecting plate (33), square pipe (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122632109.5U CN217925275U (en) | 2021-10-30 | 2021-10-30 | Repeated dismounting guardrail for edge of deep foundation pit trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122632109.5U CN217925275U (en) | 2021-10-30 | 2021-10-30 | Repeated dismounting guardrail for edge of deep foundation pit trestle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217925275U true CN217925275U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122632109.5U Active CN217925275U (en) | 2021-10-30 | 2021-10-30 | Repeated dismounting guardrail for edge of deep foundation pit trestle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217925275U (en) |
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2021
- 2021-10-30 CN CN202122632109.5U patent/CN217925275U/en active Active
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