CN216765919U - Municipal works foundation ditch enclosure - Google Patents
Municipal works foundation ditch enclosure Download PDFInfo
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- CN216765919U CN216765919U CN202220405155.3U CN202220405155U CN216765919U CN 216765919 U CN216765919 U CN 216765919U CN 202220405155 U CN202220405155 U CN 202220405155U CN 216765919 U CN216765919 U CN 216765919U
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- foundation pit
- precast slab
- ground
- limiting part
- connecting rod
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Abstract
The application relates to a municipal engineering foundation pit support, which relates to the field of foundation pit support and comprises a precast slab arranged on the ground, a connecting rod arranged on the precast slab in a penetrating way and a concrete layer; a gap is reserved between the prefabricated plate and the side wall of the foundation pit, a through hole is formed in the prefabricated plate, the connecting rod penetrates through the through hole, a limiting part is arranged on the connecting rod and is located on one side, away from the side wall of the foundation pit, of the prefabricated plate, the limiting part is abutted to the prefabricated plate, the connecting rod is inserted into the ground, and the concrete layer is located between the prefabricated plate and the side wall of the foundation pit. This application has improved foundation ditch enclosure's stability.
Description
Technical Field
The application relates to foundation pit enclosure field especially relates to a municipal works foundation pit enclosure.
Background
With the continuous progress of economy and technology, more and more cities carry out the construction of municipal works, particularly, in some large-scale cities, the construction of lines such as subways is carried out, when some subway lines are planned and constructed, a larger foundation pit needs to be played on a construction site, at the moment, the periphery of the foundation pit needs to be enclosed, at present, when the enclosure of the foundation pit is carried out, workers support some templates around the foundation pit, then concrete is poured between the templates and the foundation pit, the foundation pit is enclosed after the concrete is solidified, and then the templates are disassembled. However, the construction method causes the solidified concrete to easily fall off and has poor stability.
Disclosure of Invention
In order to improve the stability of foundation ditch enclosure, this application provides a municipal works foundation ditch enclosure.
The application provides a municipal works foundation ditch enclosure adopts following technical scheme:
a municipal engineering foundation pit support comprises a precast slab arranged on the ground, a connecting rod and a concrete layer, wherein the connecting rod and the concrete layer are arranged on the precast slab in a penetrating manner;
a gap is reserved between the precast slab and the side wall of the foundation pit, a through hole is formed in the precast slab, the connecting rod penetrates through the through hole, a limiting part is arranged on the connecting rod and is located on one side, away from the side wall of the foundation pit, of the precast slab, the limiting part is abutted to the precast slab, the connecting rod is inserted into the ground, and the concrete layer is located between the precast slab and the side wall of the foundation pit.
By adopting the technical scheme, after the foundation pit is dug, a worker places a plurality of prefabricated plates into the foundation pit, then penetrates the connecting rod through the through hole in the prefabricated plate, enables the limiting part on the connecting rod to abut against the prefabricated plate, then pours concrete between the prefabricated plate and the side wall of the foundation pit, forms a concrete layer after the concrete is solidified, forms the enclosure of the foundation pit by the prefabricated plate, the connecting rod and the concrete layer, and improves the stability of the enclosure of the foundation pit because the connecting rod extends into the soil on the side wall of the foundation pit.
Optionally, the connecting rod is a round rod, the limiting part is a circular plate, the limiting part is coaxial with the connecting rod, and the end face of the limiting part close to the prefabricated plate is tightly attached to the prefabricated plate.
By adopting the technical scheme, the connecting rod can be conveniently inserted into soil by workers, the limiting part can be conveniently abutted against the prefabricated plate, the prefabricated plate is pulled by the connecting plate and the limiting part, the stability of the prefabricated plate when concrete is poured between the prefabricated plate and the inner wall of the foundation pit is improved, and the stability of foundation pit enclosure is further improved.
Optionally, a circular groove is formed in the prefabricated plate, the groove is communicated with the through hole, the diameter of the groove is the same as that of the limiting portion, and the limiting portion is completely located in the groove.
By adopting the technical scheme, the circular groove is reserved on the prefabricated plate, and then when the limiting part is abutted to the prefabricated plate, the limiting part is completely positioned in the groove, so that the limiting part can be abutted to the prefabricated plate better.
Optionally, a reinforcement cage is arranged in the concrete layer.
By adopting the technical scheme, the strength of the concrete layer is improved, and further the stability of the concrete layer is improved, so that the stability of the foundation pit enclosure is improved.
Optionally, the prefabricated slab further comprises an ejector rod, the ejector rod is located at the upper half part in the concrete layer, one end of the ejector rod extends into the ground, the other end of the ejector rod abuts against the prefabricated slab, and the ejector rod is located right above the reinforcement cage.
By adopting the technical scheme, the precast slabs are not easy to incline towards the side wall direction of the foundation pit, the precast slabs are jacked by the jacking rods, the stability of the precast slabs when concrete is poured between the precast slabs and the side wall of the foundation pit is also improved, and the stability of foundation pit enclosure is further improved.
Optionally, the prefabricated slab further comprises a supporting rod arranged on the ground, wherein one end of the supporting rod is abutted to the ground, and the other end of the supporting rod is abutted to one side, far away from the side wall of the foundation pit, of the prefabricated slab.
By adopting the technical scheme, when the concrete is poured between the precast slab and the side wall of the foundation pit, the support rod is arranged on the ground to prop against the precast slab on the basis that the limit part on the connecting rod pulls the precast slab, so that the stability of the precast slab during the concrete pouring is further improved, and the stability of the foundation pit enclosure is improved.
Optionally, the prefabricated plate support structure further comprises a base arranged on the ground, one end, far away from the prefabricated plate, of the support rod is fixed on the base, and the lower half portion of the base is located in the ground.
By adopting the technical scheme, the stability of the supporting rod on the ground is improved, so that the stability of the supporting rod for supporting the prefabricated plate is improved.
Optionally, a wedge is arranged on the base in a penetrating mode, and the wedge penetrates through the base and is inserted into the ground.
By adopting the technical scheme, the stability of the base on the ground is improved, and further the stability of the supporting rod is improved, so that the stability of the supporting rod for the prefabricated plate is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after the foundation pit is dug, workers place a plurality of prefabricated plates into the foundation pit, then penetrate connecting rods through holes in the prefabricated plates, enable limiting parts on the connecting rods to abut against the prefabricated plates, then the workers pour concrete between the prefabricated plates and the side wall of the foundation pit, form a concrete layer after the concrete is solidified, then the prefabricated plates, the connecting rods and the concrete layer form enclosure of the foundation pit, and the connecting rods penetrate into soil on the side wall of the foundation pit, so that stability of the enclosure of the foundation pit is improved.
2. When concrete is poured between the precast slab and the side wall of the foundation pit, the support rod is arranged on the ground to push the precast slab on the basis that the precast slab is pulled by the limiting part on the connecting rod, so that the stability of the precast slab is further improved when the concrete is poured, and the stability of the foundation pit enclosure is improved.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
FIG. 2 is a schematic view showing the construction of the prefabricated panels.
Fig. 3 is a schematic view of the structure of fig. 1 without concrete being poured.
Description of reference numerals: 11. prefabricating a slab; 111. a through hole; 112. a groove; 12. a connecting rod; 121. a limiting part; 13. a concrete layer; 2. a reinforcement cage; 3. a top rod; 41. a strut; 42. a base; 43. a wedge is provided.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses municipal works foundation ditch enclosure.
Referring to fig. 1 and 2, the municipal engineering foundation pit support comprises a precast slab 11 arranged on the ground at the bottom of the foundation pit, a connecting rod 12 penetrating through the precast slab 11, and a concrete layer 13 poured between the precast slab 11 and the side wall of the foundation pit.
The precast slab 11 is made of concrete slabs, the bottom of the precast slab 11 is vertically inserted into the ground at the bottom of the foundation pit, the precast slab 11 is parallel to the side wall of the foundation pit closest to the precast slab, and the top of the precast slab 11 is flush with the top of the foundation pit. The connecting rod 12 is perpendicular to the precast slab 11, the connecting rod 12 is inserted into soil on the side wall of the foundation pit, the connecting rod 12 is a round rod, a through hole 111 is formed in the precast slab 11, the through hole 111 is a round hole, the diameter of the through hole 111 is slightly larger than that of the connecting rod 12, and the connecting rod 12 penetrates through the through hole 111. The connecting rod 12 is provided with a limiting part 121, the limiting part 121 is a circular plate, the limiting part 121 is coaxial with the connecting rod 12, the diameter of the limiting part 121 is larger than that of the through hole 111, the limiting part 121 is positioned on one side of the precast slab 11 far away from the side wall of the foundation pit, and after the connecting rod 12 is inserted into soil, the limiting part 121 abuts against the precast slab 11. Four connecting rods 12 penetrate through each prefabricated plate 11, and the four connecting rods 12 are uniformly distributed on the prefabricated plates 11.
After the prefabricated slab 11 and the connecting rods 12 are installed, a large gap is formed between the prefabricated slab 11 and the side wall of the foundation pit, then concrete is poured into the gap by workers, after the concrete is solidified, the concrete forms a concrete layer 13, the concrete layer 13 is located between the prefabricated slab 11 and the side wall of the foundation pit, the concrete layer 13 wraps the connecting rods 12 located in the gap between the prefabricated slab 11 and the side wall of the foundation pit, and then the surrounding side walls in the foundation pit are sequentially installed and fixed to form foundation pit enclosure.
Further, referring to fig. 1 and 2, a circular groove 112 is formed in the precast slab 11, the groove 112 is communicated with the through hole 111, the diameter of the groove 112 is larger than that of the through hole 111, the groove 112 is coaxial with the through hole 111, the groove 112 is located on one side of the through hole 111 away from the side wall of the foundation pit, the diameter of the groove 112 is the same as that of the limiting portion 121, or the diameter of the groove 112 is slightly larger than that of the limiting portion 121, the depth of the groove 112 is slightly larger than that of the limiting portion 121, after the connecting rod 12 penetrates through the through hole 111 and is inserted into soil, the whole limiting portion 121 is completely located in the groove 112, and the limiting portion 121 is abutted against the bottom of the groove 112.
Further, referring to fig. 1 and 3, in order to improve the strength of the concrete layer 13, a reinforcement cage 2 is arranged on the ground at the bottom of the foundation pit, the reinforcement cage 2 is located between the precast slab 11 and the side wall of the foundation pit, when concrete is poured, the reinforcement cage 2 is wrapped in the concrete, and then the reinforcement cage 2 and the concrete form the concrete layer 13 together, so that the strength of the concrete layer 13 is improved, and the stability of the whole foundation pit enclosure is improved. The reinforcement cage 2 comprises a plurality of steel bars and binding wires, the steel bars are divided into vertical steel bars vertically inserted into the ground, transverse steel bars perpendicular to the vertical steel bars and longitudinal steel bars perpendicular to the vertical steel bars, the transverse steel bars are perpendicular to the prefabricated plates 11, the longitudinal steel bars are perpendicular to the transverse steel bars, and the binding wires bind and fix the vertical steel bars, the transverse steel bars and the crossing points of the longitudinal steel bars.
Further, referring to fig. 1 and 3, when concrete is poured between the precast slab 11 and the side wall of the foundation pit, in order to improve the stability of the precast slab 11, the foundation pit enclosure further comprises an ejector rod 3, the ejector rod 3 is a round rod, the ejector rod 3 is located right above the reinforcement cage 2, the ejector rod 3 is perpendicular to the precast slab 11, one end of the ejector rod 3 is inserted into soil of the side wall of the foundation pit, the other end of the ejector rod 3 is abutted to the precast slab 11, when construction is performed, a worker places the reinforcement cage 2 near the side wall of the foundation pit, then inserts the ejector rod 3 into the soil of the side wall of the foundation pit, and reserves a part of the ejector rod 3 for supporting the precast slab 11. The prefabricated slab 11 is then inserted into the ground, the connecting rods 12 are inserted through the prefabricated slab 11, and the connecting rods 12 are inserted into the soil of the sidewall of the foundation pit such that the stoppers 121 are positioned in the grooves 112.
Further, referring to fig. 1 and 3, in order to improve the stability of the precast slab 11 when concrete is poured between the precast slab 11 and the side wall of the foundation pit, a support rod 41 is placed on the ground, the support rod 41 is located on a side of the precast slab 11 away from the side wall of the foundation pit, one end of the support rod 41 abuts against the ground, the other end of the support rod 41 abuts against the precast slab 11, and the support rod 41 is placed in an inclined manner.
In order to improve the stability of the strut 41 on the ground, a base 42 is arranged on the ground, the lower half part of the base 42 is buried under the ground, the upper half part of the base 42 is exposed out of the ground, one end of the strut 41 far away from the precast slab 11 is fixedly connected with the top of the base 42, and then the other end of the strut 41 abuts against the precast slab 11. In order to further improve the stability of the base 42 on the ground, four wedges 43 penetrate through the base 42, the four wedges 43 are respectively located at four corner ends of the base 42, the length of each wedge 43 is larger than the height of the base 42, and the wedges 43 are inserted into the ground, so that the stability of the base 42 on the ground is improved, the stability of the support rod 41 for supporting the precast slab 11 is indirectly improved, and the stability of the whole foundation pit enclosure is improved.
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: equivalent changes in 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 municipal works foundation ditch enclosure which characterized in that: comprises a precast slab (11) arranged on the ground, a connecting rod (12) arranged on the precast slab (11) in a penetrating way and a concrete layer (13);
a gap is reserved between the precast slab (11) and the side wall of the foundation pit, a through hole (111) is formed in the precast slab (11), the connecting rod (12) penetrates through the through hole (111), a limiting part (121) is arranged on the connecting rod (12), the limiting part (121) is located on one side, away from the side wall of the foundation pit, of the precast slab (11), the limiting part (121) is abutted to the precast slab (11), the connecting rod (12) is inserted into the ground, and the concrete layer (13) is located between the precast slab (11) and the side wall of the foundation pit.
2. The municipal engineering foundation pit enclosure according to claim 1, wherein: the connecting rod (12) is a round rod, the limiting part (121) is a round plate, the limiting part (121) is coaxial with the connecting rod (12), and the end face, close to the precast slab (11), of the limiting part (121) is tightly attached to the precast slab (11).
3. The municipal engineering foundation pit enclosure according to claim 2, wherein: the prefabricated plate (11) is provided with a circular groove (112), the groove (112) is communicated with the through hole (111), the diameter of the groove (112) is the same as that of the limiting part (121), and the limiting part (121) is completely positioned in the groove (112).
4. The municipal engineering foundation pit enclosure according to claim 3, wherein: and a reinforcement cage (2) is arranged in the concrete layer (13).
5. The municipal engineering foundation pit enclosure according to claim 4, wherein: the concrete precast slab further comprises an ejector rod (3), wherein the ejector rod (3) is positioned at the upper half part in the concrete layer (13), one end of the ejector rod (3) extends into the ground, the other end of the ejector rod is abutted to the precast slab (11), and the ejector rod (3) is positioned right above the steel reinforcement cage (2).
6. The municipal engineering foundation pit enclosure according to claim 1, wherein: the prefabricated slab foundation pit supporting structure is characterized by further comprising a supporting rod (41) arranged on the ground, wherein one end of the supporting rod (41) abuts against the ground, and the other end of the supporting rod (41) abuts against one side, far away from the side wall of the foundation pit, of the prefabricated slab (11).
7. The municipal engineering foundation pit enclosure according to claim 6, wherein: the prefabricated plate support is characterized by further comprising a base (42) arranged on the ground, one end, far away from the prefabricated plate (11), of the support rod (41) is fixed to the base (42), and the lower half portion of the base (42) is located in the ground.
8. The municipal engineering foundation pit support according to claim 7, wherein: a wedge (43) penetrates through the base (42), and the wedge (43) penetrates through the base (42) and is inserted into the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220405155.3U CN216765919U (en) | 2022-02-25 | 2022-02-25 | Municipal works foundation ditch enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220405155.3U CN216765919U (en) | 2022-02-25 | 2022-02-25 | Municipal works foundation ditch enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216765919U true CN216765919U (en) | 2022-06-17 |
Family
ID=81958608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220405155.3U Active CN216765919U (en) | 2022-02-25 | 2022-02-25 | Municipal works foundation ditch enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216765919U (en) |
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2022
- 2022-02-25 CN CN202220405155.3U patent/CN216765919U/en active Active
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