CN210737553U - Recoverable assembled underground structure - Google Patents
Recoverable assembled underground structure Download PDFInfo
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- CN210737553U CN210737553U CN201920893051.XU CN201920893051U CN210737553U CN 210737553 U CN210737553 U CN 210737553U CN 201920893051 U CN201920893051 U CN 201920893051U CN 210737553 U CN210737553 U CN 210737553U
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- shaped support
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- anchor rod
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Abstract
The utility model relates to a recoverable assembled underground structure belongs to building technical field. The steel bar reinforced concrete composite anchor rod comprises a rectangular prefabricated part, a cross-shaped bracket and a recoverable anchor rod, wherein the rectangular prefabricated part is formed by wrapping concrete in a steel main body, and bolt holes for mutual connection are reserved; the cross-shaped bracket is a groove-shaped steel component, an anchor rod hole is reserved in the center of the cross-shaped bracket, and bolt holes for mutual connection are reserved in the flange; the stock is recoverable stock, the utility model discloses the bearing capacity is higher, connects reliably, and construction convenience, construction speed is fast, can dismantle, and is recoverable, can effectively solve the waterproof problem of foundation ditch.
Description
Technical Field
The utility model belongs to the technical field of the building, in particular to recoverable assembled underground structure.
Background
With the gradual acceleration of the urbanization process in China, the development and utilization of underground space are rapidly developed, foundation pit engineering is increasingly increased, and the excavation depth is also increasingly deeper. The aim at protecting the smooth proceeding of the underground structure construction and the safety of the surrounding environment of the foundation pit can be achieved through the foundation pit support, the foundation pit support can be divided into temporary support and permanent support, most of common engineering is adopted for temporary support, namely, support means is adopted for the foundation pit in the foundation pit excavation stage, and after the foundation pit engineering is finished, the support structure is removed. The traditional foundation pit supporting method comprises modes of slope setting, pile arrangement, soil nailing walls, underground continuous walls, cement soil walls, anchor rods and the like, and along with the accelerated construction of urban buildings and the large-scale development of underground spaces, composite supporting structures utilizing various supporting processes are also provided. The slope releasing is to release enough side slopes according to a certain slope when the excavation exceeds a certain depth, and is suitable for shallow foundation pit engineering. The method has the advantages of safety, reliability, economy, reasonableness and convenience in construction, but has high requirements on the site, and requires the site to be spacious and the foundation soil to be good in quality; the row pile support is a foundation pit support structure formed by arranging certain pile types in a queue manner, and comprises the forms of manual hole digging piles, cast-in-situ bored piles, prefabricated reinforced concrete sheet piles and the like in terms of materials, but relatively speaking, the row pile support has higher cost, low utilization rate and complex assembly and disassembly; the underground continuous wall is characterized in that a long and narrow deep groove is dug in an underground subsection mode, a steel reinforcement cage is placed in the groove, concrete is poured to form reinforced concrete wall sections, and finally the wall sections are connected into a continuous underground wall. In the design process of the underground continuous wall, on one hand, a designer has higher reinforcement ratio of the underground continuous wall due to safety consideration, and serious economic waste is caused; on the other hand, the owner requires that the design of the deep foundation pit supporting structure is economical and reasonable, and often causes neglect of some adverse factors in the design process, so that foundation pit accidents are caused. In order to avoid accidents, the stress and the strain of the steel bars of the underground continuous wall are tracked and monitored in the construction process, but the method consumes a large amount of funds.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that exists, the utility model provides a recoverable assembled underground structure mainly is higher for a development bearing capacity, connects reliably, and construction convenience, construction speed is fast, can dismantle, and is recoverable, can effectively solve underground structure of waterproof problem of foundation ditch.
The utility model adopts the technical scheme as follows:
a recoverable assembly type foundation pit supporting structure comprises a rectangular prefabricated component, a cross-shaped support and a recoverable anchor rod, wherein the cross-shaped support is fixed on a soil body through the recoverable anchor rod, and the rectangular prefabricated component is connected with the cross-shaped support in a staggered joint mode;
the rectangular prefabricated part is a deep-groove-shaped steel part with one open side, a concrete body is poured inside the deep-groove-shaped steel part and is fixed at the front end of the concrete body through a steel plate, a circle of water-swelling rubber water stop strips are embedded along the outer periphery of the rectangular prefabricated part on one side of the contact surface of the rectangular prefabricated part and the soil body, the water-swelling rubber water stop strips are embedded in the left end and the right end of the rectangular prefabricated part along the vertical direction, and bolt holes are uniformly arranged on the steel plates on the periphery of the front end of the deep-groove-shaped steel part;
each side of the cross-shaped support is a channel steel, the cross-shaped support is of a bilateral symmetry and vertical asymmetry structure, the upper side of the cross-shaped support is shorter than the lower side of the cross-shaped support, a bolt hole is formed in the flange of each side, an anchor rod hole is reserved in the center of the cross-shaped support, end-blocking steel plates are arranged at the end parts of the four sides of the cross-shaped support respectively, a bolt hole is formed in the middle of each end-blocking steel plate and used for connecting a plurality of cross-shaped supports, and a circle of rubber water stop strip capable of expanding when water is in contact is arranged on one side of the contact surface of;
the soil body is driven into the recoverable anchor rod construction by special equipment through the anchor rod hole.
Furthermore, two bolt holes are respectively arranged on the steel plates at the upper end and the lower end of the rectangular prefabricated part, and one bolt hole is respectively arranged on the steel plates at the left end and the right end of the rectangular prefabricated part.
Furthermore, two transverse edges of the cross-shaped support are respectively provided with three pairs of bolt holes, the edge of the upper part of the cross-shaped support is provided with a pair of bolt holes, and the edge of the lower part of the cross-shaped support is provided with two pairs of bolt holes.
Furthermore, the rectangular prefabricated components and the cross-shaped support, and the cross-shaped support are connected through bolts, the connecting bolts of the two rectangular prefabricated components crossing the cross-shaped support are long bolts, and the long bolts penetrate through the cross-shaped support to connect the two rectangular prefabricated components.
Further, the thickness of the water-swelling rubber water stop strip is half of the thickness of the steel plate where the water-swelling rubber water stop strip is located.
The utility model has the advantages that: the utility model discloses an effect and advantage are that the bearing capacity is higher, connect reliably, construction convenience, and construction speed is fast, can dismantle, and is recoverable, can effectively solve the waterproof problem of foundation ditch, also can avoid the bored concrete pile to become the potential safety hazard that pile in-process quality problems brought for the foundation ditch.
Drawings
FIG. 1 is a front view of a rectangular prefabricated component;
FIG. 2 is a top view of a rectangular prefabricated component;
FIG. 3 is a cross-sectional view taken along line 1-1 of FIG. 1;
FIG. 4 is a front view of a cruciform baffle;
FIG. 5 is a top view of a cruciform baffle;
FIG. 6 is a schematic connection diagram of the present structure;
fig. 7 is a recoverable bolt layout.
In the figure, 1 is a rectangular prefabricated part, 2 is a cross-shaped bracket, 3 is a recoverable anchor rod, 4 is a soil body, 5 is a rubber water stop bar, 6 is a concrete body, 7 is a bolt hole, 8 is a bolt, 9 is an anchor rod hole, and 10 is a terminated steel plate.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Example (b): as shown in fig. 6, the structure comprises a rectangular prefabricated part 1, a cross-shaped bracket 2 and a recoverable anchor rod 3; the rectangular prefabricated parts 1 and the rectangular prefabricated parts 1, the rectangular prefabricated parts 1 and the cross-shaped support 2 are connected through bolts 8, and the connecting bolts 8 of the two rectangular prefabricated parts 1 crossing the cross-shaped support 2 are long bolts and penetrate through the cross-shaped support 2.
As shown in fig. 1 to 3, the rectangular prefabricated member 1 is a deep groove-shaped steel member with one open end, a concrete body 6 is arranged in the rear half of the rectangular prefabricated member 1 in the depth direction, the concrete body 6 is fixed in the front end of the concrete body 6 by a steel plate, a circle of water-swelling rubber water stop strip 5 is embedded in the surface of the rectangular prefabricated member 1, which is in direct contact with the soil body 4, along the periphery of the outer side of the steel plate, the water-swelling rubber water stop strip 5 is embedded in the left end and the right end of the rectangular prefabricated member 1 in the vertical direction, bolt holes 7 are uniformly arranged on the steel plate around the front half of the deep groove-shaped structure, two pairs of bolt holes 7 are respectively arranged on the steel plates at the upper end and the lower end, and a pair of.
As shown in fig. 4 to 5, each side of the cross-shaped bracket 2 is a cross-shaped channel steel which is symmetrical left and right and has an asymmetric up and down structure, considering that the rectangular prefabricated component 1 is connected with the cross-shaped bracket 2 by staggered joints, the upper side of the cross-shaped bracket 2 is shorter than the lower side, a flange of each side is provided with a bolt hole 7, two cross-shaped transverse sides are respectively provided with three pairs of bolt holes 7, the side of the upper cross-shaped part is provided with a pair of bolt holes 7, the side of the lower cross-shaped part is provided with two pairs of bolt holes 7, an anchor rod hole 9 is reserved in the center of the cross-shaped bracket, the end parts of four sides of the cross-shaped bracket 2 are respectively provided with a sealing steel plate 10, the middle of the sealing steel plate 10 is provided with the bolt hole 7 for connection among a plurality of cross-shaped brackets 2, a circle of water-swelling rubber sealing, and a rubber water stop strip 5 which expands when encountering water is arranged on the surface of the cross-shaped bracket 2, which is in contact with the rectangular prefabricated part 1, along the vertical direction. The thickness of the water-swelling rubber water stop strip 5 is half of the thickness of the steel plate on which the water-swelling rubber water stop strip is arranged.
As shown in fig. 7, the recoverable anchor rod 3 is driven into the soil 4 through the anchor rod hole 9 by special equipment during construction.
The construction sequence of the structure is as follows: the foundation pit external dewatering method includes the steps of dewatering, excavating a foundation pit with a certain depth, driving a recoverable anchor rod 3 into the foundation pit through an anchor rod hole 9 to fix the cross-shaped support 2, fixing the cross-shaped support 2 and the cross-shaped support 2 through bolts 8, connecting the rectangular prefabricated part 1 with the corresponding cross-shaped support 2 through the bolts 8, finishing construction of each layer, entering next layer of construction, finishing final foundation pit construction, and sequentially dismantling and recycling the foundation pit from bottom to top.
Claims (5)
1. The utility model provides a recoverable assembled underground structure, its characterized in that: the soil-shifting device comprises a rectangular prefabricated part (1), a cross-shaped support (2) and a recoverable anchor rod (3), wherein the cross-shaped support (2) is fixed on a soil body (4) through the recoverable anchor rod (3), and the rectangular prefabricated part (1) is connected with the cross-shaped support (2) in a staggered joint mode;
the rectangular prefabricated part (1) is a deep-groove-shaped steel part with one open side, a concrete body (6) is poured inside the deep-groove-shaped steel part and is fixed at the front end of the concrete body (6) through a steel plate, a circle of water-swelling rubber water stop strip (5) is embedded into one side of a contact surface of the rectangular prefabricated part (1) and the soil body (4) along the periphery of the outer side of the rectangular prefabricated part (1), the water-swelling rubber water stop strip (5) is embedded into the left end and the right end of the rectangular prefabricated part (1) along the vertical direction, and bolt holes (7) are uniformly distributed in the steel plates on the periphery of the front end of the deep-groove-shaped steel part;
each side of the cross-shaped support (2) is a channel steel, the cross-shaped support (2) is in a bilateral symmetry and vertical asymmetry structure, the upper side of the cross-shaped support (2) is shorter than the lower side, a bolt hole (7) is formed in the flange of each side, an anchor rod hole (9) is reserved in the center of the cross-shaped support (2), end-blocking steel plates (10) are respectively arranged at the end parts of the four sides of the cross-shaped support (2), the bolt holes (7) are formed in the middle of the end-blocking steel plates (10) and used for connecting the cross-shaped supports (2), and a circle of water-swelling rubber water stop strip (5) is arranged on one side of the contact surface of the cross-shaped support (2) and a soil body (4) along the appearance of;
the recyclable anchor rod (3) is driven into the soil body (4) through the anchor rod hole (9) by special equipment in construction.
2. The reclaimable assembly foundation pit supporting structure of claim 1, wherein: two bolt holes (7) are respectively arranged on the steel plates at the upper end and the lower end of the rectangular prefabricated part (1), and one bolt hole (7) is respectively arranged on the steel plates at the left end and the right end of the rectangular prefabricated part (1).
3. The reclaimable assembly foundation pit supporting structure of claim 1, wherein: two horizontal edges of the cross-shaped support (2) are respectively provided with three pairs of bolt holes (7), the edge of the upper part of the cross-shaped support (2) is provided with a pair of bolt holes (7), and the edge of the lower part of the cross-shaped support (2) is provided with two pairs of bolt holes (7).
4. The reclaimable assembly foundation pit supporting structure of claim 1, wherein: between rectangle prefabricated component (1) and rectangle prefabricated component (1), between rectangle prefabricated component (1) and cross support (2), between cross support (2) and cross support (2), all connect through bolt (8), stride across connecting bolt (8) of two rectangle prefabricated components (1) of cross support (2) for the stay bolt, the stay bolt passes through cross support (2) and connects two rectangle prefabricated components (1).
5. The reclaimable assembly foundation pit supporting structure of claim 1, wherein: the thickness of the water-swelling rubber water stop strip (5) is half of the thickness of the steel plate where the water-swelling rubber water stop strip is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893051.XU CN210737553U (en) | 2019-06-14 | 2019-06-14 | Recoverable assembled underground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893051.XU CN210737553U (en) | 2019-06-14 | 2019-06-14 | Recoverable assembled underground structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210737553U true CN210737553U (en) | 2020-06-12 |
Family
ID=70982167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920893051.XU Expired - Fee Related CN210737553U (en) | 2019-06-14 | 2019-06-14 | Recoverable assembled underground structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210737553U (en) |
-
2019
- 2019-06-14 CN CN201920893051.XU patent/CN210737553U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 Termination date: 20210614 |