CN214738110U - Prefabricated assembled underground structure - Google Patents
Prefabricated assembled underground structure Download PDFInfo
- Publication number
- CN214738110U CN214738110U CN202120539480.4U CN202120539480U CN214738110U CN 214738110 U CN214738110 U CN 214738110U CN 202120539480 U CN202120539480 U CN 202120539480U CN 214738110 U CN214738110 U CN 214738110U
- Authority
- CN
- China
- Prior art keywords
- arc
- supporting
- shaped supporting
- main body
- plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008093 supporting effect Effects 0.000 claims abstract description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 14
- 238000005520 cutting process Methods 0.000 abstract description 5
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 8
- 238000005266 casting Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model relates to a prefabricated assembled underground structure, including strutting the main part, strut the main part and link gradually together and enclose by a plurality of arc backplate head and the tail, link together through being located the inside reinforcement subassembly of strutting the main part between the adjacent shape supporting board, the junction of the backplate is propped to adjacent shape is equipped with and prevents that water infiltration from strutting the inside stagnant water strip of main part, and the stagnant water strip is located the outside of strutting the main part and seals simultaneously and bond on adjacent arc backplate, and first slot has been seted up to one side that arc backplate, opposite side are equipped with first cutting, and is adjacent between the shape supporting board, the first cutting of an arc backplate is worn to establish in the first slot of another arc backplate, and the inside lower extreme of strutting the main part is equipped with the back cover, and the back cover includes waterproof layer and the cast-in-place concrete layer that forms, and arc backplate is the prefab. The utility model provides a prefabricated assembled underground structure has solved the difficult problem of payment construction of the foundation ditch in limited space.
Description
Technical Field
The utility model relates to a building engineering field especially relates to a prefabricated assembled underground structure.
Background
Deep foundation pit engineering has been involved in all construction projects from ancient times to present. The continuous expansion of cities drives the high-speed development of civil engineering, and high-rise buildings become more and more favorite for city construction. A large number of underground structure buildings such as underground parking factories, basements, underground subway stations, underground civil air defense projects and the like are gradually raised, deep foundation pit construction projects are also gradually glorious, and people must develop and perfect the deep foundation pit construction projects, which have important significance for guaranteeing the quality and safety of the projects and completing the economy of construction tasks, the deep foundation pit construction is of no help to the importance of super high-rise buildings and large-scale construction, and the deep foundation pit technology is the basis for the survival of the safe operation of the deep foundation pit construction.
The modern city center has short land use, high land development degree and expensive section price, which causes serious imbalance of supply and demand of parking berths, so that reasonable development and utilization of underground space for parking berths are necessary. The underground parking well can not only realize intelligent vehicle access, but also can reasonably meet the requirements of urban residents by only arranging an access on the ground. However, the supporting structure form is a difficult problem in front of the ground, and in the process of constructing the compact deep foundation pit with limited width soil pressure, the supporting structure of the existing underground space may exist and needs to be used as a construction operation area for planning the supporting of the underground space. At present, a Chinese patent with publication number CN107859060A discloses an inclined shaft mechanical underground parking lot, and the support modes of the inclined shaft mechanical underground parking lot comprise shotcrete reinforcement, reinforced concrete reinforcement, occlusive piles, underground continuous walls and the like.
Although the parking well also realizes intellectualization and has a novel idea, the parking well comprises: the method has the defects that the support is constructed on site, the time cost is higher, the required construction area is larger, and micro-disturbance is difficult to realize under the condition of being close to buildings and structures (namely limited space); in the central area of the city, the transverse underground space is always utilized, so that the patent is difficult to realize in the central city. A deep foundation pit supporting structure and a deep foundation pit supporting method which can be suitable for a limited space are lacked at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prefabricated assembled underground structure has solved the difficult problem of payment construction of the foundation ditch in limited space.
The technical problem is solved by the following technical scheme: a prefabricated assembly type foundation pit supporting structure comprises a supporting main body, wherein the supporting main body is cylindrical, the supporting main body is formed by sequentially connecting a plurality of arc-shaped supporting plates end to end in a surrounding mode, the adjacent arc-shaped supporting plates are connected together through a reinforcing component, the reinforcing component is positioned in the supporting main body, a water stop strip for preventing water from permeating into the supporting main body is arranged at the joint of the adjacent arc-shaped supporting plates, the water stop strip is positioned outside the supporting main body and is simultaneously and hermetically bonded on the adjacent arc-shaped supporting plates, a first slot is formed in one side of each arc-shaped supporting plate, a first inserting strip is arranged on the other side of each arc-shaped supporting plate, the first inserting strips of one arc-shaped supporting plate between the adjacent arc-shaped supporting plates penetrate through the first slot of the other arc-shaped supporting plate, a sealing bottom is arranged at the lower end inside the supporting main body and comprises a waterproof layer and a cast-in-place concrete layer, the arc-shaped supporting and protecting plate is a prefabricated part. The outer pit and the support main body can be performed in parallel, the construction period is short, and the method can be applied to a limited space. The waterproof effect is good, and adjacent arc backplate passes through the structural configuration fastening, connects reliably, can realize waterproofly more reliably.
Preferably, the waterproof layer is made of elastic waterproof cloth, and the waterproof layer is poured in the concrete layer. The water seepage phenomenon of the bottom plate caused by the cracking of the waterproof layer due to the settlement can be reduced.
The utility model discloses still including lieing in a plurality of stirring piles of strutting main part circumference distribution along strutting the main part outside, the stirring pile aligns with the junction of the adjacent arc backplate one-to-one.
Preferably, the reinforcing component comprises a threaded support rod, an internal thread seat and two positioning plates, wherein one end of the threaded support rod is supported on the supporting main body, the internal thread seat is in threaded connection with the threaded support rod, the two positioning plates are distributed on two sides of the internal thread seat, the two positioning plates are connected to two adjacent arc-shaped supporting plates in a one-to-one correspondence mode through fastening bolts, a connector is arranged on each fixing plate, the connector is hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to the internal thread seat. The two adjacent arc-shaped supporting plates are conveniently reinforced and the water leakage resistant effect is improved.
Preferably, the other end of the threaded support rod is provided with a plurality of rockers which are distributed along the circumferential direction of the threaded support rod and extend in the radial direction. The convenience of force application during reinforcement is improved.
Preferably, the arc-shaped supporting plate is provided with a positioning pin penetrating through the arc-shaped supporting plate along the thickness direction of the arc-shaped supporting plate. The reliability of the connection between the payment structure and the peripheral components can be improved.
The utility model discloses following beneficial effect has:
1. the size of the arc-shaped supporting plate is customized according to the size of the compact deep foundation pit, the inner wall of the compact deep foundation pit is supported by using a forming supporting main body through the matching of a first slot and a first inserting strip in the dug compact deep foundation pit, and then the inner wall is reinforced by using a reinforcing component, the arc-shaped supporting plate is prefabricated and formed in a factory, and is directly spliced and formed during use, so that the mounting efficiency is high, and the supporting effect is good;
2. after the splicing of the supporting main body is completed, the positioning plate is fixed on two adjacent arc supporting plates through the fastening bolt, the supporting threaded rotary rod is rotated, the internal threaded seat moves on the supporting threaded rotary rod, the connecting rod is driven to be tensioned, and therefore the two arc supporting plates are fixed and fastened, and the reinforcing effect is good.
3. The auxiliary support is arranged to enable the supporting main body to have sufficient stability resistance, overturning resistance, uplift resistance and seepage resistance, and meanwhile the expansion water stop strip is further processed in a seepage prevention mode.
4. The bottom of the support main body is provided with a cast-in-place concrete back cover and a waterproof coiled material, so that the support main body forms an integral tubular structure which can be directly used as an outer wall and a bottom plate of a building in the future, and the economic benefit is improved to a great extent.
Drawings
Fig. 1 is a schematic top view of an embodiment of the invention;
fig. 2 is an enlarged schematic view of a reinforcing member.
In the figure: arc backplate 1, reinforcement component 2, sealing strip 3, first slot 4, first cutting 5, back cover 6, stirring stake 7, screw thread bracing piece 8, internal thread seat 9, locating plate 10, fastening bolt 11, connector 12, connecting rod 13, rocker 14, dowel 15.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, a prefabricated assembly type foundation pit supporting structure includes a supporting main body. The supporting main body is cylindrical. Strut the main part and enclose together by 1 end to end in proper order of a plurality of arc backplate, be 6 in this embodiment, link together through reinforcing component 2 between the adjacent arc backplate, the reinforcing component is located the inside of strutting the main part, and is adjacent the junction of arc backplate is equipped with and prevents that the inside stagnant water strip 3 of main part is strutted in the water infiltration, and the stagnant water strip is located the outside of strutting the main part and seals simultaneously and bond on adjacent shape backplate, and first slot 4 has been seted up to one side of arc backplate, and the opposite side is equipped with first cutting 5, and is adjacent between the arc backplate, the first cutting of an arc backplate is worn to establish in the first slot of another arc backplate, strut the inside lower extreme of main part and be equipped with back cover 6, and the back cover includes waterproof layer and the cast-in-place concrete layer that forms, and arc backplate is the prefab. The waterproof layer is made of elastic waterproof cloth and is poured in the concrete layer. The utility model discloses still including lieing in a plurality of stirring stakes 7 of strutting the main part circumference distribution along strutting the main part outside, the stirring stake is in phase adjacent arc junction alignment of backplate one-to-one. The reinforcing component comprises a threaded support rod 8 with one end supported on the supporting main body, an internal thread seat 9 connected to the threaded support rod in a threaded mode and two positioning plates 10 distributed on two sides of the internal thread seat, the two positioning plates are connected to two adjacent arc-shaped supporting plates in a one-to-one correspondence mode through fastening bolts 11, a connector 12 is arranged on the fixing plate and hinged to one end of a connecting rod 13, and the other end of the connecting rod is hinged to the internal thread seat. The other end of the threaded support rod is provided with a plurality of rockers 14 which are distributed along the circumferential direction of the threaded support rod and extend in the radial direction. The arc-shaped supporting plate is provided with a positioning pin 15 which penetrates through the arc-shaped supporting plate along the thickness direction of the arc-shaped supporting plate. The number of the butt joints of the arc-shaped supporting and protecting plates is equal to that of the arc-shaped supporting and protecting plates, and 6 butt joints are provided in the embodiment.
Through the utility model discloses a method that prefabricated assembled underground structure carries out deep basal pit support does: firstly, digging a deep foundation pit, prefabricating an arc-shaped supporting and protecting plate and manufacturing a reinforcing assembly; step two, assembling a support main body: the method comprises the steps that arc supporting plates are spliced together in a deep foundation pit to form a supporting main body, a first inserting strip of one arc supporting plate penetrates through a first inserting slot of the other arc supporting plate between adjacent arc supporting plates, reinforcing and waterproofing treatment is carried out on the connecting part formed between odd adjacent arc supporting plates, and then reinforcing and waterproofing treatment is carried out on the connecting part formed between even adjacent arc supporting plates. In this embodiment, the number of the joints formed between the adjacent arc-shaped support plates is 6, the number of the joints is 1 st, 3 rd and 5 th, and the number of the joints is 2 nd, 4 th and 6 th, so that the first one is regarded as irrelevant. The concrete process of reinforcing waterproof treatment comprises the following steps: the two positioning plates are connected to two adjacent arc-shaped supporting plates in a one-to-one correspondence mode through fastening bolts, one end of the threaded supporting rod is supported on the inner peripheral surface of the supporting main body, the threaded supporting rod is rotated to enable the internal thread seat to move towards the end, away from the threaded supporting rod, connected with the supporting main body, so that the adjacent protective supporting plates are extruded tightly and connected and reinforced, and the sealing strips are simultaneously and hermetically connected to the outer peripheral surfaces of the two adjacent arc-shaped supporting plates; thirdly, arranging a plurality of stirring piles which are aligned with the joints of two adjacent arc-shaped supporting plates in a one-to-one correspondence manner in the soil body outside the supporting main body, and arranging a back cover on the ground inside the supporting main body; the process of setting the back cover is as follows: and casting a concrete bottom layer in situ, leveling the upper surface of the concrete bottom layer before the initial setting of the concrete bottom layer, paving an elastic waterproof cloth, wherein the waterproof cloth forms a waterproof layer, casting a cement paste layer with the thickness of 2-3 cm on the waterproof layer after the final setting of the concrete bottom layer, and casting a concrete surface layer on the cement paste layer before the final setting of the cement paste layer after the initial setting. The sealing bottom manufactured by the construction method has good water seepage prevention effect.
Claims (6)
1. A prefabricated assembly type foundation pit supporting structure comprises a supporting main body and is characterized in that the supporting main body is cylindrical, the supporting main body is formed by sequentially connecting a plurality of arc-shaped supporting plates end to end in a surrounding mode, adjacent arc-shaped supporting plates are connected together through a reinforcing component, the reinforcing component is located inside the supporting main body, a water stop strip for preventing water from permeating into the supporting main body is arranged at the joint of the adjacent arc-shaped supporting plates, the water stop strip is located outside the supporting main body and is simultaneously and hermetically bonded to the adjacent arc-shaped supporting plates, a first slot is formed in one side of each arc-shaped supporting plate, a first inserting strip is arranged on the other side of each arc-shaped supporting plate, the first inserting strips of one arc-shaped supporting plate between the adjacent arc-shaped supporting plates penetrate through the first slot of the other arc-shaped supporting plate, and a sealing bottom is arranged at the lower end inside the supporting main body, the back cover comprises a waterproof layer and a cast-in-place concrete layer, and the arc-shaped supporting plate is a prefabricated part.
2. The prefabricated foundation pit supporting structure of claim 1, wherein the waterproof layer is made of elastic waterproof cloth, and the waterproof layer is poured in the concrete layer.
3. The prefabricated foundation pit supporting structure of claim 1, further comprising a plurality of stirring piles distributed along the circumference of the supporting body outside the supporting body, wherein the stirring piles are aligned with the joints of the adjacent arc-shaped supporting plates in a one-to-one correspondence.
4. The prefabricated foundation pit supporting structure of claim 1, wherein the reinforcing component comprises a threaded supporting rod with one end supported on the supporting body, an internal threaded seat screwed on the threaded supporting rod, and two positioning plates distributed on two sides of the internal threaded seat, the two positioning plates are connected to two adjacent arc-shaped supporting plates in a one-to-one correspondence manner through fastening bolts, a connector is arranged on the fixing plate, the connector is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged with the internal threaded seat.
5. The prefabricated foundation pit supporting structure of claim 4, wherein the other end of the threaded supporting rod is provided with a plurality of rockers which are distributed along the circumference of the threaded supporting rod and extend in the radial direction.
6. The prefabricated foundation pit supporting structure of claim 1, wherein the arc-shaped supporting plate is provided with a positioning pin penetrating the arc-shaped supporting plate in the thickness direction of the arc-shaped supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120539480.4U CN214738110U (en) | 2021-03-16 | 2021-03-16 | Prefabricated assembled underground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120539480.4U CN214738110U (en) | 2021-03-16 | 2021-03-16 | Prefabricated assembled underground structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214738110U true CN214738110U (en) | 2021-11-16 |
Family
ID=78594716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120539480.4U Active CN214738110U (en) | 2021-03-16 | 2021-03-16 | Prefabricated assembled underground structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214738110U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982440A (en) * | 2021-03-16 | 2021-06-18 | 浙江理工大学 | Deep foundation pit supporting structure and deep foundation pit supporting method based on limited space |
| CN114215524A (en) * | 2021-12-16 | 2022-03-22 | 哈尔滨工业大学 | Corrugated steel shotcrete shaft is strutted |
| CN115110545A (en) * | 2022-08-05 | 2022-09-27 | 中建八局发展建设有限公司 | Circular steel lining plate foundation pit supporting device and construction method thereof |
| CN115387347A (en) * | 2022-06-06 | 2022-11-25 | 中煤江南建设发展集团有限公司 | Deep foundation pit supporting method based on limited space |
-
2021
- 2021-03-16 CN CN202120539480.4U patent/CN214738110U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982440A (en) * | 2021-03-16 | 2021-06-18 | 浙江理工大学 | Deep foundation pit supporting structure and deep foundation pit supporting method based on limited space |
| CN114215524A (en) * | 2021-12-16 | 2022-03-22 | 哈尔滨工业大学 | Corrugated steel shotcrete shaft is strutted |
| CN114215524B (en) * | 2021-12-16 | 2024-02-20 | 哈尔滨工业大学 | Corrugated steel shotcrete shaft support |
| CN115387347A (en) * | 2022-06-06 | 2022-11-25 | 中煤江南建设发展集团有限公司 | Deep foundation pit supporting method based on limited space |
| CN115110545A (en) * | 2022-08-05 | 2022-09-27 | 中建八局发展建设有限公司 | Circular steel lining plate foundation pit supporting device and construction method thereof |
| CN115110545B (en) * | 2022-08-05 | 2024-01-02 | 中建八局发展建设有限公司 | Round steel lining plate foundation pit supporting device and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214738110U (en) | Prefabricated assembled underground structure | |
| CN110512647B (en) | Partial assembly type subway station structure design and construction method | |
| CN204041081U (en) | A kind of constructing tunnel preliminary bracing device | |
| CN109944250B (en) | Foundation pit forward and backward combined construction method of non-permanent vertical supporting system | |
| CN107842035B (en) | Ultra-high performance concrete prefabricated assembled comprehensive pipe gallery system and construction method | |
| CN106013218A (en) | Building method for open caisson for underground garage | |
| CN109024679A (en) | A kind of supporting and the integrated system of Pipe rack and construction method | |
| CN208899527U (en) | A kind of supporting and the integrated system of Pipe rack | |
| CN112982440A (en) | Deep foundation pit supporting structure and deep foundation pit supporting method based on limited space | |
| CN112411579B (en) | Assembly type anchor rod frame beam structure containing EPS elastic cushion layer and suitable for expansive soil slope | |
| CN102286982A (en) | Deep foundation pit precast building enclosure for constructing in low environment | |
| CN107514012A (en) | A kind of partial precast assembly steel concrete combination underground pipe gallery for exempting from template | |
| CN207484508U (en) | A kind of ultra-high performance concrete precast assembly pipe gallery system | |
| CN113047327A (en) | Multi-connected-cylinder rectangular assembled well wall structure and assembling method thereof | |
| CN111962535B (en) | Combined prefabricated lattice beam and construction method thereof | |
| CN110318419B (en) | Construction method of one-lining door opening support of underpass type pipe gallery | |
| CN110700274A (en) | Mechanically-connected assembled stand column and stand column pile | |
| CN106013911A (en) | Internal steel plate assembly type circular underground granary with prefabricated caulking strips | |
| CN205858358U (en) | Prestressing combination formula well tunnel modular structure | |
| CN112343074A (en) | Spliced prefabricated root key type digging foundation | |
| CN220377306U (en) | Prefabricated pile wall superposed assembled underground structure | |
| CN109184734A (en) | A kind of assembled protective case liner structure for the rectangle underground space and apply method | |
| CN113863709B (en) | Method for layer-adding reconstruction of wall house of Zangqiang building brickwork blockhouse by adopting wood structure | |
| CN216156604U (en) | Multi-connected-cylinder rectangular assembled well wall structure | |
| CN111733830B (en) | Super high-rise building foundation pit bearing and enclosing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |