CN203891028U - Supporting structure of reinforced steel sheet piles and core tube bracings in deep foundation pit - Google Patents
Supporting structure of reinforced steel sheet piles and core tube bracings in deep foundation pit Download PDFInfo
- Publication number
- CN203891028U CN203891028U CN201420231612.7U CN201420231612U CN203891028U CN 203891028 U CN203891028 U CN 203891028U CN 201420231612 U CN201420231612 U CN 201420231612U CN 203891028 U CN203891028 U CN 203891028U
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- steel sheet
- sheet pile
- sheet piles
- foundation ditch
- foundation pit
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 82
- 239000010959 steel Substances 0.000 title claims abstract description 82
- 238000009412 basement excavation Methods 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 238000007596 consolidation process Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model discloses a supporting structure of reinforced steel sheet piles and core tube bracings in a deep foundation pit. The supporting structure comprises a foundation pit in basin excavation and core tubes arranged at the center of the foundation pit; the steel sheet piles closed continuously are arranged on the periphery of the foundation pit, the inner sides of the steel sheet piles are provided with prefabricated reinforcing bosses, a plurality of horizontal supporting beams are arranged between the core tubes and the steel sheet piles, the steel sheet piles are supported by the support change principle, the prefabricated reinforcing bosses serve as supports to perform internal supporting and reverse pressing on the steel sheet piles, after the core tubes of a central structure body are poured, the core tubes serve as supporting points, the horizontal supporting beams are erected between the steel sheet piles and the core tubes, the current support change is implemented by excavating the peripheral bosses, the prefabricated reinforcing bosses serve as transition supports, the steel sheet piles in the foundation pit can be prevented from deforming effectively, and the safety of the supporting structure is improved; by means of the transition supporting of the reinforced steel sheet piles and the reinforcing bosses, and the appliance of the steel sheet piles serving as the supporting structure in the deep foundation pit with the depth of 7 to 12 meters is implemented.
Description
Technical field
the utility model relates to foundation pit supporting construction technical field, particularly a kind of for deep foundation ditch reinforced steel sheet pile and Core Walls Structure the supporting and protection structure to support.
Background technology
Steel sheet pile is a kind of hot rolling (or clod wash) shaped steel with fore shaft or jaw, after squeezing into, interconnect interlock by fore shaft or jaw, form continuous steel sheet pile enclosure wall, be used for keeping off soil and water proof, have light-duty, high-strength, quick construction, environmental protection, attractive in appearance, the advantages such as reusable edible, building at home and abroad, municipal administration, harbour, there is long use history in the fields such as railway, according to " base pit engineering handbook ", steel sheet pile is generally applicable to cutting depth and is not more than 7 meters and surrounding enviroment and protects less demanding base pit engineering, reach the deep foundation ditch of 7 ~ 12 meters for foundation depth, all generally to adopt campshed enclosure wall or cement-soil pile as soil-baffling structure, although these soil-baffling structure designs and construction technology are more ripe, control but construction quality is difficult, after finishing, engineering leaves over too many steel concrete rubbish underground, do not meet low-carbon economy, environmental protection, the direction of energy-saving and emission-reduction and sustainable development, for future, hidden danger has been buried in the development of China's underground space.
For a long time, second moment of area and section modulus between steel sheet pile are all less, in deep foundation ditch, easily produce distortion, and be subject to the restriction of tradition piling technique, cause steel sheet pile in pattern foundation pit supporting structure, to use seldom, and be confined to dig the foundation ditch that is deeply not more than 7m on using, but steel sheet pile has above-mentioned light-duty, high-strength, environmental protection, the advantage such as can reuse, for this reason how by steel sheet pile flexible Application in the degree of depth reaches the deep foundation ditch of 7 ~ 12 meters, be technical problem urgently to be resolved hurrily at present.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of steel sheet pile of breaking through in the restriction of the deep foundation ditch application degree of depth and the reliable reinforced steel sheet pile of structural safety and the supporting and protection structure of Core Walls Structure to support.
For solving the problems of the technologies described above adopted technical scheme: reinforced steel sheet pile and the Core Walls Structure supporting and protection structure to support in a kind of deep foundation ditch, comprise the foundation ditch and the Core Walls Structure that is arranged at foundation ditch center of basin excavation, be provided with the steel sheet pile of continuous sealing in described foundation ditch surrounding, be reserved with and reinforce earthen platform in described steel sheet pile inner side, be provided with Guan Liang at described steel sheet pile top, at described Core Walls Structure edge, surrounding correspondence is provided with support bracket, is provided with multiple tracks horizontal shore between described Core Walls Structure and steel sheet pile.
Further, the breadth of section of described steel sheet pile is 500 ~ 750 millimeters, and the length of described steel sheet pile is 12 ~ 24 meters.
Further, consolidation process is carried out by cement mixing pile in described reinforcing earthen platform.
Beneficial effect: the steel sheet pile that the supporting and protection structure in this deep foundation ditch adopts is the reinforced steel sheet pile of breadth of section 500～750mm, length 12～24m, and coordinate static pressure engineering method that steel sheet pile is pressed in foundation ditch, abandoning tradition adopts the methods such as impact pile driving method, vibropiling method, mixing piling method to set steel sheet pile, piling precision is high, damage to steel sheet pile is little, and entirety is stressed good, simultaneously, adopt the principle of support replacement to support steel sheet pile, while carrying out basin excavation, to reserve and reinforce earthen platform as supporting in steel sheet pile inner side, to form inner support and the back-pressure to steel sheet pile, then building after the Core Walls Structure of intermediate host, utilize Core Walls Structure as the strong point, between steel sheet pile and Core Walls Structure, set up horizontal shore so that steel sheet pile is formed and to be supported, excavate again surrounding earthen platform and realize support replacement, support as transition by the reserved earthen platform that reinforces, can effectively reduce the distortion of deep foundation ditch Steel Sheet Pile, improve the safety of supporting and protection structure, transition by reinforced steel sheet pile and reinforcing earthen platform is supported, realizing steel sheet pile is the application as space enclosing structure in the deep foundation ditch of 7～12 meters in the degree of depth.
Due to steel sheet pile can reusing and construction characteristic, in the more economic environmental protection of the more traditional campshed supporting of deep foundation ditch Steel Sheet Pile supporting, more save the duration, construction quality is more guaranteed, meets sustainable development idea.
brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described further;
Fig. 1 is the structural representation of the utility model embodiment.
Detailed description of the invention
With reference to Fig. 1, reinforced steel sheet pile and the Core Walls Structure supporting and protection structure to support in a kind of deep foundation ditch of the utility model, comprise the foundation ditch and the Core Walls Structure 1 that is arranged at foundation ditch center of basin excavation, be provided with the steel sheet pile 2 of continuous sealing in foundation ditch surrounding, be reserved with in steel sheet pile 2 inner sides and reinforce earthen platform 3, be provided with hat beam 4 at steel sheet pile 2 tops, be provided with and support bracket 5 in Core Walls Structure 1 edge surrounding correspondence, between Core Walls Structure 1 and steel sheet pile 2, be provided with multiple tracks horizontal shore 6.
The work progress of above-mentioned supporting and protection structure is as follows: the deep foundation ditch surrounding at predetermined excavation is pressed into steel sheet pile 2 to projected depth according to designing requirement; After steel sheet pile 2 constructions, be preced with beam 4, angle brace and built-in fitting construction thereof; Excavation first floor soil, reserves and reinforces earthen platform 3 using the inner support as steel sheet pile 2 in foundation ditch surrounding; In foundation ditch, put slope excavation, cutting depth is to design elevation at the bottom of foundation ditch; At foundation ditch center, construction Core Walls Structure 1 forms agent structure pre-buried support bracket 5; Between steel sheet pile 2 and Core Walls Structure 1, multiple tracks horizontal shore 6 is set, meanwhile, the reinforcing earthen platform 3 of excavation pit surrounding is to realize support replacement.
It is 500 ~ 750 millimeters that steel sheet pile in the present embodiment adopts breadth of section, and length is the reinforced steel sheet pile of 12 ~ 24 meters, and more traditional steel sheet pile has obvious advantage on its cross section mechanical characteristic and steel using amount.
Adopt the principle of support replacement to support steel sheet pile 2, the reinforcing earthen platform 3 that steel sheet pile 2 in implantation foundation ditch first passes through reserved surrounding is as supporting, form inner support and back-pressure effect to steel sheet pile 2, then building after intercooler core cylinder 1, utilize Core Walls Structure 1 as the strong point, between Core Walls Structure 1 and steel sheet pile 2, set up horizontal shore 6, then the reinforcing earthen platform 3 of excavation pit surrounding, realize support replacement.Support as transition by the reserved earthen platform 3 that reinforces, can effectively reduce the distortion of deep foundation ditch Steel Sheet Pile 2, improve the safety of supporting and protection structure.
By the transition support that adopts reinforced steel sheet pile and reinforce earthen platform, solve the weak problem of the steel sheet pile rigidity in deep foundation ditch, reduced the malformation of deep foundation ditch Steel Sheet Pile, realizing steel sheet pile is the application as space enclosing structure in the deep foundation ditch of 7～12 meters in the degree of depth.
At present domesticly mostly take powerful vibrating hammer piling method to carry out piling work, when construction, vibration sense is large, noise is strong, be not suitable for that urban district, crowd concentrate local and to the conditional place of construction space, basis to existing construction of structures and superstructure cause injury to a certain degree, simultaneously the method piling low precision, also large to steel sheet pile damage, set steel sheet pile in foundation ditch stressed bad.In the present embodiment, steel sheet pile 2 is implanted in the foundation ditch not excavating and is formed and go along with sb. to guard him in the mode of static pressure by static-pressure pile planting machine, work progress friction; noiselessness, forms protection to existing building, simultaneously; piling precision is high, little to the damage of steel sheet pile, is implanted to steel sheet pile in foundation ditch stressed good.
By reference to the accompanying drawings this practicality-novel embodiment is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken possessing at described technical field those of ordinary skill, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (3)
1. reinforced steel sheet pile and the Core Walls Structure supporting and protection structure to support in a deep foundation ditch, it is characterized in that: the foundation ditch and the Core Walls Structure that is arranged at foundation ditch center that comprise basin excavation, be provided with the steel sheet pile of continuous sealing in described foundation ditch surrounding, be reserved with and reinforce earthen platform in described steel sheet pile inner side, be provided with Guan Liang at described steel sheet pile top, at described Core Walls Structure edge, surrounding correspondence is provided with support bracket, is provided with multiple tracks horizontal shore between described Core Walls Structure and steel sheet pile.
2. reinforced steel sheet pile and the Core Walls Structure supporting and protection structure to support in deep foundation ditch according to claim 1, is characterized in that: the breadth of section of described steel sheet pile is 500 ~ 750 millimeters, and the length of described steel sheet pile is 12 ~ 24 meters.
3. reinforced steel sheet pile and the Core Walls Structure supporting and protection structure to support in deep foundation ditch according to claim 1, is characterized in that: consolidation process is carried out by cement mixing pile in described reinforcing earthen platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231612.7U CN203891028U (en) | 2014-05-07 | 2014-05-07 | Supporting structure of reinforced steel sheet piles and core tube bracings in deep foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231612.7U CN203891028U (en) | 2014-05-07 | 2014-05-07 | Supporting structure of reinforced steel sheet piles and core tube bracings in deep foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891028U true CN203891028U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420231612.7U Expired - Lifetime CN203891028U (en) | 2014-05-07 | 2014-05-07 | Supporting structure of reinforced steel sheet piles and core tube bracings in deep foundation pit |
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| Country | Link |
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| CN (1) | CN203891028U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005413A (en) * | 2014-05-07 | 2014-08-27 | 广州市市政工程设计研究院 | Supporting structure for butt supporting of reinforcing steel plate pile and core tube in deep foundation pit |
| CN106978812A (en) * | 2017-03-09 | 2017-07-25 | 中国建筑第八工程局有限公司 | The support-replacing system and support replacement method of the outer existing structures of foundation ditch in foundation pit construction |
-
2014
- 2014-05-07 CN CN201420231612.7U patent/CN203891028U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005413A (en) * | 2014-05-07 | 2014-08-27 | 广州市市政工程设计研究院 | Supporting structure for butt supporting of reinforcing steel plate pile and core tube in deep foundation pit |
| CN104005413B (en) * | 2014-05-07 | 2016-06-15 | 广州市市政工程设计研究总院 | Reinforced steel sheet pile and the Core Walls Structure supporting construction to support in a kind of deep basal pit |
| CN106978812A (en) * | 2017-03-09 | 2017-07-25 | 中国建筑第八工程局有限公司 | The support-replacing system and support replacement method of the outer existing structures of foundation ditch in foundation pit construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510060 Guangzhou City, Yuexiu District Province, East Ring Road, No. 348, No. Patentee after: GUANGZHOU MUNICIPAL ENGINEERING DESIGN & Research Institute Patentee after: GUANGZHOU HONGWEI PROJECT CONTRACT CO.,LTD. Address before: 510060 Guangzhou City, Yuexiu District Province, East Ring Road, No. 348, No. Patentee before: GUANGZHOU MUNICIPAL ENG DESIGN & Research Institute Patentee before: GUANGZHOU HONGWEI PROJECT CONTRACT CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510060 East seat, No. 348 East Ring Road, Guangzhou, Guangdong, Yuexiu District Co-patentee after: GUANGZHOU HONGWEI PROJECT CONTRACT CO.,LTD. Patentee after: GUANGZHOU MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 510060, No. 348 East Ring Road, Guangzhou, Guangdong, Yuexiu District Co-patentee before: GUANGZHOU HONGWEI PROJECT CONTRACT CO.,LTD. Patentee before: GUANGZHOU MUNICIPAL ENGINEERING DESIGN & Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |