CN203684230U - Prefabricated double-row pile structure - Google Patents
Prefabricated double-row pile structure Download PDFInfo
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- CN203684230U CN203684230U CN201320738308.7U CN201320738308U CN203684230U CN 203684230 U CN203684230 U CN 203684230U CN 201320738308 U CN201320738308 U CN 201320738308U CN 203684230 U CN203684230 U CN 203684230U
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- 239000004567 concrete Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 13
- 238000009412 basement excavation Methods 0.000 abstract description 6
- 239000002689 soil Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000004927 clay Substances 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an efficient prefabricated double-row pile structure for excavation and support of foundation pits of a soft soil area. The efficient prefabricated double-row pile structure comprises a front-row pile and a back-row pile which are arrayed in parallel; a top beam I is arranged at the pile top of the front-row pile; a top beam II is arranged at the pile top of the back-row pile; a pile top connection beam is arranged between the pile tops of the front-row pile and the back-row pile; waterproof curtains which are engaged with each other are arranged between pile bodies of the front-row pile; the front-row pile and the back-row pile are pre-stress prefabricated pipe piles or pre-stress prefabricated square piles; pile body planes of the front-row pile and the back-row pile are arrayed in a rectangular array and are arrayed at intervals. With the adoption of the prefabricated double-row pile structure, the safety of the structure can be guaranteed and the speed of pile forming construction is rapid; the pile can be stressed while being formed; the construction period can be shortened and the project cost is reduced.
Description
Technical field
The utility model relates to the efficient prefabricated Double-row-piles Structure of one in Soft Deep Foundation Pit excavation supporting, for building foundation pit supporting aspect, belongs to the realm of building construction.
Background technology
Expanding economy, has promoted the construction of urbanization process, and the building of inner city is more and more intensive, particularly emerging in multitude of high level, super highrise building, the basement of building is towards darker, great development, and geological conditions worse and worse, and a large amount of base pit engineerings appear at soft clay area.National policy restriction is used the soil beyond building line, or need after the agreement of relevant departments, could use, and this makes troubles to the smooth construction of building basement.At present, the normal supporting scheme adopting of China has: put slope excavation, soil-nail wall support, pile-anchor retaining, cement-soil gravity type retaining wall, campshed add the support pattern such as inner supporting structure, double-row pile, due to aforementioned requirement, put slope excavation, soil-nail wall support, pile-anchor retaining construction will inevitably exceed building line; Campshed adds that inner supporting structure cost is high, long construction period but the basement construction scope of operation is few; Cast-in-situ steel reinforced concrete Retaining Structure with Double-row Piles stress performance is in the past good, but to the more than 2 times of weak soil density, concrete pile is difficult to pile at the concrete density reachable in soft clay area, concrete fullness coefficient when pile is large, can reach 3.6, the high and constructional difficulties of cost.Therefore, use traditional cast-in-situ steel reinforced concrete Retaining Structure with Double-row Piles to have certain limitation.
Summary of the invention
In order better to address the above problem, the utility model proposes a kind of Retaining Structure with Double-row Piles that is not subject to Soft Clay condition restriction, its bore forming speed is fast, can be stressed immediately after pile.
The efficient prefabricated Double-row-piles Structure of the utility model comprises the front campshed 1 and the rear campshed 2 that are arranged parallel to each other, the stake top of front campshed 1 is provided with hat beam I 3, the stake top of rear campshed 2 is provided with hat beam II 4, between the stake top of front campshed 1 and rear campshed 2, be provided with a top coupling beam 5, between front campshed 1 pile body, be provided with the water-stop curtain stake 6 of mutual interlock, it has formed a kind of efficient prefabricated Double-row-piles Structure together with rear campshed with front campshed, front campshed 1 and rear campshed 2 are prestressing force prefabricated tubular pile or prestressing force precast square pile, the rectangular array arrangement of pile body layout and the each interval of front campshed 1 and rear campshed 2 are arranged.
The stake of water-stop curtain described in the utility model 6 is for deeply stirring stake or high-pressure rotary jet grouting pile.
The stake stake long and front campshed 1 of the stake of water-stop curtain described in the utility model 6 is long isometric or not isometric.
Being connected of front campshed 1 described in the utility model and hat beam I 3, rear campshed 2 and adopt the structure connection of steel concrete being connected of hat beam II 4 and will meet the anchorage length of reinforcing bar, in preformed pile, insert reinforcing cage and Guan Liang and build and form.
Water-stop curtain stake is positioned at the water-stop curtain stake of constructing between front campshed stake and before front-seat pile driving construction, the water-stop curtain stake of still will first constructing in the position of front campshed.
Use step of the present utility model is as follows:
(1), according to the requirement of Geological condition and the computational analysis of foundation ditch safety and stability, determine that the stake of forward and backward campshed is long, stake footpath, pile spacing and array pitch; To pile body cross-sectional strength and the Reinforcement Design of forward and backward campshed; Determine sectional dimension and the quantity of reinforcement of Guan Liang and coupling beam; Determine that diameter, spacing, the stake of water-stop curtain stake is long etc.; Determine excavation operation;
(2) construction water-stop curtain stake 6; Stake type by design and sealing requirement determine;
(3) campshed 1 before construction, front campshed 1 need be constructed complete before water-stop curtain stake 6 initial sets; Stake type is definite by designing;
(4) campshed 2 after construction; Stake type is definite by designing;
(5) in rear campshed, insert reinforcing cage and build microdilatancy pea gravel concreten;
(6) enter reinforcing cage and build microdilatancy pea gravel concreten in front campshed interpolation;
(7) construct stake apical cap beam and the coupling beam of forward and backward campshed, makes whole support system form an entirety, the distortion of each several part cooperative bearing;
(8) soil excavation and transportation.
The beneficial effects of the utility model are: two groups of soldier piles that are arranged parallel to each other (front campshed and rear campshed), the coupling beam that a top for front campshed and rear campshed is respectively equipped with hat beam I and is preced with beam II and contacts each other; Between front campshed, be provided with the water-stop curtain stake of mutual interlock; Prefabricated Double-row-piles Structure connects front campshed, rear campshed by coupling beam does not affect stress performance and the intensity of double-row pile; Preformed pile Double-row-piles Structure not only can guarantee the safety of structure, and bore forming speed is fast, can be stressed immediately after pile; Avoid again causing greatly because of fullness coefficient in steel concrete pile driving construction the shortcoming of very large waste, can save the duration, reduced construction costs, in Soft Clay, applied practical simultaneously.
Accompanying drawing explanation
Fig. 1 is the prefabricated double-row pile plane structure schematic diagram that the utility model adopts prestressing force prefabricated tubular pile;
Fig. 2 is the prefabricated double-row pile plane structure schematic diagram that the utility model adopts prestressing force precast square pile;
Fig. 3 is that the utility model prestressing force prefabricated tubular pile adopts steel concrete to connect the pile body sectional schematic diagram while structure;
Fig. 4 is that the utility model prestressing force precast square pile adopts steel concrete to connect the pile body sectional schematic diagram while structure;
Fig. 5 is that the forward and backward campshed of the utility model and Guan Liang adopt steel concrete syndeton schematic diagram;
Fig. 6 is the prefabricated double-row pile longitudinal profile of the utility model structural representation;
In figure: campshed before 1-; Campshed after 2-; 3-hat beam I; 4-hat beam II; 5-stake top coupling beam; The stake of 6-water-stop curtain; 7-steel concrete connects structure.
The specific embodiment
Below by drawings and Examples, the utility model is described in further detail, but protection domain of the present utility model is not limited to described content.
Embodiment 1: this prefabricated Double-row-piles Structure comprises the front campshed 1 and the rear campshed 2 that are arranged parallel to each other, the stake top of front campshed 1 is provided with hat beam I 3, the stake top of rear campshed 2 is provided with hat beam II 4, between the stake top of front campshed 1 and rear campshed 2, be provided with a top coupling beam 5, between front campshed 1 pile body, be provided with the water-stop curtain stake 6 of mutual interlock, it has formed a kind of efficient prefabricated Double-row-piles Structure together with rear campshed with front campshed, front campshed 1 and rear campshed 2 are prestressing force prefabricated tubular pile, the rectangular array arrangement of pile body layout and the each interval of front campshed 1 and rear campshed 2 are arranged, wherein water curtain pile 6 is for deeply stirring stake, the stake stake long and front campshed 1 of water-stop curtain stake 6 is long isometric or not isometric, front campshed 1 is connected with hat beam I's 3, rear campshed 2 (is shown in Fig. 1 with the anchorage length that adopts steel concrete to connect structure 7 being connected of hat beam II 4 and to meet reinforcing bar, 3, 5, 6).
Embodiment 2: this prefabricated Double-row-piles Structure comprises the front campshed 1 and the rear campshed 2 that are arranged parallel to each other, the stake top of front campshed 1 and rear campshed 2 is respectively equipped with hat beam I 3 and hat beam II 4, between the stake top of front campshed 1 and rear campshed 2, be provided with a top coupling beam 5, between front campshed 1 pile body, be provided with the water-stop curtain stake 6 of mutual interlock, it has formed a kind of efficient prefabricated Double-row-piles Structure together with rear campshed with front campshed, front campshed 1 and rear campshed 2 are prestressing force precast square pile, the rectangular array arrangement of pile body layout and the each interval of front campshed 1 and rear campshed 2 are arranged, wherein water curtain pile 6 is high-pressure rotary jet grouting pile, the stake stake long and front campshed 1 of water-stop curtain stake 6 is long isometric or not isometric, front campshed 1 is connected with hat beam I's 3, rear campshed 2 (is shown in Fig. 2 with the anchorage length that adopts steel concrete to connect structure 7 being connected of hat beam II 4 and to meet reinforcing bar, 4, 5, 6).
Claims (4)
1. a prefabricated Double-row-piles Structure, it is characterized in that: comprise the front campshed (1) and the rear campshed (2) that are arranged parallel to each other, the stake top of front campshed (1) is provided with hat beam I(3), the stake top of rear campshed (2) is provided with hat beam II(4), between the stake top of front campshed (1) and rear campshed (2), be provided with a top coupling beam (5), between front campshed (1) pile body, be provided with the water-stop curtain stake (6) of mutual interlock, front campshed (1) and rear campshed (2) are prestressing force prefabricated tubular pile or prestressing force precast square pile, the rectangular array arrangement of pile body layout and the each interval of front campshed (1) and rear campshed (2) are arranged.
2. prefabricated Double-row-piles Structure according to claim 1, is characterized in that: water-stop curtain stake (6) is for deeply stirring stake or high-pressure rotary jet grouting pile.
3. prefabricated Double-row-piles Structure according to claim 1, is characterized in that: long long isometric or not isometric with front campshed (1) of the stake of water-stop curtain stake (6).
4. prefabricated Double-row-piles Structure according to claim 1, is characterized in that: front campshed (1) and hat beam I(3) be connected, rear campshed (2) and hat beam II(4) be connected and adopt steel concrete to connect the anchorage length of constructing and will meet reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738308.7U CN203684230U (en) | 2013-11-21 | 2013-11-21 | Prefabricated double-row pile structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738308.7U CN203684230U (en) | 2013-11-21 | 2013-11-21 | Prefabricated double-row pile structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684230U true CN203684230U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738308.7U Expired - Fee Related CN203684230U (en) | 2013-11-21 | 2013-11-21 | Prefabricated double-row pile structure |
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| CN (1) | CN203684230U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213566A (en) * | 2014-09-26 | 2014-12-17 | 安徽水利开发股份有限公司 | Double-row grouting pile and pull anchor spraying layer joint support structure |
| CN106609509A (en) * | 2015-10-26 | 2017-05-03 | 张继红 | Self-balancing foundation pit enclosure structure and construction method thereof |
| CN107366290A (en) * | 2017-07-27 | 2017-11-21 | 天津大学 | Foundation pit supporting method and raked pile |
| CN110777775A (en) * | 2019-10-28 | 2020-02-11 | 北京城建集团有限责任公司 | Foundation pit structure and construction method thereof |
| CN110777802A (en) * | 2019-10-21 | 2020-02-11 | 中国建筑第八工程局有限公司 | Deep foundation pit high-low span supporting structure and construction method thereof |
| CN110952567A (en) * | 2019-12-10 | 2020-04-03 | 中建一局集团建设发展有限公司 | Front wall and rear pile composite double-row foundation pit supporting structure and construction method thereof |
| CN111980063A (en) * | 2020-08-17 | 2020-11-24 | 济南轨道交通集团有限公司 | Subway open cut interval prefabricated box culvert laminated structure and construction method thereof |
| CN113718796A (en) * | 2021-09-30 | 2021-11-30 | 山东大学 | Underground structure system with foundation pit supporting function and construction method |
-
2013
- 2013-11-21 CN CN201320738308.7U patent/CN203684230U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213566A (en) * | 2014-09-26 | 2014-12-17 | 安徽水利开发股份有限公司 | Double-row grouting pile and pull anchor spraying layer joint support structure |
| CN104213566B (en) * | 2014-09-26 | 2016-05-25 | 安徽水利开发股份有限公司 | Double rows slip casting stake with draw shotcrete layer combined supporting structure |
| CN106609509A (en) * | 2015-10-26 | 2017-05-03 | 张继红 | Self-balancing foundation pit enclosure structure and construction method thereof |
| CN107366290A (en) * | 2017-07-27 | 2017-11-21 | 天津大学 | Foundation pit supporting method and raked pile |
| CN110777802A (en) * | 2019-10-21 | 2020-02-11 | 中国建筑第八工程局有限公司 | Deep foundation pit high-low span supporting structure and construction method thereof |
| CN110777775A (en) * | 2019-10-28 | 2020-02-11 | 北京城建集团有限责任公司 | Foundation pit structure and construction method thereof |
| CN110952567A (en) * | 2019-12-10 | 2020-04-03 | 中建一局集团建设发展有限公司 | Front wall and rear pile composite double-row foundation pit supporting structure and construction method thereof |
| CN111980063A (en) * | 2020-08-17 | 2020-11-24 | 济南轨道交通集团有限公司 | Subway open cut interval prefabricated box culvert laminated structure and construction method thereof |
| CN113718796A (en) * | 2021-09-30 | 2021-11-30 | 山东大学 | Underground structure system with foundation pit supporting function and construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20141121 |
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| EXPY | Termination of patent right or utility model |