CN205475257U - A composite pile anchor supporting construction for deepening excavation - Google Patents

A composite pile anchor supporting construction for deepening excavation Download PDF

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Publication number
CN205475257U
CN205475257U CN201620204591.9U CN201620204591U CN205475257U CN 205475257 U CN205475257 U CN 205475257U CN 201620204591 U CN201620204591 U CN 201620204591U CN 205475257 U CN205475257 U CN 205475257U
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China
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pile
campshed
support
waist rail
newly
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CN201620204591.9U
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Chinese (zh)
Inventor
郭运
马郧
王奎
刘佑祥
倪欣
朱佳
易丽丽
张杨
范晓峰
龙晓东
罗春雨
李松
孙盼
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Zhongnan Survey And Design Institute (hubei) Co Ltd
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Zhongnan Survey And Design Institute (hubei) Co Ltd
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Abstract

The utility model provides a composite pile anchor supporting construction for deepening excavation, including set up original in the foundation ditch strut the system and with the newly -increased system of strutting, roof beam no. 1 is preced with at the foundation ditch campshed no. 1 by a plurality of a set of one -tenth of fender pile all around with the pile bolck including setting up to original system of strutting, and pile bolck hat roof beam no. 1 links to each other and be as an organic whole in a row with a plurality of fender piles with a fender pile pile bolck, newly -increased strut the system including set up a plurality of fender piles no. 1 enclose regional in the campshed no. 2 and pile bolck hat roof beam no. 2 formed by a plurality of fender piles no. 2, pile bolck hat roof beam no. 2 links to each other with two pile bolck of fender pile and links a plurality of fender piles no. 2 as an organic whole, campshed no. 1 and campshed are equipped with waist rail no. 1 between two, waist rail no. 1 is connected with campshed no. 1, and campshed no. 2 and waist rail are equipped with linking beam between one, and the pile bolck hat roof beam no. 2 of campshed no. 2 is connected through linking beam with waist rail no. 1. The utility model discloses the former supporting construction of make full use of on the basis of guaranteeing the foundation ditch safety and stability, has realized construction convenience, has shortened the time limit for a project, and the continuity construction in follow -up excavation stage of foundation ditch engineering has been guaranteed to this scheme.

Description

A kind of compound anchored pile supporting for adding deep excavation
Technical field
This utility model relates to a kind of foundation pit supporting construction its support reinforcement method, is particularly suited for large area relatively deep basal pit and deepens excavation supporting.
Background technology
Along with socioeconomic high speed development, the anxiety of urban land promotes buildings or structures constantly to extend to the underground space, accelerate the exploitation of urban underground space, city excavation of foundation pit scale is caused to develop towards the biggest deeper direction, the period that Jin20Nian Shi China Development of Urban Foundation Work is the swiftest and the most violent, for the situation that urban area land used is nervous and land price is expensive, developer always manages to improve the space utilization benefit in soil.Stretch upwards and limited by plot ratio, thus strengthen the utilization to the underground space and then become effective selection.This proposes new requirement to the design theory of foundation pit supporting construction with construction technology.In such a situa-tion, create and the foundation ditch excavated is carried out secondary add the demand of deep excavation.Existing supporting construction can not meet new force request, needs to take former support system suitable reinforcement and strengthening measure, to reaching safely, effectively, rational purpose.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of pattern foundation pit supporting structure ruggedized construction, and this malformation is little, take full advantage of original support system, easy construction, economy are good.
Technical solution of the present utility model is: add composite supporting construction under deep excavation, including the original support system being arranged in foundation ditch and with newly-increased support system;Original support system includes that the campshed one being made up of some support piles one and the stake apical cap beam one being arranged on foundation ditch surrounding, stake apical cap beam one are connected with support pile one top and are connected as a single entity by some support piles one;Newly-increased support system includes the campshed two being made up of some support piles two and the stake apical cap beam two being arranged in the region that some support piles one surround, stake apical cap beam two is connected with support pile two top and is connected as a single entity by some support piles two, it is less than at the bottom of the stake of support pile one at the bottom of the stake of support pile two, waist rail one it is provided with between campshed one and campshed two, described waist rail one is connected with campshed one, being provided with linking beam between campshed two and waist rail one, the stake apical cap beam two of campshed two and waist rail one are connected by linking beam.
Connecting on described campshed one and have waist rail two, be provided with the anchor pole one being connected with waist rail two between adjacent support pile one, support pile one is linked as entirety with anchor pole one by waist rail two.
Being provided with between described adjacent support pile two and be preced with the anchor pole two that beam two is connected, support pile is linked as entirety with anchor pole two by hat beam two.
This utility model little, suitability of deformation is strong, easy construction, cost performance are good.Preferably solve other to deepen to open the contrary sequence method of use, semi-inverse method complex procedures, defect that working space is little, long in time limit, it is ensured that the safety of foundation pit construction, economy and high efficiency;It it is a kind of safe and reliable, supporting structure system of adaptation current construction situation.
The beneficial effects of the utility model are: ensureing on the premise of deep pit monitor, using suitable its support reinforcement structure design, it is ensured that new and old support system is combination stressed rationally, easy construction, duration saving, economical rationality.
Accompanying drawing explanation
Fig. 1 is profile of the present utility model;
Fig. 2 is plane graph of the present utility model.
Detailed description of the invention
Seeing Fig. 1 ~ 2, this utility model uses its support reinforcement structure of campshed+prestressed anchor, including former foundation pit supporting system 1, and newly-increased waist rail 1, newly-increased linking beam 3, newly-increased support system 4.
Described former foundation pit supporting system comprises an apical cap beam 1, support pile 1, anchor pole 1.
Described newly-increased support system comprises an apical cap beam 2 4.1, support pile 2 4.2, anchor pole 2 4.3.
Described newly-increased waist rail 1 is connected with former support pile one pile body, inside foundation ditch.Described newly-increased linking beam is connected with newly-increased waist rail one, newly-increased support pile stake apical cap beam two, and new and old support system is linked to be entirety.
Connecting on described campshed one and have waist rail 2 1.4, be provided with the anchor pole 1 being connected with waist rail 2 1.4 between adjacent support pile one, support pile 1 is linked as entirety with anchor pole 1 by waist rail 2 1.4.
The former support system of this utility model can use the supporting construction such as cantilevered campshed, double-row pile, anchoring type campshed.
This utility model increases support system newly can use the supporting construction such as cantilevered campshed, double-row pile, anchoring type campshed, inner supporting type campshed and diaphram wall.
By newly-increased waist rail, newly-increased linking beam, original support system and matched newly-increased support system are connected, be the measure that former support system is taked reinforcement and strengthening, it is ensured that foundation ditch is deepening the safety after ending.
Original support system can use Row Piles Supporting Structure, newly-increased support system can use campshed or Diaphragm Wall Support Structure, newly-increased waist rail that reinforced beam, newly-increased linking beam can be used can to use reinforced beam, and " one jumps one " interval arranges or arranges by stake.By anchor pole between newly-increased stake, supporting construction new, old is made to form overall force structure.
Weak soil is distributed in the range of foundation ditch area distribution has highly permeable layer and rich groundwater or excavation of foundation pit soil layer, between the new and old support pile of this utility model (former support pile one and newly-increased support pile two), cement mixing pile or high-pressure rotary jet grouting pile also can be set, it is also possible to combine soil stabilization in hole.
Enforcement step of the present utility model is: the first newly-increased support pile 4.2 of construction inside the existing support system of foundation ditch surrounding 1, and then in foundation ditch, layer and section excavates and construct between original stake anchor pole 2 4.3 between anchor pole 1 and newly-increased stake;Until excavation is to predetermined newly-increased waist rail 1, newly-increased linking beam 3 and newly-increased hat beam 2 4.1 absolute altitude, construction corresponding construction, layer and section excavation after structural strength meets requirement, carry out newly-increased anchor pole 2 4.3 construction, it is excavated to design hole end absolute altitude, pours bed course and carry out main structure construction.Newly-increased support pile two can double as main structural engineering stake.
This utility model has the advantage that
(1) inside foundation ditch, set up new support system, construct less to foundation ditch surrounding enviroment.
(2) one entirety of composite support System forming, and strengthen at the node of new and old support system boundary, reasonable stress, easy construction, duration are saved.

Claims (3)

1. one kind for adding the compound anchored pile supporting of deep excavation, it is characterised in that: include original support system of being arranged in foundation ditch and with newly-increased support system;Original support system includes that the campshed one being made up of some support piles one and the stake apical cap beam one being arranged on foundation ditch surrounding, stake apical cap beam one are connected with support pile one top and are connected as a single entity by some support piles one;Newly-increased support system includes the campshed two being made up of some support piles two and the stake apical cap beam two being arranged in the region that some support piles one surround, stake apical cap beam two is connected with support pile two top and is connected as a single entity by some support piles two, it is less than at the bottom of the stake of support pile one at the bottom of the stake of support pile two, waist rail one it is provided with between campshed one and campshed two, described waist rail one is connected with campshed one, being provided with linking beam between campshed two and waist rail one, the stake apical cap beam two of campshed two and waist rail one are connected by linking beam.
A kind of compound anchored pile supporting for adding deep excavation, it is characterized in that: connecting on described campshed one has waist rail two, being provided with the anchor pole one being connected with waist rail two between adjacent support pile one, support pile one is linked as entirety with anchor pole one by waist rail two.
A kind of compound anchored pile supporting for adding deep excavation, it is characterised in that: being provided with the anchor pole two being connected with stake apical cap beam two between described adjacent support pile two, support pile is linked as entirety with anchor pole two by stake apical cap beam two.
CN201620204591.9U 2016-03-17 2016-03-17 A composite pile anchor supporting construction for deepening excavation Active CN205475257U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696602A (en) * 2016-03-17 2016-06-22 中南勘察设计院(湖北)有限责任公司 Composite pile-anchor supporting method and structure for deepening excavation
CN108824483A (en) * 2018-07-23 2018-11-16 中国建筑第八工程局有限公司 The external wall structure and its construction method of multi-storey basement
CN114108645A (en) * 2021-11-02 2022-03-01 广州地铁设计研究院股份有限公司 Foundation pit supporting structure adjacent to underground engineering and construction method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696602A (en) * 2016-03-17 2016-06-22 中南勘察设计院(湖北)有限责任公司 Composite pile-anchor supporting method and structure for deepening excavation
CN108824483A (en) * 2018-07-23 2018-11-16 中国建筑第八工程局有限公司 The external wall structure and its construction method of multi-storey basement
CN114108645A (en) * 2021-11-02 2022-03-01 广州地铁设计研究院股份有限公司 Foundation pit supporting structure adjacent to underground engineering and construction method thereof

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