CN203613546U - Strain compensation device of reinforced concrete inner support in ultra-large type foundation pit - Google Patents

Strain compensation device of reinforced concrete inner support in ultra-large type foundation pit Download PDF

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Publication number
CN203613546U
CN203613546U CN201320834798.0U CN201320834798U CN203613546U CN 203613546 U CN203613546 U CN 203613546U CN 201320834798 U CN201320834798 U CN 201320834798U CN 203613546 U CN203613546 U CN 203613546U
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CN
China
Prior art keywords
support
strain compensation
reinforced concrete
foundation pit
super
Prior art date
Application number
CN201320834798.0U
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Chinese (zh)
Inventor
周湘渝
朱宗明
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广东省建工设计院
广州市科地工程技术有限公司
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Priority to CN201320834798.0U priority Critical patent/CN203613546U/en
Application granted granted Critical
Publication of CN203613546U publication Critical patent/CN203613546U/en

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Abstract

The utility model discloses a strain compensation device of a reinforced concrete inner support in an ultra-large type foundation pit. The strain compensation device of the reinforced concrete inner support in the ultra-large type foundation pit comprises a strain compensation system, a hydraulic control system and a fixing support, wherein the strain compensation system comprises a locker capable of connecting two sections of supporting beams, and a lifting jack capable of applying horizontal pressure to the supporting beams, the lifting jack is connected with the hydraulic control system, the supporting beams and the strain compensation system are arranged on the fixing support, and the fixing support comprises a support beam and a hinge support. The strain compensation device of the reinforced concrete inner support in the ultra-large type foundation pit is novel in structure, is capable of effectively compensating partial compression deformation of the reinforced concrete inner support, and further achieves the purposes of enlarging the use range of the concrete inner support and controlling displacement of the foundation pit.

Description

The strain compensation device of reinforced concrete inner support in super-giant foundation pit
Technical field
The utility model relates to the realm of building construction, relates in particular to a kind of strain compensation device of reinforced concrete inner support in super-giant foundation pit.
Background technology
In the work progress of underground structure, need to carry out supporting to foundation ditch, and in the design of its support process of foundation ditch, generally adopt not only economy but also safe reinforced concrete inner support.But, in Practical Project, often run into the superhuge foundation ditch that some length of sides exceed 100m.For this type of super-giant foundation pit, reinforced concrete inner support its elastoplasticity compressive strain under soil pressure effect is larger, has exceeded the allowable displacement of foundation ditch, has seriously limited the scope of application of reinforced concrete inner support.Particularly be limited at some prestress anchorage cables the region using, the excavation of deep foundation ditch lacks effective supporting means.This utility model designs in order to solve problems exactly.
Utility model content
The utility model provides the strain compensation device of reinforced concrete inner support in a kind of super-giant foundation pit, novel structure, and Partial shrinkage distortion that can effective compensation reinforced concrete inner support, and then make it to be widely adopted in each occasion.
The technical solution of the utility model is: the strain compensation device of reinforced concrete inner support in a kind of super-giant foundation pit, comprise strain compensation system, hydraulic control system and fixed bearing, described strain compensation system comprises can be by lock connected two sections of brace summers, can apply to described brace summer the jack of horizontal pressure force, and described jack is connected with described hydraulic control system; Described brace summer and strain compensation system are placed on described fixed bearing.
Further, described fixed bearing comprises pedestal beam and hinged.
Further, the temporary construction platform that described pedestal beam operates as strain compensation simultaneously.
Further, described pedestal beam is except providing vertical support power, and also can be brace summer provides the constraint of horizontal direction.
Further, the link end face of described jack one section of brace summer located therein.
Further, described lock, between two sections of brace summers, and is vertically being arranged symmetrically with.
Further, described lock adopts screw-type structure, can be aided with if desired wedge type steel plate.
Further, described hydraulic control system comprises control device and coupled hydraulic pump; Described jack is connected with hydraulic pump.
The beneficial effects of the utility model are:
Compared with prior art, the strain compensation device of reinforced concrete inner support in super-giant foundation pit of the present utility model, in pit earthwork digging process, produce displacement by adjusting strain compensation device, be used for compensating the Partial shrinkage distortion of reinforced concrete inner support, reach the object of effectively controlling foundation ditch displacement from face, the supporting method of this economy of reinforced concrete inner support, safety can both be widely adopted in various super-giant foundation pits, and reliability is high, reduces construction cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the layout schematic diagram of the strain compensation device of reinforced concrete inner support in super-giant foundation pit of the present utility model;
Fig. 2 is the mounting structure enlarged diagram of the strain compensation device of reinforced concrete inner support in super-giant foundation pit of the present utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail.
The specific embodiment of the present utility model as shown in Figure 1 and Figure 2, comprises concrete inner support layout system and strain compensation system.In inner support layout system, strain compensation system is generally arranged symmetrically with at the concrete support beam two ends of overlength, under given conditions also can flexible arrangement.Should become compensation arrangement comprise can be by lock 2 connected two sections of brace summers 1, can apply the jack 3 of horizontal pressure force and into jack 3 provides the hydraulic control system of pressure, jack 3 is connected with hydraulic control system to brace summer 1.
Should become compensation arrangement and also comprise the pedestal beam 6 that is positioned at brace summer 1 below, between this pedestal beam 6 and brace summer 1, be connected by hinged 7.Pedestal beam 6 is not only for brace summer 1 provides vertical support power, be to carry out vertical load transmission by hinged 7 between pedestal beam 6 and brace summer 1, and pedestal beam 6 also can be brace summer 1 and provides the constraint of horizontal direction, simultaneously as the temporary construction platform of strain compensation operation.The link end face of jack 3 one section of brace summer 1 located therein.Lock 2, between two sections of brace summers 1, and is vertically arranged symmetrically with.Lock adopts screw-type structure, is aided with if desired wedge type steel plate, to guarantee the transmission of axial force between brace summer 1.Hydraulic control system comprises control device 4 and coupled hydraulic pump 5; Jack 3 is connected with hydraulic pump 5.
Strain compensation device of the present utility model, specific implementation process and operating principle are as follows: referring to Fig. 1 and Fig. 2, for super-giant foundation pit, every brace summer 1 is disconnected in end, and strain compensation device A is installed between two sections of brace summers 1.Pedestal beam 6 is installed on the below of two or more pieces brace summer 1, and the position intersecting with brace summer 1 at pedestal beam 6 is connected by hinged 7.In work progress, by hydraulic control system control jack 3, brace summer 1 is exerted pressure, in the time that pressure reaches preset value, lock in time lock 2, to guarantee the transmission of brace summer 1 between centers power.By and above-mentioned steps, in supporting structure system, there is prestressing force, so in use will effectively reduce the compressive strain of brace summer 1, finally reach the object of controlling foundation ditch displacement.
The above embodiments are only preferred embodiment of the present utility model, can not limit interest field of the present utility model with this, and therefore, the equivalent variations of doing according to the utility model claim, still belongs to the scope that the utility model is contained.

Claims (9)

1. the strain compensation device of reinforced concrete inner support in a super-giant foundation pit, it is characterized in that comprising strain compensation system, hydraulic control system and fixed bearing, described strain compensation system comprises can be by lock (2) connected two sections of brace summers (1), can apply to described brace summer (1) jack (3) of horizontal pressure force, and described jack (3) is connected with described hydraulic control system; Described brace summer (1) and strain compensation system are placed on described fixed bearing.
2. the strain compensation device of reinforced concrete inner support in super-giant foundation pit according to claim 1, is characterized in that described fixed bearing comprises pedestal beam (6) and hinged (7).
3. the strain compensation device of reinforced concrete inner support in super-giant foundation pit according to claim 2, is characterized in that the temporary construction platform that described pedestal beam (6) operates as strain compensation simultaneously.
4. the strain compensation device of reinforced concrete inner support in super-giant foundation pit according to claim 3, is characterized in that described pedestal beam (6) is the constraint that brace summer (1) provides horizontal direction.
5. the strain compensation device of reinforced concrete inner support in super-giant foundation pit according to claim 4, the link end face of jack (3) the one section of brace summer located therein (1) described in it is characterized in that.
6. the strain compensation device of reinforced concrete inner support in super-giant foundation pit according to claim 5, is characterized in that described lock (2) is positioned between two sections of brace summers (1), and is vertically being arranged symmetrically with.
7. the strain compensation device of reinforced concrete inner support in super-giant foundation pit according to claim 6, is characterized in that described lock (2) adopts screw-type structure.
8. the strain compensation device of reinforced concrete inner support in super-giant foundation pit according to claim 7, is characterized in that the lock (2) of described screw-type structure is aided with wedge type steel plate.
9. according to the strain compensation device of reinforced concrete inner support in the super-giant foundation pit described in any one in claim 1 to 8, it is characterized in that described hydraulic control system comprises control device (4) and coupled hydraulic pump (5); Described jack (3) is connected with hydraulic pump (5).
CN201320834798.0U 2013-12-16 2013-12-16 Strain compensation device of reinforced concrete inner support in ultra-large type foundation pit CN203613546U (en)

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Application Number Priority Date Filing Date Title
CN201320834798.0U CN203613546U (en) 2013-12-16 2013-12-16 Strain compensation device of reinforced concrete inner support in ultra-large type foundation pit

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064374A (en) * 2015-07-31 2015-11-18 河海大学 Large-span steel tube supporting beam with accurately-adjusted length
CN105332379A (en) * 2014-08-15 2016-02-17 上海骋浩机械有限公司 Horizontal foundation pit supporting system
CN106555404A (en) * 2016-10-21 2017-04-05 东通岩土科技(杭州)有限公司 Foundation ditch shaped steel inner support axle power self compensating system
CN106703046A (en) * 2017-03-17 2017-05-24 上海同禾土木工程科技有限公司 Parallel-connection double-mechanical-lock support head assembly of support axial force servosystem
CN107059880A (en) * 2017-03-09 2017-08-18 中国建筑第八工程局有限公司 The ruggedized construction and its construction method of the concrete assembled shaped steel mixing support system of super-sized foundation pit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105332379A (en) * 2014-08-15 2016-02-17 上海骋浩机械有限公司 Horizontal foundation pit supporting system
CN105064374A (en) * 2015-07-31 2015-11-18 河海大学 Large-span steel tube supporting beam with accurately-adjusted length
CN105064374B (en) * 2015-07-31 2016-08-24 河海大学 A kind of long-span steel pipe support beam that can accurately regulate length
CN106555404A (en) * 2016-10-21 2017-04-05 东通岩土科技(杭州)有限公司 Foundation ditch shaped steel inner support axle power self compensating system
CN106555404B (en) * 2016-10-21 2018-12-21 东通岩土科技(杭州)有限公司 Foundation pit fashioned iron inner support axle power self compensating system
CN107059880A (en) * 2017-03-09 2017-08-18 中国建筑第八工程局有限公司 The ruggedized construction and its construction method of the concrete assembled shaped steel mixing support system of super-sized foundation pit
CN107059880B (en) * 2017-03-09 2020-08-04 中国建筑第八工程局有限公司 Reinforcing structure of concrete-fabricated section steel mixed support system of ultra-large deep foundation pit and construction method thereof
CN106703046A (en) * 2017-03-17 2017-05-24 上海同禾土木工程科技有限公司 Parallel-connection double-mechanical-lock support head assembly of support axial force servosystem
CN106703046B (en) * 2017-03-17 2019-03-01 上海同禾土木工程科技有限公司 A kind of double-mechanical in parallel lock branch fastener assembly of axial force of the supports servo-system

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