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Axial force compensation system of large deep foundation pit steel supporting system

A compensation system and steel support technology, applied in basic structure engineering, excavation, construction, etc., can solve the problems of uneven distribution of support axial force, difficult adjustment, etc., to ensure free transmission, reduce friction, and reduce frictional resistance. Effect

Active Publication Date: 2016-05-11
CHINA CONSTR EIGHT ENG DIV CORP LTD
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an axial force compensation system for a large deep foundation pit steel support system, which can effectively solve the problems of uneven distribution of support axial force and difficult adjustment in large foundation pits

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  • Axial force compensation system of large deep foundation pit steel supporting system
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  • Axial force compensation system of large deep foundation pit steel supporting system

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] First, see figure 1 and figure 2 As shown, the large-scale deep foundation pit steel support system is mainly composed of support structure, purlin structure 21 and axial force compensation system. The purlin structure 21 is arranged for a week along the foundation pit wall 10, and the bottom of the purlin structure 21 is provided with a triangular bracket 211 for supporting and positioning the purlin structure 21, such as figure 2 Shown; Angle brace 212 can also be set at the corner of purlin structure 21, as figure 1 As shown, to strengthen the overall stability of the purlin structure 21 and the foundation pit wall 10. The support structure includes a steel support 11 supported in the purlin structure 21 and a vertical support 12 supported between the bottom of the steel support 11 and the bottom of the foundation pit. ...

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Abstract

The invention discloses an axial force compensation system of a large deep foundation pit steel supporting system. The steel supporting system comprises a steel support supported in a foundation pit. The steel support comprises at least one first supporting unit and a second supporting unit. The first supporting unit and the second supporting unit abut against each other along the same axis. The axial force compensation system comprises a hydraulic servo device and a relay device, the hydraulic servo device is mounted at the end of the steel support, and the relay device comprises a relay jack mounted between the first supporting unit and the second supporting unit, and a force transfer assembly mounted on the outer side of the relay jack. The first end of the force transfer assembly extends in the direction of the first supporting unit and is fixedly connected with the first supporting unit, and the second end of the force transfer assembly extends in the direction of the second supporting unit and is in sliding connection with the second supporting unit. According to the axial force compensation system, axial force compensation and adjustment of the foundation pit steel support are completed together through the synergistic effect of the hydraulic servo device mounted at the end of the foundation pit steel support and the relay device mounted in the middle of the foundation pit steel support.

Description

technical field [0001] The invention relates to the field of foundation pit support, in particular to an axial force compensation system for a large deep foundation pit steel support system. Background technique [0002] The use of assembled steel support systems in large-scale deep foundation pit projects can improve construction efficiency and reduce the impact of construction on the environment. As we all know, the conventional axial force compensation device is generally installed at the end of the supporting structure, which cannot solve the problem of uneven distribution of supporting axial force and difficult adjustment in large foundation pits. Moreover, the ultra-long steel support structure has problems such as expansion and contraction with temperature changes and uneven distribution of axial force in space, which affects the efficiency of the steel support and even endangers the safety of the support system. Therefore, it is necessary to install a combined axial ...

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Application Information

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IPC IPC(8): E02D17/04
CPCE02D17/04E02D2300/0029
Inventor 马荣全王浩孙旻徐云峰
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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