Cement mixing pile composite supporting system provided with peripheral concrete members

A technology for cement mixing piles and composite support, which is applied in basic structure engineering, excavation, construction, etc., can solve the problems of affecting construction period, large width, low tensile strength of cement mixing piles, etc. Widen the effect of using

Inactive Publication Date: 2013-12-25
CHINA MCC20 GRP CORP
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  • Abstract
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  • Claims
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Problems solved by technology

However, in recent years, due to the shortening of the commissioning period, the supporting substations close to the main project are often constructed first, which makes it impossible to carry out grading excavation of this part of the foundation pit
[0003] If simple cement mixing piles are used, the low tensile strength of cement mixing piles will cause the width to be too large to be used in a narrow space; if single-row concrete pouring p...

Method used

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  • Cement mixing pile composite supporting system provided with peripheral concrete members
  • Cement mixing pile composite supporting system provided with peripheral concrete members

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Embodiment Construction

[0013] Such as figure 1 Shown: a cement mixing pile composite support system with concrete components on the periphery, including composite piles arranged around the foundation pit, concrete trusses 2 arranged on the top of the composite pile, and steel inclined piles between the bottom of the composite pile foundation pit Support 3.

[0014] see figure 2 The composite pile includes a cement mixing pile 11 and cast-in-place piles 12 on both sides thereof.

[0015] In the invention, cast-in-situ piles are arranged on both sides of the cement mixing pile, and concrete trusses are arranged on the top to form a composite support structure, and then the safe excavation of the foundation pit is realized through a divisional excavation method. It mainly solves the problems that the tensile strength of the cement mixing pile is too low, and it is easy to cause local damage when the support is set.

[0016] The front and rear rows of piles and the top concrete truss of the present ...

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Abstract

The invention relates to a foundation pit supporting system, in particular to a cement mixing pile composite supporting system. The cement mixing pile composite supporting system provided with peripheral concrete members comprises composite piles, concrete trusses and steel inclined struts, wherein the composite piles are arranged around foundation pits, the concrete trusses are respectively arranged at top parts of the composite piles, and the steel inclined struts are respectively arranged between bottoms of foundation pits of each two composite piles. The cement mixing pile composite supporting system provided by the invention is higher in tensile strength and bending resistance.

Description

technical field [0001] The invention relates to a foundation pit support system, in particular to a cement mixing pile composite support system. Background technique [0002] Most of the foundation pits of metallurgical hot rolling projects are super-large and complex deep foundation pits, and the surrounding areas of the construction are mostly open areas. The requirements for the deformation of the foundation pits are not strict, so the main part basically adopts the idea of ​​sloping excavation for earthwork excavation. However, in recent years, due to the shortening of the commissioning period, the supporting substations close to the main project are often constructed first, which makes it impossible to carry out grading excavation of this part of the foundation pit. [0003] If simple cement mixing piles are used, the low tensile strength of cement mixing piles will cause the width to be too large to be used in a narrow space; if single-row concrete pouring piles + part...

Claims

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Application Information

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IPC IPC(8): E02D17/04
Inventor 巩俊松
Owner CHINA MCC20 GRP CORP
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