Cemented soil composite pre-fabricated screwed pile and pile forming method thereof

A technology of cement-soil piles and threaded piles, which can be applied to sheet pile walls, buildings, and foundation structure engineering. It can solve the problems of low strength and bearing capacity of composite piles, improve construction quality and efficiency, and avoid environmental pollution. , The effect of solving the difficulty of pile sinking

Inactive Publication Date: 2017-09-19
BEIJING RONGCHUANG GEOTECHNICAL ENG CO LTD
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Problems solved by technology

[0006] The invention provides a cement-soil composite prefabricated threaded pile and its pile forming method to solve the problem of low strength and bearing capacity of the existing composite pile

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  • Cemented soil composite pre-fabricated screwed pile and pile forming method thereof
  • Cemented soil composite pre-fabricated screwed pile and pile forming method thereof
  • Cemented soil composite pre-fabricated screwed pile and pile forming method thereof

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Embodiment Construction

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

[0028] Such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, the present invention proposes a cement-soil composite prefabricated threaded pile, and the cement-soil composite prefabricated threaded pile includes: a cement-soil pile 1 and a prefabricated threaded pile 2 arranged in the cement-soil pile; the prefabricated threaded pile 2 After the cement-soil pile is formed into a pile 1, it is inserted into the cement-soil pile 1 by a drilling rig (the prefabricated threaded pile 2 is screwed into the cement-soil pile 1 by the drilling rig). Through the compaction effect of the prefabricated threaded piles on the cement-soil piles during the placement process, the confining effect of the soil around the prefabricated threaded piles and the cem...

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Abstract

The invention provides a cement-soil composite prefabricated threaded pile and a pile forming method thereof. The cement-soil composite prefabricated threaded pile includes: a cement-soil pile and a prefabricated threaded pile arranged in the cement-soil pile; the prefabricated threaded pile is inserted into the cement-soil pile by a drilling machine after the cement-soil pile is piled. inside the pile. The method for forming a cement-soil composite prefabricated threaded pile includes the following steps: step A: first forming a cement-soil pile; step B: using a drilling rig to place the prefabricated threaded pile into the cement-soil pile to form a cement-soil composite prefabricated threaded pile. The present invention enhances the side-limiting effect of the soil around the prefabricated threaded pile and the cement-soil, increases the pile side frictional resistance of the prefabricated threaded pile, thereby forming a cement-soil composite prefabricated threaded pile with higher vertical compression resistance, pull-out resistance and horizontal bearing capacity .

Description

technical field [0001] The invention relates to the field of geotechnical engineering, in particular to a cement-soil composite prefabricated threaded pile and a pile forming method thereof. Background technique [0002] Composite pile is a new pile type proposed in the geotechnical field in recent years, which solves many problems such as stratum limitations, backward technology, and high engineering cost of traditional pile types. The method is to first construct the cement-soil outer pile, and then construct the core pile within a certain period of time after the construction of the cement-soil outer pile to form a composite pile with external flexibility and internal rigidity. The construction method of cement-soil external pile often adopts high-pressure rotary spraying, cement mixing or stirring rotary spraying, etc. After the pile is formed, the core pile is inserted by sinking, drilling or hammering to form a composite pile. Although there are many types of composit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/50E02D5/56
CPCE02D5/50E02D5/56E02D2200/1621
Inventor 张亮戴斌刘宏运朱允伟郭大庆马恩帅
Owner BEIJING RONGCHUANG GEOTECHNICAL ENG CO LTD
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