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Structure of composite reinforcement pile capable of resisting budge of foundation and construction method

A technology of reinforced piles and foundations, which is applied in foundation structure engineering, sheet pile walls, buildings, etc., can solve the problems of large amount of steel bar consumption and high project cost, and achieve the effects of reducing steel bar consumption, saving construction costs, and convenient and quick construction

Active Publication Date: 2018-09-11
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Abstract
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Problems solved by technology

[0003] The traditional reinforced concrete pile foundation is one of the effective methods to resist the uplift of the foundation, but it consumes a lot of steel bars and the cost of the project is high

Method used

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  • Structure of composite reinforcement pile capable of resisting budge of foundation and construction method
  • Structure of composite reinforcement pile capable of resisting budge of foundation and construction method
  • Structure of composite reinforcement pile capable of resisting budge of foundation and construction method

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Embodiment Construction

[0018] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0019] refer to figure 1 and image 3 , a composite reinforced pile structure resisting foundation uplift of the present invention includes a fine stone concrete pouring body 2 and a composite reinforced cage 1 embedded therein. The composite reinforced cage 1 is composed of vertical geogrids 1.1 arranged at intervals in the circumferential direction and annular geogrids 1.2 arranged at vertical intervals. A quadrilateral mesh is formed between the adjacent two vertical geogrids 1.1 and the adjacent two annular geogrids 1.2, and the diameter of the inscribed circle of the mesh is not smaller than the maximum particle size of the fine stone concrete aggregate. The fine stone concrete pouring body 2 is formed by pouring fine stone concrete from the composite reinforced cage 1 into the foundation borehole, and a protective layer 2.2 is forme...

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Abstract

The invention discloses a structure of a composite reinforcement pile capable of resisting a budge of a foundation and a construction method. By adopting the structure of the composite reinforcement pile capable of resisting the budge of the foundation and the construction method, deformation of the bulge of the foundation is effectively weakened or eliminated, the running risk of high-speed trains is reduced, and the reduction on the construction cost of the high-speed railways is facilitated. The structure of the composite reinforcement pile comprises a fine aggregate concrete perfusion bodyand a composite reinforcement cage embedded in the fine aggregate concrete perfusion body, wherein the composite reinforcement cage is prepared from vertical geogrids which are circumferentially arranged at intervals and annular geogrids which are vertically arranged at intervals; the vertical geogrids and the annular geogrids are connected integrally in a convergent manner; quadrilateral mesh holes are formed between the two adjacent vertical geogrids and the two adjacent annular geogrids; and the diameters of inscribed circles of the mesh holes are not less than the maximum particle diameters of fine stone concrete aggregates. The fine aggregate concrete perfusion body is formed by perfusing fine stone concrete into foundation drill holes from the composite reinforcement cage, and a protective layer is formed between an outer wall of the composite reinforcement cage and hole walls of the foundation drill holes.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering pile foundations, in particular to a composite reinforced pile structure and construction method for resisting foundation uplift. technical background [0002] In recent years, with the acceleration of high-speed railway construction, more and more high-speed railways have been put into operation. However, a new uplift problem has been discovered during the operation process, that is, the uplift deformation of the foundation at the bottom of the geotechnical structure may occur. It is caused by various factors such as water immersion, cooling, fluctuation of groundwater level and release of ground stress. The deformation of foundation uplift is very harmful, and it is easy to cause cracking of ballastless track slabs of high-speed railways, causing major ballastless track diseases, and even endangering the driving safety of high-speed trains, especially low embankments or cutting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/34E02D31/10
CPCE02D5/34E02D31/10Y02W30/91
Inventor 陈伟志龚建辉王德军李安洪姚裕春陈裕刚曾永红郭在旭陈颖胡会星秦谢宇姚昊宇姜雷李高明冉令陈莹全艳
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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