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Foundation pile static load testing and pile press method for buttress outer eccentricity heap loading method

A technology of surcharge method and foundation pile, which is applied in the test of foundation structure, sheet pile wall, foundation structure engineering, etc. It can solve the problems that the static load test of surcharge method cannot be used, and achieve the effect of saving money and construction period

Active Publication Date: 2015-04-22
ZHENGZHOU UNIV
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Problems solved by technology

Most of the foundation pits of modern buildings are mainly vertical excavation. The side piles or engineering piles close to the edge of the foundation pit must provide a certain site due to the requirements of the piled load. Due to site restrictions and safety factors, it is impossible to Static load test by stacking method

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  • Foundation pile static load testing and pile press method for buttress outer eccentricity heap loading method

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the embodiments. The following descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention to other forms. Changes to equivalent embodiments with equivalent changes. Any simple modifications or equivalent changes made to the above embodiments according to the technical essence of the present invention without departing from the solution content of the present invention fall within the protection scope of the present invention.

[0020] Zhengzhou Jinshui Wanda Project, the depth of the foundation pit is more than 15m. The 3# super high-rise residential building uses bored piles. The total number of piles is 235, and the effective pile length is 15.0m. The force is 5400kN. After the construction of the engineering piles is completed, the engineering piles are randomly inspected. The bearing capacity of the engineering piles is significan...

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Abstract

The invention discloses a foundation pile static load testing and pile press method for a buttress outer eccentricity heap loading method. According to the method, jacks are arranged on foundation piles in place, proper main beams are selected to be arranged on the jacks, buttresses are arranged in the direction parallel to the main beams, secondary beams are arranged on the buttresses and placed on the unified plane uniformly and symmetrically, heap loading materials are hoisted onto the secondary beams, and oil is supplied to the jacks for carrying out static load testing or pile press construction. The method which is convenient and fast to use and practical is provided for carrying out pile press treatment and bearing capacity static load testing on side piles or engineering piles close to the edge of a foundation pit.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a method for static load testing and pile pressing of foundation piles with the eccentric surcharge method outside the pier. Background technique [0002] At this stage, there are more and more high-rise and super high-rise buildings, and the corresponding deep foundation pit excavation depth is getting deeper and deeper, and the design bearing capacity of the foundation piles used in the buildings is getting larger and larger. The test of the anchor pile method is not suitable. Due to the limitation of the pile loading site, the bearing capacity test cannot be carried out by the pile loading method. Sometimes there are major engineering safety hazards, or when the engineering piles are found to have insufficient bearing capacity after testing, the distance from the foundation pit cannot be normally measured. The engineering piles near the edge are proce...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00
CPCE02D7/20E02D33/00
Inventor 吴义章宋国华李阳贾承辉郑冰
Owner ZHENGZHOU UNIV
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