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Occlusion pile soil-baffling structure design method

A design method and technology for retaining structures, which are applied to underwater structures, infrastructure engineering, sheet pile walls, etc., can solve the problems of insufficient anti-seepage stability of the enclosure structure, high reinforcement ratio, and increased engineering cost.

Inactive Publication Date: 2008-11-19
TONGJI UNIV
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Problems solved by technology

[0004] The general design of occlusal pile enclosure structure mainly adopts the traditional direct equivalent stiffness method which does not consider the interaction of meat and vegetable piles. The occlusal amount of the protection structure design is designed according to the construction routine. For the foundation pit enclosure structure with different excavation depths, due to the influence of the verticality of the pile and the transverse bending, it is easy to cause insufficient lap joints between the lower piles, which is easy to cause the enclosure structure to be damaged. Insufficient stability against seepage

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  • Occlusion pile soil-baffling structure design method
  • Occlusion pile soil-baffling structure design method
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Embodiment Construction

[0051] The design method of the occlusal pile soil retaining structure according to the present invention includes the following steps, which will be described in detail below with reference to the accompanying drawings.

[0052] Starting from the local force mechanism of the occlusal piles, the force transmission mode between the meat and vegetable piles is studied, and the design and calculation method of the occlusal piles is established, which replaces the traditional direct equivalent stiffness method; when the occlusal piles are used as an enclosure structure, they should be considered in the design. The key parameters are studied, and the calculation method of the reasonable occlusal amount is proposed according to the verticality of the pile construction of the occlusal pile and the force failure characteristics of the occlusal surface. At the same time, the stiffness calculation of the occlusal pile with different collocation forms and the design method of section reinf...

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Abstract

The invention discloses a method for designing an interlocking pile soil retaining structure, which is a design and calculation method for distinguishing different matching forms of reinforced and plain concrete piles as for interlocking piles. By adoption of the method, the defect that the prior direct equivalent stiffness method can not take the mechanical property of an occlusal surface and the stiffness contribution of an adjacent pile into consideration, thereby the design of the piles can be more reliable, more reasonable and more economic.

Description

technical field [0001] The invention relates to a design calculation method of a retaining structure in the field of civil engineering, in particular to a novel design calculation method of an occlusal pile retaining structure. Background technique [0002] Because the occlusal piles are piles and piles occluded with each other to form a wall, which jointly undertake the functions of water-stopping and soil-retaining, with high rigidity and small deformation, it can be designed and used as a main structure or a part of the main structure. The meat piles are reinforced concrete piles, and the plain piles are concrete piles without reinforcement. [0003] As the retaining structure of the occlusal pile, there are mainly two types of damage: 1. Instability damage of the foundation pit or bending fracture damage of the meat pile. Through calculation, the relevant parameters of the pile (pile length, pile diameter, reinforcement ); 2. Part of the concrete on the occlusal surface...

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Application Information

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IPC IPC(8): E02D29/02E02D5/18
Inventor 廖少明周学领李文林李克先
Owner TONGJI UNIV
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