Calculation Method of Safe Thickness of Bearing Layer of Pile Foundation in Karst Area

A technology of safety thickness and calculation method, applied in calculation, special data processing application, instrument, etc., can solve problems such as not considering the influence of self-weight structure
CN104809312BActive Publication Date: 2017-12-05CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
Publication Date
2017-12-05

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Abstract

The invention discloses a calculation method of safety thickness of supporting layers of pile foundations of karst areas. The calculation method comprises the following steps: step 1, establishing an assumed model, and simplifying the model; step 2, performing theoretical analysis on the safety thickness of the supporting layers; step 3, performing preliminary checking calculation on the safety thickness of the supporting layers; step 4, performing accurate checking calculation on the safety thickness of the supporting layers; step 5, judging whether the supporting layers satisfy calculation requirements. The calculation method disclosed by the invention is simple in calculation, facilitates design optimization of pile foundations, and is high in operability; in addition, through the adoption of the calculation method, the improvement of relevant norms is promoted, so that huge economic benefits and social benefits can be brought.
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Description

technical field

[0001] The invention relates to a method for judging the safe thickness of a bearing layer when a pile foundation is placed above a hollow area, in particular to a method for calculating the safe thickness of a bearing layer of a pile foundation in a karst area. Background technique

[0002] my country's karst landforms are widely distributed and large in area. Due to the existence of karst caves, they are mostly in the form of dissolution, karst trenches, karst troughs, small and medium-sized beaded caves, or a single small karst cave fissure, which brings great difficulties to the design and construction of pile foundations in karst areas. Existing design codes and industry standards have few provisions on pile foundation design in karst areas, and the content is too abstract, or the requirements are too conservative, and the overall operability is not strong. In order to ensure the quality of the pile foundation, the design principle of "one column, one p...

Claims

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