Method for determining pile spacing of anti-liquefying vibrating-impacting crushed-stone piles
A technology of vibrating crushed stone piles and pile spacing, which is applied in the fields of instrumentation, calculation, electrical digital data processing, etc., can solve the problem that the pile spacing is too safe, the total investment of the project is increased, and the drainage and shock absorption effects of the crushed stone piles are not considered. question
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[0055] The present invention will be further described below in conjunction with the accompanying drawings.
[0056] The invention is based on the test pile area of a 220 kV substation foundation site, and the vibrating crushed stone pile has an effective pile diameter of 0.9m, a pile distance of 2m, and a pile length of 10.5m, and is arranged in an equilateral triangle.
[0057] The method for determining the spacing between gravel piles is divided into three steps: judging the degree of liquefaction of the foundation soil according to the in-situ test, determining the dry density of the foundation soil between the piles required to eliminate liquefaction, and determining the pile spacing of the gravel piles. The details are as follows:
[0058] (1) Judging the degree of liquefaction of the foundation soil according to the in-situ test: the liquefaction judgment method of the foundation soil can adopt the following three methods or one of them;
[0059] 1) Critical standar...
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