Method for preparing soil for analogue test

Abstract

The invention discloses a manufacture method for analysis earth that includes the following steps: taking physical characteristic analysis to parent soil and the matter properties experiment of particle, proportion, density, unit weight and permeability coefficient; gaining the particle class curve, density, penetrating parameter from the experiments; fetching sample earth to make it close to the particle class curve; taking mechanical property and analysis of triaxiality compression shear; when the sample earth has the corresponding stress-strain, deformation-strain and penetrating parameter, taking large quantity matching according to the sample earth. The invention has close statics feature as undisturbed sand that could sharply save research outlay and shorten research process.

Description

technical field

[0001] The invention relates to a method for preparing soil for indoor barrel-shaped foundation small model test and centrifuge test in a concrete site of an ocean platform. Background technique

[0002] Indoor bucket foundation small model test and centrifuge test use a large amount of soil (about 1.5 tons). Therefore, selecting and determining the test soil is one of the primary and key problems to be solved in the barrel foundation test research. The determination of the test soil has certain difficulty. On the one hand, because of the high cost of offshore drilling sampling and the small amount of soil taken, the engineering department is actually unable to provide so much test soil. On the other hand, the oil company also requires that the final results of the research on the bearing capacity of the barrel foundation can be used for the barrel foundation design of the specific site of the offshore platform. According to the existing research results, f...

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