The Quantitative Research And Relativity Analysis Of Soil Parameters' Spaceial Variation

The soil parameter is the basic parameter in the soil engineering design, but the variety of soil parameter have the very strong region characteristic. At the same time the space variation of the soil parameter already drive people a cognition, combine to lead into the dependable analysis of the soil engineering gradually. At proceed the soil engineering dependable design with study, often use the space characteristic of the soil parameter, therefore have the important meaning to the research of the rock soil parameter space variation characteristic.This text with the theories of geology statistics ( space information statistics) as foundation, proceed into the quantitative analysis about the space variation of the soil parameter,and compute the estimate of the soil parameter and the related coefficient of each soil parameter, the main contents is as follows:1) Collecting the data of the Geology Institute of Tianjin City, I selected a small district. There are totally 68 drill holes, 9 mechanics layers. The chosen parameters are the contain water measure, natural heavy, porous ratio, liquid limit, the index of compact, liquid index, compression coefficient, compress the mold measures, inside rub Cape, cohesive force, penetration test blowcount.2) According to the principle of geologic statistics, applying the method of the Variation Function, studying the spatial relativity and variety characteristic of rock-soil parameter, and using the globosity model theories variation function regression to obtain the theories modelparameter(a,C₀,C) about the space various characteristic of each rock-soil parameter ,so I canannounce to public the covariance regulation of the soil parameter s space variety.3) Applying the method of kriging in geology statistics I made the space variety appearance imitates to the rock-soil parameter, by using the software of Surfer drew the rock-soil parameter equivalent line sketch and the stereoscopic diagram to show that the space distributional regulation of the soil parameter.4) According to the statistics related principle I analyzed each rock-soil parameter s mutually related characteristic, computing the related coefficient of the rock-soil parameter, thus I can get the related regulation of the rock-soil parameter according to the size of the related coefficient.5) The application of Matlab language I carried on the experiment variation function calculation, the theories variation function parameter calculation,and the procedure of theories sketch regression.