| As a leaved behind clay by artificially frozen earth shoring, the artificially frost-thawed soils has changed largely in phsio-mechanical properties and engineering properties relative to undisturbed soils,In this paper, taking the artificial frost-thawed soils of the main well in the Liuzhuang coal mine of Huainan as study objects, some methods were used to analyze the mineral element and microstructure of the main well groundwork, such as analysis of XDA, the method of polar microscope and SEM as well as chemistry total analysis; The effect of the result of teston mineral component was analyzed qualitatively by the test of frost heave, thawing settlement and creep consolidate. The primary results of study conclude 5 points:I. The artificially frost-thawed soils and undisturbed soils of main well in Liuzhuang coal mine of huainan was studied with the methods of XDA half-quantitative analysis and chemistry total analysis; the relative-content of chipping mineral and clay mineral were calculated quantificationally, as well as the content of chemic element of different stratums.II. Based on the analysis on the mini-structure of undisturbed soil and frost-thawed soil, the difference of physical quality and chemic quality were found on different mini- structure and the relation between them.III. Based on the frost heave test on undisturbed soil and frost-thawed soil, and thawing settlement test on frost-thawed soil, the disciplinarian of the frost heave and thawing settlement were found, which can ensured the quantity of frost heave and thawing settlement of every stratums.IV. The non-linear viscous-elastic consolidate-creep model named the standard linear model and Burgers model was established by consolidate-rheology test on every frost-thawed soil. The numerical commutation analysis was used on the selected model; the curve of the model was regressed by the least-square algorithm theory. Thus it can get the parameter of creep.
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