Study On The Engineering Property,Structure And Component Of Artificially Frost-thawed Soils Of Main Well In The Liuzhuang Coal Mine Of Huainan

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 fo 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 analysis of XDA and chemistry total analysis of undisturbed soil and frost-thawed soil,found the relationship between mineral component,chemistry component and engineering property.III.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.