Experiment Research On Microstructure Of Smart Soil Under Continuous Loads And Chemical Erosion Actions

Abstract: Based on summarization and analysis on the lack of microstructures test system and analyse software, the text developed the development and debugging of Autometic 3D Tracking Optic Test System (ATOTS). By means of the ameliorative microstructure test system, experimentalized microstructures of Smart Soil, observed the diversification of microstructures of Smart Soil under continuous loads, investigated the change law of configuration character parameter and be a contrast to the change law of configuration parameter of soil cement and clayey soil. In order to know the resist of Smart Soil, investigated the chemical reaction process of Smart Soil and the parameter change law of microstructure by means of the chemical erosion test, thereby the engineering characteristic of Smart Soil in the microstructure level was explained and known. The major coverage of this paper as follows:1. Based on reading a great deal of literature relative to the quantitative analysis method of microstructure and experiment means at home and abroad, the micro structural static optical test system was evolved into ATOTS, by doing so, multi-condition researches of soil microstructure can be taken.2. Figured out the problem of magnification times and depth of field by means of high resolving power technology based on wavelet transform, and improved the accuracy and reliability of structural characteristic parameter.3. By using reconstructed ATOTS of soil microstructures, test the undisturbed and disturbed specimen of the microstructures of Smart Soil under uniaxial load and three axial load respectively, gained the quantitative information of microstructure of soil specimen under continuous loads, seek the change law of characteristic parameter, and response relation of macroscopical mechanics.4. Contrasted the characteristic parameter evolution law of microstructure of Smart Soil under continuous loads with cement soil and clayey soil.5. Quantitative analyzed the mass loss rate, ionic species, quality change of Smart Soil under chemical erosion actions, deduced the ionic equation of chemical response process.6. By quantitative analyzing the transformation of the microstructure of Smart Soil before and after chemical erosion, investigated the evolution law of the microstructure of Smart Soil under chemical erosion and its infection relative to the macroscopical mechanics characteristic of soil.