Soilmass Deformation Simulator Experiment Investigation under Water-Soil's Long-Term Chemical Interaction and Certain Load in Urban

This paper general have summarized the inner connection among city region, underground water environmental variation and soil structural strength, have defined the mini scale structure concept of the soil. On the basis of the four basic forms of water-soil interaction, this paper have discussed the mechanism of water-soil's chemical interaction. From the chemical action angle which is easy to be neglected, author in particular analyse chemical action in water-soil's chemical interaction, through soilmass mini scale structure--the bridge, carry on the analysis of water-soil's chemical interaction. Pointing out under city normal temperature and ordinary pressure and slow underground water variation environment, environmental change can't destroy mineral pellet internal crystallization force, but it may make mineral particle or linking material among clay grains occur activation. The changeability of soil body nature will be measured by the structure - - especially mini scale structure, therefore propose that the mini scale structure is "platform" and main place where the water and soil action takes place and develops. Therefore author designed the simulated tests of three respects and studied under loading action different underground water environment in the chemical long-term water-soil interaction arousing soil body mini scale structure variation, and the mini scale structure variation arouse soil body mechanical nature change.