Experimental Study on Sliding Soil of Ionic Soil Stabilizer-Reinforces

Research and development of fast, economic and effective controlling method and theory of landslide has always been the focus of anti-sliding projects for all the countries.In this research, a new kind of economic and suitable Ionic Soil Stabilizer (ISS for short) for improving the shear strength of sliding soil is studied.The sliding soil is treated by different matches of ISS and water at first, then is tested in the Atterberg limits test, direct shear test, routine consolidation test and free swell test.The results show that the plastic index decreases, and the cohesion increases and the void-ratio deflates and the free swell shrinks after mixing the ISS into the sliding soil of landslide.The mechanism is that the sliding soil that consists mainly of clay soil is mixed with ISS, which can replace the exchangeable cationic of clay surface, changes the pair-electricity layer of soil grain surface, reduces the thickness of adsorbed water, transforms the hydrophilic sliding soil to the hydrophobic and increases the shear strength of sliding soil by the function of physics and chemistry.