Abstract:Due to the special cause of process and environment, red clay is divided into peculiar soil,Soil and water effects on remodeling projects Guilin of red clay has a significant impact. This paper interior remodeling experimental study of red clay soil and water effects on the impact of marginal moisture content and swell-shrinking property of Guilin, so that we can study on inner mechanism of remodeling red clay. The results showed that, after soaking the critical moisture content of soil will change in sodium chloride solution, with the increase of solution concentration and calcium chloride solution soak the soil samples of liquid limit and plastic index, plastic limit decreases, and with the augmentation of the acidic and alkaline will further strengthen the trend. At the same time, soil samples free expansion rate, shrinking ratio, volume shrinking ratio will increase with the increase of solution concentration,Including free expansion rate in acid under the same conditions with the decrease of the pH value increases,shrinking ratio and volume shrinking ratio have no obvious regularity,under the same conditions of alkaline free expansion rate increases with the increase of PH value, shrinking ratio and volume shrinking ratio have no obvious regularity.