论文部分内容阅读
渝东平行岭谷区土壤的蠕移,主要发生在侏罗系下中统自流井组(J1-2z)地层中,在水体和重力作用下,风化岩层和上覆土层沿斜坡缓慢向下蠕移,对农地、民房及水利设施等产生严重破坏。分析测定表明研究区的粘性岩土被为低膨胀性粘性土,粘粒矿物以高岭石为主,蒙脱石为次,化学成分以SiO2胶粒含量最高。最后提出建筑物的地基处理和湿度指标控制、农田基本建设及采用区域环境绿化增强土壤排水能力等方面的防治措施。
Soil creep in the Yungdong parallel Linggu area mainly occurs in the Lower Jurassic Artesian well (J1-2z) formation. Under the action of water bodies and gravity, the weathered rock formations and the overlying soil slowly creep down the slope , Causing serious damage to agricultural land, houses and water conservancy facilities. The analysis shows that the clay in the study area is low swelling clay, the clay minerals are mainly kaolinite, and the montmorillonite is the second, with the highest content of silica gel particles in the chemical composition. In the end, the prevention and cure measures of the foundation treatment and humidity index control of the building, the basic construction of the farmland and the adoption of the regional environmental greening to enhance the drainage capacity of the soil are put forward.