However, the underground water lowering, which takes place in the water bearing layer in chief, has the inevitable influence on the surface subsidence. 矿区地下水位降低的主要原因为承压水通过采动裂隙向下渗流、煤层开采前顶板岩溶含水岩层的疏干以及地面人为钻井取水。
But, the above method can not be used in water/ oil bearing beds or water layer which have been injected. 但含油水层或水层投注后不能用上述方法确定动态残余油饱和度。
Research on Exploitation of Water Bearing Layer and Seawater Invasion to Coastal Areas 沿海地区承压水开采与海水入侵的研究
For the purpose of safe operation, the soft foundation shall be improved using the follow methods: specify loading and water filling rate according to engineering characteristics of bearing compression layer of the foundation; 为保证软地基土油罐的安全使用,需要对软基础合理处理,即根据地基持力压缩层的工程特性决定加荷充水速率的大小;
The Study of Hydrogeological Test for Poor Water Bearing Layer 弱含水层水文地质试验研究
The functions of clay layer under Quaternary in under-water mining is studied, and when thickness of clay layer is larger than 3m, work face water inrush quantity is very little from upper water bearing layer. 研究了第四系底部黏土层在水体下采煤中的作用,认识到当底黏厚度大于3m时,上部含水层对工作面充水量很小。