人工抽水引起土洞塌陷的可能性

在人工抽水过程中,抽水量越大、距抽水井越近,越可能产生土洞塌陷.在砂土层中,抽水持续时间越长,地下水潜蚀作用越强,越有可能产生土洞塌陷;在粘性土层中,避免反复频繁抽水及适当减少抽水初期的抽水量,有利于减少土洞塌陷的可能性.

POSSIBITY OF SOIL CAVE CALLAPSE CAUSED BY ARTIFICIAL WATER PUMP

In the process of water pump, the possibity of soil cave collapse will be increased when the quantity of pumping water become larger or the distance from pumping well become less. In sandy soil, the longer time for continuous pumping, the more possible for causing creep soil cave collapse. In cohesive soil, avoiding continual pumping water and reducing the quantity of pumping water properly at the beginning will be helpful to reduce the possibity of soil cave collapse.