泰安—旧县水源区岩溶水开采与地质环境的关系

Relation between Karstic Water Exploitation and Geological Environment in Tai′an-Jiuxian Water Source Area

泰安—旧县水源区岩溶水因高强度开采 ,1 989年起岩溶水降落漏斗和第四系孔隙水疏干区范围迅速扩大 ,同时产生大面积的地面塌陷和地裂缝 ,岩溶水水质也趋于劣化。而在1 993年关闭主要岩溶水开采井之后 ,岩溶水水位得以回升 ,水质变好 ,地面塌陷和地裂缝灾害减弱 ,并呈准稳定状态 ,说明合理开采地下水可以有效地保护地质环境。

Due to huge amount exploitation of karstic water in Tai′an-Jiuxian water source area, scope of karstic funnels and unwatering areas of Quaternary pore water enlarged quickly from 1989. Large square of collapes and cracks were produced at the same time, and karstic water quality got worsen. In 1993, after major karstic water mining wells were closed, karstic water level got higher, water quality became better and hazards of collapses and crack weaker. It showed that reasonable exploitation of underground water could protect geological environment effecively.