摘要
本文结合工程实例,探讨了高原型和山地型峡谷的岩溶发育及其水动力特征,指出岩溶水系的展布均具不均一性。高原型峡谷外源型岩溶洞穴较为发育,是古水文网变迁的基础上形成的,其洞穴水有着动态变化大、调蓄能力弱等特点,对库坝区渗漏的影响较大。而在山地型峡谷则相对发育着岩溶强径流带,其中部分横贯补径排区、倒虹吸管道型,并呈空间交叉状,但无水力联系,在一定条件下可形成向邻谷的渗漏。
With case histories, this paper discusses the karst development and its hydrodynamic characteristics at the plateau type and the mountain type gorges. It points the nonuniformity of the extent of karst water systems. For the plateau type gorges, the outer-source karst caves develope rather well. It is formed on the basis of the changes of paleo-hydrological nets. The karst waters are characterized by large dynamic changes and weak storage capacities. It influences greatly on the seepage at the reservoir site. For the mountain type gorge, it developes rather strong belt of karst run-off. It partly penetrates the supply and drainge regions. It may exhibit the inverted-siphon pipe pattern and cross each other in the space. They are not hydraulically correlated. under certain conditions they may form seepages to neighboring valleys.
出处
《勘察科学技术》
1992年第2期6-11,共6页
Site Investigation Science and Technology
