【摘要】 对圆梁山隧道毛坝向斜段揭露溶洞进行分析的基础上 ,结合向斜区岩溶分布的勘察 ,对毛坝段深层岩溶发育特征及影响因素进行了研究。认为岩溶水在水力坡度或压力水头 ,尤其是水重力的作用下有不断向深层运移的趋势 ,所以在水具有侵蚀性的前提下 ,岩溶也具有向深层发育的趋势 ,并在厚层隔水底板及排泄基准面附近形成岩溶较发育带。而岩溶分布的层位及构造部位 ,在同一地质单元中的浅层和深层区具有类似性更多还原

【Abstract】 Through analyzing the Maoba synclining karst cave exposed by the Yuanliangshan tunnel and the distinct distribution of karst in superficial layers, the authors identified characteristics of deep karst development and the contributing factors. The results indicated that the karst water moves downwards into the deep layers under favorable hydraulic gradients or pressure heads, especially under influence of water gravity. As a result, the karst is developed at depth with erosion of water. At the same time, a karst zone is developed between the thick confining bed and the base of the drainage. In the same geological formation, the similarity in distribution is observed for both shallow and deep layers.更多还原