本文论述了川岩地区主要构造断裂带的基本特征及其对喀斯特溶洞和洼地的控制作用。指出该区几个大型水平溶洞或地下河主要受晚期近东西向张裂带,以及北东向张剪裂带联合控制。川岩水库的主要渗漏地段不是库区南部,而应是西部。主要渗漏方式是管道式。此外对茅禾洞—十八涧地下河的存在及其有关的“反向渗漏”问题提出了异见。 This article discusses the basic characteristics of the main tectonic fault zone and its control over karst caves and depressions in the area of ​​Chuanyan. It is pointed out that several large-scale horizontal caves or underground rivers in this area are mainly controlled by the late-easterly-west and north-easterly shear zones. The main seepage area of ​​Chuanyan Reservoir is not the southern part of the reservoir area but the west part. The main way of leakage is plumbing. In addition, Maohe Cave - eighteen jian underground river and its existence of the “reverse leakage” put forward the disagreement.