THE LEAKAGE PROBLEM RESEARCH OF NAN CHUAN RESERVOIR DAM SITE IN HUBEI PROVINCE

摘要

The dam site bedrock of Nan Chuan reservoir is the Cambrian dolomite, and the dam foundation is completely located on the fracture zone and influence belt of the fault, with rocks broken, karst developing comparatively well. Many kinds of methods are used in geology, for example, mapping, exploration, acoustic log, television recording, water injection, water pressure, laboratory soil test, connection test, water level observation and so on. The seepage conditions of the dam base, dam body and the contact zone of the two have been verified, which provides reliable and detailed geological data for the danger control and reinforcement of the reservoir.