福建省古田溪一级大坝坝基帷幕运行性态分析评价

Analysis and Evaluation on Operating Behaviors about Impervious Curtain of Dam Foundation in Gutianxi Ⅰ Dam in Fujian Province

古田溪一级大坝修建于建国初期,运行已近50 a,坝基的防渗帷幕已有一定的削弱。通过水质分析、环境水对帷幕的作用、坝基渗漏水分析、坝基扬压力变化分析对古田溪一级大坝帷幕目前的状况进行综合评价。

Gutianxi I Dam was built in the primary period of the founding of PRC. After operating near 50 years, the action of the impervious curtain of the dam foundation is weakened to a certain extent. The present operating behaviors of the impervious curtain of the dam are evaluated comprehensively through analyzing the water quality, the action of environmental water on the curtain, the seepage water of the dam foundation and the variation of uplift pressure of the dam foundation.