Seepage Safety Evaluation of Anhua Reservoir Dam in Zhuji City
In view of the flood control and detention function of Anhua Reservoir,the characteristics of low constant water level and the fact that the pressure measuring pipes were only laid on the crest and downstream slope of the dam,this paper calculated and analyzed the potential difference between the front and back of the inclined clay wall and the seepage gradient under the condition of high water level(design and check working conditions)according to the measured seepage data of the constant water level,and comprehensively evaluated the seepage safety of the dam.The results show that the seepage pressure water level at the back of the inclined wall of the dam is relatively stable;the water head of the lower side of the inclined wall of the dam is reduced by more than 70％compared with the water level of the upstream reservoir;the anti-seepage effect of the inclined clay wall is good;and the anti-seepage effect of the joint section between the dam and the spillway gate is good.The permeability gradient of clay inclined wall and sand gravel in dam body can meet the standard requirements,and the seepage state of dam is generally safe.
clay inclined wallseepage monitoringfinite element seepage calculationosmotic potential
万方数据
维普
