Engineering geological conditions and evaluation of the upper reservoir of a pumped storage pow-er station in Qinghai
In recent years,a large number of pumped storage power stations have been built in China,and the reservoir engineering geological conditions determine the feasibility of the construction.Through on-site geological surveys and tests,the leakage and bank slope stability of the proposed upper reservoir are evaluated.Research has shown that the project is located in an area with prominent leakage prob-lems.It is recommended to deal with the problems of dam foundation leakage and seepage around dam during the anti-seepage of upper reservoir basin.The engineering slope is generally stable.For the bro-ken rock body affected by faults,as well as disadvantage blocks formed by the cutting and combination of faults,interlayer joints and dominant joints,the effective support measures should be taken in time ac-cording to the excavation exposing situation.
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