(四)二滩高坝坝肩复杂岩体的处理研究拟建的二滩水电站位于金沙江支流雅砻江下游,装机容量设计为300～350万千瓦。二滩坝高245米,为全国首屈一指。厂房设在地下。坝址位于川滇南北向构造带中段西侧的共和断块上。该断块四周为雅砻江断裂带等一系列活动构造带所包围,断块本身地震活动较弱,坝区处于这相对稳定的“安全 (D) Ertan dam dam shoulder complex rock processing study The proposed Ertan Hydropower Station is located in the lower reaches of Yalong River tributary of the Jinsha River, the installed capacity of 300 ~ 3.5 million kilowatts. Ertanba dam 245 meters high, second to none in the country. Plant located in the ground. The dam site is located on the Republican fault block to the west of the middle section of the north-south Sichuan-Yunnan tectonic belt. Surrounded by a series of active tectonic belts such as the Yalong River fault zone, the fault block itself has weak seismic activity, and the dam area is in this relatively stable "safe