糯扎渡水电站引水发电系统布置及支护设计

糯扎渡水电站引水发电系统布置于工程枢纽区左岸，采用地下厂房形式，充分利用左岸的地质地形条件，使枢纽布置从进口到尾水出口都较为平顺，主要洞室也很好地避开了F1、F3大断层。通过对三大洞室的围岩稳定进行分析计算，类比其他工程，确定了合理的支护参数，可确保洞室安全。

Layout and supporting design of water diversion and power generation of Nuozhadu Hydropower Station

The water diversion and power generation system of the Nuozhadu Hydropower Station is arranged in the left bank of the control works of the Project and the underground powerhouse is adopted in order to make full use of the geological and topographical conditions of the left bank to make it smooth the layout from the intake to the outlet and to make the main underground champers avoid the great faults F1 and F3. By analyzing and calculating the stability of surrounding rocks of the three tunnel chambers and comparing with the other similar projects, the proper supporting parameters are established to ensure the tunnel chambers safely.