土工织物在广州抽水蓄能电站边坡中的应用

Application of geotextile to slope engineering of Guangzhou Pumped Slorage Power Station

广州抽水蓄能电站(下称广蓄电站)进出水口边坡高,水位变动大,骤降变幅大。经试验选用用规格为500gm2的的纯涤纶无纺土工织布和规格为100gm2的聚丙烯防滑编织布,组成护坡的土工织物反滤层,护坡面板采用现浇20cm厚的混凝土,并采取了一些加固措施。电站从1993年投产至今已安全运行8年多,实践表明,土工织物在广州抽水蓄能电站上、库进、出水口边坡中的应用是成功的。

The water levels of the upper and lower reservoirs of Guangzhou Pumped Storage Power Station vary frequently by an abrupt peak-regulation property;and the reservoirs have high slopes at the intake outlet of the diversion tunnel.Through testing,the pure polyster geotextile(500g m 2 ,no spinning and weaving)and the polymeric geotextile(100g m 2 ,skid-proof )are selected to serve as the filter blanket for slope protection.The in-situ casting20cm thick concrete instead of conventional pre-cast blocks has been used to cover the slope surface and relevant reinforcing measures have been introduced.The Power Station has been operated safely for 8years since March of 1993.The practice has verified that the geotextile has been successfully applied to the slope engineering around the intake outlet of the diversion tunnel of Guangzhou Pumped Storage Power Station.