大型水电站高边坡塌方治理施工技术  

Construction Technology for High Slope Collapse Control of Large Hydropower Stations

作　　者：曾鸣 陈巍 古小梦 ZENG Ming;CHEN Wei;GU Xiaomeng(Sinohydro Bureau 5 Co.,LTD.,Chengdu Sichuan 610016;Huadian Jinsha River Upstream Hydropower Development Co.,LTD.,Chengdu Sichuan 610041)

机构地区：[1]中国水利水电第五工程局有限公司,四川成都610016 [2]华电金沙江上游水电开发有限公司,四川成都610041

出　　处：《四川水力发电》2024年第3期111-115,共5页Sichuan Hydropower

摘　　要：2020年5月12日,某水电站泄洪放空洞出口F46/F21断层引发了边坡坍塌现象,坍塌高度约40 m,坍塌方量约1.1万m^(3),严重制约泄洪放空洞出口2020年12月底导流目标实现。参建各方制订了坍塌边坡治理方案,采用了反压石渣、喷射钢纤维混凝土、“工字钢棚架+牛腿柱”复合支撑结构、钢锚墩临时支护、管棚等联合处理措施,在极其艰难的条件下快速、安全完成边坡治理,实现了某水电站2020年12月底按期导流目标。On May 12,2020,the F46/F21 fault at the exit of a flood discharge tunnel of a hydropower station caused slope collapse.The collapse height was about 40 m,and the collapse volume was about 11000 m^(3),which seriously restricted the realization of diversion target by the end of December 2020.All the parties involved in the construction have formulated the treatment plan of the collapse slope,adopted the combined treatment measures such as backpressure stone slag,sprayed steel fiber concrete,I-beam scaffolding and corbel column composite support structure,steel anchor pier temporary support,pipe shed and so on,and completed the slope treatment quickly and safely under extremely difficult conditions,and realized the target of diversion of Batang Hydropower Station by the end of December 2020.

关 键 词：反压石渣 钢棚架 钢锚墩 管棚 

分 类 号：TU943.4[建筑科学—建筑技术科学]