摘要
新疆下坂地水库的侧槽溢洪洞边坡表层位于基岩倾倒体中，边坡中卸荷裂隙发育，风化破碎，表层部分岩体松驰，裂隙张开，裂缝延伸较长。最长裂缝已延至F5断层，最大宽度80～100mm，在施工中采用常规的整体开挖或锚索加固措施进行支护不能满足设计要求。为此引进SYM压缩分散型锚索技术进行处理，较好地解决了侧槽边坡整体稳定问题。
The surface layer of the slope at the side channel discharge tunnel for Xiabandi Reservoir in Xinjiang is located in a toppling body of the foundation rock. Inside of the slope, unloading fissures are developed with weathered and broken rock mass. The part of the surface rock is loosen with opening fissures and longer fissure stretches. The longest fissure has stretched even to the fault of F5 with the max. width of 80 ~ 100 mm. The supporting for the conventional excavation or anchoring measures during the construction can not meet the design requirement. Therefore, the technology of SYM pre-stressed pressure-distribution anchoring is introduced into the construction, and then the integral stability of the slope of the side channel is better ensured.
出处
《水利水电技术》
CSCD
北大核心
2008年第9期67-70,共4页
Water Resources and Hydropower Engineering
关键词
下坂地水库
侧槽溢洪道
边坡稳定
SYM压缩分散型锚索
Xiabandi Reservoir
side channel discharge tunnel
slope stability
SYM pre-stressed pressure-distribution anchoring
