宝鸡峡渠首加坝加闸工程Ⅲ坝段岩基L0缓倾角裂隙处理

Treatment of L_0 cranny with little obliquity in the rock foundation of No.III dam section of the augment of flow gates at the headwork of Baojixia Project

宝鸡峡渠首加坝加闸工程Ⅲ坝段基岩存在L0缓倾角裂隙，针对其特点，提出两种处理方法；根据工程进度计划、工程投资经济性、和工程质量的要求进行技术经济分析，采用大开挖的处理方法。

There exists a L0 cranny with little obliquity in the rock foundation of No.III dam section of the augment of flow gates at the headwork of Baojixia Project. Two treatment methods are put forward according to the characteristics of the cranny. It is sugested based on technological and economical analysis that large scale excavation be employed for the treatment in order to meet the need of project schedule, economics of project investment and the quality control of construction.