天生桥二级水电站下山包滑坡稳定分析及工程治理

Stability Analysis and Project Management of Xiashanbao Slide of Tianshengqiao Ⅱ Hydropower Station

天生桥二级水电站下山包滑坡，原为一古滑坡，因厂房边坡开挖爆破及施工生活用水下渗等因素的影响，导致了古滑坡的复活．为了制止滑坡的活动，保证厂房施工期和运行期的安全，在利用多种方法对滑坡进行稳定分析的基础上，采取了多种工程治理手段，包括：滑坡减载、打钢筋桩、设预应力锚杆、打抗清桩、设预应力锚索、地下排水洞及孔幕、地表排水沟，以及像面喷锚和钢筋混凝土框架护坡等，经过7年多的严密监测证明，滑坡工程治理是成功的．

The Xiashanbao slide is an ancient one with a volume of 1400000 m3 which revives as a result of evcavation explosion of the power house slope and seepage of construction and domestic water. In order to prevent the slide from moving and ensure the safety of construction period,the stability analysis is made by various methods and the project management by various measures. Through the close monitoring of over 7 years, the project managemeat has proved to be successful.