三峡库区师专-群沱子滑坡防治设计与施工

Design and construction of Shizhuan-Quntuozi landslide mitigation project in reservoir area of TGP

师专-群沱子滑坡是三峡库区影响较大的滑坡之一,防治工程设计经过多次审查和评估,采用分期工程治理方案实施。一期防治工程主要采用抗滑桩支挡、地表排水等工程措施。对工程实施过程中发生的重大险情,采取了有效措施,避免了灾害发生,并经受了水库试验性蓄水考验。总结了一期工程的勘察、设计成果和施工期险情的排除方案,指出了滑坡防治工程设计与施工中应把握的关键问题,在此基础上提出了下阶段的治理方案。

The Shizhuan-Quntuozi landslide is one of the most important massive landslides in the reservoir area of TGP.After many checkups and evaluations,staged mitigation scheme was carried into execution.The engineering measures such as slide-resistant piles,surface water drainage systems and so on were employed in the first phase project.Effective measures were taken when dangerous situation happened during construction.The first phase project was proved effective to keep the landslide stable after impounding and discharging of the reservoir.We review the geotechnical investigation and design results along with the measures for eliminating risks of sliding in the first phase project,point out key issues that should be mastered and propose some revelation and suggestions in the design and construction of landslide mitigation project.