湖北省三峡库区秭归县头道河Ⅱ号滑坡特征及稳定性评价

针对湖北省三峡库区秭归县头道河Ⅱ号滑坡现状条件下的明显变形迹象,本文对该滑坡进行了综合的分析和研究,详细介绍了该滑坡的地质背景及滑坡特征。采用剩余推理法,对滑坡体在各种不同工况下的稳定性作了科学分析,并对滑坡体在三峡水库蓄水以后的稳定性作了合理评价。结果表明,滑坡体在目前状态下基本稳定,三峡水库蓄水以后,将对滑坡体稳定性产生较大影响,极有可能导致滑坡体失稳,据此结合工程实际提出了一些可行的防治措施及建议。

Characteristics and stability evaluation of No.2 landslide at Toudaohe of Zigui County in the Three-Gorges Reservoir region,Hubei Province

The present paper discussed deformation and displacement of the No.2 landslide at Toudaohe of Zigui County in the Three-Gorges Reservoir region,Hubei Province, and introduced geological background and characteristics of this landsides in detail.A remainder theorem method was used to study the stability of the landslide in diverse engineering cases.Moreover,the stability of the landslide after impounding of the Three-Gorge Reservoir was evaluated.The study indicated that the landslide was steady at the present state,but the impounding of the Three-Gorge Reservoir will obviously a influence the landslide,causing the landslide to lost its stability.According to the calculated results,some possible countermeasures and recommendations were advised in combination of engineering reality.