三峡库区巴东黄土坡巨型古滑坡体稳态预测预报  

Prediction of stability of Badong Huangtupo giant ancient landslide in Three Gorges Reservoir area

作　　者：武雄[1] 段庆伟[2] 孙燕冬[1] 何满潮[3] 崔政权 

机构地区：[1]中国地质大学水资源与环境工程北京市重点实验室,北京100083 [2]中国水利水电科学研究院,北京100044 [3]中国矿业大学(北京),北京100083 [4]长江水利委员会,湖北武汉430010

出　　处：《武汉大学学报（工学版）》2008年第5期67-71,共5页Engineering Journal of Wuhan University

基　　金：国家自然科学基金(编号:40602036);国家杰出青年基金(编号:59825114)

摘　　要：三峡库区发育的大量巨型古滑坡体由于特殊的地质条件往往成为移民新城址,采用近代力学和现代工程地质学有机结合的研究方法,在对其进行整体稳定性评价的基础上,通过对变形裂隙的力学性质、出露部位、扩展趋势以及出露次序的研究提出了巨型古滑坡体可能的复活模式及其时空预测预报原理.以巴东县城新址之一的黄土坡巨型古滑坡体为例,研究认为,在停止工程建设的前提下,该古滑坡体在无地震发生和采取有效坡体排水措施的情况下整体是稳定的,但在一些因素扰动情况下,黄土坡巨型古滑坡体已发育有5个"关键部位",其中II、III、V和V号"关键部位"处于孕育阶段,II号"关键部位"处于形成阶段,这些"关键部位"在采取有效坡体排水措施和及时加固情况下复活的可能性较小,黄土坡作为巴东新城址之一,安全是有保证的.A lot of giant ancient landslides developed in the Three Gorges Reservoir area sometimes become the locations of the new cities of immigrants as a result of specific geological conditions. A research method combining recent mechanics with modern engineering geology is used. Based on evaluation of whole stability, possible revived mode of giant ancient landslides and the theory of space time forecast for the landslides is presented by researching mechanical property of deformation faults, exposed location, extended trend and exposed sequence. Taking the Huangtupo giant ancient landslide for example, which is one of new locations of Badong County seat, the research suggests that on the premise of stop ping engineering construction this landslide is stable under these circumstances of having no earthquake and adopting effective measure for drainage of slope body. But under the circumstance of some disturbing factors, Huangtupo giant ancient landslide has developed five ＂key places＂, of which Ⅰ, Ⅲ, Ⅳ and Ⅴ are in the incubation stage and Ⅱ is in the formation stage. Revived probability of these places is less under these circumstances of adopting effective measures for drainage of slope body and reinforcement in time. Safety of Huangtupo which is one of new locations of Badong County is ensured.

关 键 词：三峡库区 巴东黄土坡 巨型古滑坡体 稳态预测预报 

分 类 号：TU45[建筑科学—岩土工程]