硅藻土滑坡稳定性分析及其时间预报  

Diatomite landslides stability analysis and time forecast

作　　者：高华喜[1] 殷坤龙[1] 周春梅[1] 

机构地区：[1]中国地质大学工程学院,湖北武汉430074

出　　处：《西北大学学报（自然科学版）》2007年第1期127-130,共4页Journal of Northwest University（Natural Science Edition）

基　　金：教育部博士点基金资助项目(20030491004);国家自然科学基金资助项目(40072084)

摘　　要：目的在分析硅藻土对斜坡不稳定性的特性指标的基础上,研究滑坡的形成机理,进而提出滑坡的防治措施。方法分析总结前人的滑坡体稳定性计算理论,建立适合于缓倾角混合岩土质滑坡计算模型,同时在模型中引进建筑荷载及降雨导致地下水位上升的动态参数。结果地下水位场的变化对滑坡体稳定性敏感较大,人工荷载的影响次之,利用建立的预报模型可以进行滑坡预报。结论建立的滑坡体稳定性评价模型与滑坡时间的预报判据,操作简便,结果与实际相吻合。Aim Based on some analyzed diatomite indexes of the slope instability to research the forming mechanism of landslide, and then present the controlling measures. Methods Based on the summary of the stability calculation theory of landslides, the calculation model of the rock and soil landslides was presented in the slow lay. The parameters of the loading and underground water table are introduced into the model at one time. Results The result is that the stability is sensitive to the underground water table, but not so important to mankind. The forecast model can be used. Conclusion It discusses the stability evaluation model and the forecast criterion, the forecast is efficient and scientific.

关 键 词：硅藻土 滑坡 建筑荷载 降雨 预报 

分 类 号：TD854.6[矿业工程—金属矿开采]