鄂西北山区边(滑)坡综合分类探讨

Probing of synthetical classification of slope/landslides in northwest mountain area of Hubei province

鄂西北山区是国内滑坡地质灾害多发地区,而且目前在鄂西北山区的交通、水电、能源、资源等基础设施建设的力度很大,由此造成及将来可能诱发大量的工程开挖型和水库蓄水型滑坡。因此,尽快建立该地区边(滑)坡的综合分类体系是进一步研究该地区边(滑)坡的发育规律、破坏模式、成灾机制、时空预测及相应防治对策等的基础性工作,为今后深入研究该地区边(滑)坡问题提供基础性成果资料。文中讨论了建立该地区边(滑)坡综合分类体系的基本原则,明确了构建该地区边(滑)坡综合分类体系的3个最主要的特征;提出了该地区边(滑)坡多层次综合分类体系框图;对该地区边(滑)坡主要典型类别划分进行了深入的分析探讨,初步划分出19类典型边坡。并列举了几个典型类别边(滑)坡的工程实例,初步分析了其变形破坏模式和机制,提出了相应的分析计算方法和处治对策建议。

Northwest mountain area of Hubei province is landslide-prone area in China.By transportation,utilities,energy,resources and other infrastructure construction greatly being underway,a large number of excavation-type and reservoir storage-type landslide may be triggered in future.The swift establishment of a synthetical classification system for the regional slope/landslide is the basic work for further researching the regional slope/landslide of the development of the law of distribution,deformation failure mechanism,space-time forecasts and the corresponding treatment policy.The synthetical classification system can also provide basic achievement data for future in-depth study of the region slope/landslide problem.This article first discusses the establishment of the regional slope/landslide of the basic principles of a synthetical classification system and clear the three most important characteristics of building the regional slope/landslide system.After that,this article presents multilevel block diagram of the synthetical classification system.After in-depth analysis of the typical slope major categories of the synthetical classification system,this article preliminary classifies 19 typical slopes.Some typical engineering examples are listed.The deformation,failure pattern and mechanism of those kinds of slopes/landslides in this region is preliminary analyzed.Some suggestions for analytical method and countermeasures of those kinds of slopes/landslides are put forward.