Catastrophic Karstification of the Foundation Limestone in Cuiping Area, Wushan County, Three Gorges Reservoir Region

详细信息   

• 责任者：Zhang Jiagui (Institute of Geomechanics ; Chinese Academy of Geological Sciences ; Beijing 100081 ; China) ; Yin Yueping
• 刊名：Acta Geoscientica Sinica
• 出版年：2008
• 卷期：29(4)
• 关键词：岩溶作用 ; karstification ; 地质灾害 ; geologic hazards ; 长江三峡 ; Yangtze River Valley
• 页码：p.495-501
• 图表：5 illus., 11 refs.
• 分类号：1800
• issnNo：ISSN1006-3021
• isbnNo：CN11-3474/P

摘要

///Karstification recently discovered in the Three Gorges Reservoir region is a vital engineering geological problem. The reliable karst evidence was discovered early in Cuiping area, Wushan County, and the authors’ investigation has revealed that the limestone of Triassic Jialingjiang Formation in the area generally has suffered strong karstification. There are different features and intensities of karstification in different parts. Longitudinally, there exists intensifying tendency of karstification from the hill top to bottom, and from surface to the depth, there exists local strong karst layer. Many slope-parallel or layer-parallel caves near the surface and beehive-like dissolved holes in depth were generated by karstification in the area.