Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Study on Karst Collapse Developing Regularity of the Yingde Section on the Wuhan-Guangzhou Passenger Special Line

TANG Wan-chun1,2,XU Mo1,YU He-yan3(1.State Key Laboratory of Geological Hazard and Engineering Geological Environment Protection,Chengdu University of technology,Chengdu,Sichuan 610059;2.China Railway Eryuan Engineering Group CO.LTD,Chengdu,Sichuan 610031;3.Sichuan Geology Engineering Group CO.LTD.,Chengdu,Sichuan 610051)  
About 45% of the section from Shaoguan to Huadu of the Wuhan-Guangzhou passenger special line has the basement made up of soluble rock.The karst along the line is well developed,mostly of the cover type.Thus this line highly requires embankment stability.By statistics and analysis on data of 1943 exploration drillings in the cover-type karst distribution area along the Yingde section,structural features of the karst are summarized.These rocks are concentrated at three layers in the subsurface with depths 0~30m,30~60m,and 60~110m,respectively,indicative of a layered property.Karst development is strictly controlled by soluble rock lithology,showing a very heterogeneous phenomenon in plane.On this basis,the further research concludes that the karst collapse is controlled by the bedrock lithology,and mainly developed in the area with cover thickness less than 15m,and groundwater level changes can provide karst collapses with a dynamic condition.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved