Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《The Chinese Journal of Geological Hazard and Control》 2017-01
Add to Favorite Get Latest Update

Characteristics and risk analysis of debris flow in Tonge gully in Lantian county,Shaanxi province

MA Penghui;PENG Jianbing;ZHU Xinghua;TONG Xiao;ZHOU Yong;Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education;College of Geology Engineering and Geomatics,Chang'an University;The second group of Geology and Mineral Resources in Shanxi Province;  
Debris flow occurred frequently in Qinling mountain,because of the intense tectonic activity and the dangerous terrain.It rained heavily on August 3,2015,and a serious debris flow occurred in Tonge Gully in Lantian County,Xi'an City.We got the basic date of the debris flow by the detailed field investigation,then analyzed the characters of the debris flow.The results showed that 8.3 debris flow was a typical debris flow occurred by a variety of factors in northern Qinling mountain area.The flow rate of four cross sections was measured:6.07 m/s,5.87 m/s,5.24 m/s,4.92 m/s.According to the hydrology model in small basins,the peak flow and total outflow of debris flow were all calculated.It results that the total outflow of debris flow under 20-year rainfall condition would lead to a serious debris flow damage.Besides,by using multi-factor risk assessment,the risk of the 8.3 debris flow was analyzed.It finds that the Gully belongs to a moderate risk zone of the debris flow.Because of the intense tectonic activity,and more than 100 people lived here,monitoring should be prepared and people should move as quickly as possible.
【Fund】: 国家973计划资助项目(2014CB744702);; 国家自然科学基金项目(41402255)
【CateGory Index】: P642.23
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved