Paper Title:
Study on the Mechanism of the Landslide of Heda Expressway K377
  Abstract

During the construction of Heda expressway, the Ermi landslide, which occurred on section K377, has interrupted the construction of the expressway. Additional engineering geological investigation became necessary. The direct economic losses are over 3 million US dollars. This paper analyzed the Ermi landslide from the aspects of formation process, engineering geological conditions, the structural characteristics and stability analysis of the landslide. The results show that the formation of the Ermi landslide is mainly due to geological conditions in project area. Because the structure of the sliding body is loose and some weak interlayer exists in the slope, the shear strength of the sliding surface and sliding body is low. As cut-slope excavating, the resistant of the slope body reduced. Eventually the slope lost its stability and a landslide formed. In the stability analysis of the slope, the shear strength parameters of the sliding surface was determined by anti-analysis. Therefore, the result of the evaluation is closer to the actual conditions. Analyzing the stability of the three sliding surfaces respectively, the stability factors for initial slope are between 1.211 and 1.468, and the stability factors for current slope are between 0.958 and 1.076. Hence, the cut-slope excavation is the direct cause of the landslide.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
3437-3443
DOI
10.4028/www.scientific.net/AMR.255-260.3437
Citation
L. Nie, M. Zhang, H. Q. Jian, "Study on the Mechanism of the Landslide of Heda Expressway K377", Advanced Materials Research, Vols. 255-260, pp. 3437-3443, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Song Zhai, Zong Lin Wang, Yi Fu, Hai Yang Zhao
Chapter 3: Frontiers of Civil Engineering
Abstract:City roads are playing vital roles in the economic development. And both highway roadbeds take place geological disasters frequently. This...
1787
Authors: Peng Lv, Bao Yu Li, Yu Zhang, Yun Xun Zhang
Chapter 5: Solutions in Industrial Engineering, Technology and Management
Abstract:Through analyzing Dabaoliang geological characteristics, this paper discussed the factors of the mechanism of landslide in Dabaoliang area...
419
Authors: Kang Jian Shen, Yun Wei Meng
Chapter 8: Environmental Safety and Health, Disaster Prevention and Mitigation
Abstract:The formation of a loose engineering landslide is carried on, and the comprehensive analysis on the formation mechanism of landslide is...
452