Controlling factors of loess landslides in western China

Springer Science and Business Media LLC - Tập 59 - Trang 1671-1680 - 2009
M. Zhang1,2, Jie Liu1
1Center for Water Research, College of Engineering, Peking University, Beijing, China
2Xi’an Regional Center, China Geological Survey, Xi’an, China

Tóm tắt

Based on detailed field data from recent geo-hazards surveys in the Loess Plateau region of western China, this study analyzes the key factors that control loess landslides. The evolution phase of river valleys, the geological structure of slopes and the geometry of slopes are all found to play a role in determining the occurrence, distribution and other characteristics of loess landslides. Groundwater and vegetation also contribute to their formation. A combination of human engineering activities and precipitation events are the principal triggering factors for the instability of loess slopes.

Tài liệu tham khảo

Duan Y et al (1993) Geo-hazards in China (1st version). China Construction Industry Press, Beijing

Hydrogeological Team No. 2 (2000) Shaanxi Geological Bureau. Regional Environmental Geological Survey Report of Shaanxi Province

Hydrogeological Team 908 (2000) Shaanxi Geological Bureau. Landslides Survey Report of Baota Mountain, Yan’an City, Shaanxi Province

Lei X (2001) Human activities and geo-hazards on the Loess Plateau. Geological Press, Beijing

Liu D (1985) Loess and environment. Scientific Press, Beijing

Peng J (1997) Study of the stability of engineering field. Xi’an Cartographic Press, Xi’an

Sun J (2005) Loess sciences (1st version). Hong Kong Archaeology Association, Hong Kong

Wang J (1992) Mechanism of high speed loess landslides—saturated loess creeping liquefaction. Geol Rev 38(6):532–539

Wang S, Dai F (1997) Evaluation and prediction of engineering geoenvironment and countermeasures to coordinate human engineering activities. J Geol Hazards Environ Preserv 8(1):31–35

Yin Y (1996) Prediction and mapping of geo-hazards trend in China. Quat Study (2): 123–130

Zhang Z (1994) Typical human engineering activities and the impact on geological environment. Southwest Transportation University Press, Chengdu

Zheng Y (2002) Finite element strength reduction method and its application on soil and rock slope. Collected paper of Rock Mechanics and Engineering Society