Experimental Study on the Process of Geomorphic Evolution of Debris Flow on Slope

Abstract:

To reveal the process of geomorphic evolution of debris flow on slope, the qualitative-semi-quantitative model experiment was built from experimental model, characteristics of soil and rainfall scheme. The results indicate that the essence of geomorphic evolution of debris flow on slope is the interaction of soil and water. And the change of geomorphology is reflected by the elevation of topsoil. In antecedent rainfall, the elevation of topsoil is in increasing trend generally except some parts. During short heavy rainfall, the soil creeps intensively, mixes with water and becomes fluidization gradually. The elevation of topsoil on the top is decreasing generally, while on the button, the elevation is increasing. Moreover, because water infiltrates into slope and interacts with soil needing a period of time, the change of geomorphology falls behind the rainfall process.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 39-44
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.39
• Online since: March 2013
• Authors: Hong Mei Tang, Guang Ju Wen, Lin Feng Wang, Hong Kai Chen
• Keywords: Debris Flow on Slope, Geomorphic Evolution, Model Experiment, Rainfall

References

[1] Yanfu Li, Zhaoyin Wang, Wenjing Shi and Xuzhao Wang: Journal of Mountain Science, Vol. 7(2010), p.226. (in Chinese).

[2] L. Olivares, E Damiano: Journal of Geotechnical and Geoenvironmental Engineering, Vol. 133(2007), p.51.

[3] Thomas K. Collins: Landslides, Vol. 5(2008), p.107.

[4] G. Klubertanz, L Laloui, L Vulliet: Engineering Geology, Vol. 109(2009), p.114.

[5] Yongshuang Zhang, Yongxin Qu, Feng He, Shuren Wu, Zhenxi Yan, Weimin Yang and Jusong Shi : Hydrogeology and Engineering Geology, Vol. 32(2005), p.84. (in Chinese).

[6] Wanshun Zhang, Fei Qiao, Peng Cui, Hong Peng and Xiaoqing Chen: Resarch of Soil and Water Conseravtion, Vol. 12(2006), p.146. (in Chinese).

[7] Weimin Yang, Shuren Wu, Yongshuang Zhang, Jusong Shi and Lingzhi Xiang: Earth Science Frontiers, Vol. 14(2007), p.197. (in Chinese).

[8] Hongkai Chen, Xuefu Xian, Hongmei Tang, Quancai Wang and Yuping Zhang: Journal of Hunan University, Vol. 35(2008), p.130. (in Chinese).

[9] L. Picarelli, L. Olivares, B. Avolio: Engineering Geology, Vol. 102(2008), p.132.

[10] Mengzhen Xu, Zhaoyin Wang, Lijian Qi, Le Liu and Kang Zhang: Environment Earth Science, Vol. 3(2011), p.905.

[11] Chenglin Yang, Ningsheng Chen, Zhanlu Li: Journal of Natural Disasters, Vol. 20(2011), p.31. (in Chinese).

[12] Guisheng Hu, Ningsheng Chen, Chengning Yang: Journal of Chongqing Jiaotong University, Vol. 30(2011), p.95. (in Chinese).