Effect of Rainfall Infiltration on Loess Pitted Courtyard Cave Dwellings Stability

Abstract:

Baishe villagers have inhabited loess pitted courtyard cave dwelling for hundreds of years in Sanyuan County of China.The sizes of local cave dwellings are mastered by field measurements, and variational regularity is summarized of average annual and monthly rainfall. By the soil routine and triaxial test, the physical and mechanical parameter is acquired with loess samples in different water content.At the same time, based on the literature datas, the relationship is established between rainfall and water content. Then, the definition of safety factor is given for loess cave dwellings in different depths, making use of the expressions of the surrounding rock loop stress and the Mohr - Coulomb intensity criterion. In the end,the variation of stability of loess cave dwelling could be analysed under different rainfall.

• Periodical: Advanced Materials Research (Volumes 430-432)
• Pages: 1992-1995
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.430-432.1992
• Online since: January 2012
• Authors: Jia Ming Han, San Qing Su
• Keywords: Cave Dwelling, Loess, Rainfall, Stability

References

[1] LI Jing, LIU Zhi-hong and LI Rui: Temporal and Spatial Characteristics of Rainfall Erosivity with Different Geomorphology Types on the Loess Plateau. Bulletin of Soil and Water Conservation. (2008), pp.124-127.

[2] Yan Jiang-hong, ZHAO Yuan-zhong and ZHENG Yong: Study on the Relationship Between Runoff and Rainfall of City in Loess Plateau. JOURNAL OF WATER RESOURCES AND WATER ENGINEERING. ( 2009), pp.79-82.

[3] Xintian Xu, Zhiqian Ning, Jianling Tao and Damei Guo: Comprehensive analysis of summer regional large precipitation in Shaanxi . CLC. (2007), pp.10-15.

[4] Yafeng Li and Xuefeng Li: the experimental study of changement to the Precipitation Recharge with groundwater. (2007), pp.58-60.

[5] Baoxiong Li, Yonghong Niu, Tiande Miao. Malan loess in Lanzhou, the sensitivity characteristics of the water . Chinese Journal of Geotechnical Engineering. (2007), pp.294-298.

[6] Qinxuan Xu, Jingbo Zhao: Xi'an moisture content changes of the Loess. GEOSCIENCE. (2002), pp.435-438.

[7] Xiaoping Cao, Baoxiong Li. Characteristics of the water sensitivity of the Malan loess. Gansu Science andtechnology. (2004), pp.86-90.

[8] Zhongsen Liu, Yangping Yao: the finite element method of Loess slope stability analysis. Xi'an University of Architecture Technology. (2007).