Improved plane layout of stabilizing piles based on the piecewise function expression of the irregular driving force
The paper presents an improved plane layout for stabilizing piles based on a proposed piecewise function expression for the irregular driving force. Based on the specific morphological characteristics of a highway landslide, the piecewise function is used to calculate the irregular driving force by dividing the landslide into several sub-areas. Furthermore, the reasonable layout range and pile spacing can be obtained based on the piecewise function expression of the irregular driving force and on relevant research results of the plane layout for stabilizing piles. Therefore, an improved plane layout of stabilizing piles is presented in consideration of a piecewise function expression of the irregular driving force. A highway landslide located in eastern Guizhou Province, China, is analyzed as a case study using the proposed method. The results demonstrate that the theory presented in this paper provides improved economic benefits and can reduce the required number of stabilizing piles by 28.6% compared with the conventional plane layout scheme.
KeywordsHighway landslide Driving force Piecewise function Stabilizing pile Plane layout
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This research is supported by the National Key R&D Program of China (2017YFC1501304),the National Natural Science Fund of China (No. 41472261), the Key Technical Project of Shenzhen Science and Technology Project (No. JSGG20160331154546471) and the Open Fund of State Key Laboratory of Geohazard Prevention and Geoenviroment Protection (Grant No. SKLGP2017K017).
- Dai ZH (2002) Study on distribution laws of landslide-thrust and resistance of sliding mass acting on antislide piles. Chinese Journal of Rock Mechanics & Engineering (In Chinese)Google Scholar
- Fan F (2012) Numerical simulation on soil arch effect of antislide piles in accumulation landslide. China University of Geosciences (Wuhan) (In Chinese)Google Scholar
- Li C, Tang H, Hu X, et al. (2009) Research on scale effect law during spatial prediction evaluation of regional slope. Journal of Wuhan University of Technology 31 (5): 56–60. (In Chinese)Google Scholar
- Li C, Tang H, Hu X, at al. (2010) Improved maximum pile interval model of anti-slide pile based on soil arching effect. Geological Science and Technology Information 29 (05): 121–124. (In Chinese)Google Scholar
- Li C, Yan J, Wu J (2017b) Determination of the embedded length of stabilizing piles in colluvial landslides with upper hard and lower weak bedrock based on the deformation control principle. Bulletin of Engineering Geology & the Environment(8): 1–20. https://doi.org/10.1007/s10064-017-1123-3Google Scholar
- Ministry of Land and Resources of the People's Republic of China (2006) Specification of Design and Construction for Landslide Stabilization (DZ/T0219-2006). China Standards Press. (In Chinese)Google Scholar
- Ministry of Transport of the People's Republic of China (2015) Specifications for Design of Highway Subgrades. China Communications Press. (In Chinese)Google Scholar
- Wang C, Chen Y, Lin L (2001) Soil arch mechanical character and suitable space between one another anti-sliding pile. Journal of Mountain science 19 (06): 556–559. https://doi.org/10.16089/j.cnki.1008-2786.2001.06.013Google Scholar
- Xiao S, Zeng J, Yan Y (2016) A rational layout of double-row stabilizing piles for large-scale landslide control. Bulletin of Engineering Geology & the Environment 76 (1): 1–13. https://doi.org/10.1007/s10064-016-0852-zGoogle Scholar
- Xu, LD, Yin, DC, Liu, HM (1990) The resistance distribution in the slide mass of clayey soil in front of anti-sliding pile. Proceedings of Landslides. vol. 6. China Railway Publishing House, Beijing, pp. 92–99. (In Chinese)Google Scholar
- Zhang L, Song L, Hu J, et al. (2008) An improvement on sweden method of slices. Soil Engineering & Foundation 22 (2): 47–49 (In Chinese)Google Scholar