Vol15 No.4: 871-881
【Title】Improved plane layout of stabilizing piles based on the piecewise function expression of the irregular driving force
【Author】LIU Wen-qiang1; LI Qun2; LU Jian1; LI Chang-dong1*; YAO Wen-min1; ZENG Jiang-bo3
【Addresses】1 Faculty of Engineering, China University of Geosciences, Wuhan 430074, China; 2 CCCC Second Highway Consultants Co., Ltd., Wuhan 430050, China; 3 Shenzhen Geotechnical Investigation & Surveying Institute Co., Ltd., Shenzhen 518028,China
【Corresponding author】LI Chang-dong
【Citation】Liu WQ, Li Q, Lu J, et al. (2018) Improved plane layout of stabilizing piles based on the piecewise function expression of the irregular driving force. Journal of Mountain Science 15(4). https://doi.org/10.1007/s11629-017-4671-x
【Abstract】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.
【Keywords】Highway landslide; Driving force; Piecewise function; Stabilizing pile; Plane layout