CALCULATION OF INTERNAL FORCES AND DEFLECTIONS OF SINGLE PILE IN THE GROUP PILE FOUNDATION OF TRANSMISSION LINES
ZOU Dan1，2，HE Huaijian1
(1. State Key Laboratory of Geomechanics and Geotechnical Engineering，Institute of Rock and Soil Mechanics，
Chinese Academy of Sciences，Wuhan，Hubei 430071，China；2. College of Civil Engineering，
Hunan University，Changsha，Hunan 410082，China)
Abstract：Through the force analysis of the group pile foundation，a vertical resistance coefficient of soil on the pile cap was proposed to calculate the uplift resistance and the stiffness coefficients of the pile top with the horizontal resistance were deduced based on the‘m’method. The deflection of the pile cap was calculated according to the force equilibrium equations and the internal forces and deflections of single piles were obtained with the deflection of the pile cap. Thus a method for calculating the single piles? internal forces and deflections of the group pile foundation was obtained. Finally，the single piles? internal forces and deflections of a group pile foundation with four piles were calculated under the uplift and compression conditions and the results were analyzed.
邹 丹1，2，贺怀建1 . 输电线路桩板基础基桩的内力与变位计算[J]. 岩石力学与工程学报, 2015, 34(03): 639-646.
ZOU Dan1，2，HE Huaijian1. CALCULATION OF INTERNAL FORCES AND DEFLECTIONS OF SINGLE PILE IN THE GROUP PILE FOUNDATION OF TRANSMISSION LINES. , 2015, 34(03): 639-646.
张忠亭. 架空输电线路设计原理[M]. 北京：中国电力出版社，2008：5-6.(ZHANG Zhongting. Design principles for overhead transmission lines[M]. Beijing：China Electric Power Press，2008：5-6.(in Chinese))
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2015, Vol. 34 
