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抗滑桩内力计算“K”法的改进与应用
引用本文:戴自航,彭振斌.抗滑桩内力计算“K”法的改进与应用[J].地质与勘探,2002,38(3):79-83.
作者姓名:戴自航  彭振斌
作者单位:1. 湖南大学土木工程学院,长沙,410082
2. 中南大学资源环境与建筑工程学院,长沙,410083
基金项目:国家教育部博士点基金资助项目(9453305).
摘    要:对传统的抗滑桩内力计算“K”法作了一些改进,如建立了滑动面上下统一的坐标系,将桩视为一个整体进行考虑,通过合理的假定,保证了桩身在滑动面处内力和位移的连续性,同时,采用名的MATLAB数学软件设计了“K”法的计算程序,适用于滑坡推力和桩前滑体抗力分布的各种形式以及抗滑桩为刚性桩和弹性桩的情况,实例计算结果表明,较之传统的查表法,该方法有效地提高了抗滑桩内力和位移计算速度和精度,同时可得到理想的可视化计算结果,有助于抗滑桩结构的优化设计。

关 键 词:抗滑桩  内力  “K”法  MATLAB  刚性桩  弹性桩  可视化
文章编号:0495-5331(2002)03-0079-05
修稿时间:2001年4月9日

IMPROVEMENTS AND APPLICATIONS IN "K" METHOD OF INTERMAL FORCES CALCULATION OF STABILIZING PILES
DAI Zi - hang,PENG Zhen - bin. College of Civil Engineering,Hunan University,Changsha l,. College of Resources,Environment and Civil Engineering,Central South University,Changsha l.IMPROVEMENTS AND APPLICATIONS IN "K" METHOD OF INTERMAL FORCES CALCULATION OF STABILIZING PILES[J].Geology and Prospecting,2002,38(3):79-83.
Authors:DAI Zi - hang  PENG Zhen - bin College of Civil Engineering  Hunan University  Changsha l  College of Resources  Environment and Civil Engineering  Central South University  Changsha l
Institution:DAI Zi - hang1,PENG Zhen - bin21. College of Civil Engineering,Hunan University,Changsha 4l0082,2. College of Resources,Environment and Civil Engineering,Central South University,Changsha 4l0083
Abstract:Some improvements are made on the traditional "K" method about intemal force analysis of the stabi1izing pile against 1ands1ide. For ex-amples, a universal coordinate including above and below sliding surfaces is established. The pile is considered as a whole body. The continuity of inter-nal forces and displacement is assured through reasonable supposition. Meanwhile, the well - known mathemaic software MATLAB is used to design aprogram of "K" method. The program can be applied to all sorts of distributions of lateral force and soil reaction as well as rigid or elasic stabilizing piles.Compared with the traditional method, a calculated case shows that this method can effectively improve calculation speed and precision of internal forcesof stabilizing piles. Reasonab1e visual resu1ts of calcu1ation can be obtained. The visual figures are helpful to optimize the structural design of stabilizingpiles.
Keywords:stabilizing pile  internal force  the" K" method  MATALAB  rigid pile  elastic pile  visual
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