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微型桩体系加固顺层岩质边坡的内力计算模式
引用本文:冯君,周德培,江南,杨涛. 微型桩体系加固顺层岩质边坡的内力计算模式[J]. 岩石力学与工程学报, 2006, 25(2): 284-288
作者姓名:冯君  周德培  江南  杨涛
作者单位:西南交通大学,土木工程学院,四川,成都,610031
摘    要:根据微型桩的结构布置形式,将加固顺层岩质边坡的微型桩体系分为3种类型,即独立微型桩体系、平面桁架微型桩体系和空间桁架微型桩体系。将微型桩体系和桩间岩土体视为桩-岩土体的复合型结构,提出了桩-岩土体-桩的相互作用模式和作刚力计算分析模型,该模型考虑桩-岩土体-桩的相互作用,可较好模拟滑坡推力在各排桩之间的传递机制。最后,应用有限元理论建立计算微型桩体系内力和变形的力学模型,并将该模型应用于渝怀铁路顺层岩质边坡加固计算中,取得了良好的效果。

关 键 词:岩石力学  微型桩体系  顺层岩质边坡  桩-岩土体复合型结构  力学模型
文章编号:1000-6915(2006)02-0284-05
收稿时间:2005-08-22
修稿时间:2005-08-222005-09-30

A MODEL FOR CALCULATION OF INTERNAL FORCE OF MICROPILE SYSTEM TO REINFORCE BEDDING ROCK SLOPE
FENG Jun,ZHOU De-pei,JIANG Nan,YANG Tao. A MODEL FOR CALCULATION OF INTERNAL FORCE OF MICROPILE SYSTEM TO REINFORCE BEDDING ROCK SLOPE[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(2): 284-288
Authors:FENG Jun  ZHOU De-pei  JIANG Nan  YANG Tao
Affiliation:School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
Abstract:According to the arrangement of micropiles,the micropile system used to reinforce bedding rock slope can be classified into three types:independent micropiles system,planar truss micropile system and spatial truss micropile system.On the basis of combining the mircropiles and the rock mass among the micropiles as a whole structure,a new analytical model of micropile system is proposed.The interaction between the micropiles and rock mass can be simulated with this model.The mathematical and mechanical model for the internal force and deformation of the micropile system is established by finite element method.
Keywords:rock mechanics   microple system   bedding rock slope   composite structure of piles and rock mass  mechanical model
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