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颗粒破碎对粗粒料力学特性的影响研究
引用本文:申存科,迟世春,贾宇峰.颗粒破碎对粗粒料力学特性的影响研究[J].水利与建筑工程学报,2009,7(2).
作者姓名:申存科  迟世春  贾宇峰
作者单位:1. 大连理工大学,海岸与近海工程国家重点实验室,辽宁,大连,116024;浙江省水利水电勘测设计院,浙江,杭州,310002
2. 大连理工大学,海岸与近海工程国家重点实验室,辽宁,大连,116024
摘    要:易破碎是粗粒料显著的特点,颗粒破碎对粗粒料的抗剪强度、内摩擦角、剪胀以及渗透系数均会产生影响。通过室内大型三轴试验,对粗粒料的颗粒破碎以及应力进行了分析,建立了破碎耗能与塑性功之间的关系式,并将其引入土体受力变形过程中的能量方程,采用相关联流动法则推导出了粗粒土的屈服函数,并绘制出在不同围压下经颗粒破碎修正的屈服面。

关 键 词:粗粒料  颗粒破碎  塑性功  屈服函数

Research on Influence of Particle Breakage on Mechanical Characteristics of Coarse Granular Materials
SHEN Cun-ke,CHI Shi-chun,JIA Yu-feng.Research on Influence of Particle Breakage on Mechanical Characteristics of Coarse Granular Materials[J].Journal of Water Resources Architectural Engineering,2009,7(2).
Authors:SHEN Cun-ke  CHI Shi-chun  JIA Yu-feng
Affiliation:1.State Key Laboratory of Coastal and Offshore Engineering;Dalian University of Technology;Dalian;Liaoning 116024;China;2.Zhejiang Investigation and Design Institute of Water Conservancy and Hydropower;Hangzhou;Zhejiang 310002;China
Abstract:Particle breakage is an evident characteristic of coarse granular materials,which will affect the shear strength,internal friction angle,shear dilatancy and permeability coefficient.The particle breakage and the stress of coarse aggregates are analyzed based on large-scale triaxial tests.The energy equation during shearing is developed incorporating the relationship between the energy consumption due to particle crushing and the plastic work.And then,the yield function is obtained through adopting the assoc...
Keywords:coarse granular materiasls  particle breakage  plastic work  yield function  
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