砂卵石土在动荷载作用下的动弹性模量研究

英文篇名：Laboratory experimental study on dynamic elastic modulus of sandy pebble soil subjected to dynamic loading
中文刊名：四川建筑科学研究
英文刊名：Sichuan Building Science
作者：张誉 ; 孙方 ; 贾彬 ; 王汝恒
英文作者：ZHANG Yu1 ; SUN Fang2 ; JIA Bin1 ; 3 ; WANG Ruheng1 ; 3 (1.Southwest University of Science and Technology ; Mianyang 621010 ; China ; 2.Sichuan Haichen Project Design & Research Company ; Mianyang 621000 ; China ; 3.Chongqing University ; Chongqing 430045 ; China)
中文关键词：砂卵石土 ; 动弹性模量 ; 动三轴试验
英文关键词：sandy pebble soil ; dynamic elastic modulus ; dynamic triaxial test
出版日期：2008-12-25
机构：西南科技大学土木工程与建筑学院;四川海辰工程设计研究有限公司;重庆大学土木工程学院;
年：2008
期：06
出版单位：四川建筑科学研究

摘要

通过砂卵石土室内动三轴试验,对饱和砂卵石土的动弹性模量动力参数进行了较为深入的研究。主要分析不同围压、不同固结比和不同振动频率对砂卵石土的动弹性模量影响的变化规律。试验结果表明,动应变影响动模量成倍增减,同时,动模量随着固结压力的增大而增大,固结应力比对动模量有着和固结压力一样的影响规律,而频率对饱和砂卵石土动弹模的影响较小。
Through laboratory tests on sandy pebble soil by using the dynamic triaxial test,studies of saturated sandy pebble soil has been done.The thesis analyzed the rule about the dynamic elastic modulus of sandy pebble soil under different confining pressure,solidify ratio and vibration frequency.The research makes clear that dynamic elastic modulus markedly rises with the augmentation of dynamic strain,and largens as the enhance of confining pressure or confining pressure ratio.In addition,result also shows that vibration frequency less affects dynamic elastic modulus.

引文

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