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某些岩石的弹性模量E和泊松比μ的值(2010-09-2822:46:34)转载标签:岩石/土弹模泊松比杂谈分类:professional在岩石的弹性工作范围内,μ一般为常数,但超越弹性范围以后,μ随应力的增大而增大,直到μ=0.5为止。岩石种类E(10的4次方MPa)μ闪长岩10.1021~11.75650.26~0.37细粒花岗岩8.1201~8.20650.24~0.29斜长花岗岩6.1087~7.39840.19~0.22斑状花岗岩5.4938~5.75370.13~0.23花岗闪长岩5.5605~5.83020.20~0.23石英砂岩5.3105~5.86850.12~0.14片麻花岗岩5.0800~5.41640.16~0.18正长岩4.8387~5.31040.18~0.26片岩4.3298~7.01290.12~0.25玄武岩4.1366~9.62060.23~0.32安山岩3.8482~7.69650.21~0.32绢云母页岩3.3677--花岗岩2.9823~6.10870.17~0.36细砂岩2.7900~4.76220.15~0.52中砂岩2.5782~4.03080.10~0.22中灰岩2.4056~3.82960.18~0.35石英岩1.7946~6.93740.12~0.27板状页岩1.7319~2.1163--粗砂岩1.6642~4.03060.10~0.45片麻岩1.4043~5.51250.20~0.34页岩1.2503~4.11790.09~0.35大理岩0.962~7.48270.06~0.35炭质砂岩0.5482~2.07810.08~0.25泥灰岩0.3658~0.73160.30~0.40石膏0.1157~0.76980.3土的泊松比土的种类和状态泊松比碎石土0.15-0.20砂土0.20-0.25粉土0.25粉质粘土坚硬状态0.25可塑状态0.3软塑或流动0.35粘土坚硬状态0.25可塑状态0.35软塑或流动0.42但是应该注意,土的泊松是很难精确得到的,以上只是近似值。《地基与基础》(顾晓鲁等主编,中国建工,1993,第二版)142面:
本文标题:岩石的弹性模量E
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