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1、-岩石的弹性模量E-第 4 页某些岩石的弹性模量E和泊松比的值(2010-09-28 22:46:34)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,一般为常数,但超越弹性范围以后,随应力的增大而增大,直到=0.5为止。岩石种类E(10的4次方MPa)闪长岩10.102111.75650.260.37细粒花岗岩8.12018.20650.240.29斜长花岗岩6.10877.39840.190.22斑状花岗岩5.49385.75370.130.23花岗闪长岩5.56055.83020.200.23石英砂岩5.31055.86850.120.14片麻花岗岩
2、5.08005.41640.160.18正长岩4.83875.31040.180.26片岩4.32987.01290.120.25玄武岩4.13669.62060.230.32安山岩3.84827.69650.210.32绢云母页岩3.3677-花岗岩2.98236.10870.170.36细砂岩2.79004.76220.150.52中砂岩2.57824.03080.100.22中灰岩2.40563.82960.180.35石英岩1.79466.93740.120.27板状页岩1.73192.1163-粗砂岩1.66424.03060.100.45片麻岩1.40435.51250.200.34页岩1.25034.11790.090.35大理岩0.9627.48270.060.35炭质砂岩0.54822.07810.080.25泥灰岩0.36580.73160.300.40石膏0.11570.76980.3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: