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1、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:分类:professional岩石/土弹模泊松比杂谈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。岩石种类闪长岩细粒花岗岩斜长花岗岩斑状花岗岩花岗闪长岩石英砂岩片麻花岗岩正长岩片岩玄武岩安山岩绢云母页岩花岗岩E(10的4次方MPa)10.102111.7565 0.260.378.12018.20656.10877.39845.49385.75375.56055.83025.31055.86855.08005.41644.83875.31044.32987.
2、01294.13669.62063.84827.69653.36772.98236.10870.240.290.190.220.130.230.200.230.120.140.160.180.180.260.120.250.230.320.210.32-0.170.36细砂岩中砂岩中灰岩石英岩板状页岩粗砂岩片麻岩页岩大理岩炭质砂岩泥灰岩石膏2.79004.76222.57824.03082.40563.82961.79466.93741.73192.11631.66424.03061.40435.51251.25034.11790.9627.48270.54822.07810.36580.73160.11570.76980.150.520.100.220.180.350.120.27-0.100.450.200.340.090.350.060.350.080.250.300.400.3土的泊松比土的种类和状态碎石土砂土粉土泊松比0.15-0.200.20-0.250.25坚硬状态粉质粘土可塑状态0.250.3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: