岩石力学参数

《岩石力学参数》由会员分享，可在线阅读，更多相关《岩石力学参数（7页珍藏版）》请在装配图网上搜索。

1、水泥密度g/cm33.10普通混凝土密度g/cm32.60轻骨料混凝土密度g/cm32.60石灰岩容重kg/m310002600花岗岩容重kg/m325002700（石灰岩）碎石容重kg/m314001700砂容重kg/m314501650粘土容重kg/m316001800普通粘土砖容重kg/m316001800粘土空心砖容重kg/m310001400水泥容重kg/m312001300普通混凝土容重kg/m321002600轻骨料混凝土容重kg/m38001900表1煤岩层前力学性质表Table1Mtchanicalpn）perticsofcoalandrock岩恳加心ShisZ/GPaiMP

2、u曲Y：）pfkNmJE板152.41.23.101.00322.02400煤10.02.26.151.00301.51300直接隕152.41.23.101.00322.02400老血155.33.28.001.56355.0Z!500岩石名称容重d（kg。m-3）弹性模量/MPa泊松比内聚力/MPa摩擦角/抗拉强度/MPa顶板粉砂岩24601.95e40.22.75381.84泥岩24610.875e40.261.2300.605砂质泥岩25100.5425e40.1472.16360.75细砂岩28733.34e40.2353.2421.29砂岩24871.35e40.1232.0640

3、1.13煤13煤13800.53e40.321.25320.15底板泥岩24831.77e40.2041.2320.58粉砂岩24601.95e40.23.75381.84砂岩25802.5e40.1592.5423.6砂质泥岩25301.085e40.1472.45402.01参数岩性岩体密度内凝聚力内摩擦角杨氏模量泊栅屮剪切模量体积模量(k-/m)(MPa)()(MPa)山忆儿(Mpa)(Mpa)屮申粒砂畀263()12.1136361040.26S21%11S6S7.4破裂蒂介质132()00723()91工10).17S36()656表1模型各岩层的力学参数岩口密度畑抗拉强度冉11勺休

4、积模童勢切模童/MPhOJj川ii唇睜擦角粉砂7.)7(H)5m11.511.5便煤1S511.771()5(X)l.SS12软煤300().2()DO1-15()0.1粉砂丄侃曲5W59$3(】15.315.11各JS土的辅理力学性质土靑度p曲枪比粘豪力由饉攜诺前切樓(m)4c(w3GtMh)上擢15I8600.34616273&.3L7.7基层10llffl0.2618231157.1上层为填筑中细砂土，基层为中硬粘土主要为砂质泥岩，无其他岩土层，岩体基本质量等级W。粘聚力c=730kPa,内摩擦角0=31，弹性模量E=2661Mpa,泊松比v=0.3，密度p=2559kg/m3。表丨排土

5、场土体物理力学性质E体类别休积模量K/lXIdPa剪切模量G/lX|(ic，Pll内聚力C/1X1(iPll惟擦角d/(u)黄1.65.333(|.3725.2亚粘-2.86丄丹2d.?表1岩上体岩石力学参数rab1Mec-lianicspaiameteioftherock序号标识ul-4石石名称密度/(吨ni3)体积模it/Pa剪切模it/Pa抗拉强度/Pa粘结力/Pa内摩擦角/（：）Itl土层19602.Se89.3e73.5e5S.5e525212細砂25402.7e91.6旳1.0r62.0e6353t3中砂25K03.3旳2.5e9L2e64.0e6374142煤层14008.5p8

6、3-8e85.0e51.0e62H515粗砂25604.2e9259L5e65.0e634616砂贞26005.Ip93.3旳2.0e64.5e6377t7粉砂26305.0e93.8e92.5e66.0e635gIS4煤层1430L0p94.6e86.0e5L2e62H919砂页26605.7p93.4e926葩5.0e63510tio粉砂26805.6e94.2旳3.5e6S.0e63XTable3.4Selectedelasticconstants(laboratoiy-scale)forrocksadaptedfiwiiGoodntait,1980JE(GPa)VK(GPa)G(GPa

7、)Bereasandsrone19.30.3826.87.0Hackensacksiltstone26.30.22156IOSBedfordlimestone28.50.29226111Micaceousshale11.10.298.84.3Cherokeemarble55.80.2537.222.3NevadaTestSitegiamte73.80.2243.9302Table3*5Selectedstrengfhproperties(labordtoty-scale)forrocks(ulnptedfrontGombmiu,1980firictianatigLe(degrees)cohes

8、ion(MPa)tensilestrengrh(MPa)Bereasaiidstone27.32?.21.17Repe-rtofeilTstctie32.13丄7Muddy5haleL4.43S.4Siouxquartzite4S070.6Ltkdiaiifllime&Tctie4206.721.58StoneMokiikramgianite?L.O55.1Ne/adflTe-srirebasaltM.O66.2B.l对于土、岩石和混凝土一类材料，剪胀角通常明显小于材料的内摩擦角试验研究煤矿安全(2009-03)表1岩体物理力学参数岩性厚度m密度/kg*eii3抗拉强度/MPa内摩擦角/D内聚

9、力/MPa剪切模量/GPa体积模屋/CiPa中细粉砂岩T702721.0028137.65.202081477223采空区9.052010.00D.01200.80019Q46泥岩3262289L001.1539.351.30L00217细砂岩14.42325&002164L98240L45201匪煤2271420.00(10120080019Q46泥岩22502699.002483K95Z80L4028683煤0.S61420.000.01200.80019Q46中细砂岩5.202977.00玄7040.873.20254289泥岩11232276&003.3640.7L80L45L72表4

10、-5常见岩石力学性质的经验数据岩类岩石名称抗压强度抗拉强度弹性模量泊松比751102.13.31.45.60.360.16UU岩花冈岩1201803.45.15.436.90.160.10浆1802005.15.70.100.02801002.32.80.360.16UU岩正长岩1201803.45.11.511.40.160.101802505.15.70.100.02岩类岩石名称抗压强度抗拉强度弹性模量泊松比1202003.45.70.250.10闪长岩2002505.77.12.211.40.100.02斑岩1605.46.67.00.16安山岩1201603.44.54.310.60.

11、20.16玄武岩1602504.57.10.160.021601804.55.10.160.10辉绿岩2002505.77.16.97.90.100.02流纹岩1202503.47.12.211.40.160.02花岗片1802005.15.77.39.40.200.05麻岩801002.22.80.300.20变片麻岩1401804.05.11.57.00.200.05质石英岩872.54.514.20.200.16UU岩2003605.710.20.150.10大理岩701402.04.01.03.40.360.16千枚岩1201403.44.02.23.40.16板岩凝灰岩1202503

12、.47.12.211.40.160.02火山角砾岩1202501.011.40.160.0580-87火山集块沉岩401001.12.80.360.20积砾岩1201603.44.51.011.40.200.16UU岩1601504.57.10.160.05石英砂岩68102.51.93.00.391.250.250.054.5100.20.30.30.25砂岩471801.45.22.785.40.20.05岩类岩石名称抗压强度抗拉强度弹性模量泊松比片状砂岩801302.33.86.10.250.05碳质砂岩501401.54.10.62.20.250.08碳质页岩25801.85.62.6

13、5.50.200.16黑页岩661304.79.12.65.50.200.16带状页岩680.40.60.300.25砂质页岩601804.38.62.03.60.300.16云页岩软页岩201.41.32.10.300.25页岩20401.42.81.32.10.250.153.5200.31.40.400.30泥灰岩40602.84.20.382.10.300.20黑泥灰岩2.5301.82.11.32.10.30.2510170.61.00.500.3125551.53.30.310.25石灰岩701284.37.62.18.40.250.1618020010.711.80.160.04401201.13.40.360.16白云岩1201403.44.01.33.40.16表4-6常见岩石的各种强度对比岩石名称和6花冈岩0.0280.0680.09石灰岩0.0590.060.15砂岩0.0290.060.078斑岩0.0330.060.064石英岩0.1120.176大理岩0.2260.272