一般岩土参数汇总

1、表2数值模型中各岩层力学参数Table2ThemechanicaIparanetersofrockstratanthenunericalmodels岩性弹性模&/GPa泊松比体积力/kN-m-3抗乐强度 MPa抗拉强度/MPa内摩擦角/()表土层10.00.20200010粉砂岩48.00.2527604.0035细砂岩50.00.3027704.6035中砂岩50.00.2727704.6035黏土岩20.00.2025151.5030煤层15.00.3013151.0025充填体4.50.222050.2535jft1衰土物理力学参数Table1Physicalandmechanicalp

2、arametersoils岩层厚度/mE/GPaV(p/tm13)c/MPa叫(表土200.030.3219700.12524沙黏土200.050.3020000.14515密2采出率50%时模拟方案Table2SimulateprojectofrecoveryrateatSO%方案采宽/m留宽/m采出条带/个1101012220206330304表3覆岩的物理-力学参数Table3Parametersofphysics-mechanicsofoverlyingstrata序号岩性层厚/m标高/m岩石单向抗压强度。/MPa岩石单向抗拉强度。八IPa弹性模质E/GPa内聚力C/MPa内摩擦角叼(

3、)密度/kg*m-17钙质黏土岩37.0-288.03&201.802.2624245016红层粘土4.7-325.01&001.202.2020245015风化砂泥岩9.6-329.732401.421.403.0027250014粉砂岩3.0-339.34G901.601.604.5028257013石英砂岩143-342.355.36二7311.0041273012砂质泥岩6.2-356.616000.601.201.5033253011泥岩6.5-362.83&701.261.802.3227252010粉砂岩1.5-369.389.052.022602.8032257()9中砂岩5.

4、6-370.8109.3031010.103726008泥质粉砂岩1.8-376.46&422505.663025007C-2燥1.0-378.22Q001.200.802014006粉细砂岩1.8-379.232601.12.203525005泥岩3.4-381.026601.701.682725204砂质泥岩6.0-384.43ft902.701.402.20322XX)3C”-1煤3.4-390.42ft001.200.802014002中砂岩5.5-393.8121.605.1422011.504026001粉细砂岩5.5-399.38S403.12二205.50332550表 5.1

5、 模拟开采模型的煤岩层及物理力学性质一览表Table.5.1Thefonnofthephysical-mechaiiicalpropertiesofrockoftheFLAC3Dnumericalcalculationmodel岩性厚度/m弹性模成/MPa泊松比抗乐强度/MPa抗拉强度/MPa重力密度/xlO4N/m3内摩擦角/()粘结力/MPa松散层60400.230.080.00041.87250.0023中粗砂岩 432150000.32780.6922.559522.93泥岩 310187000.43130.07422.75401.53中粗砂岩 340134000.3262.40.99

6、52.559473.82泥岩 220187000/3130.1152.75321.91中粗砂岩 248222000.19600.6852.63523.29砂质泥岩36122000.23330.2932.51432.19中细砂岩5288000.131031.182.614554.73泥岩 130173000.44190.1692.659303.27中粗砂岩 118272000.24881.172.669495.37砂岩 252154000.4415.20.1522.659253.36粉砂岩22122000.23330.5842.51293.16砂岩 122262000.21450.4492.74

7、9413.07细砂岩 25216000.4415.20.1682.699253.82媒层212000.2614.50.05781.305201.30细砂岩 130270000.23352.322.669457.83表1数值模拟计算模型的岩体力学参数岩性厚度An弹性模量/GPa泊松比容重/t*m-3抗压强抗拉强度/MPa度/MPa内摩擦角/()表土层19005Q320a700110粉砂岩20200252780839中砂岩3530Q272780836细砂岩1525Q32780837煤层4L5Q3L320225中砂岩35400272780836表2充填材料力学参数抗压强度弹性模量抗拉强度剪切强度充填

8、体容内摩擦角MPa/GPa/MPa/MPa重/fm3/()4045Q2522135表1模型内各岩层赋存特征及力学参数Table1Thecharacteristicandmechanicalparametersofstratainthenumericalmodel岩性厚度/m性量pa弹模/G泊松比容重/kNm3内摩擦角。)抗拉强度/MPa粘聚力/MPa备注表土601.50.292050.050.094分层厚度3m砂岩1036.00.2027325.0010.000主关键层泥岩127.20.2225251.203.000分层厚度2m中砂519.00.1727322.105.000亚关键层泥岩137

9、.20.2025251.203.000分层厚度2m煤38.80.2313180.801.500煤层砂岩723.00.1827302.105.000底板表1FLAC力模拟中关键物理力学参数Tab.lMechanicalparametersofthecoaljeamandstrataintheFLAC30力学特性厚度/m弹性模量/GPa内聚力/MPa内磨擦角/。密度/(k/n?)孔隙压力/MPa备注老底9.42010302700直接底0.6710302400煤831.5181400直接顶91332326001老顶5.82010302700主关键层覆岩143232600流体21000表i岩层物理力学

10、参数岩性层原/m容或抗拉强度/MPa抗压强度/MPa泊松比弹性模量/MPa内摩擦角/C)内聚力/MPa体枳模量/lMPa剪切模量/ItPMPa四含层22.425300.808.60.600.40272.90.90.7龙岩7.523302.3616.80.950.50242.71.10.6230细砂岩2.523000.7063.80.700.38121.30.97220.2536泥岩2.826101.1317.72.070.12252.20.90790.9241粉砂岩3.326681.1937.71.070.15151.80.50950.4652砂质泥*2.6250)1.7921.20.850.

11、21141.70.48850.3512燥9.014200.206.20.400.3691.00.47620.147I粉砂岩5.426901.8212.31.120.24302.80.71790.4516表I采区上粮岩层岩性参数序号岩担名称层厚(H1)理深（抗压1MPa)抗拉(MPa)弹模(GPn)泊松比H(GPGs(GPa)cfMPai甲容篁(kfl/m)1表十20200.760.30.030.320.0833330.0113640.1252419702砂威粘E9292.40.12。.堀0.30.20.()307690.126152(JOO3的到中砂40694.204().120.230.22

12、2222“口48780.()3925l87。4粘上771461520.21().27a4565220.0S26770.1553021405风化泥岩91554.60.620.7().261.458333(127777KL1532234()6风化石英砂岩28183412.3工670.245.6151.0766132,S3626S07砂质泥岩19202261.81.40.252.a0.562,J3524408泥岩18220IS1.51.70.34.250.6538462,23425209IT煤52251.30.10.40.250.80.160.当20I42010砂泥岩互层1023520.71.71.

13、220.272.6521740.4&011511312540|)|媒2237L30.10.4也250.80.160.&20l42012砂泥岩互层1.024721L74,320,272.R695650,5196852.134213砂泥岩互层1.026021,11.7SL420,26X9583330.M34922.13425R014堤堀200,20.15Q.0110,330；0323530.004135618251的。根据混凝土结构设计规范GB50010-2002 的规定：混凝土的弹性模量（X10A4N/mmA2）为：C15C20C25C30C35C40C45C50C55C60C65C70C75C

14、802.202.552.803.003.153.253.353.453.553.603.653.703.753.80钢筋的弹性模量（X10A5N/mmA2）为：HPB235 级钢筋：2.1HRB335 级钢筋、HRB400 级钢筋、RRB400 级钢筋、热处理钢筋：2.0消除预应力钢丝（光面钢丝、螺旋肋钢线、刻痕钢丝）：2.05钢较线：1.95一种方法：用规范规定的受弯构件的短期刚度 BS 除以构件的 I（惯性矩）；另一种方法：EA=E1A1+E2A2（E 为等效模量，E1 为钢筋模量，E2 为混凝土模量）EI=E1I1+E2I1即等效前后的面内刚度和弯曲刚度分别相等。在结构中钢筋混凝土和素混

15、凝土的弹性模量是差不多的，有些细微的差别，在 10%以内。这其中和配筋率有一定关系。而素混凝土的弹性模量主要和混凝土的强度等级有关，不同的强度等级的弹性模量不同，从 C20 到 C60 混凝土的弹性模量在 2.0M0A43.5Xl0MMPa 之间两部分内容一结合你要求的 2 种弹性模量就出来了。表4.5岩土体和堤岸结构参数取值表地层代号上 1 上名称容重丫(kN/n3)内聚力C（kPa）内摩擦角4（）岩土体与锚固体极限摩阻力标准值（kPa）1填土层19.01015252-2砂质粘性土（软-可塑）18.51015253-1B淤泥质（流塑）17.068203-2粉细砂、粉细砂夹淤泥18.00183

16、04中砂层18.5025405-1砂质粘性土（残积，可塑）18.52018505-2砂质粘性土（残积，硬塑）19.03022606全风化层19.53524707强风化层20.570271508中风化层25.0200302509混凝土 C1523.5/10混凝土 C2024.0/11混凝土 C3025.0/12抛石块石22.10.035.0/13回填砂中细砂1.900.024.0/14回填砂中粗砂19.30.027.0/15回填粘性土填筑料18.52524.0/土层号土层名称密度(kN/m3）内聚力（kPa）雇擦馅（度）土层与锚固体间的粘结强度（kPa）1杂填土18.51012152-1粉质粘土

17、2-2中砂3粉质粘土全风化岩强风化岩中风化岩19,5181620190226019,520172519,030253019,540308023,580331504-4微风化泥质粉砂岩251503924-14-24-3土星案撒取慎泉土层号土层名称/密度(kN/m3)(内聚力(kPa)摩擦角(度)十层与锚固体间的粘结强度(kPa)1杂填1.18.51012152-1粉质粘土19.51816202-2中砂19022603粉质粘土19.52017254-1全风化岩19.03025304-2强风化岩19.54030804-3中风化岩23.580331504-4微风化泥质粉砂岩25150392809徐筠(2008)提出以下问题表 3J0各级围岩物理力学参数关用岩级别市险*kN/n?)33602J1125-2720730.2-0.255g60L52,1123-256ToH0.339-50。一7一