一般岩土参数归纳

表2数值模型中各岩层力学参数Table2Themechunlealparaiieter±iofruckstraUilidieniniericalniudek岩性弹性模量心P1泊松比k体积力/US,m3抗解强度AIPa抗拉强度加Pa内摩擦角/(°)表土层10.00.2()200010粉砂岩4K.00.2527604.U035细砂岩50.00.3021704.6035巾眇岩50.00.2721704.6。35黏上岩2注。0.2()75151.5030煤层15,00.30131.1i.no25充填体4.50,2220.10.2535 疑1JR土物理力学叁数Table1Physicalandmechanka]parameterofsoils厚度，E/P：C/5岩信niGFa(t,ma)MP巨表土20。*。30.32197。。.侬24沙黏土2clQ.030.3口2。口。口.,15%2果出率50%时模拟方案Table2Simulateprojectnfrecoveryrateat50%方案果宽/m翳宽/m采出条带，-个110101N2So206330304

表3覆岩的物理-力学参数Table3Parametersofphysics-meclianicsofoveriyiugstrata序号岩性层厚/m标高/一石单向抗压眼度bJMPu岩石单抗也强度卬MPh弹件.模员内聚力OMPji内摩擦角啊it密度17钙质都十封坂0-2S&0熟加LSO2.26245016红层黏.L4-7-325-01&00I.202.2020245015凤化砂施岩9.6-皿732如1.421.403.00M14粉砂岩3.0-339.34UWL“L604.5U2«257D13石英砂岩143-342.35至363.73IIDO412730L2砂质泥岩62-抬&61氐000.601.20].5O3325昶11犯异K5-363833.70L26LSO2.睚工7232010粉砂岩1.5-369.389.052.022602.80321570g中砂岩5.6-S70,R109,配Xioio.in的2颁s泥质粉计悬1.8-376.4蔚42250566其15007亡口士媒L.0-3T&22aooL.200.&02(]14006粉卸砂岩1..8-皿2S160L1工2035二谢5泥舁3.4-381.026.«)I.70127252D4砂戒泥岩-384.43a%2.70L.402203225003C耳.।煤3.4-M0.42nloo1.20。,RO的14002中砂岩3.5一晒.匕121.605.14220H.5C钝249001粉姗砂岩5.5-g3RA4f]X123.2055033255(1

表5」模拟开采模型的煤岩层及物理力学性质-览塞Table.5.LIliefbimof(hephysical-inechailicalpropeiilesofrockofthe:；L ■ ， aELAC'-numericalcalculationmodel岩性厚度山1弹性模量；MPa泊松比抗压强度/MPa抗拉强度/MPa电力密度内摩擦用/粘钻力fMPa松散层6040口,23口,080.0004工50.0023中粗砂岩432150000.6922.559522,93泥岩31018700口43130.0742，灯4。153中粗砂岩3401340062,40.9952.559473,82昵岩3201S7000431301152.75321.91中粗砂岩248222000196006852.63523.29砂质泥岩36122000.233302932J1432.19中细砂岩5288000131031.182614554.73泥岩130173000441901692659303.27中粗眇岩11E272000.24881.172.669495.37砂岩2521540004415.20.152265925工36粉砂岩2212200023330.584-2.51293.16砂岩】22262000.21450.4492.749413.07细砂岩25216000.441320.16S2699253.82煤层212000.2614.50.05781305201J0细砂岩130270000.23352.322.6694-57.83表1数值模拟让算模型的岩体力学蓼数岩性厚度hn弹性模量/GPa泊松比容重/抗压强抗拉强fin_®/MPd®MPt内摩擦】角，（口）表土层19005(1320ft70fl110粉砂岩2()2002527 go 839中砂岩353002727 80 836细砂行1525ftS27 80 837煤层4L5asL3 20 225中砂岩先4002727 80 836表2充填材料力学参数抗压强度弹性模量抗拉强度：剪切强度充填体容内摩擦角MPa/GPa/MPa/MPa重/fm34045Q252 2135

表1模型内各岩层赋存特征及力学参数Table1Thecharacteristicandmechaniealparametersofstratainthenumericalmodel岩性厚度/m性量pa弹模阳泊松比容重ZkN,m*内摩擦角伫抗拉强度/MPa粘聚力/MPa备注表土60130.292050.05C©%分层厚度3m砂岩1036.00.2。27325.001CW00右关键层泥岩127二0.222525L203.000分层厚度2m中砂519。0.1727322.105.000亚关键层泥岩137.20.202525L203.000分层厚度2m煤38.80.2313180.801.500煤也砂岩723.00.1827302.105©00底板表1FLAO口模拟中关键物理力学参数Tab.1Mechanicalpa'ajnetersofthecod里弟力andstrataintheFLAC而力学特性厚度/m弹性模量/GPa内聚力/MPa内磨擦角r密度/(kgfrn3)孔隙压力/MPa备注老底9.42010302700百接底0.6710302400燥831.5181400直接顶91332326001K后！3.8201030?700主关键层覆岩143232600流体21aaa表」岩层物理力学参数岩怛层厚“幽马杭推强度/MFil揖虚强度/MFil泊松比弹性模量/ME*a内摩擦带/(")内聚力体积模或i]OThlPa西切模阜!JO^lPa四含层22.425300.90Kb116[)升4Q272.90.90.7耙岩7.52划2.3&16.80.95242.7：L1(kfi230细小母2.523QQ0.7063.g(170出招121.30.97220.2535促岩工得26101.1317.1工070..12252.20.91k90.9241粉陟*?66S1.1937.71.07阻15151.B0.50950.4652妙亚泥岩1625001.7?21a20.850-.21141.70.48850.3312堪90U4200.20C.20.400.3691.00.47620..1471杨眇岩5.42曲।LH212.3L.L20.科302.30.71790.451&表1采区」•.覆岩屋找性黎致序号宫石名构〔由）埋深ttut抗压(MPa)抗拉(MPa)弹模(CPe)泊松比R(CFa)51GPa)c(MPa)牛r)容垂（5,n，1表120200.760-30.03比52d0833330.0113640.1252419702一屐粘土y292.4n.nD.UU0.3H.20.CM)7辐u.126152(WU3钿到中砂40694.20.40.120.230.2222220.048780.0392518704粘土7714615L20.21比270.45-65220.0826770.1553021405风化混岩91554.6fl.620.7fl.26I.4SS3130.27777fi1.151226风但石英砂岩2818341工32.670.245.J346I51.0766132.83626807砂加泥岩192D226L81.4D.252.SD.56工435244D8泥岩|£2201.51.7D.J4.25fl.651f.462.2事425209m煌52251.3DJ0.4S250.80.160.82D1420ID砂泥岩目L，：102352D.71.7L22D.272.6521740.4SD3I5工1£254D|]『媒22^11.2n.iD.4。一空O.fiD.16<1lS2[)142012砂泥岩”:层1024721L74L32立27工的93630.31915&52.L34256013廿泥岩"房102ft021.11.7®L42D.262.9583330.563492工13425SD堤垠200.20.15fr.OL]0.33注帕23抬a.ODU135中.IS251州口根据《混凝土结构设计规范》GB50010-2002的规定：混凝土的弹性模量（x10八4N/mm八2）为：C15C20C25C30C35C40C45C50C55C60C65C70C75C802.202.552.803.003.153.253.353.453.553.603.653.703.753.80钢筋的弹性模量（x10A5N/mm八2）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钢铰线：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1（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2.0x10八4~3.5x10八4MPa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岩士名称容重Y（kN/m3）内聚力C（kPa）内摩擦角8°）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18.0018304中砂层18.502540

5-1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)摩擦角

（度）

土层与锚

体间的粘结强度（kPa）1杂填土18.51012152-1粉质粘土19.5181620

2-2中砂19022603粉质粘土19.5201725

4-1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251503928

土层号土层名称,密度(kN/m3)内聚力(kPa)摩擦角(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19.5IS16202-2中砂19022603粉质粘土19.52017254-1全风化岩19.03()25304-2强风化岩19.54030804-3中风化岩23.5803315。4-4微风化泥质粉砂岩2515039280徐筠(2008)提出以下问题表3.1。各级围岩物理力学卷数表「岩级别面:度“kN小】')变形模量小(GPa)泊松比”内摩擦用09)粘聚力C(MPs)I26-29＞打<0,5>60>2.]]]25-272。小0.2-0.255(^601.5-2.1tn23-256-200.25-0.33*500.7-].5(V2(5L3-