高速公路隧道施工力学数值模拟分析实例
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高速公路隧道力学数值分析
/NOPR !菜单过滤设置
KEYW,PR_STRUC,1 !保留结构分析部分菜单
/PREP7 !进入前处理器
ET,1,BEAM3 !设置了梁单元类型，模拟喷射混凝土ET,2,PLANE42 !设置平面实体单元类型，模拟围岩KEYOPT,2,3,3 !设置平面应变模式
R,1,0.15,0.000281,0.15 !设置梁单元几何常数
MP,EX,1,23E9 !输入弹性模量
MP,PRXY,1,0.2 !输入泊松比
MP,DENS,1,2500 !输入密度
MP,EX,2,8E9 !输入弹性模量
MP,PRXY,2,0.28 !输入泊松比
MP,DENS,2,2400 !输入密度
TB,DP,2 !输入DP 模型的相应参数TBMODIF,1,1,1.2E6 !输入粘聚力
TBMODIF,1,2,42 !输入内摩擦角
MP,EX,3,16E9 !以下输入加固圈（锚杆加固范围）参数MP,PRXY,3,0.25
MP,DENS,3,2500
TB,DP,3
TBMODIF,1,1,2.4E6
TBMODIF,1,2,50
SA VE
K,1,21,0,0
K,2,15,-1,0
K,3,27,-1,0
K,4,0,0,0
K,5,0,21,0
K,6,21,21,0
K,7,42,21,0
K,9,55,0,0
K,10,55,21,0
K,11,55,56,0
K,12,0,56,0
K,13,21,56,0
K,14,42,56,0
K,15,55,-14,0
K,16,42,-14,0
K,17,27,-14,0
K,18,0,-14,0
K,19,14.9896,6.0104
K,20,27.0104,6.0104
KSYMM,X,ALL,,,,0,0 !对称复制所有关键点NUMMRG,ALL,,,,LOW !合并所有关键点NUMCMP,ALL !压缩所有关键点编号SA VE
K,,15,-14
K,,-15,-14
CIRCLE,1,6
CIRCLE,21,6
CIRCLE,21,8.5
CIRCLE,1,8.5
LDELE,3,4,1,1
LDELE,7,8,1,1
LDELE,11,12,1,1
LDELE,15,16,1,1
NUMMRG,ALL,,,,LOW
NUMCMP,ALL
SA VE
!创建将要划分六段的线
L,30,12 L,12,13 L,13,14 L,29,28 L,31,25 L,30,24 L,12,5 L,13,6 L,14,7 L,11,10 L,25,24 L,24,5 L,5,6 L,6,7 L,28,27 L,25,26 L,25,36 L,24,46 L,43,21 L,35,5 L,5,4 L,5,19 L,6,49 L,40,1 L,20,7 L,7,8 L,9,10 L,8,48 L,4,50 L,4,45
L,27,32
L,26,33
L,4,18
L,8,16
L,9,15
!创建将要划分三段的线L,29,31
L,14,11
L,28,25
L,7,10
L,27,26
L,8,9
L,33,32
L,15,16
!绘制将要划分五段的线L,23,34
L,22,38
L,2,37
L,3,17
!绘制将要划分二段的线L,44,47
L,43,46
L,42,45
L,50,41
L,40,49
L,39,48
!绘制将要划分一段的线
L,23,44
L,22,42
L,41,2
!绘制将要划分十二段的线L,44,21
L,21,42
L,41,1
L,1,39
!绘制将要划分二十四段的线L,22,23
L,34,38
L,2,3
L,37,17
!绘制将要划分八段的线
L,33,34
L,38,18
L,18,37
L,17,16
SA VE
!通过线创建面
AL,22,23,35,37,7,8,38,30 LSEL,S,LINE,,31,38,7 LSEL,A,LINE,,8
ASBL,1,ALL
LSEL,S,LINE,,31,34,3 LSEL,A,LINE,,7,81,74 ASBL,3,ALL
ALLSEL,ALL
AL,20,21,30,39,5,6,40,25 LSEL,S,LINE,,26,40,14 LSEL,A,LINE,,6
ASBL,3,ALL
LSEL,S,LINE,,26,29,3
LSEL,A,LINE,,5,83,78 ASBL,6,ALL NUMMRG,ALL,,,,LOW NUMCMP,ALL
SA VE
ALLSEL,ALL
AL,2,32,69
AL,32,70,1
AL,79,80,61,2,60
AL,61,81,7,62,1
AL,37,60,65,55,77,42 AL,69,70,66,73,65 AL,73,56,74,55
AL,62,36,43,78,56,66 AL,50,44,52,43
AL,48,35,50,34
AL,46,18,48,17
AL,11,17,22,16
AL,10,16,21,15
AL,9,15,20,14
AL,8,14,19,13
AL,45,13,47,12
AL,47,24,49,23
AL,4,27,67
AL,27,68,3
AL,6,82,58,4,57
AL,83,5,59,3,58
AL,49,41,51,40
AL,39,57,63,53,75,41 AL,67,68,64,71,63 AL,71,54,72,53