Question

求用强度折减法ansys求解隧道开挖安全系数命令流。

谢谢，我要求二维模型， 非常感谢。

Answer 1

首先很高兴为你解答，我自认为自己对岩土边坡稳定性这一方面，特别是数值模拟分析方面还是有一定研究的。首先，针对你用ansys求解安全系数，利用强度折减系数法，ansys是没有自己折减的功能的，这个需要你自己对粘聚力和内摩擦角进行折减，然后再带入计算，知道ansys计算不收敛的Fs即可认为是安全系数。希望你明白，我可以给你一个未折减的命令，别忘记采纳！
/COM,STRUCTURAL
/TITLE,LEFT SLOPE OF JINGPING

/PREP7
*afun,deg
ET,1,PLANE82
ET,2,BEAM3
ET,3,LINK1
KEYOPT,1,3,2
KEYOPT,1,5,0
KEYOPT,1,6,0

R,1,1,1/12,1, , , ,
R,2,0.0016, ,

MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,4.7e9
MPDATA,PRXY,1,,0.35
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,2700
TB,DP,1,,,
TBMODIF,1,1,1.6E6
TBMODIF,1,2,23
TBMODIF,1,3,

MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,2,,8.4E9
MPDATA,PRXY,2,,0.3
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,2,,2700
TB,DP,2,,,
TBMODIF,1,1,2.2E6
TBMODIF,1,2,30
TBMODIF,1,3,

MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,3,,3.2E9
MPDATA,PRXY,3,,0.275
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,3,,2700
TB,DP,3,,,
TBMODIF,1,1,1.5E6
TBMODIF,1,2,20
TBMODIF,1,3,

MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,4,,4.8E10
MPDATA,PRXY,4,,0.25
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,4,,2700
TB,DP,4,,,
TBMODIF,1,1,3.2E6
TBMODIF,1,2,42
TBMODIF,1,3,

MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,5,,3E10
MPDATA,PRXY,5,,0.2
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,5,,2500

MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,6,,1.7E11
MPDATA,PRXY,6,,0.3
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,6,,7959
K,1,0,0,0
K,2,500,0,0,
K,3,500,160,0,
K,4,0,160,0,
K,5,0,190,0,
K,6,0,220,0,
K,7,0,250,0,
K,8,0,280,0,
K,9,0,300,0,
K,10,156,300,0,
K,11,161.95,295,0,
K,12,167.89,290,0,
K,13,173.84,285,0,
K,14,179.79,280,0,
K,15,185.73,275,0,
K,16,191.68,270,0,
K,17,197.63,265,0,
K,18,203.57,260,0,
K,19,209.52,255,0,
K,20,215.46,250,0,
K,21,221.41,245,0,
K,22,227.36,240,0,
K,23,233.30,235,0,
K,24,239.25,230,0,
K,25,245.20,225,0,
K,26,251.14,220,0,
K,27,257.09,215,0,
K,28,263.04,210,0,
K,29,268.98,205,0,
K,30,274.93,200,0,
K,31,280.88,195,0,
K,32,286.82,190,0,
K,33,292.77,185,0,
K,34,298.71,180,0,
K,35,304.66,175,0,
K,36,310.61,170,0,
K,37,316.55,165,0,
K,38,322.5,160,0,
K,39,232,160,0,
K,40,229.5,165,0,
K,41,227,170,0,
K,42,224.5,175,0,
K,43,222,180,0,
K,44,219.5,185,0,
K,45,217,190,0,
K,46,214,190,0,
K,47,211.5,195,0,
K,48,209,200,0,
K,49,206.5,205,0,
K,50 ,204,210,0,
K,51,201.5,215,0,
K,52,199,220,0,
K,53,196,220,0,
K,54,193.5,225,0,
K,55,191,230,0,
K,56,188.5,235,0,
K,57,186,240,0,
K,58,183.5,245,0,
K,59,181,250,0,
K,60,178,250,0,
K,61,175.5,255,0,
K,62,173,260,0,
K,63,170.5,265,0,
K,64,168,270,0,
K,65,165.5,275,0,
K,66,163,280,0,
K,67,160,280,0,
K,68,157.5,285,0,
K,69,155,290,0,
K,70,152.5,295,0,
K,71,150,300,0,
K,72,142.5,295,0,
K,73,145,290,0,
K,74,147.5,285,0,
K,75,150,280,0,
K,76,155.5,275,0,
K,77,158,270,0,
K,78,160.5,265,0,
K,79,163,260,0,
K,80,165.5,255,0,
K,81,168,250,0,
K,82,173.5,245,0,
K,83,176,240,0,
K,84,178.5,235,0,
K,85,181,230,0,
K,86,183.5,225,0,
K,87,186,220,0,
K,88,191.5,215,0,
K,89,194,210,0,
K,90,196.5,205,0,
K,91,199,200,0,
K,92,201.5,195,0,
K,93,204,190,0,
K,94,209.5,185,0,
K,95,212,180,0,
K,96,214.5,175,0,
K,97,217,170,0,
K,98,219.5,165,0,
K,99,222,160,0,
L,10,11
L,11,12
L,12,13
L,13,14
L,14,15
L,15,16
L,16,17
L,17,18
L,18,19
L,19,20
L,20,21
L,21,22
L,22,23
L,23,24
L,24,25
L,25,26
L,26,27
L,27,28
L,28,29
L,29,30
L,30,31
L,31,32
L,32,33
L,33,34
L,34,35
L,35,36
L,36,37
L,37,38
L,10,71
L,71,70
L,70,69
L,69,68
L,68,67
L,67,66
L,66,65
L,65,64
L,64,63
L,63,62
L,62,61
L,61,60
L,60,59
L,59,58
L,58,57
L,57,56
L,56,55
L,55,54
L,54,53
L,53,52
L,52,51
L,51,50
L,50,49
L,49,48
L,48,47
L,47,46
L,46,45
L,45,44
L,44,43
L,43,42
L,42,41
L,41,40
L,40,39
L,39,38
L,40,37
L,41,36
L,42,35
L,43,34
L,44,33
L,45,32
L,47,31
L,48,30
L,49,29
L,50,28
L,51,27
L,52,26
L,54,25
L,55,24
L,56,23
L,57,22
L,58,21
L,59,20
L,61,19
L,62,18
L,63,17
L,64,16
L,65,15
L,66,14
L,68,13
L,69,12
L,70,11
L,9,71
L,9,8
L,8,7
L,7,6
L,6,5
L,5,4
L,4,1
L,8,67
L,7,60
L,6,53
L,5,46
L,4,39
L,38,3
L,1,2
L,2,3
L,72,71
L,73,70
L,74,69
L,75,68
L,76,66
L,77,65
L,78,64
L,79,63
L,80,62
L,81,61
L,82,59
L,83,58
L,84,57
L,85,56
L,86,55
L,87,54
L,88,52
L,89,51
L,90,50
L,91,49
L,92,48
L,93,47
L,94,45
L,95,44
L,96,43
L,97,42
L,98,41
L,99,40
AL,1,29,30,89
AL,2,89,88,31
AL,3,88,87,32
AL,4,87,86,33,34
AL,5,86,85,35
AL,6,85,84,36
AL,7,84,83,37
AL,8,83,82,38
AL,9,82,81,39
AL,10,81,80,40,41
AL,11,80,79,42
AL,12,79,78,43
AL,13,78,77,44
AL,14,77,76,45
AL,15,76,75,46
AL,16,75,74,47,48
AL,17,74,73,49
AL,18,73,72,50
AL,19,72,71,51
AL,20,71,70,52
AL,21,70,69,53
AL,22,69,68,54,55
AL,23,68,67,56
AL,24,67,66,57
AL,25,66,65,58
AL,26,65,64,59
AL,27,64,63,60
AL,28,63,62,61
AL,30,31,32,33,90,91,97
AL,34,35,36,37,38,39,40,97,92,98
AL,41,42,43,44,45,46,47,98,93,99
AL,48,49,50,51,52,53,54,99,94,100
AL,55,56,57,58,59,60,61,100,95,101
AL,96,101,62,102,103,104

LESIZE,1,,,2
LESIZE,2,,,2
LESIZE,3,,,2
LESIZE,4,,,2
LESIZE,5,,,2
LESIZE,6,,,2
LESIZE,7,,,2
LESIZE,8,,,2
LESIZE,9,,,2
LESIZE,10,,,2
LESIZE,11,,,2
LESIZE,12,,,2
LESIZE,13,,,2
LESIZE,14,,,2
LESIZE,15,,,2
LESIZE,16,,,2
LESIZE,17,,,2
LESIZE,18,,,2
LESIZE,19,,,2
LESIZE,20,,,2
LESIZE,21,,,2
LESIZE,22,,,2
LESIZE,23,,,2
LESIZE,24,,,2
LESIZE,25,,,2
LESIZE,26,,,2
LESIZE,27,,,2
LESIZE,28,,,2
LESIZE,29,,,2
LESIZE,30,,,2
LESIZE,31,,,2
LESIZE,32,,,2
LESIZE,33,,,2
LESIZE,34,,,1
LESIZE,35,,,2
LESIZE,36,,,2
LESIZE,37,,,2
LESIZE,38,,,2
LESIZE,39,,,2
LESIZE,40,,,2
LESIZE,41,,,1
LESIZE,42,,,2
LESIZE,43,,,2
LESIZE,44,,,2
LESIZE,45,,,2
LESIZE,46,,,2
LESIZE,47,,,2
LESIZE,48,,,1
LESIZE,49,,,2
LESIZE,50,,,2
LESIZE,51,,,2
LESIZE,52,,,2
LESIZE,53,,,2
LESIZE,54,,,2
LESIZE,55,,,1
LESIZE,56,,,2
LESIZE,57,,,2
LESIZE,58,,,2
LESIZE,59,,,2
LESIZE,60,,,2
LESIZE,61,,,2
LESIZE,62,,,15
LESIZE,63,,,10
LESIZE,64,,,10
LESIZE,65,,,10
LESIZE,66,,,10
LESIZE,67,,,10
LESIZE,68,,,10
LESIZE,69,,,10
LESIZE,70,,,10
LESIZE,71,,,10
LESIZE,72,,,10
LESIZE,73,,,10
LESIZE,74,,,10
LESIZE,75,,,10
LESIZE,76,,,10
LESIZE,77,,,10
LESIZE,78,,,10
LESIZE,79,,,10
LESIZE,80,,,10
LESIZE,81,,,10
LESIZE,82,,,10
LESIZE,83,,,10
LESIZE,84,,,8
LESIZE,85,,,8
LESIZE,86,,,8
LESIZE,87,,,8
LESIZE,88,,,6
LESIZE,89,,,4
LESIZE,90,,,15
LESIZE,91,,,2
LESIZE,92,,,3
LESIZE,93,,,3
LESIZE,94,,,3
LESIZE,95,,,3
LESIZE,96,,,16
LESIZE,97,,,16
LESIZE,98,,,18
LESIZE,99,,,20
LESIZE,100,,,22
LESIZE,101,,,23
LESIZE,102,,,12
LESIZE,103,,,50
LESIZE,104,,,16
LESIZE,105,,,2
LESIZE,106,,,2
LESIZE,107,,,2
LESIZE,108,,,2
LESIZE,109,,,2
LESIZE,110,,,2
LESIZE,111,,,2
LESIZE,112,,,2
LESIZE,113,,,2
LESIZE,114,,,2
LESIZE,115,,,2
LESIZE,116,,,2
LESIZE,117,,,2
LESIZE,118,,,2
LESIZE,119,,,2
LESIZE,120,,,2
LESIZE,121,,,2
LESIZE,122,,,2
LESIZE,123,,,2
LESIZE,124,,,2
LESIZE,125,,,2
LESIZE,126,,,2
LESIZE,127,,,2
LESIZE,128,,,2
LESIZE,129,,,2
LESIZE,130,,,2
LESIZE,131,,,2
LESIZE,132,,,2
TYPE,1
MAT,1
ASEL,S,AREA,,1,4,1
MSHKEY,0
MSHAPE,0
AMESH,ALL
ALLSEL
TYPE,1
MAT,1
AMESH,29
ALLSEL

TYPE,1
MAT,2
ASEL,S,AREA,,5,16,1
MSHKEY,0
MSHAPE,0
AMESH,ALL
ALLSEL
TYPE,1
MAT,2
AMESH,30
ALLSEL
TYPE,1
MAT,2
AMESH,31
ALLSEL

TYPE,1
MAT,3
ASEL,S,AREA,,17,28,1
MSHKEY,0
MSHAPE,0
AMESH,ALL
ALLSEL
TYPE,1
MAT,3
AMESH,32
ALLSEL
TYPE,1
MAT,3
AMESH,33
ALLSEL

TYPE,1
MAT,4
MSHKEY,0
MSHAPE,0
AMESH,34
ALLSEL

ALLSEL
TYPE,2
REAL,1
MAT,5
LSEL,S,LINE,,30,62,1
LESIZE,ALL,,,2
MSHKEY,0
MSHAPE,0
LMESH,ALL

ALLSEL
TYPE,3
REAL,2
MAT,6
LSEL,S,LINE,,105,132,1
LESIZE,ALL,,,2
LMESH,ALL

/SOLU
ACEL,0,9.8,0,
NSUBST,150
PRED,ON
NROPT,FULL
NLGEOM,ON
LNSRCH,ON
OUTRES,ALL,ALL
CNVTOL,F,,0.05,2,0.5
CNVTOL,U,,0.05,2,1
ALLSEL
LSEL,S,LINE,,30,62,1
ESLL,S
EKILL,ALL
NSEL,ALL
ESEL,ALL

ALLSEL
LSEL,S,LINE,,105,132,1
ESLL,S
EKILL,ALL
NSEL,ALL
ESEL,ALL
ALLSEL
NSEL,S,LOC,X,0
NSEL,A,LOC,X,500
D,ALL,UX
ALLSEL
NSEL,S,LOC,Y,0
D,ALL,UY
D,ALL,UX
ALLSEL

Answer 2

楼主有联系方式么