《第6章 高速公路分离式偏压隧道施工过程仿真分析》由会员分享，可在线阅读，更多相关《第6章 高速公路分离式偏压隧道施工过程仿真分析（59页珍藏版）》请在金锄头文库上搜索。
1、第1章 大型有限元软件ANSYS简介586.1 施工过程仿真分析1 材料、实常数和单元类型定义/TITLE，Mechanical analysis on railway tunnel 1nd lining! 确定分析标题/NOPR !菜单过滤设置/PMETH，OFF，0KEYW，PR_SET，1 KEYW，PR_STRUC，1 !保留结构分析部分菜单/COM， /COM，Preferences for GUI filtering have been set to display:/COM， Structural /PREP7 !进入前处理器ET,1,PLANE42 !设置实体单元类型KEYOP
2、T,1,1,0KEYOPT,1,2,0KEYOPT,1,3,2 !设置为平面应变模式KEYOPT,1,5,0KEYOPT,1,6,0ET,2,PLANE42 !设置实体单元类型KEYOPT,1,1,0KEYOPT,1,2,0KEYOPT,1,3,2 !设置为平面应变模式KEYOPT,1,5,0KEYOPT,1,6,0ET，3，BEAM3 !设置梁单元类型R,1,0.25,1.5e-3,0.25, , , , !设置梁单元几何常数MPTEMP, MPTEMP,1,0MPDATA,EX,1,0.8e9 !输入弹性模量（围岩）MPDATA,PRXY,1,0.38 !输入泊松比（围岩）MPDATA,D
3、ENS,1,2000 !输入密度（围岩）TB,DP,1, !采用DP准则进行弹塑性分析TBMODIF,1,1,0.2e6 !输入凝聚力（围岩）TBMODIF,1,2,30 !输入摩擦角（围岩）TBMODIF,1,3, MPTEMP, MPTEMP,1,0MPDATA,EX,2,3.2e9 !输入弹性模量（加固圈）MPDATA,PRXY,2,0.32!输入泊松比（加固圈）MPDATA,DENS,2,2200!输入密度（加固圈）TB,DP,2, !采用DP准则TBMODIF,1,1,0.5e6 !输入凝聚力（加固圈）TBMODIF,1,2,35 !输入摩擦角（加固圈）TBMODIF,1,3, MP
4、DATA,EX,3,27.5e9 !输入弹性模量（喷射混凝土）MPDATA,PRXY,3,0.2 !输入泊松比（喷射混凝土）MPDATA,DENS,3,2500 !输入密度（喷射混凝土）SAVE !保存数据库2 建立几何模型创建关键点。K,1,0,0, !创建计算区域轮廓线关键点K,2,65,-22.3,K,3, -65,-22.3,K,4,65,37.1,K,5,19.6,37.1,K,6,-65,-11.8,K,7,-44.6,-22.3,K,8,-44.6,0,K,9,65,0,K,10,15,-22.3,K,11,-15,-22.3,K,12,-15,17.1,K,13,15,34.4
5、,K,14,-15,1.169, !创建隧道轮廓线关键点，上半圆圆心K,15,-18.408,0.22, !左下拱脚圆心K,16,-15.022,7.887, !仰拱圆心K,17,0,25.742, K,18,0,-22.3, K,27,-11.636,0.22, !右下拱脚圆心SAVE !保存数据创建线。Circle,14,5.4 !画上半圆Circle,15,1.9 !画左下拱脚圆Circle,27,1.9 !画右下拱脚圆LDELE,5,6,1 !删除左右下拱脚圆的部分线LDELE,8,11,1 LOVLAP,7,3 !作叠加布尔运算LOVLAP,12,4LDELE,6,10,2LDELE
6、,7LDELE,13,16,3NUMMRG,ALL, , , ,LOW !合并所有元素NUMCMP,ALL !压缩所有编号FLST,2,3,4,ORDE,3 !作加运算FITEM,2,4 FITEM,2,5 FITEM,2,6 LCOMB,P51X, ,0 FLST,2,3,4,ORDE,3 !作加运算FITEM,2,3 FITEM,2,7 FITEM,2,9 LCOMB,P51X, ,0NUMMRG,ALL, , , ,LOW !合并所有元素NUMCMP,ALL !压缩所有编号circle, 16,10.178 !画仰拱圆LOVLAP,3,7 !作叠加布尔运算LOVLAP,4,8LDELE,
7、19 !删除部分线LDELE,5,7,1LDELE,10,11,1LDELE,14,16,2FLST,2,4,4,ORDE,4 !做线加布尔运算FITEM,2,9 FITEM,2,12 FITEM,2,-13 FITEM,2,15 LCOMB,P51X, ,0 FLST,2,4,4,ORDE,4 !做线加布尔运算FITEM,2,3 FITEM,2,17 FITEM,2,-18 FITEM,2,20 LCOMB,P51X, ,0Circle,14,8.9 !画上半圆(加固圈)Circle,15,5.4 !画左下拱脚圆(加固圈)Circle,27,5.4 !画右下拱脚圆(加固圈)ldele,8,1
8、2,2ldele,13,15,1LOVLAP,6,11 !作叠加布尔运算LOVLAP,7,16ldele,10,14,2 !删除部分线ldele,17,19,2ldele,11circle, 16,13.678 !画仰拱圆(加固圈)LOVLAP,11,13 !作叠加布尔运算LOVLAP,12,18ldele,10,11,1 !删除部分线ldele,23,26,3ldele,7,17,10ldele,14,22,8FLST,2,5,4,ORDE,5 !做线加布尔运算FITEM,2,8 FITEM,2,15 FITEM,2,-16 FITEM,2,19 FITEM,2,21 LCOMB,P51X,
9、 ,0 FLST,2,5,4,ORDE,5 !做线加布尔运算FITEM,2,6 FITEM,2,13 FITEM,2,20 FITEM,2,24 FITEM,2,-25 LCOMB,P51X, ,0 FLST,3,8,4,ORDE,4 !对称操作，由左隧道镜像成右隧道。FITEM,3,1 FITEM,3,-6 FITEM,3,8 FITEM,3,-9 LSYMM,X,P51X, , , ,0,0 NUMMRG,ALL, , , ,LOW !合并所有元素NUMCMP,ALL !压缩所有编号SAVE !所画出的隧道轮廓图见图6-7所示。k,56,0,1.169,0, !创建关键点，为画其它直线作准
10、备k,57,30.044,1.169,0,k,58,30.044,-22.3,0,k,59,30.044,37.1,0,k,60,15,1.169,0,LSTR, 3, 7 !画计算区域线和分块线LSTR, 7, 8 LSTR, 8, 6 LSTR, 6, 3 LSTR, 7, 11 LSTR, 11, 18 LSTR, 18, 10 LSTR, 10, 58 LSTR, 58, 2 LSTR, 2, 9 LSTR, 9, 4 LSTR, 4, 59 LSTR, 59, 5 LSTR, 5, 13 LSTR, 13, 17 LSTR, 17, 12 LSTR, 12, 8 LSTR, 21,
11、14 LSTR, 14, 19 LSTR, 14, 20 LSTR, 14, 31 LSTR, 44, 60 LSTR, 60, 46 LSTR, 60, 45 LSTR, 60, 47 LSTR, 45, 53 LSTR, 46, 54 LSTR, 47, 55 LSTR, 44, 52 LSTR, 52, 56 LSTR, 54, 57 LSTR, 57, 59 LSTR, 57, 58 LSTR, 55, 10 LSTR, 56, 17 LSTR, 56, 18 LSTR, 53, 13 LSTR, 19, 32 LSTR, 32, 56 LSTR, 51, 11 LSTR, 33, 12 LSTR, 20, 33 LSTR, 21, 34 LSTR, 34, 8 LSTR, 31, 51 LSTR, 57, 9
