ansys在公路工程中的應(yīng)用實(shí)例

1、! 確定分析標(biāo)題 !菜單過(guò)濾設(shè)置!保留結(jié)構(gòu)分析部分菜單/COM ， Structural /PREP7 ET,1,PLANE42 KEYOPT,1,1,0 KEYOPT,1,2,0 KEYOPT,1,3,2 KEYOPT,1,5,0 KEYOPT,1,6,0 ET,2,PLANE42 KEYOPT,1,1,0 KEYOPT,1,2,0 KEYOPT,1,3,2 KEYOPT,1,5,0 KEYOPT,1,6,0 ET，3，BEAM3 R,1,0.25,1.5e-3,0.25, , , , MPTEMP, MPTEMP,1,0 MPDA TA,EX,1,0.8e9 MPDA TA,PRXY ,1

2、,0.38 MPDA TA,DENS,1,2000 TB,DP,1, TBMODIF,1,1,0.2e6 TBMODIF,1,2,30 TBMODIF,1,3, MPTEMP, MPTEMP,1,0 MPDA TA,EX,2,3.2e9 MPDA TA,PRXY ,2,0.32!進(jìn)入前處理器 !設(shè)置實(shí)體單元類(lèi)型!設(shè)置為平面應(yīng)變模式!設(shè)置實(shí)體單元類(lèi)型!設(shè)置為平面應(yīng)變模式!設(shè)置梁?jiǎn)卧?lèi)型 !設(shè)置梁?jiǎn)卧獛缀纬?shù)!輸入彈性模量（圍巖）!輸入泊松比（圍巖）!輸入密度（圍巖）!采用 DP 準(zhǔn)則進(jìn)行彈塑性分析!輸入凝聚力（圍巖）!輸入摩擦角（圍巖）!輸入彈性模量（加固圈）!輸入泊松比（加固圈）6.1 施工過(guò)

3、程仿真分 析1材料、實(shí)常數(shù)和單元類(lèi)型定義/TITLE ， Mechanical analysis on railway tunnel 1nd lining /NOPR/PMETH ， OFF， 0KEYW ，PR_SET， 1KEYW ，PR_STRUC ，1/COM ，/COM ，Preferences for GUI filtering have beenset to displayMPDA TA,DENS,2,2200!輸入密度（加固圈）TB,DP,2,!采用 DP 準(zhǔn)則TBMODIF,1,1,0.5e6!輸入凝聚力（加固圈）TBMODIF,1,2,35!輸入摩擦角（加固圈）TBMODI

4、F,1,3,MPDA TA,EX,3,27.5e9!輸入彈性模量（噴射混凝土）MPDA TA,PRXY ,3,0.2!輸入泊松比（噴射混凝土）MPDA TA,DENS,3,2500!輸入密度（噴射混凝土）SAVE!保存數(shù)據(jù)庫(kù)2建立幾何模型創(chuàng)建關(guān)鍵點(diǎn)。K,1,0,0, ! 創(chuàng)建計(jì)算區(qū)域輪廓線關(guān)鍵點(diǎn)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

5、,15,34.4,K,14,-15,1.169,!創(chuàng)建隧道輪廓線關(guān)鍵點(diǎn)，上半圓圓心K,15,-18.408,0.22,!左下拱腳圓心K,16,-15.022,7.887,!仰拱圓心K,17,0,25.742,K,18,0,-22.3,K,27,-11.636,0.22,!右下拱腳圓心SAVE!保存數(shù)據(jù)創(chuàng)建線。Circle,14,5.4!畫(huà)上半圓Circle,15,1.9!畫(huà)左下拱腳圓Circle,27,1.9!畫(huà)右下拱腳圓LDELE,5,6,1!刪除左右下拱腳圓的部分線LDELE,8,11,1LOVLAP,7,3!作疊加布爾運(yùn)算LOVLAP,12,4LDELE,6,10,2LDELE,7LDE

6、LE,13,16,3NUMMRG,ALL, , , ,LOW!合并所有元素NUMCMP,ALLFLST,2,3,4,ORDE,3FITEM,2,4FITEM,2,5FITEM,2,6LCOMB,P51X, ,0FLST,2,3,4,ORDE,3FITEM,2,3FITEM,2,7FITEM,2,9LCOMB,P51X, ,0 NUMMRG,ALL, , , ,LOW NUMCMP,ALL circle, 16,10.178LOVLAP,3,7LOVLAP,4,8LDELE,19LDELE,5,7,1LDELE,10,11,1LDELE,14,16,2FLST,2,4,4,ORDE,4FITEM

7、,2,9FITEM,2,12FITEM,2,-13FITEM,2,15LCOMB,P51X, ,0FLST,2,4,4,ORDE,4FITEM,2,3FITEM,2,17FITEM,2,-18FITEM,2,20LCOMB,P51X, ,0Circle,14,8.9Circle,15,5.4Circle,27,5.4 ldele,8,12,2 ldele,13,15,1LOVLAP,6,11LOVLAP,7,16 ldele,10,14,2 ldele,17,19,2 ldele,11 circle, 16,13.678 LOVLAP,11,13!壓縮所有編號(hào)!作加運(yùn)算!作加運(yùn)算!合并所有元素

8、!壓縮所有編號(hào)!畫(huà)仰拱圓 !作疊加布爾運(yùn)算!刪除部分線!做線加布爾運(yùn)算!做線加布爾運(yùn)算!畫(huà)上半圓 （加固圈 ）!畫(huà)左下拱腳圓 （加固圈 ）!畫(huà)右下拱腳圓 （加固圈 ）!作疊加布爾運(yùn)算!刪除部分線!畫(huà)仰拱圓 （加固圈 ）!作疊加布爾運(yùn)算LOVLAP,12,18ldele,10,11,1 ldele,23,26,3 ldele,7,17,10 ldele,14,22,8 FLST,2,5,4,ORDE,5 FITEM,2,8 FITEM,2,15 FITEM,2,-16 FITEM,2,19 FITEM,2,21 LCOMB,P51X, ,0 FLST,2,5,4,ORDE,5 FITEM,2,6

9、 FITEM,2,13 FITEM,2,20 FITEM,2,24 FITEM,2,-25 LCOMB,P51X, ,0 FLST,3,8,4,ORDE,4 FITEM,3,1 FITEM,3,-6 FITEM,3,8 FITEM,3,-9 LSYMM,X,P51X, ,0,0NUMMRG,ALL, , ,LOWNUMCMP,ALLSAVE k,56,0,1.169,0, 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, 3,7LSTR, 7,8LSTR, 8,6LSTR,

10、6,3LSTR, 7,11LSTR, 11,18LSTR, 18,10LSTR, 10,58LSTR, 58,2LSTR, 2,9LSTR, 9,4LSTR, 4,59!刪除部分線!做線加布爾運(yùn)算!做線加布爾運(yùn)算!對(duì)稱操作，由左隧道鏡像成右隧道。!合并所有元素!壓縮所有編號(hào)!所畫(huà)出的隧道輪廓圖見(jiàn)圖 6-7 所示。!創(chuàng)建關(guān)鍵點(diǎn)，為畫(huà)其它直線作準(zhǔn)備!畫(huà)計(jì)算區(qū)域線和分塊線LSTR,59,5LSTR,5,13LSTR,13,17LSTR,17,12LSTR,12,8LSTR,21,14LSTR,14,19LSTR,14,20LSTR,14,31LSTR,44,60LSTR,60,46LSTR,60,4

11、5LSTR,60,47LSTR,45,53LSTR,46,54LSTR,47,55LSTR,44,52LSTR,52,56LSTR,54,57LSTR,57,59LSTR,57,58LSTR,55,10LSTR,56,17LSTR,56,18LSTR,53,13LSTR,19,32LSTR,32,56LSTR,51,11LSTR,33,12LSTR,20,33LSTR,21,34LSTR,34,8LSTR,31,51LSTR,57,9/PNUM,KP,0! 不顯示關(guān)鍵點(diǎn)編號(hào)/PNUM,LINE,1! 顯示線編號(hào)/PNUM,AREA,0! 不顯示面編號(hào)/PNUM,VOLU,0!不顯示體編號(hào)/PN

12、UM,NODE,0!不顯示節(jié)點(diǎn)編號(hào)!*/PNUM,ELEM,0! 不顯示單元編號(hào)/REPLOT!重新繪制!*LPLOT! 繪制線圖，帶編號(hào)，如圖 6-8 所示。SAVE!保存數(shù)據(jù)庫(kù)4倍LESIZE,_Y1, ,8, ,1 lesize,1,8,1 TYPE,1MA T,1REAL,1/PNUM,LINE,1 LPLOTAl,35,1,36,!采用線創(chuàng)建面，依次創(chuàng)建 27 個(gè)面Al,36,2,34,Al,34,9,37,Al,37,3,35,!左隧道內(nèi)核心土4 個(gè)面繪制完成Al,54,4,58,1,Al,58,5,59,2,Al,59,8,61,9,Al,61,6,54,3,!左隧道加固圈土4

13、個(gè)面繪制完成Al,39,10,40,Al,40,7,38,Al,38,11,41,Al,41,16,39,!右隧道內(nèi)核心土4 個(gè)面繪制完成Al,43,13,42,10,Al,42,12,45,7,Al,45,14,44,11,Al,44,15,43,16,!右隧道加固圈土4 個(gè)面繪制完成Al,55,51,32,57,4,Al,57,33,60,5,Al,60,18,21,56,8,Al,56,22,52,55,6,!左隧道外圍土體 4 個(gè)面繪制完成Al,47,48,29,30,53,13,Al,53,31,51,46,12,Al,46,52,23,50,14,Al,50,24,49,47,15

14、, !右隧道外圍土體 4 個(gè)面繪制完成Al,18,19,20,17,!左側(cè)邊境1 個(gè)面繪制完成Al,49,25,26,62,Al,62,27,28,48,!右側(cè)邊境2 個(gè)面繪制完成創(chuàng)建面。本次的計(jì)算區(qū)域?yàn)闄M向左右雙線隧道總跨度，下部邊界為130m，豎向?yàn)?0m，即左右兩側(cè)計(jì)算邊界為2 倍隧道總高度。/PNUM,KP,0/PNUM,LINE,0/PNUM,AREA,1APLOT!繪制帶編號(hào)的面 , 生成的面如圖 6-9 所示。SAVE! 保存數(shù)據(jù) ,3創(chuàng)建網(wǎng)格模型設(shè)置線被劃分的單元數(shù)。!設(shè)置單元大小 , 即 L1 線劃分成 8 個(gè)單元 !設(shè)置將要?jiǎng)?chuàng)建單元的類(lèi)型 !設(shè)置將要?jiǎng)?chuàng)建單元的材料 !設(shè)置將

15、要?jiǎng)?chuàng)建單元的幾何常數(shù) !顯示線編號(hào)! 繪制線圖，帶編號(hào)和單元數(shù)。Save!按照“ lesize,1,8,1 ”格式，將其他61條線也進(jìn)行被劃分單元數(shù)設(shè)置，其線的編號(hào)和被劃分的單元數(shù)如表6-3所示，劃分好后如圖6-10所示。表6-1設(shè)置線單元數(shù)NL(NDIV)NL(NDIV)NL(NDIV)NL(NDIV)NL(NDIV)3583985445545143684085845743243483885946042243784186145645241878434474184281084245342149811845446420438168444504194481283143011745813826429

16、22446814825104854948815862102752810338234將所有面劃分單元，其單元圖如圖 6-11所示。AMAP,1,14,19,20,AMAP,2,14,20,21,AMAP,3,14,21,31,AMAP,4,14,31,19,AMAP,9,60,46,45,AMAP,10,60,45,44,AMAP,11,60,44,47,AMAP,12,60,47,46,AMAP,7,21,34,51,31AMAP,8,31,51,32,19AMAP,15,44,52,55,47AMAP,16,47,55,54,46TYPE, 1MAT,2AMAP,5,19,32,33,20A

17、MAP,6,20,33,34,21AMAP,13,46,54,53,45AMAP,14,45,53,52,44TYPE, 1MAT,1AMAP,17,32,56,12,33AMAP,18,33,12,8,34AMAP,19,34,8,11,51AMAP,20,51,11,56,32!劃分面1,依次單擊關(guān)鍵點(diǎn)14、19、20進(jìn)行映射劃分!面1到4,為左隧道內(nèi)開(kāi)挖土體!面9到12，為右隧道內(nèi)開(kāi)挖土體!面 7和8，為左隧道仰拱下土體!面 15和16,為右隧道仰拱下土體!轉(zhuǎn)換為加固圈土體單元類(lèi)型和材料!劃分左隧道加固圈土體!劃分右隧道加固圈土體!轉(zhuǎn)換為普通土體單元類(lèi)型和材料!劃分左隧道周邊區(qū)域面AMA

18、P,22,53,13,56,52AMAP,23,52,56,10,55AMAP,24,55,10,57,54AMAP,25,7,8,6,3AMAP,26,58,2,9,57AMAP,27,57,9,4,59SAVE!劃分左隧道邊界面!劃分左隧道邊界面!保存數(shù)據(jù)，本次共劃分成 1002 個(gè)四邊形單元?jiǎng)?chuàng)建模擬噴射混凝土的梁?jiǎn)卧?設(shè)置將要?jiǎng)?chuàng)建單元的類(lèi)型!設(shè)置將要?jiǎng)?chuàng)建單元的材料 !設(shè)置將要?jiǎng)?chuàng)建單元的幾何常數(shù)!通過(guò)兩個(gè)節(jié)點(diǎn)創(chuàng)建梁?jiǎn)卧?以上梁?jiǎn)卧獮樽笏淼绹娚浠炷敛糠?保存數(shù)據(jù)TYPE,2MA T,3REAL, 1E,2,11E,11,12E,12,13E,13,14E,14,15E,15,16E,16

19、,17E,17,10E,10,63E,63,64E,64,65E,65,66E,66,67E,67,68E,68,69E,69,62E,62,122E,122,123E,123,124E,124,125E,125,126E,126,127E,127,128E,128,114E,114,172E,172,171E,171,170E,170,169E,169,168E,168,167E,167,166E,166,2SaveE,211,226E,226,225E,225,224E,224,223E,223,222E,222,221E,221,220E,220,219E,219,278E,278,27

20、7E,277,276E,276,275E,275,274E,274,273E,273,272E,272,271E,271,331E,331,332E,332,333E,333,334E,334,335E,335,336E,336,337E,337,323E,323,318E,323,381E,381,380E,380,379E,379,378E,378,377E,377,376E,376,375E,375,211! 以上梁?jiǎn)卧獮橛宜淼绹娚浠炷敛糠諷AVE! 保存數(shù)據(jù)創(chuàng)建 CRD 開(kāi)挖中模擬臨時(shí)支撐的梁?jiǎn)卧?，如圖 6-12 所示。TYPE,2!設(shè)置將要?jiǎng)?chuàng)建單元的類(lèi)型MAT,3!設(shè)置將要?jiǎng)?chuàng)建單元

21、的材料REAL,1!設(shè)置將要?jiǎng)?chuàng)建單元的幾何常數(shù)E,1 ,18E,18,19E,19,20E,20,21E,21,22E,22,23E,23,24!通過(guò)兩個(gè)節(jié)點(diǎn)創(chuàng)建梁?jiǎn)卧狤,24,10E,1,76E,76,75E,75,74E,74,73E,73,72E,72,71E,71,70E,70,62E,1,115E,115,116E,116,117E,117,118E,118,119E,119,120E,120,121E,121,114E,1,3E,3,4E,4,5E,5,6E,6,7E,7,8E,8,9E,9,2Save!以上梁?jiǎn)卧獮樽笏淼琅R時(shí)支撐噴射混凝土部分!保存數(shù)據(jù)E,210,227E,227

22、,228E,228,229E,229,230E,230,231E,231,232E,232,233E,233,219E,210,285E,285,284E,284,283E,283,282E,282,281E,281,280E,280,279E,279,271E,210,324E,324,325E,325,326E,326,327E,327,328E,328,329E,329,330E,330,323E,210,212E, 212,213E,213,214E,214,215E,215,216E,216,217E,217,218E,218,211128 個(gè)梁?jiǎn)卧inish!返回上級(jí)目錄SAV

23、E!保存數(shù)據(jù)以上梁?jiǎn)卧獮橛宜淼琅R時(shí)支撐噴射混凝土部分，共6.1.2加載與自重應(yīng)力場(chǎng)求解/SOLNSEL,S,LOC,X,-65.1,-64.9NSEL,A,LOC,X,64.9,65.1d,all,ux,0Allsel!進(jìn)入求解器! 在選擇的節(jié)點(diǎn)上施加“ Ux ”約束 !選擇所有內(nèi)容NSEL,S,LOC,Y ,-22.5,-22.1d,all,uy,0ACEL, 0, 10, 0,SAVENROPT, FULL, ,AllselESEL,S,TYPE,2Ekill,allAllselSolveFinishSAVE! 在選擇的節(jié)點(diǎn)上施加“ Uy ”約束! 在 Y 方向施加重力加速度! 施加了位移

24、約束和自重應(yīng)力場(chǎng)后見(jiàn)圖 6-13 所示。 !采用全牛頓拉普森法進(jìn)行求解!選擇所有內(nèi)容!選擇 2 類(lèi)單元!對(duì)選擇的單元給予“死屬性”!選擇所有內(nèi)容!求解計(jì)算!求解結(jié)束返回 Main Menu 主菜單豎向位移( PLNSOL,U,Y ,0,1)和應(yīng)力( PLNSOL,S,Y ,0,1)如圖 6-14 和圖 6-15 所 示。6.1.3先左洞后右洞開(kāi)挖模擬分析1左洞左上部分土體開(kāi)挖施工模擬分析開(kāi)挖土體。/post1Finish!求解結(jié)束返回 Main Menu 主菜單/SOL!進(jìn)入求解器Allsel!選擇所有內(nèi)容ANTYPE,REST,1,13,0!重新啟動(dòng)求解器ASEL,S, , , 2!選擇左洞

25、左上部分土體面ESLA,R!選擇左洞左上部分土體單元Ekill,all!對(duì)選擇的單元給予“死屬性”Save進(jìn)行噴錨支護(hù)，即激活噴射混凝土襯砌梁?jiǎn)卧团R時(shí)支撐單元。Allsel!選擇所有內(nèi)容ESEL,S,TYPE,2!選擇 2 類(lèi)單元Ekill,all!對(duì)選擇的單元給予“死屬性”Allsel!選擇所有內(nèi)容lsel,s,2,!選擇梁?jiǎn)卧诘木€lsel,a,34,36,2,NSLL,R,1!選擇線上的節(jié)點(diǎn)ESLN,R,1!選擇節(jié)點(diǎn)上的單元ESEL,R,TYPE,2!選擇 2 類(lèi)單元Ealive,all!對(duì)選擇的單元給予“生屬性”Save節(jié)點(diǎn)力計(jì)算。FINISH/POST1!進(jìn)入后處理器Allsel

26、!選擇所有內(nèi)容ESEL,S, , ,!人工手動(dòng)選擇開(kāi)挖土體周?chē)囊蝗卧獔DNFORCE,ALL!對(duì)選擇的節(jié)點(diǎn)求解節(jié)點(diǎn)力SaveFINISH/sol!進(jìn)入求解理器節(jié)點(diǎn)力施加，加上節(jié)點(diǎn)力和位移邊界條件后的模型如圖 6-17 所示。6-16 所示f,1,fx,4.37E-09!施加 X 方向集中力f,1,fx,-0.4743E+05!施加 Y 方向集中力f,1,fy,0.9367E+05f,10,fx,-0.4789E+05f,10,fy,-0.1099E+06f,18,fx,-0.1116E+06f,18,fy,-0.2069E+05f,19,fx,-0.1041E+06f,19,fy,-0.20

27、41E+05f,20,fx,-0.9727E+05f,20,fy,-0.2031E+05f,21,fx,-0.9131E+05f,21,fy,-0.2034E+05f,22,fx,-0.8623E+05f,22,fy,-0.2040E+05f,23,fx,-0.8191E+05f,23,fy,-0.2042E+05f,24,fx,-0.7817E+05f,24,fy,-0.2032E+05f,62,fx,0.7342E+05f,62,fy,0.6471E+05f,63,fx,-5701f,63,fy,-0.1873E+06f,64,fx,0.2051E+05f,64,fy,-0.1652E+0

28、6f,65,fx,0.4760E+05f,65,fy,-0.1410E+06f,66,fx,0.7627E+05f,66,fy,-0.1149E+06f,67,fx,0.1060E+06f,67,fy,-0.8668E+05f,68,fx,0.1340E+06f,68,fy,-0.5737E+05f,69,fx,0.1507E+06f,69,fy,-0.2829E+05f,70,fx,0.1678E+05f,70,fy,0.1740E+06f,71,fx,0.1940E+05f,71,fy,0.1803E+06f,72,fx,0.2109E+05f,72,fy,0.1853E+06f,73,f

29、x,0.2143E+05f,73,fy,0.1903E+06f,74,fx,0.2161E+05f,74,fy,0.1953E+06f,75,fx,0.2150E+05f,75,fy,0.2002E+06f,76,fx,0.2133E+05f,76,fy,0.2051E+06求解計(jì)算。Allsel!選擇所有內(nèi)容Solve!求解計(jì)算Finish!求解結(jié)束返回SAVE后處理，兩個(gè)方向的應(yīng)力和位移，如圖Main Menu 主菜單6-18圖6-21所示。/post1PLNSOL,U,X,0,1! X 方向位移PLNSOL,U,Y ,0,1! Y 方向位移PLNSOL,S,X,0,1!X 方向應(yīng)力PLN

30、SOL,S,Y ,0,1!Y 方向應(yīng)力Finish! 求解結(jié)束返回 Main Menu 主菜單SAVE計(jì)算下一步開(kāi)挖計(jì)算所施加的節(jié)點(diǎn)力，如圖6-22 所示。ESEL,S, , ,!人工手動(dòng)選擇開(kāi)挖土體周?chē)囊蝗卧狽FORCE,ALL!對(duì)選擇的節(jié)點(diǎn)求解節(jié)點(diǎn)力FINISH!求解結(jié)束返回 Main Menu 主菜單Save2左洞左下部分土體開(kāi)挖施工模擬分析開(kāi)挖土體。/SOL!進(jìn)入求解器Allsel!選擇所有內(nèi)容ANTYPE,REST,2,13,0!重新啟動(dòng)求解器ASEL,S, , ,2,3,1!選擇左洞左上和左下部分土體面ESLA,R!選擇左洞左上和左下部分土體單元Ekill,all!對(duì)選擇的單元

31、給予“死屬性”Save進(jìn)行噴錨支護(hù)，即激活噴射混凝土襯砌梁?jiǎn)卧团R時(shí)支撐單元。Allsel!選擇所有內(nèi)容ESEL,S,TYPE,2!選擇 2 類(lèi)單元Ekill,all!對(duì)選擇的單元給予“死屬性”Allsel!選擇所有內(nèi)容lsel,s,2,9,7,!選擇梁?jiǎn)卧诘木€lsel,a,36,37,1,NSLL,R,1!選擇線上的節(jié)點(diǎn)ESLN,R,1!選擇節(jié)點(diǎn)上的單元ESEL,R,TYPE,2!選擇 2 類(lèi)單元Ealive,all!對(duì)選擇的單元給予“生屬性”Save節(jié)點(diǎn)力施加，加上節(jié)點(diǎn)力和位移邊界條件后的模型如圖6-23 所示。f,1,fx,-0.7585E+05!施加 X 方向集中力f,1,fy,0

32、.5203E+05!施加 Y 方向集中力f,62,fx,0.7840E+05f,62,fy,219.8f,114,fx,0.1589E+05f,114,fy,0.1046E+06f,115,fx,-0.8960E+05f,115,fy,-0.5690E+05f,116,fx,-0.5327E+05f,116,fy,-0.6903E+05f,117,fx,-0.5832E+05f,117,fy,-0.7317E+05f,118,fx,-0.6716E+05f,118,fy,-0.7179E+05f,119,fx,-0.7668E+05f,119,fy,-0.6813E+05f,120,fx,-0

33、.8512E+05f,120,fy,-0.6344E+05f,121,fx,-0.9239E+05f,121,fy,-0.5821E+05f,122,fx,0.8784E+05f,122,fy,-0.7074E+05f,123,fx,0.3195E+05f,123,fy,4682f,124,fx,0.1113E+05f,124,fy,0.5868E+05f,125,fx,0.3296E+05f,125,fy,0.6390E+05f,126,fx,0.8549E+05f,126,fy,0.8524E+05f,127,fx,0.1220E+06f,127,fy,0.1426E+06f,128,fx

34、,0.1310E+06f,128 ,fy, 求解計(jì)算。0.2152E+06AllselSolveFinishSAVE!選擇所有內(nèi)容!求解計(jì)算Main Menu 主菜單!求解結(jié)束返回后處理，兩個(gè)方向的應(yīng)力和位移，如圖6-24圖6-27所示。/post1PLNSOL,U,X,0,1PLNSOL,U,Y ,0,1PLNSOL,S,X,0,1PLNSOL,S,Y ,0,1 Finish!X 方向位移!Y 方向位移!X 方向應(yīng)力!Y 方向應(yīng)力! 求解結(jié)束返回 Main Menu 主菜單SAVE 計(jì)算下一步開(kāi)挖計(jì)算所施加的節(jié)點(diǎn)力，如圖 6-28 所示。ESEL,S, , , NFORCE,ALL FINI

35、SHSave!人工手動(dòng)選擇開(kāi)挖土體周?chē)囊蝗卧? 對(duì)選擇的節(jié)點(diǎn)求解節(jié)點(diǎn)力3左洞右上部分土體開(kāi)挖施工模擬分析開(kāi)挖土體。Allsel!選擇所有內(nèi)容ANTYPE,REST,3,19,0!重新啟動(dòng)求解器ASEL,S, , , 1,3,1!選擇左洞左上、左下和右上部分土體面ESLA,R!選擇左洞左上、左下和右上部分土體單元Ekill,all!對(duì)選擇的單元給予“死屬性”Save進(jìn)行噴錨支護(hù)，即激活噴射混凝土襯砌梁?jiǎn)卧团R時(shí)支撐單元。Allsel!選擇所有內(nèi)容ESEL,S,TYPE,2!選擇 2 類(lèi)單元Ekill,all!對(duì)選擇的單元給予“死屬性”Allsel!選擇所有內(nèi)容lsel,s,1,2,1,!選

36、擇梁?jiǎn)卧诘木€lsel,a,35,37,2,lsel,a,9,NSLL,R,1!選擇線上的節(jié)點(diǎn)ESLN,R,1!選擇節(jié)點(diǎn)上的單元ESEL,R,TYPE,2! 選擇 2 類(lèi)單元Ealive,all!對(duì)選擇的單元給予“生屬性”Save節(jié)點(diǎn)力施加，加上節(jié)點(diǎn)力和位移邊界條件后的模型如圖 6-29 所示。f,1,fx,8888!施加 X 方向集中力f,1,fy,0.1627E+05!施加 Y 方向集中力f,2,fx,-0.3130E+05f,2,fy,0.4226E+05f,3,fx,-4424f,3,fy,0.2071E+05f,4,fx,0.1028E+05f,4,fy,0.2229E+05f,5

37、,fx,0.2226E+05f,5,fy,0.2401E+05f,6,fx,0.2950E+05f,6,fy,0.2507E+05f,7,fx,0.3382E+05f,7,fy,0.2565E+05f,8,fx,0.3839E+05f,8,fy,0.2614E+05f,9,fx,0.4493E+05f,9,fy,0.2697E+05f,10,fx,-0.1884E+05f,10,fy,-0.2575E+06f,11,fx,-5824f,11,fy,-0.1401E+06f,12,fx,-0.1110E+05f,12,fy,-0.1420E+06f,13,fx,-0.2394E+05f,13,f

38、y,-0.1375E+06f,14,fx,-0.3887E+05f,14,fy,-0.1272E+06f,15,fx,-0.5173E+05f,15,fy,-0.1123E+06f,16,fx,-0.6407E+05f,16,fy,-0.9350E+05f,17,fx,-0.6281E+05f,17 ,fy, 求解計(jì)算。-0.1098E+06Allsel Solve Fi nish SAVE!選擇所有內(nèi)容!求解計(jì)算Ma in Me nu主菜單!求解結(jié)束返回后處理，兩個(gè)方向的應(yīng)力和位移，如圖6-30圖6-33所示。/postl PLNSOL,U,X,0,1 PLNSOL,U,Y ,0,1 PLN

39、SOL,S,X,0,1 PLNSOL,S,Y,0,1 Fin ish!X方向位移! Y方向位移! X方向應(yīng)力! Y方向應(yīng)力!求解結(jié)束返回Main Menu主菜單SAVE(6)計(jì)算下一步開(kāi)挖計(jì)算所施加的節(jié)點(diǎn)力，如圖6-34所示。ESEL,S, , ,!人工手動(dòng)選擇開(kāi)挖土體周?chē)囊蝗卧?。NFORCE,ALL!對(duì)選擇的節(jié)點(diǎn)求解節(jié)點(diǎn)力FINISHSave4.左洞右下部分土體開(kāi)挖施工模擬分析(1)開(kāi)挖土體。/SOL!進(jìn)入求解器Allsel!選擇所有內(nèi)容ANTYPE,REST,4,13,0 ASEL,S, , ,1,4,1ESLA,REkill,allSave!重新啟動(dòng)求解器!選擇左洞全部核心土體面!選

40、擇左洞全部核心土體單元!對(duì)選擇的單元給予“死屬性”、第二部分 這是重復(fù)提示：在開(kāi)挖左隧道右下部分土體時(shí)，同樣要進(jìn)行第一部分(左上)(左下)和第三部分(右上)上所有單元的殺死、梁?jiǎn)卧募せ畈僮? 的，但重新啟動(dòng)后必須進(jìn)行。(2)進(jìn)行噴錨支護(hù)，即激活噴射混凝土襯砌梁?jiǎn)卧团R時(shí)支撐單元。6-35 所示。!繪制變形圖 ! X 方向位移 ! Y 方向位移 ! X 方向應(yīng)力 ! Y 方向應(yīng)力 !第一主應(yīng)力ESEL,S,TYPE,2!選擇 2 類(lèi)單元Ekill,all!對(duì)選擇的單元給予“死屬性Allsel!選擇所有內(nèi)容lsel,s,1,2,1,!選擇梁?jiǎn)卧诘木€lsel,a,3,9,6,NSLL,R,1!

41、選擇線上的節(jié)點(diǎn)ESLN,R,1!選擇節(jié)點(diǎn)上的單元ESEL,R,TYPE,2!選擇 2 類(lèi)單元Ealive,all!對(duì)選擇的單元給予“生屬性Save3）節(jié)點(diǎn)力施加，加上節(jié)點(diǎn)力和位移邊界條件后的模型如圖f,2,fx,-0.3948E+05!施加 X 方向集f,2,fy,-0.1837E+05!施加 Y 方向集f,114,fx,-0.5205E+05f,114,fy,0.2791E+06f,166,fx,-0.7718E+05f,166,fy,0.6841E+05f,167,fx,-0.3975E+05f,167,fy,0.6883E+05f,168,fx,-0.1029E+06f,168,fy,0

42、.1820E+06f,169,fx,-0.1153E+06f,169,fy,0.1805E+06f,170,fx,-0.9114E+05f,170,fy,0.1538E+06f,171,fx,-0.7583E+05f,171,fy,0.1488E+06f,172,fx,-0.7772E+05f,172,fy,0.1858E+06( 4)求解計(jì)算。Allsel!選擇所有內(nèi)容Solve!求解計(jì)算Finish!求解結(jié)束返回SAVEMain Menu 主菜單(5)后處理，兩個(gè)方向的應(yīng)力和位移，如圖6-36圖6-42所示。內(nèi)力和變形如圖6-43圖6-47所示。/post1 PLDISP,1 PLNSOL

43、,U,X,0,1 PLNSOL,U,Y ,0,1 PLNSOL,S,X,0,1 PLNSOL,S,Y ,0,1 PLNSOL,S,1,0,1PLNSOL,S,3,0,1 PLNSOL,EPPL,EQV ,0,1 ETABLE, ,SMISC,1 ETABLE, ,SMISC, 7 ETABLE, ,SMISC, 2 ETABLE, ,SMISC,8 ETABLE, ,SMISC,6 ETABLE, ,SMISC,12 ESEL,S,LIVE ESEL,R,TYPE,2 /REPLOT PLLS,SMIS1,SMIS7,0.2,0 PLLS,SMIS2,SMIS8,0.2,0 PLLS,SMIS

44、6,SMIS12,-0.2,0 SET,LIST LCDEF,1,1,13, LCDEF,5,5,13, LCASE,5, LCOPER,SUB,1, , ,!第三主應(yīng)力!塑性應(yīng)變!創(chuàng)建梁?jiǎn)卧獌?nèi)力表!選擇“屬性為活”的單元 !選擇單元類(lèi)型為 2 的所有單元 !從新繪制圖形 !畫(huà)軸力圖，顯示比例為 0.2 !畫(huà)剪力圖，顯示比例為 0.2 !畫(huà)彎矩圖，顯示比例為 -0.2 !設(shè)置計(jì)算步驟!將第四步的結(jié)果減去第一部（自重應(yīng)力場(chǎng)）的結(jié)果PLDISP,1! 畫(huà)變形噴射混凝土的圖Finish! 求解結(jié)束返回 Main Menu 主菜單SAVE（ 6）計(jì)算下一步開(kāi)挖計(jì)算所施加的節(jié)點(diǎn)力，如圖 6-48所示 。

45、ESEL,S, , ,!人工手動(dòng)選擇開(kāi)挖土體周?chē)囊蝗卧?。NFORCE,ALL!對(duì)選擇的節(jié)點(diǎn)求解節(jié)點(diǎn)力FINISH Save5右洞左上部分土體開(kāi)挖施工模擬分析/post1Finish /SOL1）開(kāi)挖土體。!求解結(jié)束返回 Main Menu 主菜單!進(jìn)入求解器AllselANTYPE,REST,5,13,0ASEL,S, , ,1,4,1ASEL,a, , ,10ESLA,R!重新啟動(dòng)求解器!選擇左洞全部土體面!選擇右洞左上部分土體面!選擇左洞全部和右洞左上部分土體單元Ekill,all !對(duì)選擇的單元給予“死屬性” Save（2）進(jìn)行噴錨支護(hù)，即激活噴射混凝土襯砌梁?jiǎn)卧团R時(shí)支撐單元。Allsel!選擇所有內(nèi)容ESEL,S,TYPE,2!選擇 2 類(lèi)單元Ekill,all!對(duì)選擇的單元給予“死屬性”Allsel!選擇所有內(nèi)容lsel,s,1,2,1,!選擇左隧道梁?jiǎn)卧诘木€lsel,a,3,9,6,lsel,a,7!選擇右隧道左上部分梁?jiǎn)卧诘木€lsel,a,38,40,2,NSLL