滑坡段隧道三维建模网格划分时的问题，请高手指教

dulibing0622

滑坡段隧道三维建模，由于隧道穿越滑坡段，隧道轴线向下弯曲来绕过坡体影响区，轴线不是规则的直线，我用沿样条曲线拉伸形成隧道的方式，由于规模较大。建模以每步50米，台阶法开挖，上下台阶错开一个台阶。先建好实体模型再划分网格，网格无法用映射扫掠的方式划分。请求指导。
finish
/clear,start
/filename,SAN3  
/prep7  
ET,1,mesh200,6  
et,2,beam3  
et,3,solid45
ET,4,shell43   
KEYOPT,4,5,2
R,1,0.3                    !
R,2,0.05,0.05*0.05*0.05/12,0.05, , , ,  
MP,EX,1,50e6                !   
MP,PRXY,1,0.3             !
MP,DENS,1,1700             !
TB,DP,1,,,  
tbdata,1,24e3,25,0  
MP,EX,2,50e9            
MP,PRXY,2,0.2         
MP,DENS,2,2500  
MP,EX,3,5.24e9           
MP,PRXY,3,0.2   
MP,DENS,3,2100  
TB,DP,3
tbdata,1,1.4.64e6,39,0  
MP,EX,4,5.24e9         
MP,PRXY,4,0.2   
MP,DENS,4,2100  
TB,DP,4
tbdata,1,1.4.64e6,39,0  
MP,EX,5,5.24e9            
MP,PRXY,5,0.2   
MP,DENS,5,2100  
TB,DP,5
tbdata,1,1.4.64e6,39,0  
/prep7  
NUMSTR,KP,1
NUMSTR,LINE,1   
NUMSTR,AREA,1   
NUMSTR,VOLU,1   
CSYS,0  
k, 1  ,2261.997,75.491,.000,
k, 2  ,2171.200,75.854,.000,
l, 1  ,2
k, 3  ,2025.000,107.683,.000,   
l, 2  ,3
k, 4  ,1665.000,137.803,.000,   
l, 3  ,4
k, 5  ,1120.000,220.916,.000,   
l, 4  ,5
k, 6  ,495.000,259.266,.000,
l, 5  ,6
k, 7  ,405.000,280.854,.000,
l, 6  ,7
k, 8  ,285.000,290.559,.000,
l, 7  ,8
k, 9  ,175.000,299.317,.000,
l, 8  ,9
k, 10  ,125.000,313.774,.000,   
l, 9  ,10   
k, 11  ,85.000,318.835,.000,
l, 10  ,11  
k, 12  ,50.000,321.861,.000,
l, 11  ,12  
k, 13  ,.000,346.116,.000,  
l, 12  ,13  
k, 14  ,.000,92.633,.000,   
k, 15  ,266.159,86.112,.000,
k, 16  ,760.000,76.321,.000,
k, 17  ,1208.775,65.373,.000,   
k, 18  ,1695.000,63.498,.000,   
k, 19  ,2025.144,66.720,.000,   
k, 20  ,2143.552,68.761,.000,   
k, 21  ,2261.997,71.486,.000,   
l, 1  ,21   
k, 22  ,2261.997,57.183,.000,   
l, 21  ,22  
k, 23  ,2261.997,.000,.000,
l, 22  ,23  
k, 24  ,.000,.000,.000,
l, 23  ,24  
k, 25  ,.000,78.331,.000,   
l, 24  ,25  
l, 25  ,14  
l, 14  ,13  
k, 26  ,397.660,244.708,.000,   
l, 8  ,26   
k, 27  ,564.160,196.944,.000,   
l, 26  ,27  
k, 28  ,713.688,160.294,.000,   
l, 27  ,28  
k, 29  ,821.536,142.568,.000,   
l, 28  ,29  
k, 30  ,1159.601,121.733,.000,  
l, 29  ,30  
k, 31  ,1357.000,92.883,.000,   
l, 30  ,31  
k, 32  ,1631.000,84.524,.000,   
l, 31  ,32  
k, 33  ,1750.043,83.732,.000,   
l, 32  ,33  
k, 34  ,1881.000,76.461,.000,   
l, 33  ,34  
k, 35  ,2066.617,73.164,.000,   
l, 34  ,35  
l, 35  ,2   
FLST,3,8,3  
FITEM,3,21  
FITEM,3,20  
FITEM,3,19  
FITEM,3,18  
FITEM,3,17  
FITEM,3,16  
FITEM,3,15  
FITEM,3,14  
BSPLIN, ,P51X   


lsel,s,,,1,19,1
al,all  
allsel  
lsel,u,,,1,19,1
asbl,1,all  
nummrg,all  
numcmp,all

Allsel            !
k,1000,,,-126  !
l,24,1000    !
/view,1,1,1,1                !设置为三维模型显示
/replot

asel,s,,,1,3
vDRAG,all,,,,,,32  


k,1999,2261.997 ,71.5,-63

k,1998,2261.997 ,71.5,-55
k,1997,2261.997 ,71.5,-71
k,1995,2261.997 ,57.2,-55
k,1996,2261.997 ,57.2,-71

k,2000,2261.997 ,65,-63


KWPAVE,    2000
CSYS,4  
WPSTYLE,,,,,,,,0
WPSTYL, STAT
wpro,,,90.000000


k, 2001  ,-6.273,.000,.000,
k, 2002  ,6.273,.000,.000,  
l, 2001  ,2002  
k, 2003  ,3.362,-1.573,.000,
k, 2004  ,4.341,-4.048,.000,
k, 2005  ,5.730,-2.789,.000,
k, 2006  ,4.769,-3.833,.000,
LARC,2004  ,2005  ,2006
k, 2007  ,1.000,-.420,.000,
k, 2008  ,6.007,-2.126,.000,
LARC,2005  ,2002  ,2008
k, 2009  ,5.296,2.668,.000,
k, 2010  ,6.168,.711,.000,  
LARC,2002  ,2009  ,2010
k, 2011  ,.000,-.997,.000,  
k, 2012  ,2.203,5.054,.000,
k, 2013  ,4.670,3.437,.000,
LARC,2009  ,2012  ,2013
k, 2014  ,-2.203,5.054,.000,
k, 2015  ,1.118,5.345,.000,
LARC,2012  ,2014  ,2015
k, 2016  ,-5.296,2.668,.000,
k, 2017  ,-3.105,4.645,.000,
LARC,2014  ,2016  ,2017
k, 2018  ,-1.000,-.420,.000,
k, 2019  ,-5.674,2.057,.000,
LARC,2016  ,2001  ,2019
k, 2020  ,-5.730,-2.789,.000,   
k, 2021  ,-6.282,-.718,.000,
LARC,2001  ,2020  ,2021
k, 2022  ,-3.362,-1.573,.000,   
k, 2023  ,-4.341,-4.048,.000,   
k, 2024  ,-5.474,-3.193,.000,   
LARC,2020  ,2023  ,2024
k, 2025  ,.000,7.139,.000,  
k, 2026  ,-2.208,-4.656,.000,   
LARC,2023  ,2004  ,2026

CSYS,0  
allsel,all  
lsel,s,loc,x,2261.997

l,2004,1996     !产生L104
l,2009,1997      !产生L105
l,2016,1998     !产生L106
l,2023,1995      !产生L107
l,1995,1996      !产生L108
l,1996,1997      !产生L109
l,1997,1998      !产生L110
l,1998,1995      !产生L111

ksel,s,,,1995,1998
a,1995,1996,1997,1998























allsel,all
asel,s,area,,38     
VDRAG,all,,,,,,31     
Allsel     

vsbv,1,4
nummrg,all  
numcmp,all

ksel,s,,,69,72
a,69,70,71,72

allsel  
lsel,s,loc,x,2261.997
lsel,r,,,90,104
asbl,45,all  
nummrg,all  
numcmp,all

lsel,s,,,91,100         !选择线
ADRAG,all,,,,,,31                !沿着线31拉伸线

asel,r,,,47
VDRAG,all,,,,,,31

allsel,all
asel,s,,,46
VDRAG,all,,,,,,31

allsel,all
asel,s,,,45
asel,a,,,48,50                  
VDRAG,all,,,,,,31
nummrg,all  
numcmp,all
allsel,all
save,shiti,db

woomii

只有这个体不能映射网格，因为在两端都有不止一个面。要么做成一个凹形的面，要么分成三个体。

wp0903

看来楼主是不是先建立的二维的模型，然后再沿直线扫略生成三维的模型，这样加载的时候是不是不好加载呢？