地下开采与露天开采总论.pdf

“ “ “ “ “ ““6ABC* D23“EFGHIGJK4L“.MNO/ *,-./012345 “PQ* RSG4TUVWXYZ[UV\]S/74TS_‘* “a bcdRe“fWg“fhijkl mnkGopqrstuv0wmxy4T fz _7XYZ[S_‘* “{h4|}4T“m* hTWk7A BCz GDE* F89GHIJKL/NMN/ O4|E“*,yf* PQRXYZ[ST* A’D}UVWXZ[ 0YZ23[“*,-8d“.//4x/01;/“ra2VC/AsH-}.XJ/09/ .“ M13{5“.h2SW3X}5Z].3j4* L5Mm61 m/m “23456,-. 3/um“.]7M1nqdr V “.}SG58T*T/ “V N“.2S4* JV’Gm-G53*89/ “rM13L;“* vgOA* BC45D6“UmE “/ ’G3{G“.hSWiF“5GEd’G“.3T/G“. 54|j]H7F’G/“.’G4Lk|“IJ{*/ K3Sh N3M* I6MCN./0 xvOPK_QmRS/nlh6- GK3“* TF-/ * SS3f{“rUJWVWSI3/Ig“rXYxseb|h 2G/“r-GSS3“l “.l Z[U\s“]|vGM3 45/ “fTox[P u3STkox/ “ “fxf{“fkvg5vdjwDxy[STxy/‘48dwD mm “;’M3* {|FqW G““*mIwmH/* -0TM** h./0 xk“6umG}* w Fe23“ Uz “rE L1G2EQ’* {|Fq\H/* G3,92* G“mIS\*/Ge* YGs X]23“w3lc Uz “ l “f34\.* 23\’C-.2l “/2l 12v,N* “fgqr9 n\;pqdn Uz * V / I * ghN[6bX _u3z“_NhIu3z_6l *u3z_6u3z _“fwDrstxz ,_u3Nxz -_“fox _iz _.kl _“jEQoUdIIGrij* Pijj6;‘ ,/I7ij6g,Aij6d}/* a Vkv5vH}6;kl UV lUV “fpq4[vqrefqzU 5* ““kv5v/EN“9jb’x\3* L“45mI * J“5vkv/ Y{N* hd.ijEw“fj* dd|hh-0 xy* 8\*l 34\ .As6}Am\dvYZ}/hIb5* /“fj6;L.BC* 45“,0aPHICJj6* hj kl ijkVW./5‘p* m./A* AV““,oNZWv4} ,/ mm “;JK} U*l /7 p7d“Mui3“}/ “ d{h“iAk“1g* DE}3“/I FRec“l W4Xb2/ 01c“* {“ArSKUmL“.D“f}Iy5O]0/* { “.c“4eNu3pq4MNd5678 “/ 54M “6YxO“6SZ.{*/_ijeqW“mn}./ * “6YxVo6l *W/7.v3AsIYx/ 6;/.BwD5kxy/f. O’PQ* \VW5ktx-f01* ]ef “ U“ V U “V “,’ “i,J U“* T3* o/’V“Bl Al lAs6“iJK]F3/Gwvf}D* Nd’_‘“JK 6/0A* V“JKWMuivf}YmdH“6Wwgl]F BC/ “ 3JUNvf,C“,]0YZ3Wx]3* E[\h60,-k vfhT]“M3* n_45“mA5kWi5BID/H“6 * Yy-NBC“Um* “F}XYW* \\UNxyOPGWfG ST* “YzHb* A{}vf,C}.JUN/ “ \\UN“6YxUN6YxbT“Z“6Zx* \*| mW55mWt5‘a* dkpqUV“s9,36}Mu’}* 9“dShR;‘YFG* \‘23;jl S** Nd.W|9f* “{*“,* d 8A*BG* CanoI5/ “ jl 84“iY8“F“iI.* Yh66 M4* s}iB1b/ C/ BIJKLJK6GC ‘* gh“zHXY\\ij* F}“,gC{“,djl 3W“,g4U} mm 72345;ef 4W“,djDxVJK,-GI]F“/_* G}“,* J F-W,]0}/ 2“,2]F]07Ml RyW“* PDk5\\5‘;v“* sY8uj/Y8uj26}.\I7]F ]0* f\*Aco;“4cd* C]FAVtu* {}_TO/ kJK* h2“E0h}* A4Ld}* ]hijWjka mm “;RR ’IU0* 2“NZ,YNKr* YLumRu.* Ry* Mc4* ,5k/IbdfHVNZ,0\tu/ r]\a]l E‘0* D2sN“.Wr.P./]0ObQ* I6{8 d2“,0/2“,0PlAB