全站仪自由设站法在高速公路桥梁施工中的应用与分析

111211(1.730050;2.744000.)[1];()2.11XOY001GPS002GPSP1972.9GIS,1981.92[2]P001GPS002GPSλ1D2D==λβλαsinarcsinsinarcsin12DDDD1001GPS()11,yx002GPS()22,yxP()ppyx,+−++=+−++=βαβαβαβαctgctgxxctgyctgyyctgctgyyctgxctgxxpp121221122P2.22[3]2iDX()Λ,3,2,1=iPiDiαiDX()iiYX,P()YX,0α()()−−−−+−=022arctanααXXYYYYXXDiiiiii30αYXiiYXiiDα20000αYX3()()20200YYXXDiii−+−=43=iiddDαA0αddYdX5A=()−−20000iiiiDYYDXX()20000iiiiDXXDYY−−−−10[iDVV=iVα]T6[Xxδ=Yδ]T0δα7+−−−−==0000arctanαααOiiiiiDXXYYDDllLii8iiiLxAV+⋅=9()iTiiTiPLAPAAx1−−=10P7+++=+=0000000000ˆˆˆδααδδααYYXXxYXYX11[4]4320−±=±=nVVrPVVmTT12rn10()1−=iTiXXPAAQ13XXQXXXXQmD20=1422YXPmmm+=15[5]21CP1CDα1C()YX,⋅⋅=ααsincosDDYX1616=22yxmm()()22DYDX22′′′′ρρXY22′′′′ρρDYZDXZ22αmmD17YXmmYXαmmD1C2221αρmDmmDC′′+±=(18151C212)()(CPCmmm+±=19252221sin1DDPmmM+±=γ20iDγ[6]()22iDbDam+±=21abiD2021()γβαγ4222222sinsinsinsin2++±=DbaMP22Dγβαγ()βα22sinsin+PMβα=41,800.852m72632010SET1//2mm+2ppm4dmsmGPS025000000595.123DX073-31001554423.325DX073-21255721469.992PDX073-11384807411.667JTJ041-2000200m1910mm7[1],.M.,2004.[2],.J.,2002,(4):15-18.[3],,.J.,2002,(3):123-125.[4].J.,2003,(3):67-68.[5].J.,2001,(12):8-9.[6].J.,2005,(2):58-60.