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PIONEERINGWITHSCIENCE&TECHNOLOGYMONTHLYNO.12012,“”。,()、、、,,“”“”。,,,,,,,。,、、。,,、、、,,。,,,,,,,。,,。,,,。,,,。11.1,,。,,。,。,,。,,、,。P,PA、B、C……,P(1)。、、,,。,。、、,。1.2,2。2XOY,A,P();X′PY′P,X′,α0XX′。PASAαA,AX′(430202):,、,,。:;;;:TP2:A:2011-10-1212141PIONEERINGWITHSCIENCE&TECHNOLOGYMONTHLY20121PY′(XA′,YA′):XA′=SAcosαAYA′=SAsinαA (1)(1)X′PY′A,XOY,:XA=XP+Kcosα0XA′-Ksinα0XA′YA=YP+Ksinα0YA′+Kcosα0YA ′(2),(XA,YA)AXOY,(XP,YP)PXOY,α0,K。c=Kcosα0,d=Ksinα0,(2):XA=XP+cXA′-dXA′YA=YP+dYA′+cYA ′(3)(3),XA,YA,XA′,YA′,XP,YP,c,d,,,P。1.3P,,。n,,,VTPV=min,XP,YP,c,d,c=[YY′]+[XX′]-1n([X′][X′]+[Y′][Y′])[X′X′][Y′Y′]-1n([X′][X′]+[Y′][Y′])d=[X′Y′]-[Y′X′]-1n([X′][Y]-[Y′][X])[X′X′][Y′Y′]-1n([X′][X′]-[Y′][Y′])XP=[X]n-c·[X′]n+d·[Y′]nYP=[Y]n-c·[Y′]n-d·[X′]n (4)23,A,B,C,,P。1,2。(4):XP=3845.531mYP=4759.145 m3,,,,,,。,,,。3.1PP,,,c、dXP,YP,P,,P。MP=±2姨VTVr姨=±2姨VTV2n-4姨(5),n,r。(5),PMP=±8mm。3.2,θρ。θ。±2″,500m,Mθ=D·sinα=±5mm,。ρ。±(2mm+2ppm·D),500m,Mρ=0.002+2ppm×500=±0.003m=±3mm,,5.8mm。4,,,,。。,,,。,。,。,,8mm。500m,,5.8mm。,,。,。1.[J].,2006(5)2,.[M].:,19973,.[M].:,1983()3P1ABCX(m)4398.2993914.7163596.116Y(m)4632.8725110.9615080.4452P°′″000009150011404117(m)567.006361.498406.745ABC142
本文标题:全站仪自由设站法在施工测量放样中的应用
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