摘要
本文初步探讨了坝区精密三边网的可靠性评价与平差问题,给出了设计该网时,最弱可靠性(r_i)边的量值,及提高可靠性的措施.并对粗差(△_i)与最小二乘残差(?)的界值问题作了较详细的分析,在此基础上提出了用P_i=r_i/?定权,削弱粗差对平差成果影响的迭代权平差法.
This paper studies preliminarily the reliability appraisal and the adjustment problems of the precise triangulation network in a dam area gives the value of the side with the weakest reliability(ri) side for designing the network, and proposes the measures for improving the reliability. The problem of the bound value between the blunder (Δi) and the least square residual error(?) is analyzed in detail and on that basis, the iterative weighted adiustment method is suggested, which determines weight with ? and reduces the effect of the blunder on the adjustment result.
出处
《大坝观测与土工测试》
北大核心
1989年第3期18-22,17,共6页
Dam Observation and Geotechnical Tests
