CAJ | 학술논문

在铁路隧道洞内精密平面控制网CP域建立、复测过程中，因规范规定的往返观测平距较差限值、导线复测水平角较差限差及边长较差限差指标过严，致使规范不能严格有效执行。以某线3座新建隧道工程的洞内CP域控制网建立与复测为基础，对实测数据进行较差统计，对规范中现行测量限差匹配合理性进行分析，提出更加合理可行、安全可靠的限差指标建议，达到既能保证控制网测量质量，又减轻施测单位测量工作量的目的，供将来规范修订时参考。
재철로수도동내정밀평면공제망CP역건립、복측과정중，인규범규정적왕반관측평거교차한치、도선복측수평각교차한차급변장교차한차지표과엄，치사규범불능엄격유효집행。이모선3좌신건수도공정적동내CP역공제망건립여복측위기출，대실측수거진행교차통계，대규범중현행측량한차필배합이성진행분석，제출경가합리가행、안전가고적한차지표건의，체도기능보증공제망측량질량，우감경시측단위측량공작량적목적，공장래규범수정시삼고。
In the process of establishing and resurveying the CPII precise horizontal control network inside railway tunnels, some criterions in survey standard code usually cannot be complied with effectively, because these criterions in survey standard code are too strict, including the tolerance of to-fro observed horizontal distance discrepancy, the tolerance of traverse resurvey horizontal angle discrepancy, and the tolerance of side length discrepancy. For this reason, in this paper, based on the establishment and resurvey of CPII control network of three newly-built railway tunnels, the discrepancies of measured data were analyzed statistically, and also the rationality of the precision tolerance criterions in current survey standard code was analyzed. Finally, this paper made a suggestion on a set of new precision tolerance criterions, which are more rational and feasible, more safe and reliable. With above-mentioned new precision tolerance criterions, not only the survey quality of control network can be ensured, but also the survey workload of survey firm can be lessened. This research can serve as reference for revising the survey standard code in future.