高速铁路技术
高速鐵路技術
고속철로기술
HIGH SPEED RAILWAY TECHNOLOGY
2014年
3期
45-48
,共4页
高速铁路%隧道洞内CPⅡ控制网%复测%限差
高速鐵路%隧道洞內CPⅡ控製網%複測%限差
고속철로%수도동내CPⅡ공제망%복측%한차
high speed railway%CPⅡcontrol network in tunnel%re-surveying%tolerance
根据《高速铁路工程测量规范》的要求，在高速铁路建设及后续运营维护期间，要对精测网进行定期和不定期复测，其中包括隧道洞内CPⅡ控制网复测。文章结合柳南客运专线、南广铁路、渝利铁路和厦深铁路隧道洞内CPⅡ控制网复测项目，对隧道洞内CPⅡ复测的坐标、水平角和边长与原测进行比较和分析，发现若按《高速铁路工程测量规范》中复测指标要求，则水平角和边长复测与原测较差超限较多；若根据测量误差传播定律，将水平角和边长复测与原测较差的限差作调整，并应用于柳南客运专线、南广铁路、渝利铁路和厦深铁路精测网复测中，不仅满足后续CPⅢ平面控制网平差计算要求，同时大大提高工作效率，对今后高速铁路隧道洞内CPⅡ控制网复测相关规范的进一步完善，具有重要的参考价值。
根據《高速鐵路工程測量規範》的要求，在高速鐵路建設及後續運營維護期間，要對精測網進行定期和不定期複測，其中包括隧道洞內CPⅡ控製網複測。文章結閤柳南客運專線、南廣鐵路、渝利鐵路和廈深鐵路隧道洞內CPⅡ控製網複測項目，對隧道洞內CPⅡ複測的坐標、水平角和邊長與原測進行比較和分析，髮現若按《高速鐵路工程測量規範》中複測指標要求，則水平角和邊長複測與原測較差超限較多；若根據測量誤差傳播定律，將水平角和邊長複測與原測較差的限差作調整，併應用于柳南客運專線、南廣鐵路、渝利鐵路和廈深鐵路精測網複測中，不僅滿足後續CPⅢ平麵控製網平差計算要求，同時大大提高工作效率，對今後高速鐵路隧道洞內CPⅡ控製網複測相關規範的進一步完善，具有重要的參攷價值。
근거《고속철로공정측량규범》적요구，재고속철로건설급후속운영유호기간，요대정측망진행정기화불정기복측，기중포괄수도동내CPⅡ공제망복측。문장결합류남객운전선、남엄철로、투리철로화하심철로수도동내CPⅡ공제망복측항목，대수도동내CPⅡ복측적좌표、수평각화변장여원측진행비교화분석，발현약안《고속철로공정측량규범》중복측지표요구，칙수평각화변장복측여원측교차초한교다；약근거측량오차전파정률，장수평각화변장복측여원측교차적한차작조정，병응용우류남객운전선、남엄철로、투리철로화하심철로정측망복측중，불부만족후속CPⅢ평면공제망평차계산요구，동시대대제고공작효솔，대금후고속철로수도동내CPⅡ공제망복측상관규범적진일보완선，구유중요적삼고개치。
According to requirements of Code for Engineering Survey of High Speed Railway,regular and irregular re-surveying to the precision measuring network,including the re-surveying of CPⅡcontrol network in tunnel shall be per-formed during construction and subsequent operation maintenance of high-speed railway.In this paper,the author com-bines with the re-surveying of CPⅡcontrol network in tunnel of Liuzhou-Nanning,Nanning-Guangzhou,Chongqing-Li-chuan and Xiamen-Shenzhen high-speed railways,compares and analyzes the coordinates,horizontal angle and side length between CPⅡre-surveying in tunnel and the original survey,finds that the horizontal angle and side length be-tween CPⅡre-surveying in tunnel and the original survey are out of the tolerance in great degree according to the re-sur-veying index requirements of Code for Engineering Survey of High Speed Railway;and according to measure error propa-gation law,adjusts the overranging tolerance of horizontal angle,distance between the original survey and re-surveying, and applies it in the re-surveying of the precise survey control network of Liuzhou-Nanning,Nanning-Guangzhou, Chongqing-Lichuan and Xiamen-Shenzhen high speed railways,which not only meets the adjustment computation re-quirements of the plane control network of CPⅢ,but also improves the work efficiency greatly at the same time,and pro-vides the references for the improvement and revision of the related specifications on CPⅡ control network re-surveying in tunnel of high speed railway.
