运营高速铁路精测网复测评估方法研究
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摘要
为提高运营期高速铁路精测网复测评估工作的规范性及标准化,基于十余条运营高铁精测网复测的评估实践,对其工作流程、评估规程及各个质量控制环节进行分析,建立测量项目全过程咨询评估体系:(1)在项目启动初期,应完善内部管理制度,制定作业指导书、评估大纲、各类补充规定,并进行方案审核及作业培训;(2)项目实施过程中,应严格执行实施方案、作业指导书和技术规程;(3)在项目后期,应对精测网复测成果进行精确验算与数据质量检查,提出评估结论建议。研究表明,评估的重难点问题为基准选取、复测成果更新及变形分析,并得出以下结论:基准点的选用应经过稳定性和兼容性检验;平面成果更新应结合原复测坐标较差、异常区段复测、横向变形等结果进行综合分析;高程成果更新应通过首次整网平差与二次平差确定;变形分析中需首先分析异常变形情况,必要时进行二次复测,并结合工程特点与结构特征进一步分析其对轨道平顺性的影响。
In order to improve the standardization of the evaluation of the retesting work of the high-speed railway precision measurement network during the operation period,based on the evaluation practice of the remeasurement of the precision measurement network for more than ten high-speed railways,this paper analyzes their work flows,evaluation procedures and various quality control links,and establishes a consultation evaluation system for the whole process of measurement projects:( 1) At the initial stage of the project,the evaluation unit shall improve the internal management system,formulate operation instructions,evaluation outlines,various supplementary regulations,review the measurement plan and conduct operation training;( 2)During the implementation of the project,the measurement unit shall carry out the measurement strictly according to the plan,operation instructions and technical regulations;( 3) In the later stage of the project,the evaluation unit shall conduct accurate verification and data quality checking on the retesting results of theprecision measurement network, and propose evaluation conclusions. The research shows that the difficult problems in the evaluation are thebenchmark selection,the retesting results update and the deformation analysis,and the following conclusions are drawn: The selection of the reference point should be checked by stability and compatibility test; the update of the plane results should be combined with the difference between the original and re-measurement coordinates,the abnormal section retest results,and the lateral deformation; the elevation update should be determined by the first whole network adjustment and the second adjustment; in the deformation analysis,it is necessary to analyze the abnormal deformation first,and if necessary,perform the second re-measurement,and further analyze the influence of the deformation on the track smoothness by combining the engineering characteristics and structural features.
In order to improve the standardization of the evaluation of the retesting work of the high-speed railway precision measurement network during the operation period,based on the evaluation practice of the remeasurement of the precision measurement network for more than ten high-speed railways,this paper analyzes their work flows,evaluation procedures and various quality control links,and establishes a consultation evaluation system for the whole process of measurement projects:( 1) At the initial stage of the project,the evaluation unit shall improve the internal management system,formulate operation instructions,evaluation outlines,various supplementary regulations,review the measurement plan and conduct operation training;( 2)During the implementation of the project,the measurement unit shall carry out the measurement strictly according to the plan,operation instructions and technical regulations;( 3) In the later stage of the project,the evaluation unit shall conduct accurate verification and data quality checking on the retesting results of theprecision measurement network, and propose evaluation conclusions. The research shows that the difficult problems in the evaluation are thebenchmark selection,the retesting results update and the deformation analysis,and the following conclusions are drawn: The selection of the reference point should be checked by stability and compatibility test; the update of the plane results should be combined with the difference between the original and re-measurement coordinates,the abnormal section retest results,and the lateral deformation; the elevation update should be determined by the first whole network adjustment and the second adjustment; in the deformation analysis,it is necessary to analyze the abnormal deformation first,and if necessary,perform the second re-measurement,and further analyze the influence of the deformation on the track smoothness by combining the engineering characteristics and structural features.
引文
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[12]杨绪成.高速铁路运营期精测网复测及沉降监测信息管理系统开发研究[J].铁道勘察,2018(5):17-20.
[13]徐亚军,王兵海.高速铁路施工测量质量管理与咨询评估[J].长沙铁道学院学报(社会科学版),2012,13(1):216-217
[14]刘晋虎,张训虎,田宗彪,等.国家一等水准观测成果质量检验探讨[J].北京测绘,2015(2):124-126,147.
[15]王智.高速铁路精测网评估验收的必要性与工作要点[J].高速铁路技术,2010,1(5):27-30.
[16]徐向春.高速铁路运营阶段路基沉降变形规律研究[D].南昌:华东交通大学,2014.
[2]许张柱.高速铁路构筑物变形测量与评估信息化系统研究[J].测绘通报,2017(S2):168-172.
[3]陈超,张献州,尚金光.高速铁路沉降观测数据生产过程质量控制与管理[J].高速铁路技术,2011,2(5):25-29.
[4]周东卫.高速铁路精密工程测量管理关键控制环节及对策[J].工程勘察,2015,43(6):66-72.
[5]苏文东,吴学智.大西客运专线测量咨询评估方法应用研究[J].铁道标准设计,2011(S1):49-51.
[6]卢建康,刘华.高速铁路精密工程测量技术体系的建立及特点[J].铁道标准设计,2010(S1):70-73.
[7] TB 10601—2009高速铁路工程测量规范[S].
[8] TG/GW276—2015运营高速铁路精密测量控制网管理办法[S].
[9]刘定威.城市轨道交通工程精测网复测及成果分析[J].铁道勘察,2017,43(4):22-26.
[10]黄雨微,谭社会,王鹏,等.运营高铁精测网复测与基础变形监测咨询评估管理模式初探[J].铁道勘察,2018,44(4):50-55.
[11]王丹,刘振萍.现代工程测量标准化思考[J].工程勘察,2015,43(1):1-4.
[12]杨绪成.高速铁路运营期精测网复测及沉降监测信息管理系统开发研究[J].铁道勘察,2018(5):17-20.
[13]徐亚军,王兵海.高速铁路施工测量质量管理与咨询评估[J].长沙铁道学院学报(社会科学版),2012,13(1):216-217
[14]刘晋虎,张训虎,田宗彪,等.国家一等水准观测成果质量检验探讨[J].北京测绘,2015(2):124-126,147.
[15]王智.高速铁路精测网评估验收的必要性与工作要点[J].高速铁路技术,2010,1(5):27-30.
[16]徐向春.高速铁路运营阶段路基沉降变形规律研究[D].南昌:华东交通大学,2014.