狼牙滩水电站隧洞混凝土衬砌钢模台车检测分析
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摘要
水电站导流、引水发电、泄洪等地下隧洞,多利用钢模台车进行混凝土衬砌。文章以狼牙滩水电站建设为背景,重点在人员、设备、检测方法、环境四个方面分析了混凝土衬砌钢模台车检测混凝土体形偏差不达标的原因。确定传统检测方法台车中部通视条件局限性是造成检测偏差不达标的主要原因,在台车上牵引钢丝线来对检测方法改进完善。狼牙滩水电站各隧洞应用验证了文中改进完善方法的有效性。
Steel formwork trolley is often used for concrete lining of underground tunnels of hydropower stationriver diversion,power generation and flood discharge, etc. Construction of Langyatan Hydropower Station is regarded as the background in the paper. The reasons why the deviation of concrete shape detected by the concrete lining steel formwork trolley does not reach standard are analyzed from four aspects, including personnel, equipment, detection methods and environment. The limitation of sightingcondition in the trolley center of the traditional inspection method is determined as the main reason that the inspection deviation is not up to the standard. A steel wire is pulled on the trolley to improve and perfect the inspection method.The effectiveness of the improved method is verified in the paper through the application of all tunnels in Langyatan Hydropower Station.
Steel formwork trolley is often used for concrete lining of underground tunnels of hydropower stationriver diversion,power generation and flood discharge, etc. Construction of Langyatan Hydropower Station is regarded as the background in the paper. The reasons why the deviation of concrete shape detected by the concrete lining steel formwork trolley does not reach standard are analyzed from four aspects, including personnel, equipment, detection methods and environment. The limitation of sightingcondition in the trolley center of the traditional inspection method is determined as the main reason that the inspection deviation is not up to the standard. A steel wire is pulled on the trolley to improve and perfect the inspection method.The effectiveness of the improved method is verified in the paper through the application of all tunnels in Langyatan Hydropower Station.
引文
[1] 李新,刘金林,覃政和.钢模台车在现浇大直径混凝土管涵中的应用[J].水电站机电技术,2018,41(11):41-43,47.
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[7] 刘亚军.针梁钢模台车在深蓄电站引水隧洞衬砌混凝土施工中的应用[J].水利水电施工,2017(2):109-112.
[2] 任亚红.隧洞二次衬砌液压钢模台车的改装及应用[J].农业科技与信息,2018(19):115-116,120.
[3] 李明,张永,段科峰,等.小断面隧洞双钢模台车快速衬砌施工技术[J].四川水力发电,2018,37(5):59-61,153.
[4] 陈雪万,张静.大型地下洞室混凝土衬砌钢模台车测量方法研究——以白鹤滩水电站为例[J].人民长江,2018,49(S1):245-247.
[5] 张华林.钢模台车在隧道衬砌施工中的应用[J].山西水利,2018,34(4):47-48.
[6] 刘义杰,刘文明.隧洞二次衬砌液压钢模台车的改装及应用[J].山西水利科技,2017(4):33-35.
[7] 刘亚军.针梁钢模台车在深蓄电站引水隧洞衬砌混凝土施工中的应用[J].水利水电施工,2017(2):109-112.