基于碾压机做功的堆石坝压实质量实时监测与快速评估
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摘要
以反映碾压机做功的坝料单位体积压实功(E)和碾轮振动加速度谐波失真量(THD0)作为堆石坝压实质量的实时监测指标,研制开发了堆石坝压实质量实时监测系统用于实现碾压过程中上述两个指标的采集。提出了结合E、THD0与坝料特性参数的堆石坝料全仓面压实质量快速评估方法,不仅可避免试坑法抽检样本的有限性,而且可有效克服碾压过程参数不能直接反映坝料压实状态以及基于碾轮性态分析的监控指标易于错误表征坝料坚硬程度等弊端,实现了堆石坝料压实质量的快速准确评估与及时反馈控制。
The unit volume compaction power(E)and the total harmonic distortion(THD0),which reflectrespectively the roller energy work done on dam materials and roller vibration behaviors,were employed asreal-time monitoring indices of rock-fill dam compaction quality. A real-time monitoring system of compac-tion quality was developed to obtain the values of these indices during rolling. An assessment characterizedby E,THD0 and dam material properties was proposed for evaluating rapidly the compaction quality ofrock-fill dam materials on the entire work unit,which can effectively overcome the shortage of pits sam-pling method and the deficiencies that the compacting process parameters are not available to reveal the re-al compaction quality directly and the indices basing on roller vibration behaviors analysis make a false rep-resentation of the rigidity of dam materials. Thus the method can realize a fast and accurate assessmentand timely feedback control on compaction quality of rock-fill dam materials.
The unit volume compaction power(E)and the total harmonic distortion(THD0),which reflectrespectively the roller energy work done on dam materials and roller vibration behaviors,were employed asreal-time monitoring indices of rock-fill dam compaction quality. A real-time monitoring system of compac-tion quality was developed to obtain the values of these indices during rolling. An assessment characterizedby E,THD0 and dam material properties was proposed for evaluating rapidly the compaction quality ofrock-fill dam materials on the entire work unit,which can effectively overcome the shortage of pits sam-pling method and the deficiencies that the compacting process parameters are not available to reveal the re-al compaction quality directly and the indices basing on roller vibration behaviors analysis make a false rep-resentation of the rigidity of dam materials. Thus the method can realize a fast and accurate assessmentand timely feedback control on compaction quality of rock-fill dam materials.
引文
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[2]吴晓铭,黄声享.水布垭水电站大坝填筑碾压施工质量监控系统[J].水力发电,2008,34(3):47-50.
[3]Zhong Denghua,Liu Donghai,Cui Bo.Real-time compaction quality monitoring of high core rockfill dam[J].Science China TechnologicalScience,2011,54(7):1906-1913.
[4]Zhong Denghua,Cui Bo,Liu Donghai,et al.Theoretical research on construction quality real-time monitoring and system integration of core-fill dam[J].Science in China Series E-Technological Science,2009,52(11):3406-3412.
[5]马洪琪,钟登华,张宗亮,等.重大水利水电工程施工实时控制关键技术及其工程应用[J].中国工程科学,2011,13(12):20-27.
[6]钟登华,刘东海,崔博.高心墙堆石坝碾压质量实时监控技术应用[J].中国科学:技术科学,2011,41(8):1027-1034.
[7]刘东海,王爱国,柳育刚,等.基于碾轮振动性态分析的土石坝压实质量实时监测与评估[J].水利学报,2014,45(2):60-67.
[8]Carlos Zambrano,Vincent Drnevich,Philippe Bourdeau.Advanced compaction quality control[R].U.S.Indiana:School of CivilEngineering,PurdueUniversity,2006.
[9]AMMANN.EuropeanandU.S.patentsontheACE-system[R].Swiss:AMMANVerdichtungAG,2002.
[10]?ke J.Sandstr?m.Control of a compaction machine with a measurement of the characteristics of the ground material[P].US:5727900,1998-03-17.
[11]White David J,Rupnow T,Ceylan H.Influence of subgrade/subbase nonuniformity of pavement performance[C]//Proceeding of Geo-Trans 2004 Geotechnical Engineering for Transportation Projects.Los Angeles California,Geotechnical Special Publication-ASCE,2004,No.126:1058-1065.
[12]Kaufmann K,Anderegg R.3D-construction applicationsⅢ:GPS-based compaction technology[C]//Proceedingsof the 1st International ConferenceonMachineControl&Guidance,ETHZurich,Swiss:2008:1-10.
[13]Anderegg R,Kaufmann K I.Compaction with vibratory rollers[J].Journal of Transportation Research Board,2004,1868:124-134.
[14]White David J,Thompson Mark J.Relationships between in situ and roller-integrated compaction measurements forgranularsoils[J].JournalofGeotechnicalandGeoenvironmentalEngineering,2008,134(12):1763-1770.
[15]Mooney M A,Rinehart R V.Instrumentation of a roller compactor to monitor vibration behavior during earthwork compaction[J].Journal ofAutomationinConstruction,2007,17(2):144-150.
[16]李丙扬.高土石坝坝料压实质量实时监测机理及其装置研制[D].天津:天津大学,2011.
[17]杨士敏.压路机使用中若干问题的探讨[J].建筑机械,1994(10):36-38.
[18]欧珠光.关于RCC振动压实能量的研究[J].湖北水利发电,1991(1):10-14.
[19]Liu Donghai,Sun Jing,Zhong Denghua,et al.Compaction Quality Control of Earth-Rock Dam Construction Using Real-Time Field Operation Data[J].Journal of Construction Engineering and Management,ASCE,2012,138(9):1085-1094.