| 刘东海,李子龙,王爱国.基于碾压机做功的堆石坝压实质量实时监测与快速评估[J].水利学报,2014,45(10): |
| 基于碾压机做功的堆石坝压实质量实时监测与快速评估 |
| Roller working-based real-time monitoring and rapid assessment of rock-fill dam compaction quality |
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| DOI： |
| 中文关键词: 堆石坝 碾压质量 实时监测 质量评估 单位体积压实功 谐波失真量 |
| 英文关键词: rock-fill dam compaction quality real-time monitoring quality assessment unit volume compaction power total harmonic distortion |
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| 摘要点击次数: 2022 |
| 全文下载次数: 17 |
| 中文摘要: |
| 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。 |
| 英文摘要: |
| The unit volume compaction power （E） and the total harmonic distortion （THD0）， which reflect respectively the roller energy work done on dam materials and roller vibration behaviors， were employed as real-time monitoring indices of rock-fill dam compaction quality. A real-time monitoring system of compaction quality was developed to obtain the values of these indices during rolling. An assessment characterized by E， THD0 and dam material properties was proposed for evaluating rapidly the compaction quality of rock-fill dam materials on the entire work unit， which can effectively overcome the shortage of pits sampling method and the deficiencies that the compacting process parameters are not available to reveal the real compaction quality directly and the indices basing on roller vibration behaviors analysis make a false representation of the rigidity of dam materials. Thus the method can realize a fast and accurate assessment and timely feedback control on compaction quality of rock-fill dam materials. |
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