基于局域定位思想的碾压施工质量精准监控理论与方法研究

According to some challenging key scientific problems needed to be solved in the real-time monitoring of roller compacted quality of roller compacted dam filling（pouring），such as whole course and high precision positioning and monitoring of the roller compacted construction and accurate analysis of the rolling parameters，this research is aimed at the realization of precision monitoring of roller compacted construction process and studies on precision monitoring principal of the roller compacted construction quality based on the thought of local location，especially studies on the theory and method on high precision local location of compaction machines on dam surface and on accurate analysis of rolling parameters. Composition of precision monitoring system of the roller compacted construction quality based on the thought of local location is analyzed to reveal connotation of the precision monitoring. Precision analysis of positioning base stations layout and NLOS inhibition research are carried out according to natural geographical characteristics in the dam construction area to build the joint optimization model combining positioning base station layout in dam area and NLOS inhibition, then propose the solutions. This research also analyses the rolling operating characteristics on dam surface，then studies on the monitoring data mining methods of the rolling process，and proposes an accurate analysis method for rolling parameters. This research can solve the applied basic scientific problems of positioning monitoring and rolling parameters analysis existing in real-time monitoring of rolling construction quality nowadays. This research provides theoretical and technical support for the high-quality construction of roller compacted dam，which is of important theoretical significance and engineering application value.

针对当前碾压式大坝填（浇）筑碾压质量实时监控中存在的具有挑战性、亟待解决的关键科学问题：碾压施工过程的全程高精度定位监测问题、碾压参数的精准分析问题，以实现碾压施工过程的精准监控为目标，对基于局域定位思想的碾压施工质量精准监控原理进行研究，重点研究坝面碾压机高精度局域定位、碾压参数精准分析的理论与方法：剖析基于局域定位思想的碾压施工质量精准监控系统构成，揭示精准监控内涵；依据坝区自然地理特征进行定位基站布局精度分析和NLOS抑制研究，建立坝区定位基站布局与NLOS抑制的联合优化模型并提出解决方法；分析坝面碾压作业特征，研究碾压过程监测数据挖掘方法，并提出碾压参数精细计算分析方法。本研究可解决当前坝体填（浇）筑碾压施工质量实时监控在定位监测以及碾压参数分析方面存在的应用基础科学问题，可为碾压式大坝高质量的建设提供理论与技术支持，具有重要的理论意义和工程应用价值。

针对当前碾压式大坝填（浇）筑碾压质量实时监控中存在的具有挑战性、亟待解决的关键科学问题：碾压施工过程的全程高精度定位监测问题、碾压参数的精准分析问题，以实现碾压施工过程的精准监控为目标，对基于局域定位思想的碾压施工质量精准监控原理进行研究，重点研究坝面碾压机高精度局域定位、碾压参数精准分析的理论与方法：剖析基于局域定位思想的碾压施工质量精准监控系统构成，揭示精准监控内涵；依据坝区自然地理特征进行光学辅助定位研究，建立坝区GNSS和智能全站仪的联合作业模型并提出解决方法；分析坝面碾压作业特征，研究碾压过程监测数据挖掘方法，并提出碾压参数精细计算分析方法。本研究可解决当前坝体填（浇）筑碾压施工质量实时监控在定位监测以及碾压参数分析方面存在的应用基础科学问题，可为碾压式大坝高质量的建设提供理论与技术支持，具有重要的理论意义和工程应用价值。