Generally, mine roads are located in the mountain areas, as its complex topography, mostly along the river near the cliffs, steep bend anxious, the mine road design has to adopt lower technical standards relatively an...Generally, mine roads are located in the mountain areas, as its complex topography, mostly along the river near the cliffs, steep bend anxious, the mine road design has to adopt lower technical standards relatively and usually is lack of traffic safety facilities. Especially, there are mainly medium-sized vehicles on mine road, under the heavy traffic vehicles affect repeatedly, high frequency of traffic accidents more easily happen in mine road area and cause serious effects on life or property. Combining with the particularity of mine road safety environment, this paper studies the basic theory of safety evaluation, analyses the factors of traffic safety design and special mine terrain conditions, and then establishes mine road safety index system and evaluation model based on the principles such as systematicness, independent indexes, qualitative and quantitative analysis, feasibility, scientificity and reliability. At last, the paper successfully evaluates the safety of road in Huang Mailing phosphate rock area with fuzzy AHP method based on engineering project.展开更多
针对露天矿路网采集与更新传统人工识别方法生成路网不准确、时效性差的问题,提出了一种基于露天矿路网时空一体化的自适应制图方法,该方法对车载GNSS轨迹出现轨迹点定位漂移的问题,做出车辆定位漂移的判断和校正;基于大规模的GNSS轨迹...针对露天矿路网采集与更新传统人工识别方法生成路网不准确、时效性差的问题,提出了一种基于露天矿路网时空一体化的自适应制图方法,该方法对车载GNSS轨迹出现轨迹点定位漂移的问题,做出车辆定位漂移的判断和校正;基于大规模的GNSS轨迹,自动构建具有地理位置信息的拓扑结构;使用信息熵来评估道路布局的复杂性,从而调整细化阈值,并持续将新产生的轨迹点融入到现有路网。在四川省攀枝花市某矿场收集到的轨迹点进行试验,与Open Street Map等卫星影像进行叠加分析,准确率达到96.7%,较CLL方法提升7.6%;处理速度较传统人工方法提升445.95%。本文方法能够在采用更少路段、更少节点的情况下,以更高的准确率提取出高质量路网,同时解决了传统人工方法效率低、时效性弱和传统自动构建CLL方法准确率差的问题,具有较高的和实用性。展开更多
文摘Generally, mine roads are located in the mountain areas, as its complex topography, mostly along the river near the cliffs, steep bend anxious, the mine road design has to adopt lower technical standards relatively and usually is lack of traffic safety facilities. Especially, there are mainly medium-sized vehicles on mine road, under the heavy traffic vehicles affect repeatedly, high frequency of traffic accidents more easily happen in mine road area and cause serious effects on life or property. Combining with the particularity of mine road safety environment, this paper studies the basic theory of safety evaluation, analyses the factors of traffic safety design and special mine terrain conditions, and then establishes mine road safety index system and evaluation model based on the principles such as systematicness, independent indexes, qualitative and quantitative analysis, feasibility, scientificity and reliability. At last, the paper successfully evaluates the safety of road in Huang Mailing phosphate rock area with fuzzy AHP method based on engineering project.
文摘针对露天矿路网采集与更新传统人工识别方法生成路网不准确、时效性差的问题,提出了一种基于露天矿路网时空一体化的自适应制图方法,该方法对车载GNSS轨迹出现轨迹点定位漂移的问题,做出车辆定位漂移的判断和校正;基于大规模的GNSS轨迹,自动构建具有地理位置信息的拓扑结构;使用信息熵来评估道路布局的复杂性,从而调整细化阈值,并持续将新产生的轨迹点融入到现有路网。在四川省攀枝花市某矿场收集到的轨迹点进行试验,与Open Street Map等卫星影像进行叠加分析,准确率达到96.7%,较CLL方法提升7.6%;处理速度较传统人工方法提升445.95%。本文方法能够在采用更少路段、更少节点的情况下,以更高的准确率提取出高质量路网,同时解决了传统人工方法效率低、时效性弱和传统自动构建CLL方法准确率差的问题,具有较高的和实用性。
