高速公路路面干湿状态判别及积水模型应用研究

发布时间：2018-06-14 16:24

  本文选题：道路积水(雪)量模型 + 蒸发　； 参考：《热带气象学报》2017年04期

【摘要】：为了探明公路路面积水(积雪)过程和干湿状况的变化及其气象因子的影响,以江苏省金坛试验基地试验路段的道路气象数据作为模型输入数据,利用改进的Sass道路积水物理模型对3次降雨(雪)过程中的道路积水量进行模拟,通过对模型模拟结果的分级和与仪器记录、人工观测结果的对比,验证模型模拟路面状况的准确性,并探讨了气象因子对路面积水量的影响。研究结果表明:(1)改进的Sass模型可用于对道路干湿状况的模拟,且准确性较高,可推广到高速公路路面状况的实时监测和预报;(2)排水过程中,径流和蒸发在不同时期对排水量的贡献率差异较大,从总量上讲,径流对排水起了主要作用;(3)气象因子对道路积水的影响主要体现在降水量直接影响道路积水,而其他气象因子则通过对蒸发量的影响来间接影响积水量。
[Abstract]:In order to find out the changes of water accumulation (snow cover) process, dry and wet conditions and the influence of meteorological factors on highway pavement, the road meteorological data of the experimental section of Jintan Test Base in Jiangsu Province were taken as the input data of the model. The improved Sass physical model is used to simulate the amount of road water accumulated in the course of three rainfall (snow). The simulation results are compared with the results of manual observation and the classification of the simulation results. The accuracy of the simulation model is verified, and the influence of meteorological factors on the water volume of road area is discussed. The results show that the improved Sass model can be used to simulate the dry and wet conditions of roads, and the accuracy is high, which can be extended to the real-time monitoring and forecasting of highway pavement condition. The contribution rate of runoff and evaporation to water displacement varies greatly in different periods. In terms of total amount, runoff plays a major role in drainage. (3) the influence of meteorological factors on road water accumulation is mainly reflected in the direct influence of precipitation on road water accumulation. Other meteorological factors indirectly affect water accumulation through the influence of evaporation.
【作者单位】： 南京信息工程大学气象灾害预报预警与评估协同创新中心;中国气象局交通气象重点开放实验室;
【基金】：“十二五”国家科技支撑计划(2014BAG01B01) 国家公益性行业(气象)科研专项(GYHY201306043、GYHY201406029) 江苏省科技支撑计划(BE2015732) 江苏省气象局北极阁基金(BJG201404) 江苏省高校优势学科建设工程共同资助
【分类号】：U418.6
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本文编号：2018131