摘要
近几年,城市道路地面塌陷事故不断发生,尤其是人行道塌陷事故对人民群众生命财产安全和城市安全运行秩序影响较大。本文利用探地雷达快速、便捷、无损、精度高、准确的特点,对兰州市城区道路进行地下病害体探测。通过对探测结果和成因统计进行分析发现城市人行道病害体检测不容忽视。所探测区域结果显示人行道病害体数目占比超过总病害体数目的 1/5,而且多种病害体成因容易相互叠加加速病害体的形成和发育,使得人行道塌陷事故发生的可能性增大。本文对3处典型的人行道病害体进行钻探验证和分析,发现探地雷达方法对道路浅层隐蔽性病害体识别应用效果较好,为相关部门制定针对性的处理措施提供依据和城市道路安全运行提供有力支撑。
In recent years,urban road surface collapse accidents occura lot,and especially the sidewalk collapse accidents have a great impact on the safety of people’s lives and property and the safe operation order of the city.In this paper,ground penetrating radar(GPR)is used to detect underground diseases on urban roads in Lanzhou city,which is fast,convenient,non-destructive,high precision and accurate.Through the analysis of detection results and cause statistics,it is found that the detection of urban sidewalk diseases can not be ignored.The results show that the number of pedestrian disease bodies accounts for more than one fifth of the total number of disease bodies,and the formation and development of disease bodies are easily accelerated by the superposition of the causes of various disease bodies,which increases the possibility of the occurrence of pedestrian collapse accidents.In this paper,three typical pedestrian disease bodies are drilled and verified.It is found that GPR method is effective in identifying shallow concealed disease bodies of roads,which provides basis for relevant departments to formulate targeted treatment measures and provides strong support for safe operation of urban roads.
作者
王鹏
WANG Peng(Lanzhou Geotechnical Investigation and Surveying Institute,Lanzhou 730000,China)
出处
《测绘通报》
CSCD
北大核心
2019年第S1期199-203,共5页
Bulletin of Surveying and Mapping
