Engineering Application And Management Analysis For Underground Disease Detection With Radar In Guangrao County

With the acceleration of urbanization,the frequency of road collapse accidents in large and medium-sized cities is increasing gradually.The existence of underground diseases such as underground goaf,loose body and rich water body poses a serious threat to engineering construction and the safety of life and property.Road overload,construction,pipeline leakage and other external factors easily lead to disease.At present,ground-penetrating radar(GPR)technology with high efficiency,intuitive results and simple interpretation has been widely used in the detection of road underground diseases.Due to the existence of ubiquitous radar signal interference sources,it is difficult to distinguish the road underground diseases,the standards are different,and there is still a lack of systematic engineering examples and management program research.According to the above problem,this article focuses on ground penetrating radar(GPR)technology in road underground engineering technology management and application method in the detection of diseases,which including the principle of GPR detection,underground disease detection and construction management,road underground disease classification and interference factors analysis,disease treatment countermeasure and suggestion.The main results of this research are as follows:(1)This paper introduces the geophysical prerequisites for the development of GPR on typical urban road pavements and main pavements,with emphasis on the detection principle and measurement methods of GPR technology,as well as the hardware and software systems of GPR.(2)According to the project situation,the comprehensive management measures and matters needing attention for the construction management of the underground road disease detection project are formulated.(3)The surrounding area of the drainage pipeline located in the main road and sidewalk of le 'an street in the urban area of guangrao county is selected as the research area,and the detection is carried out based on ekko-pro ground-penetrating radar,then the original observation data is processed,and then the detection results of ground-penetrating radar of each survey line are obtained in sections.(4)According to the multi-source factors,the road diseases in the survey area are divided into four typical types and the classification basis is given.A risk assessment system has been established.The countermeasures and Suggestions for the treatment of underground diseases are given to effectively reduce the loss caused by road collapse caused by road diseases.