摘要
研究区土质主要为湿陷性黄土,其孔隙发育、耐蚀力小、结构层疏松,在流水侵蚀作用下易形成孔洞,随着城市建设力度逐渐的不断加大,加之给、排水管道的老化渗漏,影响地下水文地质和土体状况,导致其稳定性降低,伴随着地下空间空洞、疏松不密实等病害的发生。为了对研究区内道路塌陷隐患进行探测,采用二三维探地雷达一体化作业模式的先进技术手段,来查明这些隐患的具体位置、规模、深度、病害等级等,达到提高道路地下安全预警与防治能力,减少路面塌陷事故发生的目的。
Mainly for collapsible loess soil in the study area,the pore development,corrosion resistant force is small,loose structure layer,under water erosion is easy to form holes,with the building of cities is increasing gradually,and to aging,drainage pipe leakage,affect the soil and the underground hydrogeological conditions,results in the decrease of its stability,with underground space empty,such as loose imperfect the happening of the disease.In order to detect the hidden danger of road collapse in the research area,the advanced technical means of integrated operation mode of two-three-dimensional GPR are adopted to identify the specific location,scale,depth and disease level of these hidden dangers,so as to improve the pre-warning and prevention ability of road underground safety and reduce the occurrence of road collapse accidents.
作者
李永强
Li Yongqiang(ARSC Underground Space Technology Development Co.,Ltd.,Xi'an 710199,China)
出处
《城市勘测》
2019年第S01期174-177,共4页
Urban Geotechnical Investigation & Surveying
关键词
探地雷达
二三维一体化
病害体
道路检测
Ground penetrating radar
Two three-dimensional integration
Disease of body
Road test
