摘要
排水管道泄漏会对地下土壤造成污染,还可能引发冲刷空洞、塌陷等严重事故,应及时检出.通过文献调研排水管道泄漏检测技术的发展趋势,分析了 CCTV、QV、土壤特征因子分析、探地雷达、航空热成像、高密度电阻率法、浅层瞬变电磁法等主流和潜在检测技术的特点、优劣势及现阶段研究方向.分析发现:国内CCTV检测技术多个技术细分方向都还有待发展;现有单一检测技术无法应对所有类型的检测任务,要获得准确、完整的地下管道状态信息,应综合应用多种技术;浅层瞬变电磁法是较有潜力的排水管道泄漏检测技术.
Abstract
The leakage of drainage pipes will pollute the underground soil,and also cause more serious accidents such as cavities and collapses,which should be detected in time.The development trend of leakage detection tech-nology are surveyed through literature to analyze the characteristics,advantages,disadvantages,and current re-search hot-pots of mainstream or potential technologies such as CCTV,QV,soil sampling,ground penetrating radar,aerial thermal imaging,multi-electrode resistivity method,and shallow transient electromagnetic.Analysis shows that CCTV detection technology still needs further development in multiple technical directions in China;Any single detection technology cannot handle all types of detection tasks.In order to obtain accurate and complete status information of underground pipes,multiple technologies should be comprehensively applied;Shallow transient electromagnetic is a potential leakage detection technology.
国家科技期刊平台
NSTL
万方数据