老旧小区近距离铸铁管线探测实验与应用

Detection experiment and application of cast iron pipeline with close distance in old communities

地下管线是城市基础设施的重要组成部分,老旧小区的管线探测与维护已成为我国城市快速发展中的难题,其中铸铁管线是小区一种常见管线.以陕西省西安市西北大学太白校区内近距离铸铁管线(消防管线、给水管线)集中区域为例,开展了综合探测实验.探测方法包括电磁感应法、地质雷达法、声学探测法的组合应用.针对不同的近距离管线分布(同源和平行)组合,采用不同探测方法相互配合和交叉验证,最终绘制了准确的管网分布图.结果表明,采用合适的探测方法进行组合,分步骤进行试验和逻辑判断,可以有效地解决实际的近距离铸铁管线探测中的信号严重干扰问题.该研究为解决近距离铸铁管线探测问题提供了一定的参考.

Underground pipeline is an important part of urban infrastructure.The detection and maintenance of pipeline in old communities has become one of the difficult problems in the rapid development of Chinese cities.Taking the close cast iron pipeline(fire pipeline and water supply pipeline)concentrated area in Taibai campus of Northwest University,Xi’an,Shaanxi province as an example,the comprehensive detection experiment was carried out.The detection methods include electromagnetic induction,GPR(Ground Penetrating Radar)and acoustic detection.Different detection methods were used to coordinate and cross-verify different pipeline with close distance distribution combinations(homologous and parallel),and the accurate distribution map was finally drawn.The results show that the serious signal interference in the practical detection of cast iron pipeline can be effectively solved by combining the appropriate detection methods,testing and logical judgment step by step.This research provides some references for solving the problem of detecting cast iron pipeline at short distance.