市政道路结构地下管线探测与力学特性数值模拟分析  

Detection of underground pipeline and numerical simulation analysis of mechanical characteristics of municipal road structure

作　　者：芮勇勤[1] 袁健玮 金生吉 许立 RUI Yongqin;YUAN Jianwei;JIN Shengji;XU Li(School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,Liaoning,China;Beijing Urban Construction Design&Development Group Co.,Limited,Beijing 100037,China;School of Architecture and Civil Engineering,Shenyang University of Technology,Shenyang 110870,Liaoning,China)

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819 [2]北京城建设计发展集团股份有限公司,北京100037 [3]沈阳工业大学建筑与土木工程学院,辽宁沈阳110870

出　　处：《沈阳工业大学学报》2025年第1期106-113,共8页Journal of Shenyang University of Technology

基　　金：国家自然科学基金项目(52179123)。

摘　　要：【目的】随着人口增长和城市化进程的加快,城区规模不断扩大,城市地下工程建设不可避免地与既有运行管线产生交互。地下管线具备给水、雨污水处理、化石能源运输、有线电视信号传输、电能输送等功能,担负着水、电、信息和能量的供给与传输,被称为城市的“神经”和“血管”,更是稳定城市运行的“生命线”。管线的渗漏、破裂甚至引发路面塌陷,不仅严重影响交通,还为城市排水系统埋下重大安全隐患。每年各地需投入大量人力物力用于地下管线的探测与维护。【方法】针对市政道路中地下管线分布、损伤及渗漏的普遍问题,基于探地雷达技术,提出了一种地下管线探测方案。通过探测不同种类管线的数据,结合原理分析、试验和数值模拟验证,研究管线渗漏引发路面沉陷的机理。【结果】该方案基于探地雷达的探测原理,通过图谱特征识别方法获取地下管线的分布、埋深、管径、材质、管线内部介质以及空洞等参数。结合伪彩色电平图、灰色电平图及波形堆积图等信号数据,建立有限元模型,并对管线渗漏特性进行综合分析,从而研究揭示了渗漏发展的趋势及其对道路结构的损伤机理。【结论】研究表明,道路损伤受多因素影响,包括路面车辆荷载、管道内部压力、管道埋深和直径等。通过探地雷达反射图像的逆向分析,结合路面的病害动力固结数值模拟,可评估管线运行状况及受力特征,从而优化管线布置点位和材质,强化管线上部结构设计,加强路基的防沉陷保护,避免工后路面沉降开裂。研究建议通过调整受力点位置、扩大受力面积和避免应力集中,预防路基结构与管线的破损。本文基于探测数据与数值模拟,对比不同种类管线的变形特性,总结管线渗漏的作用规律,为后续地下工程的定向开挖和城市道路灾害的排查提供指导。[Objective]With the acceleration of population growth and urbanization,the scale of urban areas continues to expand,and the construction of urban underground engineering inevitably interacts with existing operating pipelines.Underground pipelines have functions such as water supply,rainwater and sewage treatment,transportation of fossil energy,transmission of cable television signals,and power transmission.They bear the responsibility of supplying and transporting water,electricity,information,and energy and are called the“nerves”and“blood vessels”of the city.They are even the“lifeline”that stabilizes the operation of the city.Leakage and rupture of pipelines and even further road collapse not only seriously affect traffic but also pose major safety hazards for urban drainage systems.Every year,a large amount of manpower and material resources need to be invested in the detection and maintenance of underground pipelines in various regions.[Methods]A detection scheme for underground pipelines based on ground penetrating radar(GRP)technology was proposed to address the common problems of distribution,damage,and leakage of underground pipelines in municipal roads.By detecting data from different types of pipelines and combining principle analysis,experiments,and numerical simulation verification,this study explored the mechanism of road subsidence caused by pipeline leakage.[Results]This scheme is based on the detection principle of ground penetrating radar and uses map feature recognition methods to obtain parameters related to the distribution,burial depth,pipe diameter,material,internal medium,and voids of underground pipelines.By combining signal data such as pseudo-color level map,gray level map,and waveform stacking map,a finite element model was established,and the leakage characteristics of pipelines were comprehensively analyzed to study and reveal the development trend of leakage and its damage mechanism to road structure.[Conclusion]Research has shown that road damage is influenced by multiple

关 键 词：市政道路结构 地下管线 地质雷达 探测 道路损伤 渗漏机理 力学特性 数值模拟 

分 类 号：TU478[建筑科学—结构工程]