摘要
城市地下管道探测精度不足制约着市政设施安全运维与地下空间开发。本文针对复杂城市环境下的多源干扰问题,提出融合电磁场、重力场及地震波场等多源物理场数据的耦合反演技术,通过建立多物理场联合约束模型与自适应正则化反演算法,突破传统单一物理场探测的局限性。工程验证表明,该方法可实现埋深识别精度±0.1m、水平定位误差±0.2m的技术指标,较传统单一物理场探测方法水平定位精度提升40%,在管径≤300mm的非金属管道识别中表现出显著优势,且对5m范围内电力线缆干扰具有良好抑制效果。研究成果为高精度城市地下管线普查、老旧管网修复提供了新的技术路径,其多源数据融合框架对城市地下空间数字化治理具有推广价值。
The lack of detection accuracy of urban underground pipelines restricts the safe operation and maintenance of municipal facilities and the development of underground space.Aiming at the problem of multi-source interference in complex urban environment,this paper proposes a coupled inversion technology that integrates the data of multiple physical fields,such as electromagnetic field,gravitational field and seismic wave field.By establishing a joint constraint model of multiple physical fields and an adaptive regularization inversion algorithm,the limitation of traditional single physical field detection is solved.Engineering verification shows that this method can achieve the technical indicators of buried depth identification accuracy of±0.1m and horizontal positioning error of±0.2m,which improves the horizontal positioning accuracy by 40%,compared with the traditional single physical field detection method.It has significant advantages in the identification of non-metal pipes with diameter≤300mm,and has better suppression effect on power cable interference within 5m.The research results provide a new technical path for high-precision urban underground pipeline survey and old pipe network repair,and its multi-source data fusion framework could promote the digital governance of urban underground space.
作者
刘光勇
LIU Guangyong(Fujian Quanzhou Survey and Design Institute Co.,Ltd,Quanzhou 362012)
出处
《黑龙江国土资源》
2025年第3期52-59,共8页
Heilongjiang land and Resources
关键词
城市地下管道物探
多物理场耦合
反演技术
探测精度
urban underground pipeline geophysical exploration
multi-physical field coupling
inversion technology
detection accuracy
