城市勘测
城市勘測
성시감측
URBAN GEOTECHNICAL INVESTIGATION & SURVEYING
2013年
5期
164-167
,共4页
复杂公路%地质雷达%热力管线%雷达波
複雜公路%地質雷達%熱力管線%雷達波
복잡공로%지질뢰체%열력관선%뢰체파
complex highway%ground penetrating radar (GPR)%heating pipelines%radar waves
基于地质雷达探测原理,论证地质雷达用于复杂公路管线探测的可行性。针对北京望京地区复杂公路,采用SIR-20型地质雷达对施工面地质情况、管线平面位置和埋深进行实测,探测结果表明:相对介电常数较大的目标体吸收周围介质的电磁波信号;最大反射雷达波强度出现在管线顶部;底部产生的雷达波图像中“弧形”宽度大于顶部。基于以上研究,提出针对复杂公路管线探测的设计方案及事故处理措施,同时结合现场制定地质雷达测试热力管线方案。研究结果验证了利用地质雷达探测热力管线的可行性,为后续安全动态施工设计提供了依据,也为地质雷达在复杂公路管线探测方面积累一定的经验。
基于地質雷達探測原理,論證地質雷達用于複雜公路管線探測的可行性。針對北京望京地區複雜公路,採用SIR-20型地質雷達對施工麵地質情況、管線平麵位置和埋深進行實測,探測結果錶明:相對介電常數較大的目標體吸收週圍介質的電磁波信號;最大反射雷達波彊度齣現在管線頂部;底部產生的雷達波圖像中“弧形”寬度大于頂部。基于以上研究,提齣針對複雜公路管線探測的設計方案及事故處理措施,同時結閤現場製定地質雷達測試熱力管線方案。研究結果驗證瞭利用地質雷達探測熱力管線的可行性,為後續安全動態施工設計提供瞭依據,也為地質雷達在複雜公路管線探測方麵積纍一定的經驗。
기우지질뢰체탐측원리,론증지질뢰체용우복잡공로관선탐측적가행성。침대북경망경지구복잡공로,채용SIR-20형지질뢰체대시공면지질정황、관선평면위치화매심진행실측,탐측결과표명:상대개전상수교대적목표체흡수주위개질적전자파신호;최대반사뢰체파강도출현재관선정부;저부산생적뢰체파도상중“호형”관도대우정부。기우이상연구,제출침대복잡공로관선탐측적설계방안급사고처리조시,동시결합현장제정지질뢰체측시열력관선방안。연구결과험증료이용지질뢰체탐측열력관선적가행성,위후속안전동태시공설계제공료의거,야위지질뢰체재복잡공로관선탐측방면적루일정적경험。
Based on test principle of ground penetrating radar ( GPR ) , the application feasibility for detecting the heating pipelines on complex highway is verified .In accordance with the complex highway in Wangjing area of Beijing , by using ground penetrating radar of SIR-20 to monitor the geological situation of construction surface ,the plain position of pipeline and the buried depth ,the detection shows that:the objects of bigger relative dielectric constant absorbs the e-lectromagnetic wave signal from periphery;the maximum intensity of reflection radar wave appears at the top of pipeline;the “arc” width in radar wave image produced by the bottom of pipeline is bigger than the top .Based on these studies , the design program and accident removal countermeasures for the detection of complex highway pipeline are proposed . Meanwhile ,combining with actual measurement in field , contrives scheme utilizing ground penetrating radar to detect heating pipelines .It could be verified the feasibility of testing heating pipelines with ground penetrating radar ,provides a basis for the subsequent security dynamic construction design , and accumulates some experience for ground penetrating radar detecting pipeline on complex highway .