本文關(guān)鍵詞：市政管線的電磁探測方法研究與應(yīng)用　出處：《成都理工大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 地下管線探測 電磁法 電磁波法 正演

【摘要】：隨著城市建設(shè)的高速發(fā)展,城市地下空間的建設(shè)也開始了高速發(fā)展。地鐵、隧道、管廊等已成為一個城市的基礎(chǔ)配置。由于歷史發(fā)展等原因,地下管線給城市地下基礎(chǔ)建設(shè)遺留下了很多問題。為適應(yīng)城市的建設(shè),急需開展城市地下管線基礎(chǔ)信息普查工作。地球物理勘探方法是目前地下管線探測的主要方法之一,由于這類方法具有快速、無損、非開挖等優(yōu)點(diǎn),因此得到了越來越廣泛的應(yīng)用。經(jīng)調(diào)查,城市地下管線可以分為兩大類,具有導(dǎo)電性的金屬管線與弱導(dǎo)電性的非金屬管線,通過各自的物理敏感性參數(shù)優(yōu)選了兩種最合適的地球物理勘探方法,對市政管線進(jìn)行了具有針對性的研究與應(yīng)用。對于金屬管線來說,電磁法是最直接最便捷的一種地球物理勘探方法,具有簡單、方便、成本低、效率高、精度準(zhǔn)確等優(yōu)點(diǎn)。本文通過電磁法的理論探討和野外工作實踐,對基于電磁法原理的管線儀進(jìn)行了定位、定深等方法的深入研究,歸納總結(jié)了利用管線儀進(jìn)行管線探測的方法技術(shù),并在研究區(qū)對該方法進(jìn)行了試驗,驗證了其方法的有效性。對于非金屬管線來說,電磁波法是最為簡單、高效、無損的方法,但由于其能量衰減快,地下環(huán)境復(fù)雜等使電磁波法的應(yīng)用受到了一些限制,在實際的工作中還存在了許多問題等待解決。本文通過地質(zhì)雷達(dá)探測管線的理論探討,利用電磁波正演模擬技術(shù),得到了各種地下管線的正演成像剖面,為管線探測中的實際資料解釋提供了依據(jù)。同時利用已知管線的信息,研究地質(zhì)雷達(dá)響應(yīng)特征,指導(dǎo)管線探測與識別,通過類似地震資料處理方法,對雷達(dá)資料進(jìn)行了高分辨率處理,提高管線探測中的解釋精度。將總結(jié)出的方法技術(shù)及流程應(yīng)用到了重慶市某地區(qū)管線普查項目中,并取得了良好的應(yīng)用效果,順利地完成了普查工作。
[Abstract]:With the rapid development of urban construction, the construction of urban underground space has begun to develop at a high speed. Subway, tunnel, pipe corridor and so on have become the basic configuration of a city, due to historical development and other reasons. The underground pipeline has left a lot of problems to the urban underground infrastructure construction, in order to adapt to the construction of the city. Geophysical exploration method is one of the main methods of underground pipeline exploration at present, because this method has the advantages of fast, nondestructive, non-excavation and so on. As a result, it has been used more and more widely. Through investigation, the underground pipelines can be divided into two categories: metal pipelines with electrical conductivity and non-metal pipelines with weak conductivity. Two kinds of most suitable geophysical exploration methods are selected according to their physical sensitivity parameters, and the research and application of municipal pipelines are carried out, especially for metal pipelines. Electromagnetic method is the most direct and convenient geophysical exploration method, which has the advantages of simplicity, convenience, low cost, high efficiency, accuracy and so on. In this paper, the location and depth determination methods of the pipeline instrument based on the electromagnetic method are studied, and the method and technology of pipeline detection by using the pipeline instrument are summarized and tested in the research area. The effectiveness of the method is verified. Electromagnetic wave method is the most simple, efficient and lossless method for non-metal pipeline, but its energy decay is fast. The application of electromagnetic wave method is limited by the complex underground environment, and there are still many problems to be solved in the practical work. The forward imaging profiles of various underground pipelines are obtained by using electromagnetic wave forward modeling technology, which provides a basis for the interpretation of actual data in pipeline detection. At the same time, the information of known pipelines is used. The response characteristics of GPR are studied to guide the pipeline detection and identification. The radar data are processed with high resolution through similar seismic data processing methods. In order to improve the interpretation accuracy of pipeline detection, the method, technology and flow are applied to the pipeline survey project in a certain area of Chongqing, and the good application effect is obtained, and the census work is successfully completed.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：P631.325

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本文編號：1431598