沛北礦區(qū)地表沉降InSAR監(jiān)測研究
發(fā)布時間：2018-11-14 16:29
【摘要】：煤炭是我國重要的能源,大量的煤礦開采給社會的發(fā)展帶來經(jīng)濟效益的同時,也引發(fā)了地表塌陷問題。如何實時、有效的監(jiān)測煤礦開采沉降一直是人們關(guān)注的重要課題。本文在國家測繪地理信息行業(yè)公益項目及國家自然科學(xué)基金項目支持下,結(jié)合江蘇省老工業(yè)基地資源利用與生態(tài)修復(fù)協(xié)同創(chuàng)新中心工作目標(biāo),深入開展了沛北礦區(qū)地表沉降InSAR監(jiān)測研究,針對礦區(qū)沉降中心區(qū)域的沉降量較大,易造成失相干等難題,采用Stacking-InSAR技術(shù)監(jiān)測礦區(qū)大梯度形變,利用PS-InSAR技術(shù)監(jiān)測礦區(qū)沉降區(qū)域邊緣信息,將兩者融合起來,取得了成功,完整得到了沛北礦區(qū)地表沉降監(jiān)測結(jié)果。論文主要工作和成果如下:(1)討論了InSAR技術(shù)的基本原理,分析了In SAR技術(shù)測高的模型,從干涉相位組成的角度推導(dǎo)了形變相位、參考面相位、地形相位的計算公式;介紹了D-InSAR監(jiān)測不同的方法,并以“二軌法”D-InSAR為例,分析了D-InSAR技術(shù)的優(yōu)點及限制。(2)從InSAR可探測最大形變梯度、影像配準(zhǔn)、地形相位的去除三個方面分析了InSAR處理的關(guān)鍵技術(shù),采用Envisat ASAR數(shù)據(jù)與ALOS PALSAR數(shù)據(jù)對比,推導(dǎo)出了利用L波段的PALSAR數(shù)據(jù)能夠監(jiān)測到更大的形變梯度,使用夏季和冬季的數(shù)據(jù)對比,從數(shù)據(jù)選取的角度來提高相干性;采用偏移量追蹤法代替常規(guī)的配準(zhǔn)方法進行配準(zhǔn),提高了配準(zhǔn)精度,用實例表明偏移量追蹤法比最大干涉頻譜法總體高出了0.1~0.15個像元的精度;分別用SRTM3 DEM和ASTER GDEM進行去地形相位處理工作,采用SRTM3 DEM的數(shù)據(jù)處理結(jié)果更加精確。(3)討論了PS-InSAR和Stacking-InSAR的原理與工作流程,從主影像的選取、PS點的識別兩個方面分析了PS-InSAR的關(guān)鍵技術(shù)。采用PS-InSAR和Stacking-InSAR分別對實驗數(shù)據(jù)進行處理,得到了研究區(qū)的沉降信息。PS-InSAR獲得的平均沉降速率分布在-78~12mm/a之間,Stacking-InSAR獲得的平均沉降速率分布在-1.4~0.4m/a之間,使用Stacking-InSAR能夠成功的監(jiān)測到米級的大量級形變值,較好解決了礦區(qū)沉降中心大梯度形變監(jiān)測難題。(4)分析了PS-InSAR與Stacking-InSAR的優(yōu)缺點,充分考慮礦區(qū)地表沉降特點,提出了沛北礦區(qū)地表沉降PS-InSAR和Stacking-InSAR融合監(jiān)測方法,即利用Stacking-InSAR監(jiān)測礦區(qū)沉降中心區(qū)域,用PS-InSAR對沉降邊緣地區(qū)厘米級微小形變進行監(jiān)測,完整得到了沛北礦區(qū)地表沉降監(jiān)測結(jié)果。
[Abstract]:Coal is an important energy source in China. A large amount of coal mining brings economic benefits to the development of society, but also causes the problem of surface subsidence. How to monitor coal mining subsidence in real-time and effectively is always an important subject that people pay attention to. Supported by the national public welfare project of surveying and mapping geographic information industry and the national natural science fund project, this paper combines the work goal of the cooperative innovation center of resource utilization and ecological restoration in the old industrial base of Jiangsu province. In this paper, the InSAR monitoring of surface subsidence in Peibei mining area is carried out in depth. Aiming at the problems of large settlement amount and easy to cause incoherence in the subsidence center of mining area, Stacking-InSAR technique is used to monitor the large gradient deformation in mining area. The PS-InSAR technique is used to monitor the edge information of the subsidence area in the mining area. The two methods are combined and the results of surface subsidence monitoring in Peibei mining area are obtained. The main work and achievements are as follows: (1) the basic principle of InSAR technology is discussed, the model of In SAR height measurement is analyzed, and the calculation formulas of deformation phase, reference plane phase position and topographic phase are derived from the angle of interference phase composition. This paper introduces different methods of D-InSAR monitoring, and takes "two-track method" D-InSAR as an example, analyzes the advantages and limitations of D-InSAR technology. (2) from InSAR, the maximum deformation gradient can be detected, and the image registration. The key techniques of InSAR processing are analyzed in three aspects of terrain phase removal. By comparing Envisat ASAR data with ALOS PALSAR data, the larger deformation gradient can be detected by using L-band PALSAR data, and the data in summer and winter are compared. Improving coherence from the angle of data selection; The migration tracking method is used to replace the conventional registration method to improve the registration accuracy. The example shows that the migration tracking method is better than the maximum interferometric spectrum method in the accuracy of 0.15 pixels. Using SRTM3 DEM and ASTER GDEM to process the terrain phase, the data processing results of SRTM3 DEM are more accurate. (3) the principle and workflow of PS-InSAR and Stacking-InSAR are discussed, and the selection of main image is discussed. The key technologies of PS-InSAR are analyzed in two aspects of PS point recognition. The experimental data are processed by PS-InSAR and Stacking-InSAR respectively, and the settlement information of the study area is obtained. The average settlement rate obtained by PS-InSAR is from-78~12mm/a to-78~12mm/a. The average settlement rate obtained by Stacking-InSAR is in the range of-1.4~0.4m/a. Using Stacking-InSAR, a large number of deformation values of meters can be successfully monitored. The problem of large gradient deformation monitoring in subsidence center of mining area is solved well. (4) the advantages and disadvantages of PS-InSAR and Stacking-InSAR are analyzed, the characteristics of ground subsidence in mining area are fully considered, and the fusion monitoring method of PS-InSAR and Stacking-InSAR in Peibei mining area is put forward. That is to say, Stacking-InSAR is used to monitor the subsidence center of the mining area, and PS-InSAR is used to monitor the micro-deformation of centimeter level in the margin of subsidence, and the monitoring results of surface subsidence in Peibei mining area are obtained.
【學(xué)位授予單位】：中國礦業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TD326
本文編號：2331701
[Abstract]:Coal is an important energy source in China. A large amount of coal mining brings economic benefits to the development of society, but also causes the problem of surface subsidence. How to monitor coal mining subsidence in real-time and effectively is always an important subject that people pay attention to. Supported by the national public welfare project of surveying and mapping geographic information industry and the national natural science fund project, this paper combines the work goal of the cooperative innovation center of resource utilization and ecological restoration in the old industrial base of Jiangsu province. In this paper, the InSAR monitoring of surface subsidence in Peibei mining area is carried out in depth. Aiming at the problems of large settlement amount and easy to cause incoherence in the subsidence center of mining area, Stacking-InSAR technique is used to monitor the large gradient deformation in mining area. The PS-InSAR technique is used to monitor the edge information of the subsidence area in the mining area. The two methods are combined and the results of surface subsidence monitoring in Peibei mining area are obtained. The main work and achievements are as follows: (1) the basic principle of InSAR technology is discussed, the model of In SAR height measurement is analyzed, and the calculation formulas of deformation phase, reference plane phase position and topographic phase are derived from the angle of interference phase composition. This paper introduces different methods of D-InSAR monitoring, and takes "two-track method" D-InSAR as an example, analyzes the advantages and limitations of D-InSAR technology. (2) from InSAR, the maximum deformation gradient can be detected, and the image registration. The key techniques of InSAR processing are analyzed in three aspects of terrain phase removal. By comparing Envisat ASAR data with ALOS PALSAR data, the larger deformation gradient can be detected by using L-band PALSAR data, and the data in summer and winter are compared. Improving coherence from the angle of data selection; The migration tracking method is used to replace the conventional registration method to improve the registration accuracy. The example shows that the migration tracking method is better than the maximum interferometric spectrum method in the accuracy of 0.15 pixels. Using SRTM3 DEM and ASTER GDEM to process the terrain phase, the data processing results of SRTM3 DEM are more accurate. (3) the principle and workflow of PS-InSAR and Stacking-InSAR are discussed, and the selection of main image is discussed. The key technologies of PS-InSAR are analyzed in two aspects of PS point recognition. The experimental data are processed by PS-InSAR and Stacking-InSAR respectively, and the settlement information of the study area is obtained. The average settlement rate obtained by PS-InSAR is from-78~12mm/a to-78~12mm/a. The average settlement rate obtained by Stacking-InSAR is in the range of-1.4~0.4m/a. Using Stacking-InSAR, a large number of deformation values of meters can be successfully monitored. The problem of large gradient deformation monitoring in subsidence center of mining area is solved well. (4) the advantages and disadvantages of PS-InSAR and Stacking-InSAR are analyzed, the characteristics of ground subsidence in mining area are fully considered, and the fusion monitoring method of PS-InSAR and Stacking-InSAR in Peibei mining area is put forward. That is to say, Stacking-InSAR is used to monitor the subsidence center of the mining area, and PS-InSAR is used to monitor the micro-deformation of centimeter level in the margin of subsidence, and the monitoring results of surface subsidence in Peibei mining area are obtained.
【學(xué)位授予單位】：中國礦業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TD326
【參考文獻】
相關(guān)期刊論文 前3條
1 楊紅磊;彭軍還;;基于DInSAR和MAI技術(shù)揭示地震三維形變場[J];地球物理學(xué)進展;2014年06期
2 董玉森;Ge Linlin;Chang Hsingchun;張志;;基于差分雷達干涉測量的礦區(qū)地面沉降監(jiān)測研究[J];武漢大學(xué)學(xué)報(信息科學(xué)版);2007年10期
3 吳立新,高均海,葛大慶,殷作如,鄧智毅,劉宏軍;基于D-InSAR的煤礦區(qū)開采沉陷遙感監(jiān)測技術(shù)分析[J];地理與地理信息科學(xué);2004年02期
，本文編號：2331701
本文鏈接：http://sikaile.net/kejilunwen/kuangye/2331701.html
最近更新
教材專著
