基于全极化探地雷达偏移算法的LNAPL污染土壤探测研究
|
摘要
本文将极化偏移算法应用于轻非水相液体(LNAPL)污染土壤的探测研究。采用石英砂作为土壤,柴油作为LNAPL污染物,在实验室建立LNAPL污染土壤模型。利用全极化探地雷达系统对污染土壤进行探测。对预处理后的数据进行极化偏移成像后,LNAPL污染范围可以被清晰地识别。通过对包含极化特征的信息进行重构和成像,提高了探地雷达的探测能力。
In this paper,the polarimetric migration method is applied to image LNAPL contamination in soil.A model of LNAPL contaminated soil is set up by using quartz and diesel in the laboratory and the detection is conducted by a full polarimetric GPR system. A full polarimetric GPR system is used to detect LNAPL contaminated soils. The range of the LNAPL contamination can be imaged clearly after polarimetric migration is applied to the pre-processed data. By reconstructing and imaging the data containing the polarimetric information,the detection ability of GPR can be improved.
In this paper,the polarimetric migration method is applied to image LNAPL contamination in soil.A model of LNAPL contaminated soil is set up by using quartz and diesel in the laboratory and the detection is conducted by a full polarimetric GPR system. A full polarimetric GPR system is used to detect LNAPL contaminated soils. The range of the LNAPL contamination can be imaged clearly after polarimetric migration is applied to the pre-processed data. By reconstructing and imaging the data containing the polarimetric information,the detection ability of GPR can be improved.
引文
[1]Kram,M L.Complex NAPL site characterization using fluorescence.Part 1:selection of excitation wavelength based on NAPL composition[J].Soil and Sediment Contamination,2004,13:103-118.
[2]韩宝平,王小英,朱雪强,等.某市岩溶地下水四氯化碳污染特征研究[J].环境科学学报,2004,24(6):982-988.HAN Bao-ping,WANG Xiao-ying,ZHU Xue-qiang,et al.Groundwater contamination by carbon tetrachloride in Karstic area in China[J].Acta Scientiae Circumstantiae,2004,24(6):982-988.
[3]任磊.石油勘探开发中的石油类污染及其监测分析技术[J].中国环境监测,2004,20(3):44-47.REN Lei.The pollution status and determination methods of petroleum contaminations during the processes of oil exploration[J].Environmental Monitoring in China,2004,20(3):44-47.
[4]朱雪强,韩宝平,尹儿琴.地下水DNAPLs污染的研究进展[J].四川环境,2005,24(2):65-70.ZHU Xue-qiang,HAN Bao-ping,YIN Er-qin.Research progress on groundwater contamination by DNAPLs[J].Sichuan Environment,2005,24(2):65-70.
[5]Benson A K.Applications of ground penetrating radar in assessing some geological hazards:examples of groundwater contamination,faults,cavities[J].Journal of Applied Geophysics,1995,33(1/3):177-193.
[6]Redman J D,Kueper B H,Annan A P.Dielectric stratigraphy of a DNAPL spill and implications for detection with ground penetrating radar[J].Ground Water Management,1991(5):1017-1030.
[7]Sauck W A,Atekwana E A,Nash M S.Elevated conductivities associated with an LNAPL plum imaged by integrated geophysical techniques[J].Journal of Environmental and Engineering Geophysics,1998,2:203-212.
[8]O'Neill K.Discrimination of UXO in soil using broadband polarimetric GPR backscatter[J].IEEE Transactions on Geoscience and Remote Sensing,2001,39(2):356-367.
[9]Cassidy N J.Evaluating LNAPL contamination using GPR signal attenuation analysis and dielectric property measurements:practical implications for hydrological studies[J].Journal of Contaminant Hydrology,2007,94(1/2):49-75.
[10]Mélanie Longpré-Girard,Richard M,Thomas R,et al.2D sandbox experiments of surfactant foams for mobility control and enhanced LNAPL recovery in layered soils[J].Journal of Contaminant Hydrology,2016,193:63-73.
[11]尤志鑫,冯晅,鹿琪.LNAPL污染物及水含量对石英砂介电常数的影响[J].世界地质,2015,34(2):551-556.YOU Zhi-xin,FENG Xuan,LU Qi.Influence of LNAPL contamination and water content to dielectric constant of quartz sand[J].Global Geology,2015,34(2):551-556.
[12]侯晓东,郭秀军,贾永刚,等.基于探地雷达回波信号获取污染土壤中污染物含量的研究进展[J].地球物理学进展,2008,23(3):962-968.HOU Xiao-dong,GUO Xiu-jun,JIA Yong-gang,et al.Progress on detection of contamination content in the contaminated soilbased on Ground Penetrating Radar[J].Progress In Geophysics,2008,23(3):962-968.
[13]李晔,鹿琪,刘财.LNAPLs迁移的数值模拟和土壤介电性质的变化分析[J].地球物理学进展,2014,29(2):936-943.LI Ye,LU Qi,LIU Cai.Numerical simulation of LNAPLs migration and analysis on variation of soil dielectric properties[J].Progress in Geophysics(in Chinese),2014,29(2):936-943.
[14]王春辉.探地雷达方法测量近地表含水量及污染物探测研究:硕士学位论文[D].长春:吉林大学,2007.WANG Chun-hui.Study on near surface water content measurement by ground penetrating radar:master's degree thesis[D].Changchun:Jilin University,2007.
[15]冯晅,邹立龙,刘财,等.全极化探地雷达正演模拟[J].地球物理学报,2011,54(2):349-357.FENG Xuan,ZOU Li-Long,LIU Cai,et al.Forward modeling for full-polarimetric ground penetrating radar[J].Chinese Progress In Geophysics,2011,54(2):349-357.
[16]Feng X,Yu Y,Liu C,et al.Subsurface polarimetric migration imaging for full polarimetric ground-penetrating radar[J].Geophysicl Journal International,2015,202:1324-1338.
[17]Feng X,Sato M.Pre-stack migration applied to GPR for landmine detection[J].Inverse Problems,2004,20:S99-S115.
[18]Feng X,Sato M,LIU C,et al.CMP antenna array GPR and signal-to-clutter ratio improvement[J].IEEE Geoscinece and Remote Sensing Letters,2009,6(1):23-27.
[19]Lee J S,Pottier E.Polarimetric radar imaging:from basics to applications[J].CRC Press,2009,33(1):333-334.
[20]李洪丽,鹿琪,冯晅,等.LNAPL污染土壤介电性质的实验研究:以石英砂为例[J].世界地质,2012,31(2):426-432.LI Hong-li,LU Qi,FENG Xuan,et al.Experiment on dielectric property of LNAPL contaminated soil:a case study in quartz sand[J].Global Geology,2012,31(2):426-432.
[2]韩宝平,王小英,朱雪强,等.某市岩溶地下水四氯化碳污染特征研究[J].环境科学学报,2004,24(6):982-988.HAN Bao-ping,WANG Xiao-ying,ZHU Xue-qiang,et al.Groundwater contamination by carbon tetrachloride in Karstic area in China[J].Acta Scientiae Circumstantiae,2004,24(6):982-988.
[3]任磊.石油勘探开发中的石油类污染及其监测分析技术[J].中国环境监测,2004,20(3):44-47.REN Lei.The pollution status and determination methods of petroleum contaminations during the processes of oil exploration[J].Environmental Monitoring in China,2004,20(3):44-47.
[4]朱雪强,韩宝平,尹儿琴.地下水DNAPLs污染的研究进展[J].四川环境,2005,24(2):65-70.ZHU Xue-qiang,HAN Bao-ping,YIN Er-qin.Research progress on groundwater contamination by DNAPLs[J].Sichuan Environment,2005,24(2):65-70.
[5]Benson A K.Applications of ground penetrating radar in assessing some geological hazards:examples of groundwater contamination,faults,cavities[J].Journal of Applied Geophysics,1995,33(1/3):177-193.
[6]Redman J D,Kueper B H,Annan A P.Dielectric stratigraphy of a DNAPL spill and implications for detection with ground penetrating radar[J].Ground Water Management,1991(5):1017-1030.
[7]Sauck W A,Atekwana E A,Nash M S.Elevated conductivities associated with an LNAPL plum imaged by integrated geophysical techniques[J].Journal of Environmental and Engineering Geophysics,1998,2:203-212.
[8]O'Neill K.Discrimination of UXO in soil using broadband polarimetric GPR backscatter[J].IEEE Transactions on Geoscience and Remote Sensing,2001,39(2):356-367.
[9]Cassidy N J.Evaluating LNAPL contamination using GPR signal attenuation analysis and dielectric property measurements:practical implications for hydrological studies[J].Journal of Contaminant Hydrology,2007,94(1/2):49-75.
[10]Mélanie Longpré-Girard,Richard M,Thomas R,et al.2D sandbox experiments of surfactant foams for mobility control and enhanced LNAPL recovery in layered soils[J].Journal of Contaminant Hydrology,2016,193:63-73.
[11]尤志鑫,冯晅,鹿琪.LNAPL污染物及水含量对石英砂介电常数的影响[J].世界地质,2015,34(2):551-556.YOU Zhi-xin,FENG Xuan,LU Qi.Influence of LNAPL contamination and water content to dielectric constant of quartz sand[J].Global Geology,2015,34(2):551-556.
[12]侯晓东,郭秀军,贾永刚,等.基于探地雷达回波信号获取污染土壤中污染物含量的研究进展[J].地球物理学进展,2008,23(3):962-968.HOU Xiao-dong,GUO Xiu-jun,JIA Yong-gang,et al.Progress on detection of contamination content in the contaminated soilbased on Ground Penetrating Radar[J].Progress In Geophysics,2008,23(3):962-968.
[13]李晔,鹿琪,刘财.LNAPLs迁移的数值模拟和土壤介电性质的变化分析[J].地球物理学进展,2014,29(2):936-943.LI Ye,LU Qi,LIU Cai.Numerical simulation of LNAPLs migration and analysis on variation of soil dielectric properties[J].Progress in Geophysics(in Chinese),2014,29(2):936-943.
[14]王春辉.探地雷达方法测量近地表含水量及污染物探测研究:硕士学位论文[D].长春:吉林大学,2007.WANG Chun-hui.Study on near surface water content measurement by ground penetrating radar:master's degree thesis[D].Changchun:Jilin University,2007.
[15]冯晅,邹立龙,刘财,等.全极化探地雷达正演模拟[J].地球物理学报,2011,54(2):349-357.FENG Xuan,ZOU Li-Long,LIU Cai,et al.Forward modeling for full-polarimetric ground penetrating radar[J].Chinese Progress In Geophysics,2011,54(2):349-357.
[16]Feng X,Yu Y,Liu C,et al.Subsurface polarimetric migration imaging for full polarimetric ground-penetrating radar[J].Geophysicl Journal International,2015,202:1324-1338.
[17]Feng X,Sato M.Pre-stack migration applied to GPR for landmine detection[J].Inverse Problems,2004,20:S99-S115.
[18]Feng X,Sato M,LIU C,et al.CMP antenna array GPR and signal-to-clutter ratio improvement[J].IEEE Geoscinece and Remote Sensing Letters,2009,6(1):23-27.
[19]Lee J S,Pottier E.Polarimetric radar imaging:from basics to applications[J].CRC Press,2009,33(1):333-334.
[20]李洪丽,鹿琪,冯晅,等.LNAPL污染土壤介电性质的实验研究:以石英砂为例[J].世界地质,2012,31(2):426-432.LI Hong-li,LU Qi,FENG Xuan,et al.Experiment on dielectric property of LNAPL contaminated soil:a case study in quartz sand[J].Global Geology,2012,31(2):426-432.