京津高铁沿线地面沉降特征(北京段)
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摘要
针对京津高铁(北京段)存在的地面沉降问题,采用时序合成孔径雷达干涉技术获取研究区2010—2015年间地面沉降信息,结合地下水实测数据,采用交叉小波的方法探讨不同层位地下水位变化与地面沉降的关系,最后结合研究区内可压缩黏土层分布情况分析地面沉降与可压缩黏土层厚度的关系。结果表明:研究区年均沉降速率最大值为121 mm/a;地面沉降滞后承压水位变化9～10个月,滞后潜水位变化4个月;位于同个冲洪积扇控制范围的地面沉降速率随可压缩黏土层厚度的增加而增大。本研究对于科学有效防控不均匀地面沉降对线状地物的损害具有实用意义。
In this paper,according to the land subsidence problem existing in the Beijing-Tianjin inter-city railway(Beijing section),time-series synthetic aperture Radar interferometry was used to obtain the land subsidence information from 2010 to 2015.Combined with the measured data of groundwater,the relationship between the groundwater level changes and the land subsidence at different layers was studied by using the cross wavelet method.Finally,the relationship between land subsidence and compressible clay thickness was analyzed based on the distribution of compressible clay in the study area.The result showed that average annual maximum sedimentation rate in the study area was 121 mm/a,that the ground subsidence lagged the pressure level of the pressure level by 9 ～ 10 months,with the lag time of the submersible being 4 months,and that the ground subsidence rate in the control range of the same flushing fan increased with the thickness of compressible clay layer.This research is of great significance for the scientific effective prevention and control of uneven ground settlement on linear ground objects.
In this paper,according to the land subsidence problem existing in the Beijing-Tianjin inter-city railway(Beijing section),time-series synthetic aperture Radar interferometry was used to obtain the land subsidence information from 2010 to 2015.Combined with the measured data of groundwater,the relationship between the groundwater level changes and the land subsidence at different layers was studied by using the cross wavelet method.Finally,the relationship between land subsidence and compressible clay thickness was analyzed based on the distribution of compressible clay in the study area.The result showed that average annual maximum sedimentation rate in the study area was 121 mm/a,that the ground subsidence lagged the pressure level of the pressure level by 9 ～ 10 months,with the lag time of the submersible being 4 months,and that the ground subsidence rate in the control range of the same flushing fan increased with the thickness of compressible clay layer.This research is of great significance for the scientific effective prevention and control of uneven ground settlement on linear ground objects.
引文
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[19]林健.北京市城近郊区地下水污染演变分析研究[D].长春:吉林大学,2004.Lin J.The Analysis of Pollution History for the Groundwater in Urban and Suburb Area of Beijing[D].Changchun:Jilin University,2004.
[20]罗勇.北京地面沉降发展新趋势初步分析[J].上海国土资源,2017,38(2):13-17.Luo Y.Research on the new trends of Beijing land subsidence[J].Shanghai Land and Resources,2017,38(2):13-17.
[21]Grinsted A,Moore J C,Jevrejeva S.Application of the cross wavelet transform and wavelet coherence to geophysical time series[J].Nonlinear Processes in Geophysics,2004,11(5/6):561-566.
[22]姜媛,杨艳,王海刚,等.北京平原区地面沉降的控制与影响因素[J].上海国土资源,2014,26(4):130-133.Jiang Y,Yang Y,Wang H G,et al.Factors controlling land subsidence on the Beijing plain[J].Shanghai Land and Resources.2014,26(4):130-133.
[2]Yang Y,Jia S.Situation and countermeasures of prevention&control on land subsidence in Beijing[J].Urban Geology,2013,8(4):6-10.
[3]Duan G Y,Gong H L,Liu H H,et al.Monitoring and analysis of land subsidence along Beijing-Tianjin inter-city railway[J].Journal of the Indian Society of Remote Sensing,2016,44(6):1-17.
[4]袁怀宇.公路工程中沉降板的应用[J].东北公路,2003,26(2):79-80.Yuan H Y.Settlement plate employing in highway engineering[J].Northeastern Highway,2003,26(2):79-80.
[5]花梅.高速铁路路基常用沉降变形监测方法浅析[J].铁道标准设计,2014,58(s1):122-125.Hua M.Analysis of common settlement deformation monitoring methods for subgrade of high speed railway[J].Railway Standard Design,2014,58(s1):122-125.
[6]Tarchi D,Rudolf H,Luzi G,et al.SAR interferometry for structural changes detection:A demonstration test on a dam[C]//Internationl Geoscience and Remote Sensing Symposium.IEEE,1999.
[7]Ge D Q,Zhang L,Wang Y,et al.Merging multi-track PSI result for land subsidence mapping over very extended area[C]//International Geoscience and Remote Sensing Symposium.IEEE,2010:3522-3525.
[8]冷长明.高速铁路地基不均匀沉降的因素及机理分析[J].高速铁路技术,2011,2(3):5-8.Leng C M.Analysis of the factor and mechanism of uneven settlement of high-speed raiway subgrade[J].High Speed Railway Technology,2011,2(3):5-8.
[9]高亮,赵磊,曲村,等.路基上CRTSⅢ型板式无砟轨道设计方案比较分析[J].同济大学学报(自然科学版),2013,41(6):848-855.Gao L,Zhao L,Qu C,et al.Analysis on design scheme of CRTSⅢslab track structure on road[J].Journal of Tongji University(Natural Science),2013,41(6):848-855.
[10]刘晓龙,张永红,李英会,等,基于时间序列Terra SAR-X影像的线状地物沉降监测试验研究[J].遥感信息,2013,28(4):57-62.Liu X L,Zhang Y H,Li Y H,et al.Exploration of subsidence along linear engineering structures on time series of Terra SAR-X images[J].Remote Sensing Information,2013,28(4):57-62.
[11]王荣,杨艳,田芳,等.高速铁路区域地面沉降监测体系构建[J].上海国土资源,2014,35(2):17-20.Wang R,Yang Y,Tian F,et al.Construction of a monitoring system for regional land subsidence affecting high-speed railways[J].Shanghai Land and Resources,2014,35(2):17-20.
[12]贾三满,王海刚,赵守生,等.北京地面沉降机理研究初探[J].城市地质,2007,2(1):20-26.Jia S M,Wang H G,Zhao S H,et al.A tentative study of the mechanism of land subsidence in Beijing[J].City Geology,2007,2(1):20-26.
[13]陈蓓蓓.北京市典型地区地面沉降演化过程与机理分析[M].北京:中国环境出版社,2015.Chen B B.The Evolution Process and Mechanism of Land Subsidence in Typical Area,Beijing[M].Beijing:China Environmental Science Press,2015.
[14]Hooper A J.Persistent Scatter Radar Interferometry for Crustal Deformation Studies and Modeling of Volcanic Deformation[D].Stanford:Stanford University,2006.
[15]刘一霖,张勤,黄海军,等.矿区地表大量级沉陷形变短基线集InSAR监测分析[J].国土资源遥感,2017,29(2):144-151.doi:10.6046/gtzyyg.2017.02.21.Liu Y L,Zhang Q,Huang H J,et al.Monitoring and analysis large scale land subsidence over the mining area using small baseline subset InSAR[J].Remote Sensing for Land and Resources,2017,29(2):144-151.doi:10.6046/gtzyyg.2017.02.21.
[16]刘志敏,李永生,张景发,等.基于SBAS-InSAR的长治矿区地表形变监测[J].国土资源遥感,2014,26(3):37-42.doi:10.6046/gtzyyg.2014.03.06.Liu Z M,Li Y S,Zhang J F et al.An analysis of surface deformation in the Changzhi mining area using small baseline InSAR[J].Remote Sensing for Land and Resources,2014,26(3):37-42.doi:10.6046/gtzyyg.2014.03.06.
[17]王文圣,丁晶,向红莲.小波分析在水文学中的应用研究及展望[J].水科学进展,2002,13(4):515-520.Wang W S,Ding J,Xiang H L.Application and prospect of wavelet analysis in hydrology[J].Advances in Water Science,2002,13(4):515-520.
[18]郭良迁,薄万举,杨国华.华北地区断裂带的现代形变特征[J].大地测量与地球动力学,2003,23(2):29-36.Guo L Q,Bo W J,Yang G H.Characteristics of current deformation of fault beltisin north China[J].Journal of Geodesy and Geodynamics,2003,23(2):29-36.
[19]林健.北京市城近郊区地下水污染演变分析研究[D].长春:吉林大学,2004.Lin J.The Analysis of Pollution History for the Groundwater in Urban and Suburb Area of Beijing[D].Changchun:Jilin University,2004.
[20]罗勇.北京地面沉降发展新趋势初步分析[J].上海国土资源,2017,38(2):13-17.Luo Y.Research on the new trends of Beijing land subsidence[J].Shanghai Land and Resources,2017,38(2):13-17.
[21]Grinsted A,Moore J C,Jevrejeva S.Application of the cross wavelet transform and wavelet coherence to geophysical time series[J].Nonlinear Processes in Geophysics,2004,11(5/6):561-566.
[22]姜媛,杨艳,王海刚,等.北京平原区地面沉降的控制与影响因素[J].上海国土资源,2014,26(4):130-133.Jiang Y,Yang Y,Wang H G,et al.Factors controlling land subsidence on the Beijing plain[J].Shanghai Land and Resources.2014,26(4):130-133.
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