激光实时干涉计量技术和雷达差分干涉技术测量形变的对比研究及其意义
|
摘要
分别叙述了激光干涉技术和雷达差分干涉技术的原理及应用.采用激光实时干涉计量技术实验室观测试样在加压过程中的形变,研究不同破裂孕育区所表现的不同应变异常场特征.采用雷达差分干涉技术可以测量地形及地表形变,并且有西藏玛尼、张北—尚义等地震前后的形变测量结果.指出激光实时干涉计量技术与雷达差分干涉技术相似,都是以条纹变化图研究形变异常场特征.因此,对雷达差分干涉技术测量的孕震过程中的形变场,特别是临近大震发生前的形变场特征进行观测和以激光干涉技术进行实验及对比研究均将很有意义.
The principles and applications of laser real-time holographic interferometry (LRTHI) and radar differential interferometry (RDI) techniques are described in this paper, respectively. By using LRTHI, we can observe the deformation of samples under pressure in the lab and study the anomaly characteristics relating to different strain fields in different fracture-developing areas; while by using RDI, we can observe the landform and surface deformation. The results of deformation observed before and after the M_S= 7.9 Mani earthquake (Tibet) and M_S=6.2 Shangyi—Zhangbei earthquake in China are obtained. It is pointed out that LRTHI and RDI are similar, which study the characteristics of anomalous deformation field by fringe variations for both of them. Therefore, the observation of deformation field in the seismogenic process, especially in the period impending an earthquake by RDI, and the comparative study in the lab by LRTHI are of great significance.
The principles and applications of laser real-time holographic interferometry (LRTHI) and radar differential interferometry (RDI) techniques are described in this paper, respectively. By using LRTHI, we can observe the deformation of samples under pressure in the lab and study the anomaly characteristics relating to different strain fields in different fracture-developing areas; while by using RDI, we can observe the landform and surface deformation. The results of deformation observed before and after the M_S= 7.9 Mani earthquake (Tibet) and M_S=6.2 Shangyi—Zhangbei earthquake in China are obtained. It is pointed out that LRTHI and RDI are similar, which study the characteristics of anomalous deformation field by fringe variations for both of them. Therefore, the observation of deformation field in the seismogenic process, especially in the period impending an earthquake by RDI, and the comparative study in the lab by LRTHI are of great significance.
引文
[1]徐锡伟,宋方敏,杨晓平,等.2000.中国大陆地表破裂潜在震源区的地震地质学综合判定.震情研究,(1)
陈颙,阎虹.1989.实验室中岩石破裂的变形前兆[J].地球物理学报,32(增刊Ⅰ):246~252
刘国祥,丁晓利,李志伟,等.2002.ERS卫星雷达干涉测量:1999年台湾集集大地震震前和同震地表位移[J].地球物理学报,45(增刊):165~174
单新建,马瑾,宋晓宇,等.2002.利用星载D-InSAR技术获取的地表形变场研究张北—尚义地震震源破裂特征[J].中国地震,18(2):119~126
邵芸,谭衢霖,刘浩,等.2002.雷达差分干涉测量技术及其应用研究以1997西藏玛尼7.9地震区域形变测量为例[J].地球物理学报,45(增刊):205~213
王超,刘智,张红,等.2000.张北—尚义地震同震形变场雷达差分干涉测量[J].科学通报,45(23):2550~2554
吴云,韩键,于品清.1994.中长期地震危险区地壳形变场标志的研究[J].地壳形变与地震,14(2):28~34
熊秉衡,王正荣,吕晓旭,等.2002.一种新型的实验光学测量系统[J].中国激光,29(4):376~380
徐锡伟,冉勇康,周本刚,等.1998.张北—尚义地震的地震构造环境与宏观破裂[J].地震地质,20(2):135~145
许昭永,杨润海,赵晋明,等.2002a.Y形块体交界处多点大破裂的模拟实验研究[J].地球物理学报,45(增刊):214~224
许昭永,杨润海,赵晋明,等.2002b.加载破裂和卸载破裂的焦散阴影区动态特征的实验研究[J].地震学报,24(2):186~195
杨国华,巩曰沐,杨春花.1994.大同地震与华北北部地壳异态垂直运动[J].中国地震,10(1):13~18
应绍奋,张祖胜,耿士昌,等.1988.中国大陆垂直向现代地壳运动基本特征[J].中国地震,4(4):1~8
张祖胜.1990.应用大地形变测量资料估计我国大陆近几十年的地震趋势[M].北京:地震出版社,1~20
GabrielAK,GoldsteinRM,ZebkerHA.1989.Mappingsmallelevationchangesoverlargeareas:Differentialradarin-terferometry[J].JGeophysRes,94(B7):9183~9191
MassonnetD,RossiM,CarmonaC,etal.1992.Thedisplacmentfieldofthelandersearthquakemappedbyradarinter-ferometry[J].Nature,364:138~142
XuZhaoyong,YangRunhai,XiongBingheng,etal.2002a.Experimentalstudyoftheprocess,zone,nucleationzoneandplasticareaofearthquakesbytheshadowopticalmethodofcaustics[J].PureApplGeophys,159(9):1591~1966
XuZhaoyong,YangRunhai,ZhaoJinming,etal.2002b.ThedeformationandfracturefeaturesforagraniteblockwithaV-shapedenenchelonfaultduringbiaxialcompression[A].In:AndreaDonnellan,PeterMoraeds.TheThirdACESWorkshopProceedings,Hawaii,USA[C].Australia:TheUniversityofQueensland,37~42
陈颙,阎虹.1989.实验室中岩石破裂的变形前兆[J].地球物理学报,32(增刊Ⅰ):246~252
刘国祥,丁晓利,李志伟,等.2002.ERS卫星雷达干涉测量:1999年台湾集集大地震震前和同震地表位移[J].地球物理学报,45(增刊):165~174
单新建,马瑾,宋晓宇,等.2002.利用星载D-InSAR技术获取的地表形变场研究张北—尚义地震震源破裂特征[J].中国地震,18(2):119~126
邵芸,谭衢霖,刘浩,等.2002.雷达差分干涉测量技术及其应用研究以1997西藏玛尼7.9地震区域形变测量为例[J].地球物理学报,45(增刊):205~213
王超,刘智,张红,等.2000.张北—尚义地震同震形变场雷达差分干涉测量[J].科学通报,45(23):2550~2554
吴云,韩键,于品清.1994.中长期地震危险区地壳形变场标志的研究[J].地壳形变与地震,14(2):28~34
熊秉衡,王正荣,吕晓旭,等.2002.一种新型的实验光学测量系统[J].中国激光,29(4):376~380
徐锡伟,冉勇康,周本刚,等.1998.张北—尚义地震的地震构造环境与宏观破裂[J].地震地质,20(2):135~145
许昭永,杨润海,赵晋明,等.2002a.Y形块体交界处多点大破裂的模拟实验研究[J].地球物理学报,45(增刊):214~224
许昭永,杨润海,赵晋明,等.2002b.加载破裂和卸载破裂的焦散阴影区动态特征的实验研究[J].地震学报,24(2):186~195
杨国华,巩曰沐,杨春花.1994.大同地震与华北北部地壳异态垂直运动[J].中国地震,10(1):13~18
应绍奋,张祖胜,耿士昌,等.1988.中国大陆垂直向现代地壳运动基本特征[J].中国地震,4(4):1~8
张祖胜.1990.应用大地形变测量资料估计我国大陆近几十年的地震趋势[M].北京:地震出版社,1~20
GabrielAK,GoldsteinRM,ZebkerHA.1989.Mappingsmallelevationchangesoverlargeareas:Differentialradarin-terferometry[J].JGeophysRes,94(B7):9183~9191
MassonnetD,RossiM,CarmonaC,etal.1992.Thedisplacmentfieldofthelandersearthquakemappedbyradarinter-ferometry[J].Nature,364:138~142
XuZhaoyong,YangRunhai,XiongBingheng,etal.2002a.Experimentalstudyoftheprocess,zone,nucleationzoneandplasticareaofearthquakesbytheshadowopticalmethodofcaustics[J].PureApplGeophys,159(9):1591~1966
XuZhaoyong,YangRunhai,ZhaoJinming,etal.2002b.ThedeformationandfracturefeaturesforagraniteblockwithaV-shapedenenchelonfaultduringbiaxialcompression[A].In:AndreaDonnellan,PeterMoraeds.TheThirdACESWorkshopProceedings,Hawaii,USA[C].Australia:TheUniversityofQueensland,37~42
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心