地震层析成像的理论研究及其在岩溶发育区的应用
|
摘要
基于均匀介质中的波射线传播理论,应用直射线追踪方法进行射线走时正演计算,建立了速度模型。对模型分别进行SIRT算法和LSQR算法反演,对比分析后发现,LSQR算法在精度、效率和稳定性三个方面都能达到较好的平衡。以溶洞发育区某水电站右岸部分平硐勘探为实例,利用地震层析成像法准确探明了岩体速度分布情况和区内K25溶洞的空间分布位置,通过与其它方法结果的对比验证,表明地震层析成像法对于溶洞发育区具有分辨率高、图像直观、易于解释等优点。
Based on the wave ray propagation theory in the homogeneous medium,a velocity model was developed for the forward calculation of ray using the straight ray tracking method.The model was simulated inversely using the SIRT and LSQR algorithms.The results showed that LSQR algorithm can achieve a better balance in the accuracy,efficiency,and stability.The seismic tomography method was applied to the adit exploration on the right bank of a hydropower station in the karst development area.This method can determine the velocity distribution of the rock mass and the spatial distribution of K25 cave in the area.Compared with the results obtained from other methods,it suggested that the seismic tomography method has the advantages of high resolution,intuitive image,and easy to explain when used for the karst development area.
Based on the wave ray propagation theory in the homogeneous medium,a velocity model was developed for the forward calculation of ray using the straight ray tracking method.The model was simulated inversely using the SIRT and LSQR algorithms.The results showed that LSQR algorithm can achieve a better balance in the accuracy,efficiency,and stability.The seismic tomography method was applied to the adit exploration on the right bank of a hydropower station in the karst development area.This method can determine the velocity distribution of the rock mass and the spatial distribution of K25 cave in the area.Compared with the results obtained from other methods,it suggested that the seismic tomography method has the advantages of high resolution,intuitive image,and easy to explain when used for the karst development area.
引文
[1]杨文采.地球物理反演的理论与方法[M].北京:地质出版社,1997.(YANG Wen-cai.Theory and Methods in GeophysicalInversion[M].Beijing:The Geological Publishing House,1997.(in Chinese))
[2]胡明顺,潘冬明,李兵,等.井地地震CT成像数值模拟研究与应用[J].地球物理学进展,2009,24(4):1399-1404.(HUMing-shun,PAN Dong-ming,LI Bing,et al.Study of NumericalSimulation and Application on Well-ground Sseismic Tomo-graphy[J].Progess in Geophysics,2009,24(4):1399-1404.(inChinese))
[3]雷宛,肖宏跃,钟韬,等.灌浆质量检测的声波CT法及其与综合检测效果的对比[J].成都理工大学(自然科学版),2006,33(4):336-343.(LEI Wan,XIAO Hong-yue,ZHONG Tao,et al.Sound Wave CT of the Cement in Jection Quality Detection andComparison between Its Effect with that of the ComprehensiveDetection[J].Journal of Cheng Du University of Technology(Science&Technology Edition),2006,33(4):336-343.(inChinese))
[4]刘劲松,刘福田,刘俊,等.地震层析成像LSQR算法的并行化[J].地球物理学报,2006,49(2):540-545.(LIU Jin-song,LIUFu-tian,LIU Jun,et al.Parallel LSQR Algorithms Used inSeismic Tomography[J].Chinese Journal of Geophysics,2006,49(2):540-545.(in Chinese))
[5]刘伊克,常旭.地震层析成像反演中解的定量评价及其应用[J].地球物理学报,2000,43(2):251-256.(LIU Yi-ke,CHANG Xu.Quantitative Assessment of Inversion Solution ofSeismic Tomographys and Its Application[J].Chinese Journalof Geophsics,2000,43(2):251-256.(in Chinese))
[6]成谷,马在田,张宝金,等.地震层析成像中存在的主要问题及应对策略[J].地球物理学进展,2003,18(3):512-518.(CHENG Gu,MA Zai-tian,ZHANG Bao-jin,et al.PrimaryProblems and According Strategies in Seismic Tomography[J].Progress in Geophysics,2003,18(3):512-518.(in Chi-nese))
[7]汪兴旺,杨勤海,孙堂生,等.岩溶探测中井间地震波层析成像的应用[J].物探与化探,2008,32(1):105-108.(WANG Xing-wang,YANG Qin-hai,SUN Tang-sheng,et al.The Applicationof Well Seismic Wave Tomographic Imaging Technique toKarst Survey[J].Geophysical&Geochemical Exploration,2008,32(1):105-108.(in Chinese))
[8]井西利,杨长春,王世清.一种改进的地震反射层析成像方法[J].地球物理学报,2007,50(6):1831-1836.(JING Xi-li,YANG Chang-chun,WANG Shi-qing.A Improved SseismicReflection Tomographic Method[J].Chinese Journal of Geoph-sics,2007,50(6):1831-1836.(in Chinese))
[9]邹俊,雷宛,罗有春,等.硐间地震层析成像及其工程应用[J].工程勘察,2008(8):60-64.(ZOU Jun,LEI Wan,LUO You-chun,et al.Seismic Computerized Tomography in Adit and ItsEngineering Practice[J].Geotechnical Investigation&Survey-ing,2008(8):60-64.(in Chinese))
[10]刘盛东,李承华.地震走时层析成像算法与比较[J].中国矿业大学学报,2000,29(2):211-214.(LIU Sheng-dong,LI Cheng-hua.Algorithm and Comparison of Seismic Travel Time Com-puterized Tomography Echnique[J].Journal of China Univer-sity of Minging&Technology,2003,29(2):211-214.(in Chi-nese))
[11]李张明,练继建,戚蓝.地震波层析成像技术探测复杂岩体结构应用研究[J].岩石力学与工程学报,2004,23(1):107-111.(LI Zhang-ming,LIAN Ji-jian,QI Lan.Study on Detection ofComplex Rock Structure bu CT Technique of Seismic Wave[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):107-111.(in Chinese))
[12]杨文采,杜剑渊.层析成像新算法及其在工程检测中的应用[J].地球物理学报,1994,37(2):239-244.(YANG Wen-cai,DU Jian-yuan.A New Algorithm of Seismic Tomography withAapplication to Engineering Detections[J].Chinese Journal ofGeophsics,1994,37(2):239-244.(in Chinese))
[2]胡明顺,潘冬明,李兵,等.井地地震CT成像数值模拟研究与应用[J].地球物理学进展,2009,24(4):1399-1404.(HUMing-shun,PAN Dong-ming,LI Bing,et al.Study of NumericalSimulation and Application on Well-ground Sseismic Tomo-graphy[J].Progess in Geophysics,2009,24(4):1399-1404.(inChinese))
[3]雷宛,肖宏跃,钟韬,等.灌浆质量检测的声波CT法及其与综合检测效果的对比[J].成都理工大学(自然科学版),2006,33(4):336-343.(LEI Wan,XIAO Hong-yue,ZHONG Tao,et al.Sound Wave CT of the Cement in Jection Quality Detection andComparison between Its Effect with that of the ComprehensiveDetection[J].Journal of Cheng Du University of Technology(Science&Technology Edition),2006,33(4):336-343.(inChinese))
[4]刘劲松,刘福田,刘俊,等.地震层析成像LSQR算法的并行化[J].地球物理学报,2006,49(2):540-545.(LIU Jin-song,LIUFu-tian,LIU Jun,et al.Parallel LSQR Algorithms Used inSeismic Tomography[J].Chinese Journal of Geophysics,2006,49(2):540-545.(in Chinese))
[5]刘伊克,常旭.地震层析成像反演中解的定量评价及其应用[J].地球物理学报,2000,43(2):251-256.(LIU Yi-ke,CHANG Xu.Quantitative Assessment of Inversion Solution ofSeismic Tomographys and Its Application[J].Chinese Journalof Geophsics,2000,43(2):251-256.(in Chinese))
[6]成谷,马在田,张宝金,等.地震层析成像中存在的主要问题及应对策略[J].地球物理学进展,2003,18(3):512-518.(CHENG Gu,MA Zai-tian,ZHANG Bao-jin,et al.PrimaryProblems and According Strategies in Seismic Tomography[J].Progress in Geophysics,2003,18(3):512-518.(in Chi-nese))
[7]汪兴旺,杨勤海,孙堂生,等.岩溶探测中井间地震波层析成像的应用[J].物探与化探,2008,32(1):105-108.(WANG Xing-wang,YANG Qin-hai,SUN Tang-sheng,et al.The Applicationof Well Seismic Wave Tomographic Imaging Technique toKarst Survey[J].Geophysical&Geochemical Exploration,2008,32(1):105-108.(in Chinese))
[8]井西利,杨长春,王世清.一种改进的地震反射层析成像方法[J].地球物理学报,2007,50(6):1831-1836.(JING Xi-li,YANG Chang-chun,WANG Shi-qing.A Improved SseismicReflection Tomographic Method[J].Chinese Journal of Geoph-sics,2007,50(6):1831-1836.(in Chinese))
[9]邹俊,雷宛,罗有春,等.硐间地震层析成像及其工程应用[J].工程勘察,2008(8):60-64.(ZOU Jun,LEI Wan,LUO You-chun,et al.Seismic Computerized Tomography in Adit and ItsEngineering Practice[J].Geotechnical Investigation&Survey-ing,2008(8):60-64.(in Chinese))
[10]刘盛东,李承华.地震走时层析成像算法与比较[J].中国矿业大学学报,2000,29(2):211-214.(LIU Sheng-dong,LI Cheng-hua.Algorithm and Comparison of Seismic Travel Time Com-puterized Tomography Echnique[J].Journal of China Univer-sity of Minging&Technology,2003,29(2):211-214.(in Chi-nese))
[11]李张明,练继建,戚蓝.地震波层析成像技术探测复杂岩体结构应用研究[J].岩石力学与工程学报,2004,23(1):107-111.(LI Zhang-ming,LIAN Ji-jian,QI Lan.Study on Detection ofComplex Rock Structure bu CT Technique of Seismic Wave[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):107-111.(in Chinese))
[12]杨文采,杜剑渊.层析成像新算法及其在工程检测中的应用[J].地球物理学报,1994,37(2):239-244.(YANG Wen-cai,DU Jian-yuan.A New Algorithm of Seismic Tomography withAapplication to Engineering Detections[J].Chinese Journal ofGeophsics,1994,37(2):239-244.(in Chinese))
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