地震勘探方法在薄覆盖层区城市活断裂探测中的应用

doi:10.11720/wtyht.2019.0066

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Abstract

Currently,seismic explorations is the main geophysical prospecting method for detecting active fault lines in cities.In the detection of the active faults in Xinyi City,the wave reflected from the top of bed rock can only be recognized using P-wave reflection due to the thin overburden in local area.In general,it is difficult to determine the exact location of a fault and the burial depth of the upper breaking point based on the change of a single coaxial axis in seismic reflection profile.The method of S-wave reflection is characterized by high resolution and strong stratification capability,which can make up for the shortcomings of P-wave reflection exploration,thus improving the precision of exploration.In addition,there exist strata of two different ages on both sides of some faults in this exploration area,and there are obvious differences in velocity between them.The seismic velocity profile obtained by seismic tomography can reflect the changes of underground velocity structures and also reveal the existence of shallow faults.Through this comparison and comprehensive analysis of the results obtained by these geophysical prospecting methods and the combination of geological data,the ideal geophysical prospecting results and sound exploration results are reached.

Key words： thin overburden area fault detection shallow seismic exploration P-wave reflection S-wave reflection seismic refraction tomographic methods

Received: 31 January 2019 Published: 25 October 2019

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Cite this article:

Dong-Wei MA. The application of seismic exploration method to ctive faults detection in urban thin overburden area[J]. Geophysical and Geochemical Exploration, 2019, 43(5): 1038-1045.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2019.0066 OR https://www.wutanyuhuatan.com/EN/Y2019/V43/I5/1038

Map showing faults and seismic profiles in Xinyi city

List of construction parameters of reflection method

Single shot comparison chart of P(a) and S(b) wave across the fault of L₁ line

Diagram of seismic refraction tomographic method observation system

A typical refraction seismic record section

P-wave time section of L₁ line

S-wave time section of L₁ line

P-wave time section of L₂ line

Refraction tomography profile of L₂ line

[1]	邓起东 . 城市活动断裂探测和地震危险性评价问题[J]. 地震地质, 2002,24(4):601-605.
[1]	Deng Q D . Exploration and seismic hazard assessment of active faults in urban areas[J]. Seismology and Geology, 2002,24(4):601-605.
[2]	邓起东, 徐锡伟, 张先康 , 等. 城市活动断裂探测的方法和技术[J]. 地学前缘, 2003,10(1):94-104.
[2]	Deng Q D, Xu X W, Zhang X K , et al. Method and techniques for surveying and prospecting active faults in urban areas[J]. Earth Science frontiers, 2003,10(1):94-104.
[3]	李万伦, 田黔宁, 刘素芳 , 等. 城市浅层地震勘探技术进展[J]. 物探与化探, 2018,42(4):653-661.
[3]	Li W L, Tian Q N, Liu S F , et al. Progress in the study of shallow seismic exploration technology in urban areas[J]. Geophysical and Geochemical Exploration, 2018,42(4):53-661.
[4]	吴子泉, 刘元生, 刘保金 , 等. 地球物理方法在城市地震活动断层精确定位中的应用[J]. 地球物理学进展, 2005,20(2):528-533.
[4]	Wu Z Q, Liu Y S, Liu B J , et al. Application of geophysical method to the precise positioningof urban seismic mobile moving fault[J]. Progress in Geophysics, 2005,20(2):528-533.
[5]	徐建宇 . 地震方法在城市浅覆盖区活断层调查中的应用[J]. 物探与化探, 2016,40(6):1103-1107.
[5]	Xu J Y . The application of seismic method to the investigation of active faults in urban shallow Quaternary sediment area[J]. Geophysical and Geochemical Exploration, 2016,40(6):1103-1107.
[6]	杨歧焱, 尤惠川, 邸龙 . 超浅层地震勘探在青岛王哥庄断裂探测中的应用[J]. 震灾防御技术, 2018,( 2):284-292.
[6]	Yang Q Y, You H C, Di L . The application of ultra shallow seismic survey on wanggezhuang fault in qingdao[J]. Technology for Earthquake Disaster Prevention, 2018,( 2), 284-292.
[7]	顾勤平, 许汉刚, 赵启光 . 厚覆盖层地区隐伏活断层探测的地震方法技术——以桥北镇—宿迁断层为例[J]. 物探与化探, 2015,39(2):408-415.
[7]	Gu Q P, Xu H G , Z Q G.The seismic exploration method for buried active faults in thick sediment area:A case study of Qiaobei-Suqian fault[J]. Geophysical and Geochemical Exploration, 2015,39(2):408-415.
[8]	赵成彬, 刘保金, 姬计法 . 活动断裂探测的高分辨率地震数据采集技术[J]. 震灾防御技术, 2011,6(1):18-25.
[8]	Zhao C B, Liu B J, Ji J F . The acquisition technique of high-resolution seismic data for prospecting of active faults[J]. Technology for Earthquake Disaster Prevention, 2011,6(1):18-25.
[9]	刘保金, 张先康, 方盛明 , 等. 城市活断层探测的高分辨率浅层地震数据采集技术[J]. 地震地质, 2002,24(4):524-532.
[9]	Liu B J, Zhang X K, Fang S M , et al. Acquisition technique of high-resolution shallow seismic data for surveying of urban active faults[J]. Seismology and Geology, 2002,24(4):524-532.
[10]	孙党生, 焦凯英, 唐大荣 , 等. 低信噪比的浅层地震勘探数据处理技术[J]. 物探与化探, 2004,28(2):164-166.
[10]	Sun D S, Jiao K Y, Tang D R , et al. The technique for low snr shallow seismic data processing[J]. Geophysical and Geochemical Exploration, 2004,28(2):164-166.
[11]	王永, 仇恒永, 王治华 . 浅层SH波反射波勘查的应用及震源[J]. 地球物理学进展, 2007,22(2):638-644.
[11]	Wang Y, Qiu H Y, Wang Z H , et al. The surveying application of the shallow layer SH reflected waves & the analysis of the routine seismic source[J]. Progress in Geophysics, 2007,22(2):638-644.
[12]	赵富有, 王世煜, 王典 . 横波地震勘查技术在长春市活断层探测中的应用[J]. 地球物理学进展, 2008,23(1):284-288.
[12]	Zhao F Y, Wang S Y, Wang D . Application of seismic shear wave prospecting in detection of active faults in Changchun city[J]. Progress in Geophysics, 2008,23(1):284-288.
[13]	薛海飞, 董守华, 陶文朋 . 可控震源地震勘探中的参数选择[J]. 物探与化探, 2010,34(2):185-190.
[13]	Xue H F, Dong S H, Tao W P . Parameter selection in vibroseis seismic exploration[J]. Geophysical and Geochemical Exploration, 2010,34(2):185-190.
[14]	俞岱, 孙渊, 路婧 , 等. 浅层初至波旅行时层析并行算法及在地裂缝调查中的应用[J]. 物探与化探, 2017,41(5):977-985.
[14]	Yu D, Sun Y, Lu J , et al. Parallel algorithm for shallow first-break traveltime tomography and its application in ground fissure investigation[J]. Geophysical and Geochemical Exploration, 2017,41(5):977-985.
[15]	刘保金, 张先康, 陈閧 , 等. 三河—平谷8.0级地震区地壳结构和活动断裂研究——利用单次覆盖深反射和浅层地震剖面[J]. 地球物理学报, 2011,54(5):1251-1259.
[15]	Liu B J, Zhang X K, Chen Y , et al. Research on crustal structure and active fault in the Sanhe-Pinggu Earthquake (M8.0) Zone based on single-fold deep seismic reflection and shallow seismic reflection profiling[J]. Chinese J. Geophys., 2011,54(5):1251-1259.
[16]	顾勤平, 康清清, 许汉刚 , 等. 薄覆盖层地区隐伏断层及其上断点探测的地震方法技术——以废黄河断层为例[J]. 地球物理学报, 2013,56(5):1609-1618.
[16]	Gu Q P, Kang Q Q, Xu H G , et al. Seismic exploration methods for buried faults and its up-breakpoint in thin sediment areas—An example of the Feihuanghe fault[J]. Chinese Journal of Geophysics, 2013,56(5):1609-1618.
[17]	刘江平, 王莹莹, 刘震 , 等. 近地表反射和折射法的进展及应用[J]. 地球物理学报, 2015,58(9):3286-3305.
[17]	Liu J P, Wang Y Y, Liu Z , et al. Progress and application of near-surface reflection and refraction method[J]. Chinese Journal of Geophysics, 2015,58(9):3286-3305.
[18]	李颜贵, 蒋正中, 刘子龙 , 等. 地震纵波横波联合勘探方法寻找近地表第四系内隐伏断裂方法研究[J]. 物探化探计算技术, 2014,36(6):692-699.
[18]	Li Y G, Jiang Z Z, Liu Z L , et al. Joint P-wave and S-wave seismic reflection to investigate the quatermary blind fault near surface[J]. Computing Techniques for Geophysical and Geochemical Exploration, 2014,36(6):692-699.
[19]	王小江, 张保卫, 柴铭涛 , 等. 纵横波联合勘探在浅层地震中的应用[J]. 物探与化探, 2010,34(6):824-827.
[19]	Wang X J, Zhang B W, Chai M T , et al. The application of combined P-wave and S-wave exploration to shallow seismic exploration[J]. Geophysical and Geochemical Exploration, 2010,34(6):824-827.
[20]	酆少英, 龙长兴, 高锐 , 等. 高分辨折射和浅层反射地震方法在活断层探测中的联合应用[J]. 地震学报, 2010,32(6):718-724.
[20]	Feng S Y, L C X, Gao R S ,et al.Joint application of high-resolution refraction and shallow reflection seismic exploration approach to active fault survey[J]. Acta Seismologica Sinica, 2010,32(6):718-724
[21]	刘冠军 . 改善可控震源地震记录质量的方法[J]. 物探与化探, 2011,35(4):521-523.
[21]	Liu G J . The improvement of the quality of seismic signal in vibroseis[J]. Geophysical and Geochemical Exploration, 2011,35(4):521-523.
[22]	杨全斌, 刘凤智, 吴永国 , 等. 可控震源零相位转换问题探讨[J]. 物探与化探, 2018,42(3):555-559.
[22]	Yang Q B, Liu F Z, Wu Y G , et al. A tentative discussion on zero phase transformation of vibroseis data[J]. Geophysical and Geochemical Exploration, 2018,42(3):555-559.