微动HVSR法在岩溶区探测地下河管道和溶洞的有效性研究

梁东辉; 甘伏平; 张伟; 韩凯

doi:10.11932/karst20200104

微动HVSR法在岩溶区探测地下河管道和溶洞的有效性研究

doi: 10.11932/karst20200104

中国地质科学院岩溶地质研究所/自然资源部、广西岩溶动力学重点实验室，广西桂林 541004

基金项目: 中国地质科学院基本科研业务费（YYWF201640）；中国地质科学院基本科研业务费（YYWF201643）；中国地质调查局地质调查项目（DD20190825）；中国地质科学院岩溶地质研究所基本科研业务费（2017005）

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出版历程
- 发布日期: 2020-02-25

Study on the effectiveness of the microtremor HVSR method in detecting underground river pipelines and caves in karst areas

Institute of Karst Geology, CAGS/Key Laboratory of Karst Dynamics, MNR&GZAR, Guilin, Guangxi 541004,China

摘要

摘要: 微动HVSR（Horizontal-to-Vertical Spectral Ratio）法是一种简单有效的被动源地震勘探方法，当测点下方介质存在明显的速度变化时，HVSR曲线会呈现相应的异常形态。为探索该方法在岩溶区探测地下河管道和溶洞的有效性，选择桂林毛村地下河流域内的大岩前村作为研究区，并在此开展野外试验。研究区发育有一条地下河管道，通过精准的洞穴测量，获得了此地下河管道的平面位置和洞高等信息。在研究区的地下河管道上方地面布设3条物探测线，均进行微动HVSR法测量，并用探地雷达法测量作对比。结果表明，两种物探方法的异常位置与测线下方地下河管道的实际平面位置基本一致，证明微动HVSR法可作为一种有效的地下河管道和溶洞探测方法。
- 微动HVSR法 /
- 岩溶区 /
- 地下河管道和溶洞
Abstract: The Microtremor HVSR (Horizontal-to-Vertical Spectral Ratio) method is a simple and effective tool in passive-source seismic exploration. When a significant change of velocity of the medium below the measuring site is present, the HVSR curve can exhibit corresponding abnormal shapes. The purpose of this work is explore the effectiveness of this method in detecting underground river pipelines and caves in karst areas. At the Dayanqian village in the Maocun underground river basin,field experiments were carried out,where exists an underground river pipeline exists.The plane position and cave height of this pipeline were determined by precise cave measurement.Three geophysical survey lines were arranged on the ground over the underground river pipeline in the study area, all of which were measured by the microtremor HVSR method and compared by the ground-penetrating radar measurement. The result shows that the anomaly position by the two geophysical methods are basically consistent with the actual plane position of underground river pipeline below the survey lines, which proves that the microtremor HVSR method can be used as an effective tool in the detection of underground river pipelines and karst caves.
- microtremor HVSR method /
- karst area /
- underground river pipeline and karst cave

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参考文献(23)

[1]	Okada H, Suto K, Asten M W. The microtremor survey method［M］. 2004.
[2]	何正勤, 丁志峰, 贾辉,等. 用微动中的面波信息探测地壳浅部的速度结构［J］. 地球物理学报, 2007, 50(2):492-498.
[3]	叶太兰. 微动台阵探测技术及其应用研究［J］. 中国地震, 2004, 20(1):47-52.
[4]	Büyüksara? A, ?zcan Bekta? , Y?lmaz H, et al. Preliminary seismic microzonation of Sivas city (Turkey) using microtremor and refraction microtremor (ReMi) measurements［J］. Journal of Seismology, 2013, 17(2):425-435.
[5]	Ansary M A, Rahman M S. Site amplification investigation in Dhaka, Bangladesh, using H/V ratio of microtremor［J］. Environmental Earth Sciences, 2013, 70(2):559-574.
[6]	Farahani J V, Zaré M. Site characterizations for the Tehran network (TDMMO) in Tehran Region Using Micro-Earthquake, Microtremor and Quarry Blast Data［J］. Soil Dynamics & Earthquake Engineering, 2014, 63(3):235-247.
[7]	Steiner B, Saenger E H, Schmalholz S M. Time reverse modeling of low-frequency microtremors: Application to hydrocarbon reservoir localization［J］. Geophysical Research Letters, 2008, 35(3): L03307.
[8]	Saenger E H, Schmalholz S M, Lambert M, et al. A passive seismic survey over a gas field: Analysis of low-frequency anomalies［J］. Geophysics, 2009, 74(2): 29-40.
[9]	王伟君, 陈棋福, 齐诚,等. 利用噪声HVSR方法探测近地表结构的可能性和局限性:以保定地区为例［J］. 地球物理学报, 2011, 54(7):1783-1797.
[10]	徐佩芬,李世豪,杜建国,等. 微动探测:地层分层和隐伏断裂构造探测的新方法［J］. 岩石学报, 2013, 29(5):1841-1845.
[11]	刘庆华, 鲁来玉, 何正勤,等. 地脉动空间自相关方法反演浅层S波速度结构［J］. 地震学报, 2016(1):86-95.
[12]	Seht I V, Wohlenberg J. Microtremor Measurements Used to Map Thickness of Soft Sediments［J］. Bulletin of the Seismological Society of America, 1999, 89(1):250-259.
[13]	Delgado J, Casado C L, Estévez A, et al. Mapping soft soils in the Segura river valley (SE Spain): a case study of microtremors as an exploration tool［J］. Journal of Applied Geophysics, 2000, 45(1):19-32.
[14]	Gosar A, Lenart A. Mapping the thickness of sediments in the Ljubljana Moor basin (Slovenia) using microtremors［J］. Bulletin of Earthquake Engineering, 2010, 8(3):501-518.
[15]	张伟, 甘伏平, 梁东辉,等. 利用微动法快速探测岩溶塌陷区覆盖层厚度究［J］. 人民长江, 2016, 47(24):51-54.
[16]	Liang D, Gan F, Zhang W, et al. The application of HVSR method in detecting sediment thickness in karst collapse area of Pearl River Delta, China［J］. Environmental Earth Sciences, 2018, 77(6):259.
[17]	Aki K. Space and Time Spectra of Stationary Stochastic Waves, with Special Reference to Microtremors［J］. Bull.earthquake Res.inst.tokyo Univ, 1957, 35:415-456.
[18]	Capon J. Applications of detection and estimation theory to large array seismology［J］. Proceedings of the IEEE, 1970, 58(5):760-770.
[19]	王振东. 微动的空间自相关法及其实用技术［J］. 物探与化探, 1986, 10(2):123-133.
[20]	Nakamura Y. A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface［J］. Railway Technical Research Institute Quarterly Reports, 1989, 30(1)：25-33.
[21]	SESAME. Guidelines for the implementation of the H/V spectral ratio technique on ambient vibrations measurements, processing and interpretation［R］.SESAME European research project,2004.
[22]	Castellaro S,Mulargia F. The Effect of Velocity Inversions on H/V［J］.Pure & Applied Geophysics, 2009, 166(4):567-592.
[23]	黄芬, 唐伟, 汪进良,等. 外源水对岩溶碳汇的影响:以桂林毛村地下河为例［J］. 中国岩溶, 2011, 30(4):417-421.