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山东大学学报 (工学版) ›› 2021, Vol. 51 ›› Issue (3): 68-75.doi: 10.6040/j.issn.1672-3961.0.2020.158

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TGS360pro超前预报地下水的地震波场正演模拟分析——以岩溶模型为例

张明财1,2,3,巨广宏1,熊章强2,3,张大洲2,3   

  1. 1.中国电建集团西北勘测设计研究院有限公司, 陕西 西安 710043;2.中南大学地球科学与信息物理学院, 湖南 长沙 410083;3.有色金属成矿预测与地质环境监测教育部重点实验室, 湖南 长沙 410083
  • 出版日期:2021-06-20 发布日期:2021-06-24
  • 作者简介:张明财(1986— ),男,甘肃武威人,博士研究生,工程师,主要研究方向为地球探测与信息技术. E-mail:csuzmc@163.com

Forward modeling analysis of seismic wave field for TGS360pro advanced prediction of groundwater: taking the karst model as an example

ZHANG Mingcai1,2,3, JU Guanghong1, XIONG Zhangqiang2,3, ZHANG Dazhou2,3   

  1. 1. Powerchina NorthWest Engineering Corporation Limited, Xi'an 710043, Shaanxi, China;
    2. School of Geosciences and Info-Physics, Central South University, Changsha 410083, Hunan, China;
    3. Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring of Ministry of Education, Changsha 410083, Hunan, China
  • Online:2021-06-20 Published:2021-06-24

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摘要： 为了避免隧道开挖过程中由对掌子面前方地下水赋存状态探测不准而发生涌水事故,通过隧道地质超前预报TGS360系统,利用地震波信号的瞬时幅度和瞬时频率与岩体结构面的关系,准确、高效地对掌子面前方的赋水体进行探测,同时基于TGS360pro隧道超前预报系统原理,采用谱元法对掌子面前方存在充水溶洞的地质模型进行数值正演模拟,在波场分析的基础上,对正演所得地震波场记录数据进行Hilbert变换,得到了应力变化曲线。数值分析结果表明:TGS360pro隧道超前预报系统可以有效地探测掌子面前方富水状况,在隧道开挖建设中具有推广应用前景。

关键词: TGS360pro系统, 地下水, 谱元法, 瞬时频率, 瞬时相位, 应力变化

Abstract: In order to avoid the occurrence of water gushing accident due to the inaccurate detection of the underground water storage state in front of the tunnel during the excavation of the tunnel, the tunnel geology survey TGS360pro System was used to accurately and efficiently detect the water-bearing body in front of the tunnel face by using the relation between the instantaneous amplitude and frequency of seismic wave signal and the rock structure plane, at the same time, based on the principle of TGS360pro tunnel Prediction System, the geological model with water-filled cave in front of the face was simulated by using spectral element method, through the stress curve, the numerical analysis results showed that the TGS360pro Tunnel Prediction System could effectively detect the water-rich condition in front of the tunnel, it had the prospect of popularization and application in tunnel excavation construction.

Key words: TGS360pro System, groundwater, the spectral element method, instantaneous frequency, instantaneous amplitude, stress change

中图分类号: 

  • P315.3
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