GPR for Detecting Karst-Fissure Aquifer in Tunnel

doi:10.3969/j.issn.1674-0696.2015.03.07

Journal of Chongqing Jiaotong University(Natural Science) ›› 2015, Vol. 34 ›› Issue (3): 32-35.DOI: 10.3969/j.issn.1674-0696.2015.03.07

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GPR for Detecting Karst-Fissure Aquifer in Tunnel

Zhao Ningyu¹, Pan Jinqiu¹, Yu Haijun², Liang Bo¹

1. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China;2. Chongqing Aerospace Polytechnic, Chongqing 400021, China

Received:2014-08-12 Revised:2014-12-30 Online:2015-06-20 Published:2015-07-07

岩溶裂隙水的地质雷达信号分析与应用

赵宁雨¹,潘金秋¹,喻海军²,梁波¹

1.重庆交通大学土木建筑学院,重庆 400074;2.重庆航天职业技术学院,重庆 400021

作者简介:赵宁雨(1981-),男,四川南充人,讲师,博士研究生,主要从事岩土工程试验方面的研究。E-mail:zny2008@163.com。
基金资助:
国家自然科学基金项目（51178490；重庆市自然科学基金项目（cstc2013jcyjA30019)；重庆市教育科学技术研究项目（KJ1400303)

Abstract

Abstract: The geological development principles of karst-fissure aquifer were analyzed. Then the characteristics of GPR electromagnetic reflection signal on karst-fissure aquifer and water content estimation method based on wave velocity-dielectric constant relationship were studied. Through specific engineering application, the geological radar has good resolution to fracture water buried in low water content rock and in fractured rock environments. And the estimation method of Karst fissure water moisture is feasible. The validity of the signal analysis method based on the geological understanding of the law to delineate adverse geological of karst fissure water and to estimate water content was verified.

Key words: tunnel engineering, karst-fissure aquifer, GPR, geological principle, geological detection, water content

摘要： 从岩溶地质发展规律的角度分析了富水岩溶裂隙水的发展规律；研究了地质雷达电磁信号对岩溶裂隙水的反射特征和基于雷达信号的波速-介电常数关系的含水量估算方法；具体工程实例应用分析表明：地质雷达对隐埋在低含水量值的岩体中的裂隙水及裂隙岩体环境的分辨力良好，岩溶裂隙水含水量的估算方法可行。验证了基于地质规律认识的信号分析方法对岩溶裂隙水不良地质圈定和含水量估算方法的有效性。

关键词: 隧道工程, 岩溶裂隙水, 地质雷达, 地质规律, 地质预报, 含水量

CLC Number:

Zhao Ningyu, Pan Jinqiu, Yu Haijun, Liang Bo. GPR for Detecting Karst-Fissure Aquifer in Tunnel[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(3): 32-35.

赵宁雨,潘金秋,喻海军,梁波. 岩溶裂隙水的地质雷达信号分析与应用[J]. 重庆交通大学学报（自然科学版）, 2015, 34(3): 32-35.

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GPR for Detecting Karst-Fissure Aquifer in Tunnel

岩溶裂隙水的地质雷达信号分析与应用

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