Recognition method of typical anomalies in karst tunnel construction
 based on attribute analysis of ground penetrating radar

LIU Zong-hui; LIU Mao-mao; ZHOU Dong; LAN Ri-yan; WU Heng; WANG Ye-tian

doi:10.16285/j.rsm.2018.0796

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Recognition method of typical anomalies in karst tunnel construction based on attribute analysis of ground penetrating radar

更新时间：2026-06-25

- Recognition method of typical anomalies in karst tunnel construction based on attribute analysis of ground penetrating radar
- Vol. 40, Issue 8, Pages: 3282-3290(2019)
- 作者机构：
  
  1. 广西大学土木建筑工程学院,广西,南宁,530004
  2. 广西新发展交通集团有限公司,广西,南宁,530028
  3. 广西大学广西防灾减灾与工程安全重点实验室,广西,南宁,530004
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2018.0796
  CLC： TU42
- Online First：26 August 2019，
  
  Published：2019
- 稿件说明：
移动端阅览
LIU Zong-hui, LIU Mao-mao, ZHOU Dong, et al. Recognition method of typical anomalies in karst tunnel construction based on attribute analysis of ground penetrating radar[J]. 2019, 40(8): 3282-3290.
DOI：

LIU Zong-hui, LIU Mao-mao, ZHOU Dong, et al. Recognition method of typical anomalies in karst tunnel construction based on attribute analysis of ground penetrating radar[J]. 2019, 40(8): 3282-3290. DOI： 10.16285/j.rsm.2018.0796.

摘要

采用探地雷达进行岩溶隧道超前地质预报时，受现场探测环境、岩溶地质的复杂性以及解译技术制约，多解性问题一直未能得到很好解决。从依托工程中选取代表性的案例，分析总结隧道建设中常见的几种典型岩溶不良地质的属性特征，结果表明岩溶不良地质类型与探地雷达属性参数有很好相关性，其中：空腔型溶洞、干燥松散黏土夹碎石充填型溶洞和无水破碎带雷达反射波中心频率随时间衰减较慢，分布范围分别为90～105、85～100、70～110 MHz；软塑状黏土充填型溶洞和富水破碎带雷达反射波中心频率随时间衰减较快，分布范围分别为60～80 MHz和40～70 MHz。研究属性特征定量表示方法，提出基于广义S变换及子波谱模拟的雷达波吸收衰减参数计算方法。实际数据分析结果表明：每种属性都能从某些角度反映岩溶不良地质体雷达反射波的特征，在综合多个特征参数后，可以较好地区分不同的岩溶不良地质类型，从而提高探地雷达目标识别精度。

Abstract

It is difficult to solve the problem of multi-results when using ground penetrating radar (GPR) to forecast geological anomalies of karst tunnel due to numerous factors

such as the field detection environment

the complexity of karst geology and the interpretation technology and so on. Some representative cases from the previous projects were chosen as the studied object

the attribute characteristics of typical geological anomalies in karst tunnel construction were analyzed and summarized. The results of field tests indicated that the attribute characteristics were closely associated with karst geological anomalies. Among them

the center frequencies of GPR reflection waves in cavity karst caves

karst caves filled with dry loose clay and gravel and anhydrous fracture zones attenuated slowly with time

and the distribution ranges were 90-105 MHz

85-100 MHz

and 70-110 MHz respectively. However

the center frequency of radar reflection waves in karst caves filled with soft plastic clay and water-saturated fracture zones decreased rapidly with time

and the distribution ranges were 60-80 MHz and 40-70 MHz respectively. After studying the method of quantitative representation for attribute features

a calculation method of radar wave absorption and attenuation parameter based on generalized S transform and wavelet spectral simulation was proposed. The analysis results of field tests indicated that each of the characteristic properties could reflect the features of the radar reflection wave of karst geological anomalies in some ways. Different geological anomalies in karst tunnel construction could be distinguished after integration of these characteristic parameters

which could enhance the accuracy of GPR interpretation in karst tunnel advanced geology prediction.

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