Ground-Penetrating Radar for Karst Detection in Underground Stone Mines
Ground-Penetrating Radar for Karst Detection in Underground Stone Mines
复制标题
DOI：
10.1007/s42461-019-00144-1
复制
发表时间：
2019-12
期刊：
影响因子：
--
通讯作者：
Jonathan Baggett;A. Abbasi;J. Monsalve;R. Bishop;N. Ripepi;J. Hole
中科院分区：
文献类型：
--
作者：
Jonathan Baggett;A. Abbasi;J. Monsalve;R. Bishop;N. Ripepi;J. Hole
这项工作的重点是大型露天地下矿山中与岩溶空洞相关的操作和安全问题。问题包括这些环境中的突水、结构不稳定和工程不确定性。再加上褶皱沉积岩中普遍存在的裂缝，岩溶空隙非常复杂，并且具有挑战性的地面控制风险。正如 Li 等人报道的那样，预测岩溶空洞位置的传统方法（例如钻探）受到空间分布不一致和特征尺寸可变的阻碍。 (J Rock Mechan Geotech Eng:232–242, 2010) 和 Hassan 等人。 （Procedia Chem 19：737–742，2016）。探地雷达 (GPR) 是一种地球物理技术，可将无线电波发射到介质中，然后通过接收器检测反射波。然后处理和解释接收信号的传播时间和能量。石灰岩和开放的喀斯特洞穴之间的电导率和介电常数差异导致强烈的反射。探地雷达在多个行业中经常用作地球物理测量技术；然而，据赵等人报道，目前还缺乏关于地下采矿探地雷达应用的公开研究。 (2015a; Geophys J Int:62–71, 2015b) 以及 Eskelinen 和 Pellinen (Constr Build Mater:888–898, 2018)。这项工作的目的是演示探地雷达在地下石矿中的使用，并讨论采矿前岩溶空洞检测的重要性。
This work focuses on the operational and safety issues associated with karst voids in large opening underground mines. Issues include water inrush, structural instability, and engineering uncertainty in these environments. Coupled with the fracturing prevalent in folded sedimentary rocks, karst voids are complex and challenging ground-control risks. Traditional methods of predicting karst void locations, such as probe drilling, are impeded by the inconsistent spatial distribution and variable sizes of the features as reported by Li et al. (J Rock Mechan Geotech Eng:232–242, 2010) and Hassan et al. (Procedia Chem 19:737–742, 2016). Ground-penetrating radar (GPR) is a geophysical technique that transmits radio waves into a medium and subsequently detects reflected waves via a receiver. The travel time and energy of received signals are then processed and interpreted. The difference in conductivity and dielectric permittivity between limestone and open karst cavities causes strong reflections. GPR is frequently used as a geophysical surveying technique in several industries; however, there is a lack of published research on underground mining GPR applications as reported by Zhao et al. (2015a; Geophys J Int:62–71, 2015b) and Eskelinen and Pellinen (Constr Build Mater:888–898, 2018). The purpose of this work is to demonstrate the use of GPR in an underground stone mine and to discuss the importance of karst void detection ahead of mining.