Seismograms and snapshot files for dynamic models (crack and shear sources)

This paper presents a numerical investigation on the influence of the mining environment on seismic sources with a focus of pillar failure mechanisms in tabular mining. We investigate the influence of the stope on seismic inversions for the scalar moment, corner frequency, source radius, stress drop and moment tensor through dynamic numerical modelling using elastodynamic modelling software, WAVE3D. The main objective is to determine whether the source parameters calculated from the recorded waveforms are due to a combination of the stope source and the pillar sources, rather than being related only to crushing of the pillar or shearing in the pillar footwall. The main finding is that the presence of stopes, and types of pillars, have a significant impact on the seismic moment and other source parameters. This is important since moment is viewed as a robust parameter on which seismic magnitude is often based, however this study indicates that moments calculated for pillar failure in a tabular stoping environments are less representative of the shearing or crushing source than originally thought.,This data was generated by an elastodynamic code called WAVE3D and consists of velocity seismograms and snapshots in time in CSV format. Eight models were run: 1. Crush source in solid (control model) 2. Crush source with a stope 3. Crush source with a rigid pillar in a stope 4. Crush source with a soft pillar in a stope 5. Shear source in solid (control model) 6. Shear source with a stope 7. Shear source with a rigid pillar in a stope 8. Shear source with a soft pillar in a stope,

本文针对板状采矿（tabular mining）环境下的地震震源开展数值研究，重点聚焦矿柱破坏机理。本研究采用弹性动力学模拟软件WAVE3D开展动态数值模拟，探究采场（stope）对标量矩（scalar moment）、拐角频率（corner frequency）、震源半径（source radius）、应力降（stress drop）及矩张量（moment tensor）等地震震源反演参数的影响。本研究的核心目标为：明确由记录波形反演得到的震源参数，究竟是采场震源与矿柱震源共同作用的结果，还是仅与矿柱压溃或矿柱下盘剪切破坏相关。主要研究结果显示，采场的存在以及矿柱类型对地震矩及其他震源参数具有显著影响。这一发现具有重要学术价值：地震矩通常被视作构建地震震级的稳健参数，但本研究表明，在板状采场环境中，针对矿柱破坏计算得到的地震矩，相较此前认知，更难准确反映剪切或压溃类震源的真实特性。
本数据集由名为WAVE3D的弹性动力学程序生成，包含CSV格式的速度地震记录（velocity seismograms）与瞬时快照（snapshots in time）数据。本次研究共开展8组模型模拟：1. 完整岩体中的压溃震源（crush source，对照组（control model））；2. 带有采场的压溃震源；3. 采场内设置刚性矿柱（rigid pillar）的压溃震源；4. 采场内设置柔性矿柱（soft pillar）的压溃震源；5. 完整岩体中的剪切震源（shear source，对照组）；6. 带有采场的剪切震源；7. 采场内设置刚性矿柱的剪切震源；8. 采场内设置柔性矿柱的剪切震源。