石显新,刘强,胡继武,王盼,连晨光,贾茜,张淼淼,聂爱兰
SHI Xianxin,LIU Qiang,HU Jiwu,WANG Pan,LIAN Chenguang,JIA Qian,ZHANG Miaomiao,NIE Ailan

• 1:中煤科工集团西安研究院有限公司

摘要(Abstract)：

三维地震物理模拟技术作为一种重要的地震波传播特征的研究手段,与数值模拟相比具有结果更逼真、不受计算方法和边界条件限制等优点,是认识复杂构造地震波传播规律及其响应特征的有效方法之一,并在地震波传播基本规律研究、野外地震勘探方法验证、观测系统设计优化等方面具有重要的应用价值。为此研发一套大型双三轴气浮定位多通道三维地震物理模拟实验系统。该系统包括导轨和传动系统、运动控制系统、定位测量系统、物理模拟数据采集系统及安全系统等5部分,可实现大尺度物理模型高精度定位,多通道、高效率、高信噪比、高分辨率模型超声波信号采集等功能。利用该系统对模拟含断层、陷落柱、煤层变薄带多种构造的含煤地层三维地震物理模型进行数据采集试验,获得的整体成像效果与地震物理模型吻合,验证了该系统的可靠性和准确性。该系统的研制成功为煤炭地震勘探方法理论研究及实际生产应用提供了新的实验技术手段。
As an important technology to study seismic wave propagation characteristics, 3D seismic physical simulation is an effective method to understand the propagation law and response characteristics of seismic waves in complex structures. It has the advantages of more realistic results and no limitation on calculation methods and boundary conditions over numerical simulation. Therefore, it has important applications in the research of the basic law of seismic wave propagation, verification of field seismic exploration methods, design optimization of observation systems, etc. This paper presents a 3D seismic physical modeling system of large double triaxial air-supported positioning and multichannel data acquisition, which consists of the guide rail and transmission system, motion control system, positioning measurement system, physical simulation data acquisition system and safety system. It is available for large-scale and high-precision physical model positioning, as well as multichannel,high efficiency, high SNR, high resolution model ultrasonic signal acquisition. The system has been adopted to collect data from the actual 3D seismic physical model of coal-bearing strata with faults, collapse columns and coal seam thinning belt, and the overall imaging effect is consistent with the seismic physical model, showing the reliability and accuracy of the system. The successful development of the system provides a new experimental technique for the theoretical research and practical application of coal seismic exploration.

关键词(KeyWords)： 三维地震物理模拟;多通道采集;超声波信号;双三轴坐标定位系统;气浮定位
3D seismic physical modeling;multichannel data acquisition;ultrasound signal;double triaxial coordinate positioning system;air-supported positioning

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41374150,41974209);; 中煤科工集团西安研究院有限公司科技创新基金项目(2019XAYPT02)

作者(Author): 石显新,刘强,胡继武,王盼,连晨光,贾茜,张淼淼,聂爱兰
SHI Xianxin,LIU Qiang,HU Jiwu,WANG Pan,LIAN Chenguang,JIA Qian,ZHANG Miaomiao,NIE Ailan

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