T/GRM 007-2020 Excavation workface seismic channel wave exploration standard
T/GRM 007-2020 Excavation workface seismic channel wave exploration standard
Basic Information
Scope
Scope: This standard specifies the basic requirements for the design of observation systems for seismic trough wave exploration in coal mining workfaces, underground trough wave data collection, indoor data processing and interpretation, and the submission and tracking verification of results. This standard applies to underground seismic trough wave exploration work in coal mines. Main technical content: To standardize the design of observation systems for seismic trough wave detection, underground data collection, indoor data processing and interpretation, the submission of results, and tracking verification, this standard is formulated. When geological anomalies such as abnormal changes in coal thickness, faults, subsidence columns, igneous intrusive bodies, fracture zones in coal-rock bodies, coal seam bifurcation or merger, and severe changes in gangue occur in coal mining workfaces, seismic trough wave detection should be carried out. Main contents: 1. Design of seismic trough wave exploration 2. Seismic trough wave data collection 3. Seismic trough wave data processing 4. Interpretation of seismic trough wave data 5. Tracking verification