GB/T 37807-2019 in English

GB/T 37807-2019 Standard Overview

This standard specifies the terms and definitions, general requirements, exploration work content and methods, investigation and mapping, geophysical exploration, drilling and sampling, and compilation of exploration results for the exploration of goaf areas in open-pit coal mines. It is applicable to the exploration of goaf areas in underground mining that affect open-pit coal mining.

Comparison of Standard Frameworks

Implementation suggestions

• In the preliminary exploration stage, it is recommended to use a variety of geophysical exploration methods (such as electrical exploration and seismic exploration) combined with drilling verification to ensure the accuracy and comprehensiveness of the data.
• For goafs under complex geological conditions, it is recommended to use three-dimensional laser scanning and sonar detection technology for refined detection.
• The detailed investigation phase should focus on analyzing the stability and maximum safe thickness of the overlying rock mass, and conduct an assessment using methods such as the Persian arch theory, and formulate corresponding disaster prevention and control measures based on the assessment results.