Abstract
Based on radon gas properties and its existing projects applications, we firstly attempted to apply geophysical and chemical properties of radon gas in the field of mining engineering, and imported radioactive measurement method to detect the development process of the overlying strata mining-induced fractures and their contained water quality in underground coal mining, which not only innovates a more simple-fast-reliable detection method, but also further expands the applications of radon gas detection technology in mining field. A 3D simulation design of comprehensive testing system for detecting strata mining-induced fractures on surface with radon gas (CTSR) was carried out by using a large-scale 3D solid model design software Pro/Engineer (Pro/E), which overcame three main disadvantages of “static design thought, 2D planar design and heavy workload for remodification design” on exiting design for mining engineering test systems. Meanwhile, based on the simulation design results of Pro/E software, the stability of the jack-screw pressure bar for the key component in CTSR was checked with a material mechanics theory, which provided a reliable basis for materials selection during the latter machining process.
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