Traditional Culture Encyclopedia - Traditional festivals - Is seam bolt eliminated in coal mine?
Is seam bolt eliminated in coal mine?
Coal seam bolt has not been eliminated. According to the relevant public information, this support method was widely used in previous coal mine projects. However, with the progress of science and technology and the emergence of new support materials, the use of pipe joint bolts has gradually decreased, and it is still used in some old coal mine projects and has not been eliminated. Coal seam bolt is a traditional support method in coal mine, which is composed of steel pipe, anchor head and secondary grouting material in coal seam.
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