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Method for reducing compressed air losses when driving underground cavities supported by compressed air
Method for reducing compressed air losses when driving underground cavities supported by compressed air
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机译:减少在驱动压缩空气支撑的地下空腔时压缩空气损失的方法
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摘要
A method for reducing compressed air losses when driving underground cavities which are supported by compressed air. The part of the inner cavity face exposed by mining is sealed by a viscous medium after breaking away the earth. With a supply of propellant, the viscous medium is applied, in the form of a spray mist which is directed toward the exposed part of the inner cavity face, in such a way that the mist penetrates the substratum without substantially destroying the exposed face. Particles of rock are thus prevented from being detached from the face which is to be sealed.
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