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Improved procedure for consolidating and Seal Rocks and Earth in geological deposits and artificial Drainage
Improved procedure for consolidating and Seal Rocks and Earth in geological deposits and artificial Drainage
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机译:改进的固结和封闭地质沉积和人工排水中岩石和土石方的程序
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摘要
Waterglass solutions are mixed with polyisocyanates and these emulsions are then left to harden in the formations. Introduction of the mixture into the formations which are required to be consolidated, e.g. deposits of coal, is mainly carried out by forcing the mixture under pressure into bore-holes in the formations. According to one variation of the process, the components of the mixture are introduced into the multi-chamber cartridges which are introduced into the bore-holes and then destroyed as the components are mixed. Certain additives such as accelerators, blowing agents, polyols, stabilizers and/or thixotropic agents are advantageous for the quality of the composite masses formed by hardening of the mixture.
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