TAILING STABILITY METHOD OF RIVER AT MINE DISTRICT

摘要

A tailing/waster rock stabilization method of river at closed mine region is provided to delay stream of the river through the flux reduction facility, thus preventing the corrosion of cover soil. A tailing/waster rock stabilization method of river at closed mine region comprises a step of forming a tailing/waster rock solidification layer(20) by supplying calcium hydroxide and water to a tailing/waster rock layer(T) between a tailing dam(D) and a concrete dam(10), a step of constructing a gravel layer(30) on the top of the tailing/waster rock layer and the tailing dam, a step of constructing a cover layer(40) lower than the concrete dam, and a step of constructing a flux reduction facility(50).