低はね返り・低粉じん型高強度吹付けコンクリートの開発

抄録

This report describes the development of high strength shotcrete making use of the merits of high quality shotcrete. The cost saving in tunnel construction is main object of this development. This high strength shotcrete will form ground support which can be applied to the expansive ground and the high speed excavation. Developed high strength shotcrete shows the performance more than the target.