backfill concrete 回填混凝土
At last, some Suggestions were raised for the concrete backfill mining.
最后对具体的充填开采方法提出了建议。
The dynamic response of tunnels can largely be reduced by the foamed concrete backfill layers, which can be used to construct a sort of ideal energy absorption support structure.
泡沫混凝土耗能层能够明显减小结构的动力响应,可以用来构筑较理想的结构消波吸能型式。
In the paper, the mining technology of cemented fill stoping and backfill technology with rubble and concrete are presented, and their technical and economical indexes are briefly analyzed.
本文介绍该采矿法的回采方法与碎石混凝土充填工艺,并对其技术经济指标作简要分析。
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