This paper presents the optimization of concrete materials for cement backfill mining in a uranium mine. It describes how to determine the backfill concrete optimizing proportion by orthogonal test.
本文系对某铀矿下向胶结充填采矿集料配比优化，论述了利用正交试验寻求充填混凝土最优配比方法。
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。
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。
Since nothing ruins the illusion of solid rock quite like a hollow knock, contractors often backfill cavities with concrete.
因为没有废墟空心完全一样敲在固体岩石错觉，承办商经常用混凝土回填腔。
Under the complex geological condition where the backfill is on thick soft clay, the design method of combining fly ash concrete pile and lime pile is presented.
针对深厚软粘土上覆新回填土的复杂地质条件，提出了粉煤灰混凝土桩与石灰桩联合进行地基处理的设计方法。
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。
Secondly, models with different backfill-material such as argil fly-ash concrete, soil, sand, grit and lime-stabilized soil were experimented.
其次，进行了陶粒粉煤灰混凝土、粘性土、风积砂、砂砾和石灰土等几种材料的台背回填离心模型试验。
Build high anti-seep vertical well dam backfill cannel and fill concrete, etc...
建筑高抗渗竖井，大坝回填槽，填充混凝土等。
Build high anti-seep vertical well dam backfill cannel and fill concrete, etc...
建筑高抗渗竖井，大坝回填槽，填充混凝土等。
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