许楼煤矿在主井人工冻结巨厚砾岩段施工中，采用了控制爆破技术。
A controlled blasting technology was applied to the construction of freezing thick gravel stratum section in the main shaft of Xulou Mine.
本文总结了在落后的施工工艺和特殊冻结条件下的冻结基岩爆破施工方面的经验。
Text summarized experience of frozen bedrock dynamited construction during condition of distinguishingly freezing and backWard techniques of construction.
对冻结风化基岩、砂砾层或卵石层，冻土挖掘机效率低，宜采用钻眼爆破法，采用抓岩机装载冻土。
For the frozen weathered bedrock, sandy gravel and pebble bed, it is more suitable to use drilling and blasting method than to use the frozen soil excavator.
应用推荐