评定深立井井筒连接部稳定性

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井筒考察结果作为井筒支架损坏原因分析和统计整理的原始资料,还能确定应力状态影响的程度。根据乌克兰矿山测量科研所的分级作为评定的等级:按0.5等级的间距,分为从1(满意的)到3(须修理的)。用稳定性平均悬浮标准公式评定连接部位矿山地质条件。
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