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顿涅茨工学院所做的分析表明,在施工中采用繁重的及不便操作的钢筋混凝土支架是顿巴斯矿井井底车场巷道建设中技术经济指标低的主要原因。这种支架保证不了在其整个使用期限内井底车场生产的可靠性,况
The analysis conducted by Donetsk Institute of Technology shows that the heavy and inconvenient operation of reinforced concrete supports during construction is the main reason for the low technical and economic indicators in tunnel construction at the bottom of Donbass Mine. This bracket can not guarantee the reliability of production at the bottom of the well during its entire life