在给定初始支撑强度的前提下，加大支架的让压变形量，提高支架承载能力，大大改善了矿工钢梯形支架控制围岩的效果。
After being set state load, optimized timbering adds support yielding deformation, increases the load-carrying ability and improves the effect of controlling the surrounding rock.
根据采矿工程中锚杆锈蚀问题，提出了地下环境场下钢锚杆开始锈蚀时间的确定方法。
A method is proposed for determining the initial time of corrosion of steel bolts in underground environment based on investigation of corrosion of steel bolts in many mining projects.
根据采矿工程中锚杆锈蚀问题，提出了地下环境场下钢锚杆开始锈蚀时间的确定方法。
A method is proposed for determining the initial time of corrosion of steel bolts in underground environment based on investigation of corrosion of steel bolts in many mining projects.
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