In this paper, a new mining technique of mine-Deep hole blasting under water pressure is presented.
介绍了一种矿山开采新技术—深孔水压爆破。
Through deep hole blasting, water injection and roof strata of integrated management measures for the effective solution of the gas problem.
通过采取深孔爆破、顶板注水和矿压分析等综合治理措施，有效的解决了瓦斯问题。
The salvaging program for the "haifeng" sunken ship in water areas near the deep water channel of entrance of Yangtze River, blasting parameters and implementation method are introduced.
介绍了长江口深水航道附近水域沉船解体和打捞方案，爆破参数和施工方法。
The salvaging program for the "haifeng" sunken ship in water areas near the deep water channel of entrance of Yangtze River, blasting parameters and implementation method are introduced.
介绍了长江口深水航道附近水域沉船解体和打捞方案，爆破参数和施工方法。
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