【摘要】 根据开滦钱家营矿业分公司 - 850 m水平暗立井井帽、天井和 - 60 0 m水平马头门等工程的特点。经方案对比优化 ,采用合理、先进的施工方案和施工方法 ,安全、优质、快速地完成了这些工程更多还原

【Abstract】 In view of the features of engineering such as shaft cap, raise shaft of -850 m horizontal blind shaft and -600 m horizontal horsehead of Qianjiaying Mining Branch Co. and through comparison and optimization of various plans, rational and advanced construction plan and method have been used to complete these engineering safely, with high quality and rapidly.更多还原