【摘要】 根据汾河二库实际情况 ,对倒垂孔的施工方案进行选择比较更多还原

【Abstract】 The construction of pendulum shaft is a project inserted in that of the main dam project.In this paper,three construction alternatives of the pendulum shaft in Fenhe Reservoir Ⅱ are compared according to the construction schedule of the main dam project,to the construction cost of the pendulum shaft and to the equipment and technology level there are of constructor.更多还原