在大型水电建设中,石方开挖的数量很大。一个工程的石方量数以几百万米~3计,施工期一般约占整个电站建设总工期的50%,投资约占土建工程总投资的30%。因此,如何加快石方开挖并降低其能源消耗和成本,对缩短建设周期、提高投资效益,具有重要意义。而要做到这一点,需要采取的一项有效措施就是改进供风管理和钻进机具。为此,本文拟结合龙羊峡水电工程的实践,就这一问题提出一些意见和建议,希望引起有关部门的重视。 In the construction of large-scale hydropower, rock excavation a large number. The amount of stone in a project is in the order of millions of meters to 3, and the construction period generally accounts for about 50% of the total construction period of the power station, with the investment accounting for about 30% of the total investment in civil works. Therefore, how to speed up the stone excavation and reduce its energy consumption and cost is of great significance to shorten the construction period and increase investment returns. To do this, one effective measure to be taken is to improve the wind supply management and drilling equipment. Therefore, this paper intends to combine Longyangxia hydropower project practice, put forward some opinions and suggestions on this issue, hoping to arouse the attention of relevant departments.