中文摘要：

长大通风斜井存在出水多、截面大、坡陡等特点,是抽排水施工设计重点工作。依据杭州市紫之隧道东线K1＋570~K3＋555通风斜井,对大长坡面抽排水系统进行设计,对不同型号抽水泵排水量以及排水泵供电计算。设计采用多台不同型号排水泵及时抽水,采取固定泵站与移动泵站相结合设计方案,使排水效率提高了1.3倍;采用两台30 k W移动泵站水泵与一台40 k W固定泵站水泵相结合方法,有效解决了施工过程中出现的突然涌水情况;对抽排水系统供电配置计算,进行变压器设置并优化了通电路线,排水专线架设高度设为4m,每5 m设置一挂钩。

英文摘要：

There is more water, grow up ventilation shafts with large cross-section, steep slopes and other difficulties, is the design of the major construction drainage pumping work. With the Daxiangling No. 2 ventilation shafts, designed on the long slope drainage system of different types of pumps and drainage volume and drainage pump power calculation. Design uses multiple different types of drainage pump in pumping, pumping station and mobile station to take a fixed combination of design of the drain- age efficiency is increased by 1.5 times; with the combination of the two 30 kW mobile pumping station with a 40 kW fixed pump, effectively solve the sudden gushing water in the process of construction of pumping drainage system ; power supply configuration calculation of transformer set and optimize the power line, the drainage line height is 4 m, each 5 m is provided with a hook.