引言早在1932年,H.H.别洛夫教授就提出了两种按压力流计算雨水管道的方法,一为压力系数法,一为水头分配法。此后,什维佐夫,扎克等人也提出了各自的计算方法。一般认为H.H.别洛夫的压力系数计算法,理论依据较充分,计算较简单,因而被广泛采用。压力系数法是一种简化的计算方法,系将按重力流计算得出的设计流量乘以小于1的压力系数,然后再以此修正后的流量重新确定管道的水力参数。其计算公 INTRODUCTION As early as 1932, Professor H. H. Beloff proposed two methods to calculate the rainwater pipeline according to the pressure flow. One is the pressure coefficient method and the other is the head distribution method. Since then, Szytzov, Zach et al. also put forward their own calculation methods. It is generally believed that H. H. Belov’s pressure coefficient calculation method is based on a full theoretical basis and the calculation is relatively simple, so it is widely used. The pressure coefficient method is a simplified calculation method, which multiplies the design flow calculated by gravity flow by a pressure coefficient less than 1, and then re-determines the hydraulic parameters of the pipeline with the corrected flow. Its calculations