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本文通过大量实验研究,证明现况合流管道中截流井,由于没有考虑它特有的水流状态及各种损失,而按明渠均匀等速流计算、设计,造成污水截流效率较低,大量污水入河的现象。实验研究说明,影响槽式截流井截流效率的主要因素是槽深、槽长;影响堰式截流井的主要因素是堰高。并提出了有关小管径槽式、堰式截流井主要尺寸的计算经验式。
This article through a large number of experimental studies to prove that the status of intercepted wells in converging pipelines, because it does not take into account its unique water flow conditions and various losses, but according to the calculation and design of uniform equal flow velocity of open channels, resulting in lower sewage interception efficiency, a large number of sewage into the river The phenomenon. Experimental studies show that the main factors affecting the interception efficiency of trough intercepted wells are the depth of the trenches and the length of the trenches; the main factor affecting the braided interception wells is the height. The calculation formulas for the major dimensions of the small-diameter trough and squeezing wells were proposed.