Modelling sewer discharge via displacement of manhole covers during flood events using 1D/2D SIPSON/P-DWave dual drainage simulations
Modelling sewer discharge via displacement of manhole covers during flood events using 1D/2D SIPSON/P-DWave dual drainage simulations
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DOI：
10.1080/1573062x.2015.1041991
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发表时间：
2016-11
影响因子：
2.7
通讯作者：
Albert S. Chen;J. Leandro;S. Djordjević
中科院分区：
文献类型：
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作者：
Albert S. Chen;J. Leandro;S. Djordjević
在城市地区，超载的下水道可能会导致额外的负荷，从而导致地面泛滥。下水道系统的溢流主要从进水口开始，直到沙井内的压头高到足以掀起井盖，在这个阶段，超负荷的水流可以通过沙井井盖底部和地面之间的缝隙排出。在本文中，我们提出了一种新的方法来模拟这种动态之间的污水和地表水流耦合地面和污水流动模拟。通过两个案例说明了新的链接模型与简化过程的传统模型之间的区别。结果表明，该方法能较好地描述井盖限制地面排水到排水管网时的物理现象，减少超载流量。
In urban areas, overloaded sewers may result in surcharge that causes surface flooding. The overflow from sewer systems mainly starts at the inlets until the pressure head in the manhole is high enough to lift up its cover, at which stage the surcharged flow may be discharged via the gap between the bottom of the manhole cover and the ground surface. In this paper, we propose a new approach to simulate such a dynamic between the sewer and the surface flow in coupled surface and sewer flow modelling. Two case studies are employed to demonstrate the differences between the new linking model and the traditional model that simplifies the process. The results show that the new approach is capable of describing the physical phenomena when manhole covers restrict the drainage flow from the surface to the sewer network and reduce the surcharge flow and vice versa.