Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (6): 888-895.DOI: 10.12068/j.issn.1005-3026.2020.06.022

• Resources & Civil Engineering • Previous Articles     Next Articles

Simulation Method on Hydraulics and Water Quality of Mine Water Supply Network for Dust Control and Its Application

PENG Ya, JIANG Zhong-an   

  1. School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China.
  • Received:2019-09-18 Revised:2019-09-18 Online:2020-06-15 Published:2020-06-12
  • Contact: JIANG Zhong-an
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Abstract: Hydraulic and water quality simulation is an important method to study the performance of water supply network. In order to call the EPANET calculation engine of hydraulics and water quality analysis in MATLAB environment, so as to study the characteristics of mine water supply network for dust control, two types of effective EPANET-MATLAB hybrid programming methods were realized and compared. Based on the one adopting the object-oriented data structure, EPANET was called to establish hydraulic and water quality models of mine water supply network for dust control. According to the daily water demand of the network, dynamic simulations of hydraulic operating condition and water age distribution were carried out for a duration of 24h and 48h respectively. Research results show that the hybrid programming using EPANET-MATLAB Toolkit is more flexible and efficient to simulate and analyze the hydraulic behaviors and water quality. Water consumption of the network shows a periodic feature with obvious peaks and troughs. The variation range of the water pressure at demand nodes is between 1.5~5.5MPa, and the variation rule is negatively correlated to water consumption. The change of water age also shows a diurnal periodicity. Generally, the longer the distance between the demand node and the water source is, the bigger the water age is. The water age of all demand nodes is lower than 15h.

Key words: mine dust control, mine water supply network, hydraulic simulation, water quality simulation, EPANET

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