Estimation of errors in the hydraulic calculation of sewerage networks with internal deposits
https://doi.org/10.52170/1815-9265_2023_65_74
Abstract
The aim of the work is to evaluate the actual errors in the hydraulic calculation of the characteristics of drainage pipes with internal deposits and compare them with the characteristics of new pipes. As a research method, a quantitative method for evaluating (comparing) the results of calculating the values of the hydraulic characteristics of new pipes and pipes with different thicknesses of the sediment layer in their flume part was used. A specific example was used to compare the results of new pipes hydraulic calculation and pipes with different deposit thicknesses. Graphs of the pipes design characteristics dependence on the actual thickness of the internal deposits layer are given. Taking into account the relative error in calculating the values of the hydraulic characteristics of pipes, graphs of the actual values hydraulic characteristics networks pipes dependence for the conditions of the given problem are given. It is proposed to quantify the values of the hydraulic characteristics of drainage pipes, taking into account the actual thickness of the sediment layer in their flume. A device for measuring the actual thickness of the sediment layer is recommended. It is proposed to develop a special reference manual for hydraulic calculation of pipes with a specific thickness of the deposits layer in their flume, as well as a method for substantiating the need for hydrodynamic cleaning of gravity sewage networks with deposits in their flume.
About the Authors
O. A. ProdousRussian Federation
Oleg A. Prodous – Independent Expert in the Field of Water Supply and Sewage, Doctor of Engineering, Professor
Saint Petersburg
D. I. Shlychkov
National Research Moscow State University of Civil Engineering
Russian Federation
Russian Federation
Dmitry I. Shlychkov – Associate Professor of the Water Supply and Sewage Department, Candidate of Engineering
Moscow
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Review
For citations:
Prodous O.A., Shlychkov D.I. Estimation of errors in the hydraulic calculation of sewerage networks with internal deposits. Bulletin of Siberian State University of Transport. 2023;(2):74-81. (In Russ.) https://doi.org/10.52170/1815-9265_2023_65_74
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