The Effect of lnlet Clogging in Drainage System


  • Pongpan Kanjanakaroon สาขาวิศวกรรมโยธา คณะวิศวกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลล้านนา เชียงราย
  • Surachai Amnuaypornlert Department of Civil Engineering Faculty of Engineering, Rajamangala University of Technology Lanna Chiang Rai Campus
  • Krit Maneekit Department of Civil Engineering Faculty of Engineering, Rajamangala University of Technology Lanna Chiang Rai Campus
  • Nattaworn Yodpanan Department of Civil Engineering Faculty of Engineering, Rajamangala University of Technology Lanna Chiang Rai Campus
  • Weerawat Janchuthip Department of Civil Engineering Faculty of Engineering, Rajamangala University of Technology Lanna Chiang Rai Campus


clogging factors, inlet, drainage system, pipe flow


The purpose of this paper is to study the effect on drainage systems when inlets become clogged and to present a suitable inlet type for drainage systems. The Storm and Sanitary Analysis 2018 program was chosen to analyze the drainage system and the water level that occurs in the drainage of Kaeng Sua Ten Housing Estate plan 3. The inlets were rated by the degree of clogging using percentages from 0–90% against the 4 different types of inlets found in the estate. The results showed that at 50% clogging, the combination inlets and the curb opening only inlet had the lowest and highest level of flooding that not over 2 and 6 centimeters respectively. The rectangular grate inlet is suitable when considering the installation budget. The circular grate inlet is most suitable when considering driving safety. The curb opening inlet is a good choice for use in areas with low clogging risk and low volume of water intake because it is the cheapest.


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How to Cite

P. . Kanjanakaroon, S. . Amnuaypornlert, K. . Maneekit, N. . Yodpanan, and W. . Janchuthip, “The Effect of lnlet Clogging in Drainage System”, Ladkrabang Engr J, vol. 39, no. 2, pp. 125–135, Jun. 2022.



Research Articles