Page 15 - THEi Student Applied Research Presentations 2024

STUDY OF ADJUSTMENT OF DRAINAGE DESIGN
STANDARD IN HONG KONG DUE TO CLIMATE

CHANGE

ABSTRACT

RESEARCH BACKGROUND

As climate change intensifies, the world faces more frequent and severe weather
events. These changes impact rainfall patterns, leading to an increased risk of flooding
incidents. To mitigate economic losses and protect public safety, it is crucial to develop
enhanced drainage systems capable of handling these challenges.

METHODOLOGY LI CHUN KUEN
Study of precipitation data, both historical and projected, and compare to that of
countries geographically located alike Hong Kong. Find out the impact of climate BEng (Hons) in Civil Engineering
change on precipitation patterns. Department of Construction,
Conduct a case study in Wong Tai Sin District by using the projected rainfall data in Environment and Engineering
different Return Periods, to find out the Spare Capacity of the existing drainage system.
For those drainage systems which fail in Spare Capacity, different new design standards
are proposed to determine whether the existing drainage design can be improved.
OBJECTIVES
FINDINGS

The latest Stormwater Drainage Manual (SDM) has given pragmatic and feasible The study aims to assess the impact of
guidelines for designing drainage systems due to climate change. The recommendation
is to try to add 50 more years of return periods, according to the return periods climate change on precipitation patterns
guidelines of SDM when designing urban drainage systems and using the “Sponge in Hong Kong. It will analyze historical
City” concept. and projected rainfall changes, evaluate
existing drainage systems, compare
ABOUT THE INVESTIGATOR international practices, and propose
necessary adjustments to enhance
I am a civil engineering student. I am interested in hydraulics, hydrology, and civil resilience. Ultimately, the findings
works. For my career goals, I would like to work on the drainage area further. I would will provide recommendations for
like to use my professional knowledge to serve the society and aim to be a better improving drainage design standards
Engineer myself. Also, I need to thank my supervisor Dr LIU Yaohui, and those who and mitigating risks associated with
helped in this study. changing precipitation patterns.

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