(17 Oct 2024 ) Sediment Transport: Principles & Applications

Date: 17 October 2024 

INTRODUCTION

Sediment Transport is of fundamental importance to environmental, hydraulic & coastal engineering and deals with the study of sediment movements in a turbulent water stream, as bed load or suspended loads.

The main objective of sediment transport hydraulics is to predict whether erosion (scouring), deposition (silting) or an equilibrium condition will occur.

The rate of sediment transport can only be predicted with a low degree of accuracy so that the sensitivity of the design to possible variations of sediment transport must be considered.

This Course introduces the basic flow and sediment characteristics, initiation of motion, transport mechanisms, bed forms and roughness before estimating the sediment material transport in terms of bed load and suspended load.  As regards applications, Self-cleansing velocity design of the sanitary sewer and the bank and bed protection of the stormwater drainage channel (mainly for currents and to a lesser extent waves) will be addressed.

The Trainer

Ir Professor CHAN Pak Keung

MHKIE (Civil & Structural Disciplines);

BSc (Eng) & MSc (Eng), HKU;

Postgraduate Diploma (Hydraulic Engineering), IHE Delft Institute for Water Education, Netherlands

Ir Professor CHAN Pak Keung is an Adjunct Professor of The University of Hong Kong (HKU) and an Honorary Fellow of The Hong Kong Chapter of The International Association of Hydro-environment Engineering and Research (IAHR-HK). He was former Professor of Practice (Infrastructure), Hong Kong Polytechnic University until mid 2018 and a former Assistant Director of Drainage Services Department (DSD) until end 2014.

Ir Professor CHAN has got BSc(Eng) and MSc(Eng) Degrees from HKU in 1977 and 1985 respectively and a Postgraduate Diploma in Hydraulic Engineering from IHE Delft (Institute for Water Education), The Netherlands in 1988. Since 2015, If Professor CHAN has been active in water education in university programmes and continuous professional development courses for practising engineers.

                                                                                    

COURSE OUTLINE

LECTURE 1 – Principles (1): Introduction

* Water Density, Viscocity, Uniform Flow in Open Channel, Turbulence

* Sediment Size, Density, Fall Velocity, Bulk Density and Porosity

* Initiation of Particle Motion

* Stability of Stones

LECTURE 2 – Principles (2): Sediment Transport

* Transport Mechanism, Bed Forms, Alluvial Roughness

* Bed Load

* Suspended Load

* Total Bed-Material Load

LECTURE 3 – Application (1): Self-Cleansing Velocity Design Design of the Sanitary Sewer

* Gravity Sewers, Pumping Mains

* Wastewater Treatment Plant Conduits

* Sewage Tunnels of Harbour Area Treatment Scheme

* CIRIA (1996), WEF/ASCE (2007)

LECTURE 4 – Application (2): Bed and Bank Protection of Drainage Channels

* Stone Stability against Currents

* Guidelines in Stormwater Drainage Manual

* Alternative Guidelines in HR Wallingford (1992), Pilarcyk (1990), Maynord (1993)

* Stone Stability against Waves

For more information, please click Sediment Transport Principles & Applications 17 Oct 2024.

 

 

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