Table of Contents I 74

Civil Engineering April 2021 | Vol 29 No 3

FRONT COVER I
FROM THE PRESIDENT’S DESK 1
Identifying opportunities in trying times 1
CONTENTS 2
ON THE COVER 4
Keller supports Amdec Group’s Harbour Arch project 4
CEO’S CORNER 6
New market development opportunities – can Africa trade with itself? 6
FUN QUIZ 9
SAICE Know Your Sector Competition 9
GEOTECHNICAL ENGINEERING 13
Kelvin Legge – an extraordinary man who has known great sorrow and joy 13
Kashimbila Dam: aspects of geology, engineering geology and geotechnics 17
Application of unsaturated soil mechanics – two years on 22
Blasting and excavation of a new highwall for Exxaro 28
Digging Deeper – a review of South African practice on deep excavation design in urban areas – 35
MARKET CONTRIBUTION 47
Infrastructure spend needed to cushion impact of Covid-19 47
Cement & Concrete SA to drive the industry to new heights 49
Let Bauer take you into the future with energy-efficient power 50
INFRASTRUCTURE DEVELOPMENT 51
Cross-border operations: tapping into opportunities in Angola 51
Space-age challenge at MeerKAT 54
WATER RESOURCE MANAGEMENT 56
Scarcity of fresh water has become an unavoidable and serious threat 56
IN BRIEF 58
What water stewardship can do for corporates 58
2020/21 Africa Property & Construction Cost Guide launched 58
Cutting corners on site could be catastrophic 59
SA’s first Energy Performance Certificate issued 60
New advisory consortium to assist IPPs in 5th bid window 60
Keeping houses from a sinkhole 61
CARTOON 61
Civillain by Johan Ptak: Lab experience 61
CONTRACTS 63
Guidelines for Amicable Settlement Procedures 63
SAICE AND PROFESSIONAL NEWS 68
SAICE takes training to new heights 68
SAICE Training Calendar 2021 69
BACK COVER 74

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