an engineering geological characterisation of tropical clays - GBV

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Contents
Page
Acknowledgements
Summary (Abstract)
Chapter 1. Introduction 1
1.1 Scope of study 1
1.2 Location of the study area 2
1.3 Definition of study problem 2
1.4 Summary of case problems 4
1.5 Physiography 8
1.6 Climate 11
1.7 Method of survey 13
Chapter 2. Previous works 15
2.1 Summary 15
Chapter 3. Geology 19
3.1 Introduction 19
3.2 Precambrian rocks of the Mozambique Belt 20
3.3 Volcanic rocks 21
3.3.1 Kapiti phonolite 24
3.3.2 Nairobi phonolite 25
3.3.3 Nairobi trachytes 27
Chapter 4. Field methods 30
4.1 Introduction 30
4.2 Investigation and sampling scheme 30
4.3 Cone penetration depth sounding 34
4.4 Field vane test 38
4.4.1 Introduction 38
4.4.2 Testing procedure 38
4.4.3 Results of study 40
4.4.4 Applications 43
Chapter 5. Types of soil 45
5.1 Superficial deposits 45
5.2 Soils 46
5.2.1 Red friable clays 48
5.2.2 Black clays (black cotton soils) 53