A COMPARATIVE STUDY OF LANDSLIDES AND GEOHAZARD ...

LIST OF TABLES
Table 3.1 : Classification of Landslides 40
Table 3.2 : Causes of Landslides 46
Table 3.3 : Damage Caused by Some Previous International
Landslides 54
Table 4.1 : Landslides Inventory in Malawi and Their Impacts 66
Table 6.1 : Landslides Inventory 90
Table 6.2 : Landslides Classification Based on Age and Degree
of Stabilisation 99
Table 6.3 : Landslides Classification Based on Channel
Morphometry and Materials Involved 100
Table 6.4 : The Determination of the Initial Point of Failure 101
Table 6.5 : Impacts of Recorded Landslides 102
Table 7.1 : Liquid Limit for the Ntchenachena, Chiweta, Mvai,
and Livilivi Areas 115
Table 7.2 : Plastic Limit for the Ntchenachena, Chiweta, Mvai,
and Livilivi Areas 115
Table 7.3 : Plasticity Index for the Ntchenachena, Chiweta,
Mvai, and Livilivi Areas 116
Table 7.4 : Results of the Soil Analyses of Liquid Limit, Plastic Limit,
and Plasticity Index 116
Table 7.5 : Hydraulic Conductivity Analysis Results 118
Table 7.6 : Aggregate Stability Analysis 118
Table 7.7 : Bulk Density Results 119
Table 7.8 : Total Porosity Results 120
Table 7.9 : Results of the Analyses of Hydraulic Conductivity, Total
Porosity, Aggregate Stability, and Bulk Density 121
Table 7.10 : Total Sand Test Results 122
Table 7.11 : Medium/Fine Sand Test Results 123
Table 7.12 : Silt Test Results 123
Table 7.13 : Clay Test Results 124
Table 7.14 : Results of the Analysis of Soil Particles 124
Table 7.15 : Vegetation Parameters for the Study Areas 130
Table 7.16 : Slope Angle Determination Using Hoek’s Critical Angle 133
Table 7.17 : Slope Angle Determination Using Fernandes’s Critical
Slope Ranges 134
Table 8.1A : Duration of Residence 150
Table 8.1B : Age of Respondents 150
Table 8.2A : Education of Respondents 151
Table 8.2B : Income of Respondents 152
Table 8.3 : Types of Housing 153
Table 8.4 : Location of Settlements 153
Table 8.5 : Reasons for the Location of the House 154
Table 8.6 : Knowledge of Past Landslides 155
Table 8.7 : Years of Landslides Occurrences 155
Table 8.8 : Did Events Occur as a Surprise? 156
Table 8.9 : Weather Conditions Before the Landslides 157
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