Geotechnics in the African Environment, Volume 1 : Proceedings of 10th Regional Conference for Africa on Soil Mechananics Foundation Engineering & the 3rd International Conference Tropical & Residual Soils, Maseru, 23-27 September 1991, 2 Volumes

Proceedings of the 10th Regional Conference for Africa on Soil Mechanics and Foundation Engineering and the 3rd International Conference on Tropical and Residual Soils, held in Maseru, Lesotho, September 1991, are contained in two volumes. The papers address geotechnical problems peculiar to Africa and engineering solutions for local problems, as well as data on the properties of African soils. Cover Half Title Title Page Copyright Page Preface Organising Committee Table of Contents Third International Conference on Tropical and Residual Soils Lateritic Soils: Chemical & Geotechnical Properties The Role of Iron Hydroxide in the Engineering Behaviour of Tropical Soils The Design, Construction and Behaviour of Permanently Cased Piles at Sua Pan, Botswana The Origin and Engineering Properties of the Cainozoic Pan Sediments at Sua Pan, Botswana Piles in Deep Residual Clays Characteristics of a Deeply Weathered Residual Norite Retention Forces for Cuts in Slopes of Limiting Equilibrium Slope Failures Associated With The Floods of September 1987 and February 1988 in Natal and Kwa-zulu, Republic of South Africa Deterioration and Rehabilitation of Earth Roads in Madagascar Railway Embankment Failures Due to Dispersive Soils Derivation of Interim Performance-Related Specifications for Coarsely Graded Plastic Calcrete Basecourse Gravels The Extraordinary Phenomenon of Chemical Heaving and Its Effect on Buildings and Roads A Case History of Structural Distress on Heaving Clay: Colinda Primary School Tenth African Regional Conference on Soil Mechanics and Foundation Engineering 1: Engineering Geology; Waste Disposal and The Environment The Engineering Geology of the Wolwedans Dam Grouting of Dolomite Under Foundations for a Large Bridge An Engineering Geological Rock Mass Characterization System for Tunnelling Purposes A Geohydrological Study of the Vaal River North Bank for the Design of Water Conservation and Seepage Control Measures The Need for Proper Domestic Waste Disposal Management in Developing Countries Soil Erosion Patterns of Mollisols in the Katse Watershed 2: Roads The Applicability of Pavement Evaluation and Rehabilitation Design Methods in Botswana Use of the Dynamic Cone Penetrometer (DCP) in the Design of Road Structures Mechanistic Pavement Design Using a Pencel Pressuremeter (PSPP) Factors Influencing the Comparability and Bearing Capacity of Untreated Roadbuilding Materials The Long-Term Durability of Lime-Treated Soils Aggregate Durability: Recommended Tests and Specification Limits for Road Basecourse Effects of Undermining a Gravel Road Near Secunda by Longwalling 3: Foundations Settlement and Allowable Pressure on Sand Full Scale Pile Testing Under Controlled Conditions Load Transfer Functions and Pile Performance Modelling Design and Performance: Piled Raft Foundation Beneath the New 26 Storey Palace Hotel in Durban New Options for Foundations on Heaving Clay Development of Raft Foundations for Small Structures on Heaving Clay 4: Laboratory and Field Testing A Comparison of the Three Swell Test Procedures Lateral Swelling Pressure Developed in an Active Clay Microprocessor Control of the Drained Triaxial Test Piezocone Testing to Predict Soft Soil Settlement A Simple Field Suction Measurement Probe 5: Dams Breaching of an Earth Dam in the Western Cape by Piping The Use of Dynamic Replacement and Slurry Cut-Off Key for Dam Construction on Soft Organic Alluvium Countering Potential Piping at an Earth Dam on Dispersive Soils 6: The Lesotho Highlands Scheme: Geotechnical Engineering Aspects Geotechnical Investigation for Katse Dam, Lesotho Lesotho Highlands Scheme – Compactability Problems of Crushed Stone Expected Engineering Geology of the Transfer Tunnel Reinforced EarthTM in the Lesotho Highlands Water Scheme 7: Problem Soils A Case Study of the Effects of Unsuitable Foundations for Residential Dwellings Constructed on Collapsing Sands and The Remedial Measures Required Prewetting Expansive Clay to Minimize Heave of Structures The Influence of the Mineralogy on the Durability of Drakensberg Basalts The Impact Rolling of a Large Housing Site Boksburg The Investigation, Design and Monitoring of Concrete Raft Foundations on Expansive Soils: A Case Study of Preliminary Performance 8: General The Creation of Job Opportunities in Geotechnical Construction