Learn to move soil to change levels and reform topography for better land management and use.
Lesson Structure
There are 7 lessons in this course:
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SCOPE AND NATURE OF EARTHWORKS
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Nature of Earthworks
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Surveying and levelling
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Excavation
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Shoring
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Installation of services and drainage
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Fill
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Earthworks applications
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Landscaping and landscape architecture
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Agriculture and farming
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Environmental management and land rehabilitation
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Civil engineering and construction
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Land clearance
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Grading and levelling land
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Levelling terminology
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SITE PREPARATION
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Surveying and Levelling
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Levelling
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Taking levels
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Triangulation
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Site Investigation, Soil and Subsoil
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Investigating soil characteristics
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Soil types
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Land Clearing - topsoil, weeds, location of services, water bodies, access
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Surveying techniques
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Trigonometrical levelling
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Field work
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GROUND SURFACE SHAPING
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Earth Forming
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Ground Shapes
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Limitations imposed by machines and materials
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Cost factors
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Functional aspect of land use
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Site physiology, water table
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Angle of slopes
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Plant cover
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Creating Mounds
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How To Build a Raised Garden Bed
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Shaping sloping ground
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LESSON 4 GRADING & EARTHMOVING
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Stripping and siting topsoil
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Planning grading operations
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Filling
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Weather conditions and water table
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Phasing topsoil requirements
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Preparation prior to laying topsoil
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Grading Principles and Methods
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Grading considerations
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Site grading drawings
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Earthmoving Tools
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Earthmoving Machinery
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Fixed machines
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Moving machines
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Tractors
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Loaders
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Back hoes
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Bull dozer
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Excavator, graders, scrapers, etc.
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Earthmoving
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Shape stability
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EARTHWORKS CALCULATIONS
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Cut & Fill Calculations
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Measuring cross sections
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Prismoidal Formula/ Simpson’s 1/3 Rule
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Other methods
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Earthworks calculation software
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Angle of repose
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Drainage Considerations
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Earthwork calculation
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STABILISING METHODS
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Compaction
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Required degree of compaction
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Dynamic compaction
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Types of rollers
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Tampers
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Avoiding compaction
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Surface Treatments
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Drainage
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Improving water infiltration
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Machine or hand cultivation
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Mixing soil additives
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Chemical treatments - lime, gypsum, buffered poly-lignosulphonates, etc
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Improving Surface Drainage After Construction
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Sand slitting, Aerating, Subsoiling
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Points To Remember When Designing a Drainage System
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Drainage Effectiveness
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Rate of Excess Water Reaching Soil
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Soil stabilisation material
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Soil stabilisation methods
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SOIL STORAGE AND FILLING
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Removal, Storage and Reinstatement of Topsoil
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Stockpiling procedures
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Removal
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Storage/ Proper storage
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Reinstatement of topsoil
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Filling Materials waste materials, water borne soil transportation
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Working With Filled Land
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Rehabilitation
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Mining sites
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Building sites
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Growing plants
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Phytoremediation
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Dealing with erosion
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Sediment and erosion control
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Final Assessment
