Learn to Manage Earthworks for
- Landscaping
- Construction
- Engineering
- Environmental management
Course Duration: 20 hour
Course Content
This course is spread over seven lessons as follows:
1. SCOPE AND NATURE OF EARTHWORKS
- Nature of Earthworks
- Surveying and levelling
- Excavation
- Shoring
- Installation of services and drainage
- Fill
- Earthworks applications
- Landscaping and landscape architecture
- Agriculture and farming
- Environmental management and land rehabilitation
- Civil engineering and construction
- Land clearance
- Grading and levelling land
- Levelling terminology
2. SITE PREPARATION
- Surveying and Levelling
- Levelling
- Taking levels
- Triangulation
- Site Investigation, Soil and Subsoil
- Investigating soil characteristics
- Soil types
- Land Clearing - topsoil, weeds, location of services, water bodies, access
- Surveying techniques
- Trigonometrical levelling
- Field work
3. GROUND SURFACE SHAPING
- Earth Forming
- Ground Shapes
- Limitations imposed by machines and materials
- Cost factors
- Functional aspect of land use
- Site physiology, water table
- Angle of slopes
- Plant cover
- Creating Mounds
- How To Build a Raised Garden Bed
- Shaping sloping ground
4. GRADING & EARTHMOVING
- Stripping and siting topsoil
- Planning grading operations
- Filling
- Weather conditions and water table
- Phasing topsoil requirements
- Preparation prior to laying topsoil
- Grading Principles and Methods
- Grading considerations
- Site grading drawings
- Earthmoving Tools
- Earthmoving Machinery
- Fixed machines
- Moving machines
- Tractors
- Loaders
- Back hoes
- Bull dozer
- Excavator, graders, scrapers, etc.
- Earthmoving
- Shape stability
4. EARTHWORKS CALCULATIONS
- Cut & Fill Calculations
- Measuring cross sections
- Prismoidal Formula/ Simpson’s 1/3 Rule
- Other methods
- Earthworks calculation software
- Angle of repose
- Drainage Considerations
- Earthwork calculation
6. STABILISING METHODS
- Compaction
- Required degree of compaction
- Dynamic compaction
- Types of rollers
- Tampers
- Avoiding compaction
- Surface Treatments
- Drainage
- Improving water infiltration
- Machine or hand cultivation
- Mixing soil additives
- Chemical treatments - lime, gypsum, buffered poly-lignosulphonates, etc
- Improving Surface Drainage After Construction
- Sand slitting, Aerating, Subsoiling
- Points To Remember When Designing a Drainage System
- Drainage Effectiveness
- Rate of Excess Water Reaching Soil
- Soil stabilisation material
- Soil stabilisation methods
7. SOIL STORAGE AND FILLING
- Removal, Storage and Reinstatement of Topsoil
- Stockpiling procedures
- Removal
- Storage/ Proper storage
- Reinstatement of topsoil
- Filling Materials waste materials, water borne soil transportation
- Working With Filled Land
- Rehabilitation
- Mining sites
- Building sites
- Growing plants
- Phytoremediation
- Dealing with erosion
- Sediment and erosion control
- Final Assessment