Engineering Design - Ground Anchors

The design of two options for structural supports for solar panels is required. The scope of works is as follows: 1. Provide from first principles, showing all workings, the most efficient design of two options for structural supports for the typical solar panel modules - solar panel arrangement show in drawing pack - 90 Module Mech Set. Solar Panel dimensions to be assumed is 1m x 2m x 0.3m at a weight of 26kg per panel. Design is to be current Australian Standards - refer to Aust Standards in design calculations. The two options for structural supports are shown in the attached drawings - SA1072520 (a helix screw pier) and Gen 2.2 V2 Motor Pier W6/Gen 2.2v2 ArrayPierW6x Base (I-Beam) The aim of this portion of the scope is to confirm the required depth of embedment into the ground for each option, given when the depth is reached, the Screw pile or I-Beam will be at a height of 1m above ground for mounting of the solar panel modules. Plus the thickness and sizing of each option to allow estimating for pricing per unit to install into ground. The supply of the site geotechnical report is supplied for use. 2. Create a soil model for the infrastructure area including the switchyard area based on the geotechnical report. model to include friction angle, cohension, soil profile, etc 3. Check the calculated loads in the attached spreadsheet for accuracy and identify errors in calculations and highlight required corrections. All first principle design to be shown for all potential corrections. 4. Check the axial and lateral capacities of a W6x9 (150x100UB) I-Beam in both soil models. All checks to be shown from first principles with all calculations provided. All design calculations are to be to Australian Standards and all calculations are to be shown in the delivery of the design. To summarise the scope - looking to confirm the most efficient sized anchor against two options, a helix circular hollow section or an I-Beam required to support the solar modules for a solar farm in Australia based on the soil conditions identified in the geotech report. Also checking calculated loads on the spreadsheet and check loading for a specific I-Beam. Lastly, generate a soil model for the infrastructure area.