I need to prepare a calculation mote for the Structural design of Wood / Timber Shoring. Please refer to the attached pdf file. The design should include:
1. Design and Sizing of Wooden/Timber Strut.
2. Design and Sizing of Wooden/Timber Wailer.
3. Checking the capacity of the 3-inch Hard Wood Lumber Lagging.
The soil behind the Lagging is a DGA. Recycled concrete material (Consider Phi Soil = 40 degree and water on the upper left side of lagging). Ignore the design of concrete wall on the right side.