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Pole Retaining Wall Design Guide. The wall in figure 1 is 800mm wide and 1600mm high. How to build a retaining wall.
Concrete Retaining Wall Design Guide Concrete retaining from www.pinterest.com
Typical bored concrete timber pole retaining wall construction details poles centres poles centres span span ttt poles in bored concrete foundations ttt timber retaining wall rails rails are rough sawn, available with or without two arrised edges, grade sg6 or sg8 as per retaining wall summary. Walls exceeding 400 mm high should have a 1 : Gravity retaining walls gravity retaining walls are a basic design and rely on the mass of the wall to retain the earth behind.
In low to moderate height retaining walls the maximum bending moments in the poles occur at depths of between 0.5 to 1.5 m below ground level. Designing retaining walls when a building consent is required, the wall must be specifically designed by a registered engineer. The auckland design manual provides supplementary guidance to the unitary plan on design matters, which will be updated by the council from time to time. Ministry of business, innovation and employment (mbie) section 20 (retaining walls) states the requirements around constructing a retaining wall without a building consent.
