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This is all part of 1 Question
If the gauge of the railroad shown on the plan above is 1.9 m and produces a line-like loading at the centre of the railroad surface, what is the influence factor to determine incremental vertical stress at distance Y of 1.5 m and depth of 0.5 m is (3 d.p).
If HALF of the gauge of the railroad shown on the plan above is 2.2 m and produces a strip-like loading at the surface, what is the influence factor to determine incremental vertical stress at distance Y of 0.9 m and depth of 7.8 m is (3 d.p)