Portal Frame on poor ground. 1m-1.5m of sandy graverlly clay fill on dense sandy gravel. Vibro compacted stone piles been used to bring ground bearing capacity to 150kn/m^2. Calculated horz. force of 50kn/m^2.
Is value of .45 for co. of friction too high. Worried about shear across stone piles.
Is value of .45 for co. of friction too high. Worried about shear across stone piles.
