A barge filled with sand approaches a bridge over the river and cannot quite pass under it. Should sand be added to or removed from the barge to get it under the bridge? Explain.

Why would a sand and gravel pit be located in a residential neighborhood?

How the significance of effective stress and drainage during shearing can be explained?

Problem #2: Design a (One Way Slab) slab whose clear length is 20 ft x 12 ft which is subjected to a live distributed load of 150 psf.

A twenty-story hospital building with a 400 ft x 200 ft footprint is to be built on a site underlain by fill over glacial sands. The building will have a 25-ft deep basement and will probably be supported on either a mat foundation located 5 ft below the bottom of the basement, or a deep foundation extending about 100 ft below the bottom of the basement. The groundwater table is about 30 ft below the ground surface and bedrock is about 120 ft below the ground surface. There are no accessibility problems at this site. (a) How many exploratory borings will be required as per NYC Code, and to what depths should they be drilled? (b) How would you obtain groundwater data? Explain your answer.