if the sheet pile wall is 80 m long (into the page), what is the flow rate (per day) under the entire length of wall if the coefficient of permeability is 4×10-5 cm/s? flow rate under the dam (m3/day) b. what is the total vertical stress, porewater pressure, and effective vertical stress at a? total vertical stress (kpa) porewater pressure (kpa) effective vertical stress (kpa) c. what is the total vertical stress, porewater pressure, and effective vertical stress at b? total vertical stress (kpa) porewater pressure (kpa) effective vertical stress (kpa)