Please answer this problem with solutions neatly, accurately, and with necessary drawings/figures. Kindly encode everything, if possible. LATERAL EARTH PRESSURE A 9-meter-high basement wall is built in a normally consolidated soil with a unit weight of 18.5 kN/m3 and an angle of internal friction of 30°. The water table is located at a depth of 4 meters below the ground surface. A new construction on the adjacent lot applies an additional surcharge pressure of 12 kPa on the ground. Calculate the at-rest lateral earth pressure distribution and the total at-rest force per unit length of the wall, considering both the soil and water pressure.