CEG 4012 Geotech Eng II\ Chaps 9-10\ Assessment Exercise 1\

$2024

\ Due: in class, 12 noon, Jan 29\ Free Response (20 points)\ A site is under consideration for commercial development. Subsurface investigation and soil testing determined the profile and soil index properties shown in Figure (a). Planned infrastructure loading and the foundation plan are shown in Figures (b) and (c). Perform the following analysis:\ a) Determine the pre-construction soil effective stress at depths

A

through

E

.\ b) Determine the vertical stress increase

(\\\\Delta \\\\sigma _(z))

due to the infrastructure load and post-construction effective stresses for corner and center points

T

and

S

for depths

A

through

E

.\ c) Summarize results in a table and evaluate suitability of the site for the planned development. Briefly discuss any concerns you may have.

Free Response (20 points) 1. A site is under consideration for commercial development. Subsurface investigation and soil testing determined the profile and soil index properties shown in Figure (a). Planned infrastructure loading and the foundation plan are shown in Figures (b) and (c). Perform the following analysis: a) Determine the pre-construction soil effective stress at depths A through E. b) Determine the vertical stress increase (Z) due to the infrastructure load and post-construction effective stresses for corner and center points T and S for depths A through E. c) Summarize results in a table and evaluate suitability of the site for the planned development. Briefly discuss any concerns you may have. (a) Undeveloped site (b) Development plan