ECE $5413$ SHALLOW AND DEEP FOUNDATION DESIGN

Proiect Description:

LTU plans to build a new multi$-$use laboratory building on$-$campus. The column layout for part of the building is shown in Figure $1.$ Three cone penetration tests and three exploratory borings have shown in Figure $2$ and Figure $3.$ The laboratory building columns are subjected to design load ranges from $150$ kips to $800$ kips and service loads range from $100$ kips to $550$ kips $.$ The ground water level is observed from the exploration borings at $9$ ft from the ground surface.

A preliminary design shows that shallow foundation won't meet the serviceability limit state requirements. Therefore, concrete driven piles without predrilling and jetting are considered to be configurations: single pile or a pile group with $22$ pile matrix $($you mays the feasibility of two pile if needed$).$ Using ASD method with $F_s=3\mathrm{.}0$ and the data provided, determine the pile configuration $($for single pile: length, embedment depth; for pile group: depth, pile matrix and the expected settlement to support the downward design column load. Concrete piles of averag diameter $1\mathrm{.}0$ ft and average length of $40$ ft are readily available. The concrete has $f_c^{\text{'}}=4000$ and $=0\mathrm{.}02.$ Based on your calculations, please provide $\frac{f}{f_n}-{}_z$ and $\frac{q^{\text{'}}}{q_n^{\text{'}}}-{}_z$ curves for the pile head, you should allow for a $0\mathrm{.}75$ ft cutout from the pile head. What is the settlement of the pile and pile group

ECE $5413$ SHALLOW AND DEEP FOUNDATION DESIGN

$\backslash$table$[[$Depth $($ft$),$Deposit,Soil Test Results$],[0$ to $9,$Sand,$=109pcf,{}^{\text{'}}=28$