2.19 A consolidated-drained triaxial test was carried out on a nor- mally consolidated clay specimen, and the following results were recorded: σ 150 kN/m 2 and ΔΟ, -260 kN/m2 An identical specimen from the same clay was subjected to a consolidated-undrained test with a confining pressure of 150 kN/m2, and the additional axial stress at failure was 115 kN/m2 a. What is the pore water pressure at failure in this second specimen? b. What is Skempton's pore pressure parameter A at failure?

Generally, shallow foundations, such as poured concrete spread footings, offer definite cost advantages over deep foundation types, such as piles. Assume that you are making a presentation to a nontechnical audience; outline reasons for the usually significant cost differential between shallow and deep foundations.

Quantity Surveying.   Plz, answer all the question parts.

QUESTION 40 1. Transient analysis and limit stability analysis mean the same thing and thus can be used interchangeably. True False QUESTION 41 1. Tension cracks would usually occur first on the ground surface thus indicating the onset of slope instability. True False QUESTION 43 1. The retaining wall worked as a barrier against excessive groundwater loss and safeguarded the buildings located behind it. True False QUESTION 30 1. The sea water level causes the groundwater table to fluctuate on site. True False