Derive general formula used in stress and triaxial test calculations in Geotechnical analysis.

11. Suppose the soil beneath the footing is now a sand with average SPT N60 of 28 (see below). Predict the footing settlement (in inches) using Meyerhof's formulas. 2 ft 18 ft 6 ft P = 72 kips Sand, y = 118 pcf Sand N60 = 28 Gravel

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

For each of the building properties listed below, identify which parameter from the base shear equations shall apply. Building occupancy and function Seismic Base Shear In accordance ASCE-7 code, buildings must be designed to withstand lateral forces that are generated during a severe earthquake. The minimum required design force is given in several equations. Design Base Shear, V= C, W Seismic response coefficient, C,, is the smaller value from two equations: In these equations: C₂ = C₂ < Sp! R Spy R Sor & Spare Seismic Acceleration Parameters from USGS maps is Importance Factor Tis Period of Vibration, (depends on building height & must be calculated) Ris Response Modification Factor from ASCE Table Wis the Effective Seismic Weight of the building. SD1 and SDs, seismic acceleration parameters R, response modification factor I, importance factor T, period None of these

8765: civil engineers determine the appropriate depth of foundation for a building? Explain the concept of soil bearing capacity and its significance in foundation design. What factors influence the choice between shallow and deep foundations? Describe the process of soil stabilization and its importance in construction projects. How do civil engineers assess the risk of liquefaction in areas prone to earthquakes? Discuss the principles behind retaining wall design and their role in preventing soil erosion. Explain the concept of compaction in soil mechanics and its implications for construction quality control."

After the soil samples are taken and the soil properties determined, the engineer must design the foundation. It typically takes the engineer 4.75 days to design a foundation with a standard deviation of 0.83 days. Use this information and the information provided in Problem I to answer the following questions: a. What is the probability of completing all of the work (field sampling, testing, and design) within 43.5 days? b. The engineer completes the field sampling and testing in 36 days. What duration of the design work should be planned in order to ensure with 85% confidence that all of all of the work will be completed within 43.5 days?