Reference no: EM131227010
Round off your results appropriately in each case. Work without appropriate UNITS will be returned without grading.
Note: Total allowable settlement = 25 mm.
Q1. Fig.1 shows the soil profile and Table below shows the SPT N data. Bore hole size = 100 mm. Standard split spoon sampler and standard energy were applied for SPT tests.
Apply rod-length corrections, and overburden stress correction. Determine (N1)60, estimate relative density Dr, friction angle Φ', and modulus E and plot all of them in a figure. Depth must be plotted increasing downward in the figure. Appropriate scale must be used for axes.
Q2. Determine the allowable bearing stress qall based on both, tolerable settlement and ultimate bearing capacity qult with at least FS=3, for the following cases (a) to (c).
Use (a) Terzaghi & Peck method, as well as (b) Schmertmann's method (use simplified Iz diagram) for settlement calculations. Ignore creep settlement.
a) Strip Footing, B= 1.75m, Depth of embedment = 1m.
b) Rectangular Footing: B=1.75m, L=2B, Depth of embedment = 1m.
c) Circular Footing (same cross sectional area as (b)). Depth of embedment = 1m.
d) Determine the allowable Load Q for a, b, and c. Depth of embedment = 1m. Neatly tabulate your results.
Fig.1: Soil Profile at a Site
Sand
Assume moist unit weight = 16.4 kN/m3
Ground water (1m below ground level), Assume saturated unit weight = 18.5 kN/m3;
Unit weight of water = 9.81 kN/m3
Bedrock at 15m depth
|
Depth
|
SPT
|
|
m
|
Nm
|
|
0
|
|
|
1
|
10
|
|
2
|
12
|
|
3
|
16
|
|
4
|
8
|
|
5
|
10
|
|
6
|
12
|
|
7
|
15
|
|
8
|
13
|
|
9
|
16
|
|
10
|
20
|
|
Develop a thesis pertaining to the assigned film text
: Develop a thesis pertaining to the assigned film text and whether or not it, the film, in your view has the power to transform one's political sensibilities. Your argument should express your point of view regarding the politics of difference, pol..
|
|
Commercial transactions foreign language
: 1. The probability that a manager who makes business transactions in a foreign language is 0.2. Ten (10) managers are chosen randomly. a) What is the probability that none make commercial transactions foreign language?
|
|
How will the us company report the forward contract
: Draft a memo to a client comparing the advantages and disadvantages of using forward contracts and options to hedge foreign exchange risk. How will the U.S. company report the forward contract on its December 31, 2009, balance sheet?
|
|
Correlation and bivariate regression testing
: Review this week's Learning Resources and media program related to regression and correlation. Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in the Learning Resour..
|
|
Determine the allowable bearing stress
: CIE435 - Foundation Engineering - Determine the allowable bearing stress qall based on both, tolerable settlement and ultimate bearing capacity.
|
|
Briefly explain action that you believe need to be developed
: Explain the actions that you believe need to be developed and implemented to accomplish change. Discuss your solution from multiple perspectives, such as educational, legislative, scientific, technological, economic, and other points of view.
|
|
What is the largest value that can be represented
: A designer wants to represent all decimal numbers from 0 to 33. How many bits are needed? What are the binary representations for 0, 7, IS, 31 and 33? What is the largest value that can be represented?
|
|
Confidence interval for the coefficient of age
: Construct a 95% confidence interval for the coefficient of AGE. Report the upper limit only correct to one decimal place.
|
|
Calculate the vif for x2 correct to two decimal places
: A multiple regression model is estimated using 3 explanatory variables. The r^2 was found to be 0.77. the coefficient of determination for the regression of X2 on the other explanatory variables was found to be 0.69. Calculate the VIF for X2 corre..
|