Calculate the active force per unit length of the wall

Assignment Help Mathematics
Reference no: EM131105140

A 5-m high retaining wall with a vertical back and an inclined backfill is shown in the figure below. The inclination of the backfill with the horizontal is 15°.
A. If the wall is considered frictionless, find the magnitude and location of the Rankine active force Pa per unit length of the wall after the occurrence of the tensile cracks. B. If the wall is frictional and the angle of wall friction 5 = 15°, calculate the active force per unit length of the wall and the location of the force, using Coulomb's equation.

 

1024_1.png

Problem (2) (20 points) 

A clay slope is built over a layer of rock. The height of the slope is 12 m and the slope angle p = 30°. 

Determine the factor of safety if kh=0.4 for the slope. The soil properties are: saturated unit weight VSAT = 18 kN/m3 and the undrained shear strength cu = 40 kN/m2. 

Problem (3) (20 points) 

A square footing is founded at a depth of 0.92 m below the ground surface. Due to inadequate drainage, the ground water table is located at the ground surface. The subsoil is cohesionless with ysAT = 18.5 kN/m3 and 0' = 40°. The footing must carry a gross allowable load of 700 kN with factor of safety of 3. Find the required size of the footing using Terzaghi's general shear failure theory. 


Attachment:- HW #3.pdf

Reference no: EM131105140

Questions Cloud

Balance of the loan after the first year : The first extra $2,000 will be paid after month 12. What will be the balance of the loan after the first year of the mortgage?
Record the adjusting entry for tom investments : Tom Investments invested $2,500,000 in a term deposit on January 1, 2011. Interest is paid after one year and interest rates are 8%. Record the adjusting entry for Tom Investments on 31 July 2011.
Consider a situation where a particular product : Consider a situation where a particular product is produced and placed in in-process inventory until it is needed in a subsequent production process.
Treasury bond futures contract : Boyd Company sold a futures contract (one) on Treasury bonds that specified a price of 98-19. When the position was closed out, the price of the Treasury bond futures contract was 100-09.
Calculate the active force per unit length of the wall : A. If the wall is considered frictionless, find the magnitude and location of the Rankine active force Pa per unit length of the wall after the occurrence of the tensile cracks. B. If the wall is frictional and the angle of wall friction 5 = 15°, cal..
Reviewing the accounting cycle : Interest for 6 months at 6% per year on the note is unpaid and unrecorded at year end - Advertising of $14,874 remained unused at the end of 2013.
What is the value of the stock today : After Year 5, the company should grow at a constant rate of 8% per year. If the required return on stock is 15%, what is the value of the stock today?
Use dynamic programming to determine : Reconsider the example used to illustrate the deterministic periodic-review model in Sec. 19.4. Suppose that the following single change is made in the example.
Which system should blooper install : Quick & Dirty Systems sells a relatively cheap purification system for $10 million. The system will last 5 years. The firm's tax rate is 35 percent, and the discount rate is 12 percent. Which system should Blooper install?

Reviews

Write a Review

Mathematics Questions & Answers

  Explain accurate description of the salaries

The statistic most often used to describe company salaries is the median or the mean. For this company, does the mean give an accurate description of the salaries? Why or why not?

  Reading readiness of preschoolers from impoverished

reading readiness of preschoolers from an impoverished neighborhood n20 was measured using a standardized test.

  Psychologists interested in learning theory

Psychologists interested in learning theory study learning curves.

  Describe the height of the ball above the ground

described the height of the ball above the ground, h, in feet, t seconds after the fall begins. How long will it take the ball to strike the ground?

  What is the probability that equivalence is indicated

what is the probability that equivalence is indicated at 100 mL. what is the probability that equivalence is indicated at less than 100 mL

  What is the maximum error of the numerical solution

Print out the code itself and a graph of the solution of your code in [0; 10]. What is the maximum error of the numerical solution and the analytical solution in this interval?

  What step should one take to avoid lengthy computations

What step should one take to avoid lengthy computations of binomial probabilities? When is this option not available?

  Find the mass of the cylinder

The density, δ, of the cylinder x2 + y2 ≤ 25, 0 ≤ z ≤ 2 varies with the distance, r, from the z-axis: δ=2+r g/cm3. Find the mass of the cylinder, assuming x,y,z are in cm.

  What is the crossover rate between project a and project b

What is the crossover rate between Project A and Project B?

  What is the median recovery time

Everyone who scores in the top 30% of the distribution gets a certificate. What is the lowest score someone can get and still earn a certificate?

  The amount of paper used by 30 so you change shape of

a typical sheet of newspaper is a rectangle that measures 22.75 inches tall by 15 inches wide. you want to maintain the

  Quotient-composite rules

Find any stationary points of the function from 1a. An use the first derivative test to see whether they are local maximum or local minimum of f(x).

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd