Knowing the shear strength of soil is important. Select the CORRECT combination statement on shear strength. It has three distinct strengths: peak, critical (or ultimate) and residual ii. To derive the bearing capacity, design retaining walls, evaluate the stability of slopes and embankments ii. It is shear resistance of soil which a result of friction and interlocking of particles but not due to the cementation or bonding at particle contacts iv. The drained shear strength is the shear strength of the soil when pore fluid pressures, generated during the course of shearing the soil, are able to dissipate during shearing. i. i,ii,i i,ii,iv O ii and iv All of above

Q: In uniform, cohesionless soil deposits, how does the soil rigidity (or modulus of elasticity)…

A: Soil is an elastic material hence it undergoes deformation and produces stress and strain to it…

Q: Amixed soil is found to possess a unit cohesion of 500 psf and an angle of internal friction of 30°…

A: Given data: Formula to calculate shear force:

Q: The property of soil which enables it to resist shear stress is called:   A. Cohesion B.…

A: Explanation:Cohesion is the component of shear strength of a soil that is independent of…

Q: Determine the stress increase due to the embankment load at point A as shown in Figure 2. The unit…

A: Draw the figure.

Q: ) You are working for a construction company and are building a school. In digging the foundation,…

A: Datum level (confining layer) = 25 m bgsPoint A: Water level = 7 m bgsPoint B: Water level = 7.5 m…

Q: In a shear failure, it is assumed that there is crushing of individual soil grains (True or False)…

A: a) False  in the shear failure it is assumed to be the slip or tilting of the soil layer    B) True…

Q: On the graph paper provided plot the shear strength line for a soil with parameters c' = 5kPa and…

A: Step 1: Given data. Step 2: Coulomb hypothesis equation. Step 3: Graphical representation of the…

Q: The image below depicts the sand layer on top of the clay layer, with groundwater 2 meters below the…

A: Given, Depth of groundwater table = 2 m   To find : Total, effective and horizontal stress at point…

Q: The soil resilient modulus can be determined by multiplying the California bearing ratio, CBR, (if…

A: The soil resilient modulus can be determined by multiplying the California bearing ratio, CBR, (if…

Q: The soil element with known stress conditions is shown in following figure. (i) construct Mohr's…

A:

Q: Q = 900 kN Ground surface Df = 1 m Ground water table LxB = 3m x 2m eo = 0.5, c = 0.35, c, 0.06,…

A: The depth of the footing(Df)=1 m, The surcharge on the footing(Q)=900 kN, Length of the footing(L)=3…

Q: Define Effective Stress and discuss its importance in soil mechanics.

A:

Q: It is known that the angle of internal friction for the soil comprising a granular deposit is 37°.…

A: Answer  We are given Angle of internal friction ϕ = 37o  Minor principal stress σ3 = 45 Kpa Let us…

Q: A 3-ft-thick (measured vertically) veneer of residual soil overlies a long rock slope inclined at 28…

A:

Q: A3-m thickness of compacted earth fill is placed across an area as preparation for constructing an…

A: The equipment load of 500 KN will not act as a point load as foundation will disperse the coming…

Q: 5-6 Find element. of the principal stresses for the shown soil 50 kPa 30° 10 kPa 25 kPa

A:

Q: A soil element is subject to an overburden pressure equal to 100 kPa. The maximum shear stress…

A: Given data in question  Overburden stress 100 kPa Maximum shear stress 30 kPa To find out  Lateral…

Q: (a) Determine the total and effective principal stresses. (b) Recommend the shear strength…

A:

Q: Determine the effective stress increase, rate of increase of effective stress in the soil at depth…

A:

Q: A footing of size 2mx 2m transferring a pressure of 200 kN/m², is placed at a depth of 1.5 m below…

A: Given : Size of footing =2m×2mPressure on soil=200kN/m2Depth of footing or depth of soil…

Q: a) In a geotechnical laboratory an oedometer test on a saturated clay soil was conducted. The…

A: Given data- Cc=0.2Cr=0.04OCR=4.5H=2mw=28%σ¯present=130 kPa∆σ¯=50 kPa

Q: Apparent conesion does not arišé fröm a. Negative pore water pressures b. Negative excess pore water…

A: Solution Correct option of the above question given in 2 step with explanation

Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.