Admin Welcomes U ANNA UNIVERSITY Sixth Semester Civil Engineering CE340 – FOUNDATION ENGINEERING ~ ANNA UNIVERSITY QUESTION BANKS PAPERS WITH SOLUTIONS

JOIN WITH US :)

If any add appear like this please click skip add

Category

INFO

CLICK HERE
FOR LATEST RESULTS
LATEST NEW TIME TABLE/EXAM DATES FOR ALL LINK1 LINK2
ANNA UNIVERSITY COLLEGES RANK LIST 2012 CHECK SOON
LATEST FREE PLACEMENT PAPERS FOR ALL COMPANIES CHECK SOON
GET FREE MINI PROJECTS AND FINAL YEAR PROJECTS CLICK HERE
LATEST HOT HACKING TRICKS CLICK HERE

LATEST QUESTION BANKS /PAPERS/entrance FOR ALL EXAMS CLICK HERE link1 link2




our sites
www.tricksnew.blogspot.com www.questionbank.tk
www.freeminiproject.blogspot.com and
www.onlineinfocity.
blogspot.com


NOTE:

FEEL FREE TO CONTACT US click on me
DONT FORGET TO SUBSCRIBE YOUR MAIL ID ----->>>TO GET DAILY question banks IN YOUR INBOX::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: SEE RIGHT SIDE CORNER

Saturday, April 28, 2012

ANNA UNIVERSITY Sixth Semester Civil Engineering CE340 – FOUNDATION ENGINEERING




ANNA UNIVERSITY :: CHENNAI – 600 025
B.E. / B.Tech. DEGREE EXAMINATIONS, APRIL / MAY 2004
Sixth Semester
Civil Engineering
CE340 – FOUNDATION ENGINEERING

(Model Question Paper)

Time : Three hours                                                                                   Maximum : 100 Marks
Answer ALL questions
Part A (10 x 2 = 20 marks)

1.         Give the important parameter to fix the significant depth of exploration.
2.         Mention the factors that affect the sample disturbance.
3.         What are the different types of shear failures? Draw the sketches.
4.         Mention the components of settlement of foundation.
5.         Differentiate between cantilever footing and raft foundation.
6.         List out the methods for design of mat foundation.
7.         Under what circumstances the negative skin friction will develop.
8.         List out the necessities of pile foundation.
9.         State the assumptions made in Rankine’s earth pressure theory.
10.        What is the critical height of unsupported vertical cut in case of cohesive soils?

Part B (5 x 16 = 80)

11.        Design a strap footing for the two columns. The allowable soil pressure is 100 kN/m2. Load on left column = 600 kN. Load on right column = 1000 kN, size of left column = 0.3m x 0.3m, size of right column = 0.4m x 0.4m, centre to centre distance between columns = 6m. Eccentricity of footing of left column = 1m. Take the allowable soil pressure as 100 kN/m2. Draw BMD and SFD. Find the thickness of footings for the design B.M.                                                                                                                          (16)

12. (a)  Explain the factors governing the spacing, number and depth of bore holes for a      
            multi-storey building project.                                                                                      (4)
      (b)  Explain the SPT test with neat sketch and give the correlation between SPT – N values and relative density.                                                                                             (8)

       (c)  What are the corrections required for SPT-N value?                                                    (4) 

(OR)

(a)        What are the commonly used methods of soil exploration? Explain any one method in detail.                                                                                                                               (8)
(b)        What are the basic requirements of good foundation?                                                   (4)    
(c)        What are the necessary data required for plotting the bore log for any soil investigation project.                                                                                                                          (4)

13.        Calculate  the  ultimate  bearing  capacity  per  unit area of (i) Strip footing 2.5m wide (ii) Square footing 4.75 x 4.75 m (iii) Circular footing 5.25m diameter. The footing is supported on a soil for which the following data is available. g = 19.5 kN/m3 ; C=17.0 kN/m2, j=200, depth=1.75 m.
            Use Terzhaghi’s equation. Take Nc = 17.7, Nq = 7.5, and Nr = 5.0.                  (16)

(OR)

            A building 10m x 20m in plan is built on a raft foundation resting on the surface. The soil profile consists of 4m dense sand over 3m thick silty clay layer resting on rock. The water table is at 2m below ground level. Consolidation test conducted on UDS of clay layer gave the results as follows.
            Initial and final void ratios and corresponding stresses are,
             e0 = 1.1;          s0 = 2000 kN/m2;          ef = 1.0;            sf’ = 1000 kN/m2;               (16)                    

14.        (a)  Classify the pile based on functions, mode of transfer of load and method of  
                  installation with neat sketches.                                                                             (8)
            (b)  Explain how do you determine pile load capacity from pile load test.                        (8)

(OR)

A pile group consists of 9 piles of 30 cm diameter and 10 m length driven in clay. Unconfined  compressive  strength  of  soil  is  200  kN/m2  and  insitu density of soil is 20 kN/m3. Determine the safe load for the pile group. a = 0.6 and F.S. = 3.              (16)


15.        Determine the active pressure on the retaining wall shown in figure by Culmann’s method.                                                                                                       (16)

 









(OR)

            A retaining wall 4m height with smooth backfill and horizontal surface subjected to a surcharge of 36 kN/m2 uniformly. Saturated density of backfill is 18 kN/m3, f = 300, C=0, find the active earth pressure and the point of application of the resultant pressure.  (16)


spl thanks to 

Ms. AISHWARYA J

0 comments:

chitika