Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech Civil Engineering (CE) 2020 March 7th and 8th Sem BTCE 813 Reinforced Earth And Geotextiles Previous Question Paper
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech (Civil Engineering) (2012 to 2017) (Sem.?7,8)
REINFORCED EARTH AND GEOTEXTILES
Subject Code : BTCE-813
M.Code : 71872
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
Q1. Write briefly :
a. Types of geosynthetics in reinforced earth construction
b. Difference between geocomposite and geogrids
c. Bearing capacity of geosynthetic reinforced foundation
d. Main features for designing with geomembrane
e. Liners used for underground storage tanks
f. Index test for geotextile testing
g. Aspect ratio and its significance
h. Choice of soil for reinforcement
i. Long term Erosion control system
j. Use of Geocomposite as vapour barrier
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1 | M-71872 (S2)-1486
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech (Civil Engineering) (2012 to 2017) (Sem.?7,8)
REINFORCED EARTH AND GEOTEXTILES
Subject Code : BTCE-813
M.Code : 71872
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
Q1. Write briefly :
a. Types of geosynthetics in reinforced earth construction
b. Difference between geocomposite and geogrids
c. Bearing capacity of geosynthetic reinforced foundation
d. Main features for designing with geomembrane
e. Liners used for underground storage tanks
f. Index test for geotextile testing
g. Aspect ratio and its significance
h. Choice of soil for reinforcement
i. Long term Erosion control system
j. Use of Geocomposite as vapour barrier
2 | M-71872 (S2)-1486
SECTION-B
Q2. What do you mean by ?Reinforced earth?? What are its advantages? Discuss in detail.
Q3. In which case is requirement of low elongation of reinforcement most important and
why?
a. Vertical reinforced soil wall
b. Steeply inclined reinforced soil embankment
c. Reinforced soil slope in soft clay.
Q4. Can two geotextiles have same coefficients of permeability but different transmissivity
and permittivity? Which are two parameters mainly used from the three mentioned for
geosynthetics?
Q5. What are the advantages and disadvantages of using geogrid for soil reinforcement in
comparison to steel strips for reinforced soil earth walls?
Q6. it is observed that a 15m deep tube well that was supplying drinking water for several
years has started giving water with high nitrate content. What steps should be taken to
identify the source of contamination?
SECTION-C
Q7. What are main functions of geotextiles? Explain with neat sketches.
Q8. Compute the pullout capacity of a unit width of a geotextile sheet of length 3m buried in
a horizontal position at a depth of 5m in sand having ? = 18kN/m
3
, c = 0, ? = 30?.For
soil-geotextile take ? = 0.75 ??
Q9. Liquid waste is being discharged in to a shallow injection well. The subsoil consists of
medium sand of 15m thick with k = 2 ? 10
?4
m/sec and a porosity of 35% underlain by
bed rock. The ground water table is located 5m below the ground surface and hydraulic
gradient causing ground water flow is 0.007. A drinking water tube well is located 2.0km
away from the injection well on the downstream side. Once the liquid waste percolates
vertically down to the ground water table, how much time it will take for the liquid waste
to reach the drinking water tube well.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 21 March 2020