Time : 3 Hours Maximum Marks: 80Min. Passing Marks :.26

Instructions to Candidates :

Attempt any tive questions, selecting one question from each unit. All questionscarry equal marks. (Schematic diagrams must be shown wherever necessary.Arry data you feel missing suitably be assumed and stated clearly. Units ofquantities used/calculated must be stated clearly.

'Unit-I

Explain the intact rocks classifications and Deere's rocks quality classificationsystem.

Write in detail about RSR and RMR classifications.

OR

1. Explain the Q-system of rock classification. What is inter-relation between Q andRMR. (16)

Unit - II

1. a)

b)

(8)

(8)

(8)

(8)

(16)

2.

2.

a) Define: Porosity, durability, sheer strength and deformability.

b) Explain direct sheer and punch sheer test.

.oRExplain triaxial sheer test in detail with fig.

' Unit- ilI3. Explain flack facts testandplate load test. (16)

OR

3. Explain point roughness co-efficient, scale eff'ects, orientation of points, fiointintensity. (16)

IContd....

B.Tech. IV Semester (Main/Back) Examination, June-July - 2015

Civil Engineering

4CE6.l Elective Rock Mechanics

t-l(t)

NF]t+

4E2031 hors (1)

I

Urit-WErdainRaownurdry str€mgtli oriteriarn.anO matlafe methodotogy.

OR

Ytrrite-about ptr*olic cargdi eriterim indetail

Ifuit-YDiscuss groutiang mBt€rials a,rd.methods of grouting.

OR

Write. abor$ m€fhods ofbearing cryeity of rocks.

(r5I

.(16)

(r6)

(I6)

ffir' ta