JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV ROCK SLOPE TECHNOLOGY Previous Question Paper (January/February - 2023 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
What do you mean by geological investigation?
Answer
Geological investigation is the systematic study and collection of data regarding the physical, structural, and mechanical properties of rock masses and soil at a site to assess their suitability and stability for engineering projects.
How do you determine the stability of a slope?
Answer
Slope stability is determined by calculating the Factor of Safety (FoS), which is the ratio of resisting forces (shear strength of the material) to driving forces (gravity, pore pressure, and external loads). If the FoS is greater than 1, the slope is considered stable; if less than 1, it is unstable.
Define the term Base Failure.
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Define the term Toppling.
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How does ground water affect slope failure?
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Define the term Depressurization.
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What is slope monitoring system?
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Why slope monitoring is important?
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Define term FEM.
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Define Discontinuum approach for slope stability analysis.
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Part B
What are the most common types of slope processes?
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Which geological parameters are used for the site reconnaissance and planning an investigation program to collect detailed design data for the rock cuts?
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Define the term Slope and Slope stability. List the different modes of slope failure.
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Explain economic risk evaluation approach for pit slope optimization.
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Give the general conditions for plane failure in a rock slope.
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State the mechanism of failure of jointed rock mass.
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Describe the basic mechanism of Rotational shear slope failure.
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Describe the basic mechanism of Wedge slope failure.
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Discuss on the landslide likely caused by a combination of factors groundwater fluid pressures.
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Explain the Open Pit Slope Depressurization using Horizontal Drains.
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With neat sketches describe the protective measures and effect of ground water in slope.
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State the remedial measures for slope stabilization.
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Describe Conventional slope Monitoring system by EDM and Total station.
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Briefly explain the following instruments for Movements and deformation i) inclinometers ii) vibrating wire piezometers.
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Explain the purpose of investigations of failed slopes.
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Describe the movement and surveying Radar for slope stability.
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Explain types of Numerical Modeling.
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Distinguish between Continuum-discontinuum models for slope analysis approach?
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What are the main steps that may be followed in the numerical modeling of a system?
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For a clay slope of height 20 m, the stability number is 0.05, γ = 25 kN/m3, and c = 30 kN/m2, Calculate the critical height of slope?
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