Foundation Engineering – MCQ 1. Which of the following is not the objectives of a foundation? a) To increase the stability of the structure.b) To increase the possibility of sliding of the structure.c) To increase the stability against overturning.d) All of these. 2. A foundation is to be called shallow when a) Depth > widthb)…
Relationship Between the SPT values with Angle of shearing resistance, Compactness and Relative Density The relationship between the standard penetration test(SPT or N) values with Angle of shearing resistance(ɸ), compactness and relative Density are as follows: SPT Values (N) Compactness Relative Density Angle of shearing resistance(ɸ) 0 – 4 Very loose 0 – 15 <28°…
Penetration Tests and Soil Sample Exploration – MCQ 1. The SPT-N value is the no.of blows required to drive the sampler through the last a) 15 cmb) 30 cm ✅c) 45 cmd) 50 cm 2. The type of sampler used in standard penetration test is a) Shelby tube samplerb) Piston Samplerc) Split Spoon Sampler ✅d)…
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Swedish Circle Method Swedish circle method for analyzing the slope stability: This method was first introduced by Fellenius (1926) for analysis of slope stability of C-φ soil. In this method, the soil mass above the assumed slip circle is divided into a number of vertical slices of equal width. The forces between the slices are…
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9 Assumptions of Coulomb’s Wedge Theory Following are the 9 assumptions of coulomb’s wedge theory or coulomb’s wedge failure theory 1. The backfill is dry and cohesionless. 2. The backfill is also homogenous and isotropic. 3. The backfill surface is a plane surface and can be inclined. 4 The back of the wall is vertical…
Earth Pressure Theories – MCQ 1. Depth of tensile zone near the surface of a cohesive fill is – a) b) c) ✅ d) 2. A verticle cut in clay soil with unit weight of 19 KN/m3 failed when the depth of cut was 4.8 m. What is the cohesive strength of clay? a) 22…
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Difference Between Open Caissons and Pneumatic Caissons Difference between well or open caissons and pneumatic caissons are as follows: 1. Structure ➤ Open caissons are box-type structures having their top and bottom open. ➤ Pneumatic caisson consists of an enclosure open at the bottom and closed at the top. 2. Cost ➤ Open caissons are…
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