Senior Geotechnical Engineer Interview Questions and Answers

IS code for heavy compaction test is IS 2720 (Part 8) and for California bearing ratio test is IS 2720 (Part 16).

• IS 2720 (Part 8) covers the standard procedure for heavy compaction test.

• IS 2720 (Part 16) specifies the method for California bearing ratio test.

• Both tests are important in geotechnical engineering for evaluating soil properties.

• IS 2720 (Part 8) - Standard procedure for heavy compaction test.

• IS 2720 (Part 16) - Method for California bearing ratio test.

Liquefaction occurs in loose, saturated, cohesionless soils during earthquakes.

• Occurs in loose, saturated, cohesionless soils

• Caused by seismic activity

• Results in loss of strength and stiffness

• Common in sandy soils

• Can lead to ground failure and structural damage

Suitability of ground improvement methods and stone column design depends on the strata.

• Different ground improvement methods are suitable for different types of soil and rock strata.

• Factors such as soil type, depth, and load requirements must be considered when selecting a ground improvement method.

• Stone columns are a popular ground improvement method for soft soils and can be designed using various methods such as empirical, analytical, and numerical.

• The design of stone colu...read more

Pile foundations are deep foundations that transfer loads to deeper, more competent soil or rock strata, while shallow foundations transfer loads to the near-surface soils.

• Pile foundations are used when the soil at shallow depths is not capable of supporting the structure's load.

• Shallow foundations are typically used for smaller structures with light loads and where the soil is strong enough to support the load.

• Pile foundations can be classified as end-bearing piles, friction...read more