Site Investigation before construction is essential to determine
- AThe bearing capacity of the soil.
- BThe groundwater table level.
- CThe presence of any underground utilities or obstructions.
- DAll of the above.Correct
Solution
Concept
Site Investigation Purposes
Formula
N/A
Step-by-step solution
1. Understand the objectives of conducting a site investigation before construction. 2. Recognize that bearing capacity, groundwater table level, and underground obstacles are all evaluated during site investigation. 3. Select Option (D) as all the given options are correct.
Explanation
Site investigation is conducted before construction to gather all critical subsurface information required for safe foundation design and project execution. It helps determine the load-bearing capacity of the soil, locates the groundwater table to manage potential flooding or foundation issues, and identifies existing underground utilities or obstacles to prevent damage and hazards during excavation. Therefore, all the given points are essential reasons for conducting a site investigation.
Shortcut
To remember the primary goals of a Site Investigation, use the mnemonic "BUG": - Bearing capacity of the soil - Utilities/obstructions underground - Groundwater table level
Common mistake
A common mistake is selecting option A immediately upon reading it because bearing capacity is the most recognized objective of a geotechnical investigation, leading students to stop reading further and miss option D ("All of the above"), which covers all critical aspects of site investigation.
Correct answer: D) All of the above.