1. During the construction of a simple house, site investigations are usually carried out to obtained detailed geotechnical information which will enable the type of foundation to be design for the proposed project. Discuss the following soil exploration methods which are very relevant in conducting site investigations:
1. Geophysical methods

 2. Seismic surveys
3. Electrical resistivity 

4. Gamma density
5. Dilatometer Tests (DMT


QUESTION TWO
Geotechnical investigation are very important in and the design and construction of foundation in the domain of civil and construction engineering. Discuss in detail the following geotechnical information for a simple building project yet to be constructed: reconnaissance, data and map study, in-depth investigation and laboratory testing:
1. Reconnaissance
2. Data and Map Study 

3. In-depth Investigation 

i. Borehole
ii. Probing
iii. Trial Pits
4. Laboratory Testing
i. Classification Test 

ii. Shear Strength Test