Question

Selection of excavation method depends on __________

(a) Type of rocks

(b) Nature of rocks and ground

(c) Texture of rocks and ground

(d) Weather conditions of the place

The question was asked in exam.

This is a very interesting question from Geological Investigations topic in section Tunnels of Engineering Geology

Answer 1

Correct answer is (b) Nature of rocks and ground

Easy explanation: Choice of the right method will, therefore, be possible only when the nature of the rocks and the ground all along the alignment is fully known. This is one of the most important aim and objects of geological investigations.