18
Ground Investigation
CHAPTER HIGHLIGHTS
Planning the ground investigation programme – Types of samples – Indirect methods: geophysical methods, sounding methods – Semi-direct methods: wash boring, rotary drilling, auger boring – Direct methods: sampling process, sample disturbance, types of samples, accessible explorations, undisturbed sampling – Routing field tests – Recording of field data – Location, spacing, and depth of borings
18.1 INTRODUCTION
Before undertaking any civil engineering work, a thorough investigation of the ground is essential. Ground investigation refers to the methodology of determining surface and subsurface features in the proposed construction area.
Information on surface conditions is necessary for planning the ...
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