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 – Routine 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 sub-surface features in the proposed construction area.
Information on surface conditions is necessary for planning ...
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