A core sample of granite was drilled at 1.5 m length at Muar. Based on the rock core sample as shown in Figure Q3(a), determine the Total Core Recovery (TCR), Solid Core Recovery (SCR) and Rock Quality Designation (RQD).

A core sample of granite was drilled at 1.5 m length at Muar. Based on the rock core sample as shown in Figure Q3(a), determine the Total Core Recovery (TCR), Solid Core Recovery (SCR) and Rock Quality Designation (RQD).

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter17: Subsoil Exploration

Section: Chapter Questions

Problem 17.15P

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(a) A core sample of granite was drilled at 1.5 m length at Muar. Based on the rock core
sample as shown in Figure Q3(a), determine the Total Core Recovery (TCR), Solid
Core Recovery (SCR) and Rock Quality Designation (RQD).

176 mm
11 mm 42 mm
180 mm
57 mm 78 mm
91 mm
69 mm
170 mm
Figure Q3(a): Rock core of boring exploration

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