c) For the following rock core, compute the recovery ratio and rock quality designation (RQD):140 cmB45Piece No.Length, cm6712 30 0 74 5 6 7 804 12 3139109 100 4 21111121213 144.5 8 513

A rock core data is as followsPiece noLength(cm)10203740546127381390104112124.5138145calculate…

c) For the following rock core, compute the recovery ratio and rock quality designation (RQD): Piece No. Length, cm 1 0 7 23 07 140 cm B 4 5 6 0 4 12 7 3 8 9 13 0 10 4 10 11 12 11 12 13 14 2 4.5 8 5 13

c) For the following rock core, compute the recovery ratio and rock quality designation (RQD): Piece No. Length, cm 1 0 7 23 07 140 cm B 4 5 6 0 4 12 7 3 8 9 13 0 10 4 10 11 12 11 12 13 14 2 4.5 8 5 13

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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Concept explainers

Crack Detection

Concrete materials are meant for supporting structures, building foundations and they act as several load-bearing structures. Over time, due to environmental conditions, and based on the constituent materials used, concrete materials are subjected to a great degree of distress. Corrosion of the reinforcement bars due to chemical influences, uneven base, earthquake, drying shrinkages, and alkali-aggregate reactions are some of the reasons for concrete distress.

Question

c) For the following rock core, compute the recovery ratio and rock quality designation (RQD):
140 cm
B
4
5
Piece No.
Length, cm
6
7
1
2 3
0 0 7
4 5 6 7 8
04 12 3
13
9
10
9 10
0 4 2
11
11
12
12
13 14
4.5 8 5
13

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