Site investigation for ground models: Interpretation and mapping I Flashcards
1
Q
What’s good about rock tests?
A
They are quick and cheap
2
Q
What type of rock strength tests are there?
A
- Brazilian tensile test
- Point Load Test
- Unconfined Compression Test
3
Q
What is a benefit for point load tests?
A
Can be conducted on cylindrical, rectangular or even irregular specimens
4
Q
How do you find the uncorrected point load strength index?
A
Is_50 = P/De^2
5
Q
What does De for the point load test stand for?
A
The equivalent core diameter
6
Q
What are some imperfections in rocks?
A
- Seams
- Laminations
- Inclusions
- Weathered zone
7
Q
What’s one of the most common ways to describe the strength of a material?
A
List its UCS
8
Q
How is the UCS obtained?
A
From tests on individual samples
9
Q
What do UCS provide?
A
They provide a measure of the
rock strength at a location and
depth.
10
Q
What is foliation?
A
Foliation in geology refers to repetitive layering in metamorphic rocks.
11
Q
What affects the strength of the rock?
A
- Foliation
- Cleavage
- Jointing (spacing, orientation)
- Bedding planes
- Weathering
