1. Undisturbed samples are to be taken for the following test: a- Specific gravity b- Sieve analysis c- Consolidation d- Plasticity indices II. To avoid the disturbance of sensitive soft soil, the area ratio should be: a- 14% b- ≤ 10% c- ≥ 10% d- 20% III. Open test pit is suitable up to a depth of: a- 5 m b- 6 m c- 2 m d- 3m IV. Shellby tube is of the most widely used device for: a- Drilling rock and cobbles b- Measuring effective stress c- Wash boring d- Collecting undisturbed soil samples V. If you have a 4-story heavy concrete building, the depth of boring estimated to be: a- = 16 m b- 12 m c- 8 m d- 20 m

1. Undisturbed samples are to be taken for the following test: a- Specific gravity b- Sieve analysis c- Consolidation d- Plasticity indices II. To avoid the disturbance of sensitive soft soil, the area ratio should be: a- 14% b- ≤ 10% c- ≥ 10% d- 20% III. Open test pit is suitable up to a depth of: a- 5 m b- 6 m c- 2 m d- 3m IV. Shellby tube is of the most widely used device for: a- Drilling rock and cobbles b- Measuring effective stress c- Wash boring d- Collecting undisturbed soil samples V. If you have a 4-story heavy concrete building, the depth of boring estimated to be: a- = 16 m b- 12 m c- 8 m d- 20 m

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter5: Soil Improvement And Ground Modification

Section: Chapter Questions

Problem 5.12P

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Concept explainers

Soil Compaction Test

Soil compaction is the major area of geotechnical engineering. Soil is composed of multiple pores present on its surface, while the soil is mainly composed of gravel, sand, rocks, etc. The arrangement of these rocks and gravels is such that they build up voids (spaces) between them, which allows spaces for the roots of the plants and crops to spread and absorb the required amount of nutrients. Soil compaction is a major problem primarily caused by human activities, micro-organisms, and other multiple factors.

Question

Please solve all points

1. Undisturbed samples are to be taken for the following test:
a- Specific gravity
b- Sieve analysis
c- Consolidation
d- Plasticity indices
II. To avoid the disturbance of sensitive soft soil, the area ratio should be:
a- 14%
b- ≤ 10%
c- ≥ 10%
d- 20%
III. Open test pit is suitable up to a depth of:
a- 5 m
b- 6 m
c- 2 m
d- 3m
IV. Shellby tube is of the most widely used device for:
a- Drilling rock and cobbles
b- Measuring effective stress
c- Wash boring
d- Collecting undisturbed soil samples
V. If you have a 4-story heavy concrete building, the depth of boring estimated to be:
a-
16 m
b- 12 m
c- 8 m
d- 20 m

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