SOIL MECH T1.1

Question 1

is defifined as the uncemented aggregate of mineral grains and decayed organic matter (solid particles) with liquid and gas in the empty spaces between the solid particles.

Answer 1

soil

Question 2

is the branch of science that deals with the study of the physical properties of soil and the behavior of soil masses subjected to various types of forces.

Answer 2

soil mechanics

Question 3

is the application of the principles of soil mechanics to practical problems.

Answer 3

soils engineering

Question 4

is the subdiscipline of civil engineering that involves natural materials found close to the surface of the earth.

Answer 4

geotechnical engineering

Question 5

the understanding of geotechnical engineering as it is known today began early in

Answer 5

18th century

Question 6

as of 2008, how many pyramids have been discovered in egypt

Answer 6

138

Question 7

One of the most famous examples of problems related to soil-bearing capacity in the construction of structures prior to the 18th century

Answer 7

leaning tower of pisa in italy

Question 8

4 major periods

Answer 8

1. Preclassical (1700 to 1776 a.d.)
2. Classical soil mechanics—Phase I (1776 to 1856 a.d.)
3. Classical soil mechanics—Phase II (1856 to 1910 a.d.)
4. Modern soil mechanics (1910 to 1927 a.d.)

Question 9

This period concentrated on studies relating to natural slope and unit weights of various types of soils, as well as the semiempirical earth pressure theories.

Answer 9

Preclassical Period 1700-1776

Question 10

natural slope

Answer 10

angle of repose

Question 11

the natural slope of clean dry sand and ordinary earth were

Answer 11

31* and 45*

Question 12

the unit weight of clean dry sand and ordinary earth were recommended to be

Answer 12

18.1kn/m3 (115 lb/ft3) and 13.4kn/m3 (85 lb/ft3)

Question 13

During this period, most of the developments in the area of geotechnical engineering came from engineers and scientists in France.

Answer 13

Classical soil mechanics -phase 1 (1776-1856)

Question 14

practically all theoretical considerations used in calculating lateral earth pressure on retaining walls were based on an arbitrarily based failure surface in soil.

Answer 14

Preclassical period (1700-1776)

Question 15

used the principles of calculus for maxima and minima to determine the true position of the sliding surface in soil behind a retaining wall.

Answer 15

Charles Augustin Coulomb

Question 16

was also the first to use the symbol o for soil friction angle.

Answer 16

Poncelet

Question 17

defined the term coefficient of permeability (or hydraulic conductivity) of soil

Answer 17

Henri Philibert Gaspard Darcy

Question 18

defined clay-size fractions as the percentage by weight of particles smaller than 2 microns in size.

Answer 18

Albert Mauritz Atterberg

Question 19

developed the theory of consolidation for clays

Answer 19

Karl Terzaghi

Question 20

is known as the father of modern soil mechanics

Answer 20

Karl Terzaghi

Question 21

Terzaghi was born on

Answer 21

October 2, 1883 in Prague

Question 22

Known as ‘the godfather of soil mechanics’

Answer 22

Ralph B. Peck