1. Introduction to Geotechnical Engineering Flashcards
It is defined 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.
Soil
It is used as a construction material in various civil engineering projects, and it supports structural foundations
Soil
It 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.
Soil Mechanics
It is the subdiscipline of civil engineering that includesthe application of the principles of soil mechanics and rock mechanics to thedesign of foundations, retaining structures, and earth structures.
Geotechnical Engineering
Founded soil mechanics. Father of
Soil Mechanics
Karl Terzaghi
His contribution of retaining wall
Charles Augustin de Coulomb
renowned for his ingenious designs of soil testing apparatus and fundamental research on seepage and soil liquefaction.
Arthur Casagrande
What is soil liquefaction
is when a soil is not behaving as soil but water. It is seen on places that is prone to earthquake
What is Seepage
It is where in the dams the waters travel under the dams and go through the other side
His study provided a notable theory on earth pressure and equilibrium of earth masses
William John Macquorn Rankine
The godfather of soil mechanics, he was directly responsible for a succession of celebrated tunneling and earth dam projects that pushed the boundaries of
what was believed to be possible.”
Ralph B. Peck
They are constructed where soil layer at shallow depth (upto 1.5m) is able to support the structural loads.
Shallow foundations
It is a type of foundation which is placed at a greater depth below the ground surface and transfers structure loads to the earth at depth.
Deep foundation
Soil/Ground preparation prior to construction.
EARTHWORKS
These are sections of sheet materials with interlocking edges that are driven into the ground to provide earth retention and excavation support.
Sheet piles
needs to be over the required depth
What does Sheet piles material made off
made of steel, but can also be formed of timber or reinforced concrete
These are relatively rigid walls used for supporting soil laterally so that it can be retained at different levels on the two sides.
Retaining walls
What is the difference between Drilling and Driven
Drilling is they dug a hole using a drill while Driven is when they are hammering a they use a large machine to hammer to pile in
The watertight enclosure from which water is pumped to expose the bed of a body of water in order to permit the construction of a pier or other hydraulic work.
COFFERDAM
What is Cofferdam made of
sheet piles
It is an economical technique used to stabilize existing slopes and to construct retaining walls from the top down.
Soil nailing
Nails the soil in slopes, the nails needs to be over the failing line
A dam is a structure built across a river or stream to hold back water.
EARTH DAMS AND CONCRETE
DAMS
It is the procedure typically defined as using mechanical means to improve/reinforce poor ground conditions.
GROUND IMPROVEMENT
TECHNIQUES
It is when a geotechnical engineer visits your site to acquire and test soil samples. Tests will reveal the characteristics, nature, and reactivity of soil.
SOIL TESTING
