adsence

LATEST UPDATE

MADE EASY SOIL MECHANICS HANDWRITTEN NOTES

MADE EASY SOIL MECHANICS HANDWRITTEN NOTES

 GATE ,PSU , IES  – STUDY MATERIAL FREE DOWNLOAD PDF

ABOUT THE NOTES

  • SUBJECT: SOIL MECHANICS HANDWRITTEN NOTES
  • USEFUL FOR: GATE,IES &PSU OF CIVIL ENGINEERING
  • AUTHORS: SUBJECT ExPERT OF MADE EASY

CONTENT S

  1. PROPERTIES OF SOIL
  2. CLASSIFICATION OF SOIL
  3. EFFECTIVE STRESS
  4. PERMEABILITY AND SEEPAGE
  5. STRESS DISTRIBUTION IN SOIL 
  6. COMPACTION
  7. CONSOLIDATION
  8. SHEAR STRENGTH OF SOIL
  9. EARTH PRESSURE
  10. STABILITY OF SLOPE
  11. SHALLOW FOUNDATION
  12. PILE FOUNDATION
  13. SOIL STABILIZATION AND ExPLORATION

TYPES OF SOIL

1.ALLUVIAL SOIL: Soil deposited from suspension in running water.

2.COLLUVIAL SOIL:  It is formed due to gravitation force in the valley of mountain.
                                         It is also known as Talus.

3.LACUSTRINE SOIL: Soil that deposited from fresh still water(lake).

4.AEOLINE SOIL: Soil that is formed due to transportation by wind.

5.GLACIAL SOIL: Soil form by transportation due to flowing ice

6.LOESS SOIL: It is uniformly graded wind blown silt that is slightly cemented due to calcium compounds and montmorrilonite.

7.GUMBO SOIL:is sticky,highly plastic and dark in colour. Ecessive presence of Montmorrilonite.

8.PEAT SOIL:It is highly organic soil that almost entirely consists of vegetative matter in different stages of decomposition.

10.TUFF SOIL: It is finely graded slightly cemented volcanic ash which may be transported either by water .

11.BENTONITE SOIL: It is chemically weathered volcanic ash that is generally used  a lubricant in drilling.

PROPERTIES OF SOIL:

Soil mass is a three-phase system that comprises of solid,water and air that do not occupy separate spaces but are blended with each other resulting in the formation of complex material properties of which depends upon relative proportion of these constituents.


1.WATER CONTENT/MOISTURE CONTENT/ % MOISTURE:

 Water content is defined as the ratio of weight of water to the weight of solids present in the given soil mass.

   w can assume any value greater than zero.
   * w=0 (for dry soil)
   * water content of fine grained soils is more than that of the coarse grained soils.


2.VOID RATIO(e):

 It is defined as the ratio of volume of voids to the volume of solids present in the given soil mass.


e>0 (there is no upper limit for void ratio)
e not equal 0. (becoz Vv not equal to 0)


3.POROSITY (n) :

Porosity is defined as the ratio of volume of voids to the volume of soil of given mass.

Note:-
porosity & void ratio represents the vol. of voids in terms of vol. of soil and vol. of solids   respectively. Volume of solid is comparatively stable than volume of soil.



4.DEGREE OF SATURATION (S):

 It is defined as the ratio of volume of water to the volume of voids present in the given soil mass.


>Depending upon the degree of saturation the soil may stated as dry, humid, damp, moist, wet and saturated.


5.AIR CONTENT :
 Air content is defined as the ratio of volume of air to the volume of voids present in given in given soil sample.



6.PERCENTAGE AIR VOIDS:

 It is defined as the ratio of volume of air to the volume of present in the given soil mass.








No comments