1. WELCOME

2. BEARING CAPACITY OF SOIL
Presentation By :Hardeep G Kotian
2nd year
Civil Engineering
K.P.T

3. Bearing Capacity of Soil
Bearing capacity of the soil is its ability to support the load coming over its unit area without excessive settlement and displacement.

4. Ultimate Bearing Capacity Of Soil
The minimum load on unit area ,causing failure, is called the Ultimate bearing capacity of Soil.

5. Safe Bearing Capacity Of Soil (SBC)
The value of the permissible loads taken for the purpose of design is known as Safe Bearing Capacity.

6. Determination Of Safe Bearing Capacity Of Soils
Plate load Test
Dropping weight or Penetration test method
Method of loading
Presumptive values of bearing capacity of soils

7. Plate Load Test Method

8. Definition:This is a field test for determining the ultimate bearing capacity of soil. The test consists of loading a steel plate placed at the foundation level and recording the settlements corresponding to each load increment.

9. Procedure Of Plate Load Test
A pit is dug at site up to the depth at which the foundation is proposed to be laid.
The load is applied to the test plate through a centrally placed column. The loading to the test plate is applied with the help of a hydraulic jack. The load to the plate is given with the help of sand bags, stones or concrete bags.

10. 3 . The load is applied in convenient increments say of about one-fifth of the expected safe bearing capacity. The settlement of plate is recorded by means of dial gauge. The load is directly recorded from the pressure gauge of the hydraulic jacks. The observations are plotted on a graph. At the points where graph sharply takes a turn is the ultimate bearing capacity.

11. SPT Test

12. Methods Of Improving The SBC
Compacting the soil
Increasing the depth of foundation
Increasing the width of foundation
Drainage of soil
Sheet piling
Grouting
Replacing the poor soil
Chemical
By using Geo-textiles

13. THANK YOU