Stabilization of Subgrade Soils using Ground Improvement Techniques Essential prerequisite for High Speed corridor is to have control on the degradation of track geometry so as to keep various tolerances well within the specified limits. Degradation of track geometry is ...
Geotechnical Engineering
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Different Types of Machine Foundations and their Uses
Machine foundations are special types of foundations required for machines, machine tools and heavy equipments which have wide range of speeds, loads and operating conditions. These foundations are designed considering the shocks and vibrations (dynamic forces) resulting from operation of ...
Integrity Testing of Concrete Piles for Proper Functioning
Integration testing of concrete piles are conducted for proper functioning of pile foundations. This test is carried out before construction of pile caps.
DESIGN ISSUES IN PILE FOUNDATIONS
Pile foundations are one of the type of deep foundation. These foundations transfer load deeper to the hard strata much below the ground surface. But there are certain issues in the design of pile foundations related to selection of type ...
Soil Tests Required for Deep Foundations
Soil tests required for deep foundation to ensure the bearing capacity of the soil to support the loads from deep foundation. Types of soil tests for deep foundations are discussed.
Pressure Bulb or Stress Isobar Concept
Stress Isobar or Pressure Bulb Concept An isobar or pressure bulb is a stress contour or a line which connects all points below the ground surface at which the vertical pressure is the same. In fact, an isobar is a ...
CAUSES OF FAILURE OF GROUND SLOPES
An exposed ground surface that stands at an angle with the horizontal is called slope. Slopes are required in the construction of highway and railway embankments, earth dams, levees and canals. These are constructed by sloping the lateral faces of ...
Compaction and Roller Requirement for Embankment and Subgrade
Compaction of soils required for different types materials for embankment and subgrade are shown here based on IS:2720 – part-8. Following table shows the relative compaction for different soil types: Sl. No. Type of work / material Relative compaction as ...