Geotechnical Engineering Laboratory

 

Faculty-In-Charge
Dr A. Murali Krishna
amurali@iitg.ernet.in

Tel: +91-361 258-2429 (O)
                  258-4429 (R)

Fax: +91-361-258 2440

Geotechnical engineering specialization was started under civil engineering department in 2005. Since its inception, all the faculties, students, research scholars and associated lab staff have actively contributed to its development. The laboratory is equipped to perform all the necessary basic characterization of soils, rocks and geosynthetics along with several advanced testing facilities. The vision of this division is to utilize the state-of-the art knowledge for solving problems related to subsurface.

The subsurface which includes soils and rocks is the ultimate load bearing stratum. Geotechnical engineering is the branch of civil engineering that deals with the engineering behavior of subsurface or earth materials. It includes (a) soil mechanics, which is essential to identify, characterize and study the mechanics of soil/rock and (b) applied soil mechanics, which transfers the behavioral knowledge to practice. This includes investigating existing subsurface conditions and materials; determining their engineering behavior that are relevant to the project considered, assessing risks posed by site conditions; designing earthworks and foundations.

A typical geotechnical engineering laboratory helps in identifying the engineering behavior of geomaterials (soils and rocks) and byproducts such as fly ash etc. There are different physical, chemical and geotechnical properties determined in the laboratory that is required for identifying the geomaterials. This information is used by geotechnical engineer for designing the type of foundations, earthworks such as dams, embankments, tunnels, reservoirs, pavement subgrades, and specialized applications like waste containment systems. The preciseness of such design is entirely based on the experimental information obtained from a geotechnical laboratory. Therefore, geotechnical engineering laboratory has a great role to play in rendering the subsurface a safe and stable load bearing medium.

 

 

 

 

Various Laboratory equipment for Soils

  • Physical characterization
  • Compressibility and Swelling tests
  • Compaction
  • Flow parameters characterization
  • Strength characterization

Geosynthetics testing

Rock Testing

Advanced Instrumentations

Cyclic Triaxial Testing system

Multi Channnel Analysis of Surface Waves (MASW) Testing

Cross-hole testing

Down-hole testing

 

Block Vibration Test Setup

 

Soil Chemistry Analyzer

 

Stress-path Controlled Triaxial Test Setup

 

Ion Chromatograph

 

Geotextile Testing Apparatus

 

Apparatus for Unsaturated Soil Characterization

 

Volumetric Water Content Sensors

 

Apparatus for Analyzing Thermal Property of Soils

 

Automated Data Acquisition Systems

Model Testing Facilities

Foundation model testing for Bearing Capacity

(through loading frame)

Retaining wall model testing

Physical Characterization

 

 

 

Apparatus to estimate Specific Surface Area

 

Apparatus to carry out EGME investigation

 

Dessicating Apparatus


Permeability Characterization

 

Guelph Permeameter (Field Setup)

 


Compressibility and Swelling Characterization

 

 

 

 

Strength Characterization

 

Ordinary Triaxial Apparatus

 

Direct Shear Test Apparatus

  • Apparatus for testing conventional sample sizes
  • Apparatus for testing big sample sizes

 

Unconfined Compression Strength (UCS) Test Apparatus

 

Vane Shear Test Apparatus

Rock Testing

 

Compression Testing Apparatus for Testing Strength of Rocks

 

Brazilian Test Apparatus for Testing Tensile Strength of Rocks

 

Point Load Test Apparatus for Index Classification of Rocks


Software

Plaxis 2D

Plaxis 3D

Geostudio 2007

FLAC 2D

FLAC 3D

 

SurfSeis

Soil Vision Professional V4X

COMSOL   

SHAKE 2000

AnsYs

Abaqus

   

Research

Major research area includes:

  • Soil characterization
  • Shallow and Deep foundations
  • Reinforced soil structures
  • Seismic stability of slopes and retaining walls
  • Design of offshore foundations
  • Field instrumentation and testing
  • Ground improvement techniques
  • Geo-environmental engineering
  • Soil dynamics
  • Seismic hazards of Urban Centers
  • Analysis and design of machine foundations
  • Engineering seismology
  • Seismic soil-structure interaction
  • Landslides

People

Faculty

Baleshwar Singh (Professor)

Research Interests:

Marine geotechnology

Soil stabilization

Modelling of deep foundations

Pavement subgrade, characterization and modification

 

Sreedeep S. (Associate Professor)

Research Interests:

Behavioral Studies on Unsaturated Porous Media Characterization of Geomaterials (soils and rocks) Thermal Characteristics of Geomaterials Contaminant Transport and Retention Studies

Waste Containment Studies

Utilization of Wastes

 

 A. Murali Krishna (Associate Professor)

Research Interests:

Earthquake Geotechnics

Reinforced soil retaining structures

Geosynthetics and Ground improvement,

 Site Investigation,

New Geomaterials

Numerical and Physical Modeling

Rock and Underground structures

Landslides


Anil Kumar Mishra (Assistant Professor)

Research Interests:

Effect of contaminants on bentonite

Swelling-Shrinkage behaviour of clay

On the use of fly ash as a liner material at waste disposal site
Unsaturated soil mechanics

Arindam Dey (Assistant Professor)

Research Interests:

Geosynthetic engineering applications in pavement and railway geotechnics

Optimization and soft computing in geotechnical engineering,

Seismic health monitoring using active and ambient vibrations,

Numerical modeling in geotechnical engineering, Stability of ash dykes and embankments

Landslides and slope stability analysis
Reliability and uncertainty analysis in geotechnical engineering

Subsurface profiling and soil investigation
Soil dynamics and earthquake engineering

 

T. V. Bharat (Assistant Professor)

Research Interests:

Engineering behavior of clays,

Design of landfill liners,

Mechanics of unsaturated soils

Settlement behavior of slurried mineral wastes

Inverse analysis of geotechnical & geoenvironmental engineering problems

Abhishek Kumar (Assistant Professor)
Research Interests:

Seismic hazards of Urban Centers

Ground Motion Simulations

Liquefaction

Seismic hazard for Nuclear Power Plants

Site response studies for deep basins

Multichannel Analysis of Surface Waves (MASW) and Ground Penetration Radar (GPR)

Subsoil Investigations and Geotechnical Engineering

Soil Dynamics

Dynamic testing’s on Piles

Ground Improvement, Reinforced earth structures

Deep Excavations

Staff                         

Jonali Saikia

(Scientific Officer)

Hariram Upadhyay

(Senior Technician)

 

RESEARCH SCHOLARS

 

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