My research interests include Pile foundation, Soil Arching, Reinforced Earth Structures and Liquefaction Potential evaluation. Being an engineer and a researcher, I think, it is important to solve existing problems applying innovative while evaluating the practical applicability and feasibility of the proposed solution.
Both laboratory model and cast in-situ pile load tests have been carried out to study the effect of compressive load on uplift capacity of piles and pile groups. Scaled Model reinforced concrete footings (1:3) have been fabricated to study the depth of embedment on pull out capacity. The footings have been instrumented to understand the load transfer behavior. The study focuses on nonlinear stress-strain behavior of soil and load-deformation behavior of piles and footings under uplift and compressive loads.
In India, the cities and towns in Indo-Gangetic plains are within a distance of 300 km from the identified seismic gaps in the great Himalayan ruptures which has high potential for future earthquakes. With large overburden of alluvial deposits in these areas, it becomes necessary to study the liquefaction. It includes development of a model for dynamic deformation characteristics of soils from north India considering soil strain.
The increase in construction material and the scarcity of raw material initiated the researchers and planners working to find waste material or substitute material which are environmentally friendly and economically sustainable. The static and dynamic properties of stabilized soil by using waste materials and its application to problems like road pavement and railway embankment have attracted wide attention throughout the world by researchers.
Fiber Reinforced Polymer is a composite material consisting primarily of two materials, fibers and a resin matrix. FRP has the advantages such as (i) High resistance to fatigue and corrosion degradation, (ii)High strength or stiffness to weight ratio. Weight savings are significant ranging from 25- 45% of the weight of conventional metallic designs. Fiber composites have been a viable option in replacing traditional pile and footing materials such as concrete, steel and timber in harsh environmental conditions such as exposure to water, chemicals etc.
Development of Models and Design Methodology for Railway Formation with and without Geosynthetics (eg. Geogrid/ Geocell) for axle load for 25 ton and 32.5t (up to speed of 100 kmph) and for passenger trains up to speed of 160 kmph will make better performance of track with increased standard of safety and reduced construction as well as maintenance cost. It also reduces the requirement of land excavation and hence will have positive impact on the environment.
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