Hasan M Rangwala

Nirma University | NU · Institute of Technology

India requires a large landfill area for the disposal of construction and demolition waste (C&DW) generated during maintenance, renovation, or destruction of different structures. India produces millions of tonnes of C&DW and the capacity for recycling is less than 2 percent. As a result, India must establish a strategy for reducing, reusing, and r...

Soil is a base of structure, which supports the structure from beneath and distributes the load effectively. If the stability of the soil is not adequate, then failure of structure occurs in form of settlement, cracks, etc. Which can be prevented by soil reinforcement which is introduced in the field of geotechnical engineering by improving propert...

This chapter presents a state-of-art review of two important problems in geotechnical earthquake engineering. Seismic analysis and design of (i) Retaining Walls and (ii) Shallow Foundations. Different methods available, their merits and demerits have been discussed critically. Finally recommendations have been made for the design of retaining walls...

Analysis and design of machine foundations is very important area of research and has always been a topic of special attention in foundation engineering. The design of machine foundation majorly depends on the dynamic properties of soils. Investing dynamics properties is therefore very sensitive and challenging task. This demads complex mathematica...

One of the key parameters for the performance of a pavement is uniformity of its sub-grade. In situ assessment for the uniformity of the sub-grade is commonly carried out by measuring the density of soil mass. Measurement of the density is done by cutting a core from the soil mass. According to ASTM D6951-09 (2009) the soil density may be estimated...

The main objective of the paper is to develop a simplified procedure for the seismic design of a rigid retaining wall. For the design of a rigid retaining wall various parameters that are taken in to consideration include height of the wall, angle of inclination of backfill, backface angle of the wall, surcharge on backfill, safe bearing pressure o...

Seismic excitation or an increase in the seismic acceleration in the soil mass leads to a reduction in the bearing capacity of the footing. This reduced bearing capacity is termed as the seismic bearing capacity of the footing. In the first part of the present research work, an analytical approach for determination of the seismic bearing capacity...

In this paper a parametric study has been carried out considering different variables, within an adequate range, to evaluate the vibration characteristics of the soil-foundation system subjected to dynamic loads in horizontal and vertical directions. Influence of length, spacing between piles, number of piles in a group and their orientations on na...

In this paper a parametric study has been carried out, considering different variables within an adequate range, to evaluate the response of a soil-foundation system subjected to dynamic loads in horizontal and vertical directions. Influence of length, spacing between piles, number of piles in a group and their orientations on the displacement ampl...

In this paper, an attempt has been made to obtain dynamic increment and dynamic decrement of earth pressure in yielding gravity walls located in seismic regions having partially submerged cohesionless backfill in active and passive cases respectively. Inclined backface wall with inclined backfill having uniformly distributed surcharge has been cons...

Design of foundations to withstand seismic loads has received considerable attention in recent years. Seismic loading significantly reduces bearing capacity of foundations due to induced stresses. This effect has not been considered in the design standards adequately. In this paper, an analysis has been developed for a dry c-ø soil, considering the...

In this paper, seismic bearing capacity of strip footing has been investigated theoretically. The analysis has been developed for a dry c-φ soil, considering the effect of the vertical and horizontal coefficients of seismic acceleration. Seismic accelerations are considered both on the foundation and within the soil mass beneath the foundation. The...