Civil Engineering (CiE): Recent submissions
Now showing items 1-20 of 425
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Probabilistic site characterization and reliability analysis of shallow foundations and slopes
Uncertainty is pervasive in almost every field of engineering, and geotechnical engineering is no exception. Natural soils are heterogeneous and anisotropic in physical properties due to their composition and complex ... -
Vibration of cables under determministic and randon excitations.
Conclusions i) A new method of linear analysis has been developed to handle the non planar free vibration behaviour of cables in the presence of a spatially non uniform lateral load. ii) If the lateral load, even though ... -
Effect of reinforcement parameters on the mechanical behaviour of geosynthetic reinforced sand
Soil possesses very high strength in compression, but virtually no strength in tension. Hence, when used as a construction material in civil engineering applications, soil usually fails in shear. Soil can be reinforced ... -
Bentonite-Kaolinite-sand mixtures as backfill material for nuclear fuel waste disposal vault.
The aim of the present investigation is to find a suitable backfill material to be used in a nuclear fuel waste–disposal vault. The requirements for such backfill material with regard to various characteristics-such as ... -
Ultimate strength and behaviour of reinforced concrete T-beams under combined bending and torsion, Ph.D. Thesis
Summary and Conclusions The various conclusions arrived at in this study are summarized as follows: 1. Equilibrium Method The equilibrium method used in this investigation for the analysis of T beams under combined bending ... -
Stability of slopes and passive earth structures in partially saturated soils by the method of characteristics.
Stability analysis of slopes and passive earth pressures are problems of considerable economic importance and technical interest in geotechnical engineering. Efforts have continuously been made to improve the methods of ... -
Performance analysis and improvent of submersible pumps
The prediction of performance and efficiency of turbomachines based on test results with geometrically similar physical models using scale effect formulae has been done for the past several decades. Now, with the introduction ... -
In-Situ testing of soils and pavement systems using spectralanalysis of surface waves(SASW)
The determination of shear wave velocity profile with depth for any ground or pavement site is essential for: (i) performing earthquake resistant analysis, (ii) carrying out soil liquefaction studies, and (iii) assessing ... -
Some studies on volume change and strength behaviour of soils as affected by environmental factors
The present investigation is an attempt to understand clay–organic pore fluid interactions, to check in the first place whether highly ligative organic molecules result in clay behaviours similar to those produced by weakly ... -
Axisymmetric problems on capacity and passive earth pressures in soils with bilinear ground surface by the method of characteristics.
Shallow footings are placed on different types of soil under different site conditions. A shallow footing placed in a depression with stratified soil is a good example of a practical problem. For a realistic analysis of ... -
Prediction of rainfall state using a hidden state Markov model
ainfall prediction is a challenging problem because of the various uncertainties involved in rainfall processes. Nevertheless, long-term prediction of rainfall state is of great significance for the planning and management ... -
Quantification of uncertainties in urban precipitation extremes
Urbanization alters the hydrologic response of a catchment, resulting in increased runoff rates and volumes, and loss of infiltration and base flow. In general, quick runoff response to precipitation extremes due to short ... -
Analytical and numerical modelling of complex multiphase flow processes in geological environments
Most geological flow and transport models describe the flow and convective-dispersive spreading of one or more components entirely dissolved in the most common geological fluid, water. However, many other processes—such ... -
Two Dimensional Numerical Modelling Of Variably Saturated Flows ?
The prediction of moisture and contaminant transport through unsaturated soil to groundwater is becoming increasingly important in the fields of hydrology, agriculture, and environmental engineering. Computer-aided simulation ... -
Study of the rainfall-runoff models using regression and optimization techniques
Various models representing the rainfall-runoff relationship have been in existence and are also being modified. Some of them incorporate various intermediate processes. The majority of the existing models require continuous ... -
VENTURI STUDIES WITH WATER ON CAVITATIOK INCEPTION CAVITY CHARACTERISTICS AND CAVITATION EROSION BEHIND BLUFF BODIES
Cavitation is defined as the formation, growth and collapse of vapour or gas? and vapour?filled bubbles in a liquid subjected to reduced pressures (of the order of the vapour pressure of the liquid) at constant ambient ... -
Analytical and experimental studies on stratified flows
Stratified flows are the fluid motions caused or influenced by the density differences. The density currents, the intrusion of salt wedge, the gravitational circulation, diffusion and dispersion of pollutants in estuaries ... -
Global response sensitivity and reliability analyses of structural dynamical systems with parameter and excitation uncertainties
This thesis develops computational methods for global response sensitivity analysis (GRSA) and time-variant reliability analysis in structural dynamical systems with parameter and excitation uncertainties. The primary ... -
Studies on simple and restricted orifice surgre tanks
This thesis deals with certain basic experimental studies conducted on the phenomenon of mass oscillations in restricted orifice surge tanks. Simple surge tanks were also studied, they being considered an extreme case of ...