Analysis of Floating House by using ANSYS: Platform Material Comparison of Expanded Polystyrene and Polyvinyl Chloride Pipe
First Order Basis Splines to Perform Isogeometric Topology Optimisation to Design the Outline of Bridge Pier and Analyse using Idea Statica®
Performance Based Seismic Design of Reinforced Concrete Structure using Inelastic Static Pushover Analysis
Cubic Basis Splines to Perform Topology Optimization of Laminated Composite Regular Cylindrical and Elliptical and Hyperbolic Thin Shell Structures using Inverse Buckling Formulation
A Study on Futuristic Intelligent Transportation Systems & Smart Technologies in Urban Areas: A Review
Estimating the Soil Moisture Index using Normalized Difference Vegetation Index (NDVI) And Land Surface Temperature (LST) for Bidar and Kalaburagi District, Karnataka
Roughness Evaluation of Flexible Pavements Using Merlin and Total Station Equipment
Site Suitability Analysis for Solid Waste Dumping in Ranchi City, Jharkhand Using Remote Sensing and GIS Techniques
Unsaturated Seepage Modeling of Lined Canal Using SEEP/W
Strengthening and Rehabilitation of RC Beams with Openings Using CFRP
A Seasonal Autoregressive Model Of Vancouver Bicycle Traffic Using Weather Variables
Prediction of Compressive Strength of Concrete by Data-Driven Models
Design and Analysis of Roller Compacted Concrete Pavements for Low Volume Roads in India
Predicting the 28 Days Compressive Strength of Concrete Using Artificial Neural Network
Measuring Compressive Strength of Puzzolan Concrete by Ultrasonic Pulse Velocity Method
During past earthquakes soil liquefaction has had catastrophic effects including loss of human life and severe damage to many structures all over the globe. This paper presents some results of numerical studies on the performance and effectiveness of different seismic liquefaction countermeasures considered for a waterfront slope within the framework of the NSERC Liquefaction Remediation Initiative (LRI) centrifuge experiments. The performance of several remediation techniques proposed in LRI is studied and discussed. In addition, one more feasible mitigation solution is proposed for waterfront slopes with a performance comparable to that of the measures studied in LRI. Fragility curves are used to represent the effectiveness of different liquefaction remediation techniques at different earthquake intensities. It is shown that the relative effectiveness of various types of liquefaction countermeasures is strongly associated with the level of seismic intensity.
When a natural process disrupts humans, it no longer operates as a separate entity, but one that intersects and possesses a threat to humans. This intersection is termed ‘natural hazard’. India is vulnerable to different natural hazards due to its proximity to geodynamically active locales and unique climatic pattern. Both these factors in different combinations lead to the occurrence of disasters resulting from natural hazards like floods, earthquakes, draught, cyclones and landslides in different parts of the country at frequent intervals. It is observed that impact of natural disasters is felt more severely by people who are socio-economically weak because their habitats are located in vulnerable areas and not designed to withstand the impact of natural disasters. Therefore, the processes of poverty eradication and disaster management are intricately linked. A great majority of slope failures in Jammu & Kashmir State occurs along National Highways and roads. The study of the landslide/slope failure problem in this region is of great concern and a challenge before the geoscientific community to be tackled. The factors generally responsible for this problem are topography, climate, lithology, relative relief (local height), slope angle, structure, drainage, seismicity, landuse and landcover, and anthropogenic activities. The present work is focused on the factors responsible for the initiation of landslide/slope failure along the Jammu - Kishtwar National highway in the Batote - Doda sector.
A large part of central India and a portion of south India are covered with clay soils. These soils have high swelling and shrinkage characteristics and extremely low shear strength. Hence, there is need for improvement of these properties. The practice of using reinforced earth has been well established in soil engineering profession. The use of natural and artificial fibres is a suitable method for soil reinforcing. This method is considered on the condition of optimum mix and suitable moisture. The present study is aimed at determining the behaviour of clay soil reinforced with glass fibre of length 6mm, coir fibre with 12mm length and metal fibre with 20mm length in a random manner. The soil used is a type of clay soil collected from Saibaba colony in Coimbatore district. The composite soils were tested under laboratory conditions and examined for unconfined compression strength (UCS) and compaction test. The fibres are mixed randomly with soil in varying percentages (0.25%, 0.5%, 0.75% and 1%) by dry weight of soil and compacted to maximum dry density at optimum moisture content. The test results indicate a reduction in the maximum dry density and increase in optimum moisture content of soil due to the addition of fibres. It also indicates an improvement in the UCS of soil due to the addition of fibres.
High sediment load is an integral component of the Brahmaputra system and its role, despite being critical in the overall systemic behaviour of the river, is little understood. Due to its sheer amount and the complex behaviour of the sediment transport, its control has remained a challenge. Therefore it is very essential to know the physo-chemical characteristics and sediment load. In this study, an attempt has been made to understand the properties of the sediment with the help SEM, XRD, EDX, AAS and Particle size distribution analysis and estimation of sediment load with the help of ANN to relate these properties towards. The samples were collected from three locations viz. Neamatighat (Jorhat), Bhomoraguri (Tezpur) and Pandu (Guwahati) in Assam. Mineralogical analysis is based on the bulk sample and clay sized fractions. Si, Al, Fe, Mg, Ca, Na and K were analyzed in AAS for determining chemical composition of the sediments. The main aim is to identify the best technique that could adequately predict sediment load to a desired accuracy. Regression model and ANNs were developed using the toolbox of the MATLAB software and also compared with results of Datafit software models. The R2 values were ranging from 0.87 to 0.93 and COE values varied from 0.70 to 0.87 for ANNs in case of sediment concentration. Using Datafit software R2 values for same dataset varied from 0.93 to 1.0 and COE values varied from 0.72 to 0.88 for sediment concentration prediction.
Integrated waste management proposes the most progressive options for waste disposal and management; numerous research studies have indicated that waste administration, collection and recycling of waste materials for the sustainable development of resources for the forthcoming years. One of the critical solid wastes to manage in today’s scenario is waste tyre because large amounts of waste tyre rubbers are produced in the world in each year. 275 millions of waste rubbers are produced by the United States every year and about 180 millions of waste tyres produced by European Continents. Disposing of tyre wastes in a landfill is the conventional practice commonly followed by all the countries. These dumps are served as a great breeding ground for insects and mosquitoes and responsible for the spread of many diseases, this becomes a dangerous health hazard. Incineration is an alternate method of disposing the waste tyre that involves combustion due to high temperature creates global warming. Few quantities of waste tyre rubber used as fuel, pigments, roof and roof covering and for road pavement. In this study experimental investigation is carried out for the complimentary use of waste tyre rubber in both fine and coarse aggregate in concrete.
Jet impacts, from a conical shaped charge, onto a brittle concrete target were examined utilizing the numerical analysis software AUTODYN® to identify a general damage propagation trend. In order to understand general damage propagation, parameters other than penetration depth were used. Specific parameters including the impact angle and jet coherency were varied. Since concrete is a heterogeneous material that contains large amounts of impurities, voids, and non-linear material characteristics, the study of damage propagation is an important topic in various applications areas. A simplified numerical analysis of the impact event was accomplished as a preliminary study to understand the relationship of a shaped charge jet impact and subsequent damage propagation behaviors. It was identified that the particulated jet, after elongation, creates more substantial damage propagation characteristics than that of solid jets.
This paper presents the effect of Alkali activator / Fly ash ratio (A/F) on strength and workability of geopolymer concrete prepared from low lime based fly ash and a mixed alkali activator of sodium hydroxide and sodium silicate solution. The workability of concrete is found to be increasing when the A/F ratio is increased. An increase in compressive strength of the concrete samples is observed when the A/F ratio is increased for the samples cured at 60oc.