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Journal of Civil and Environmental Engineering

ISSN: 2165-784X

Open Access

Current Issue

Volume 11, Issue 3 (2021)

    Editorial Pages: 1 - 1

    Green Buildings - A Step Towards Environmental Protection

    Sushma Pullela

    The green building may be named economical building that deals with ecological issues inside or outside the building premises. These natural problems incorporate vitality effectiveness ventures to spare vitality, water protection and reduce in water utilization, indoor air quality, building air ventilation and lightweight, diminishment of contaminations, higher eudemonia, reduction in heat island and reflective power impacts. The urban community’s effort natural problems have begun receiving green building concepts as a stage towards environmental protection. The authors of the present paper have in short dealt the importance of inexperienced buildings structures alongside the expected steps to be taken in making green structures and also the subsequent blessings there from. Green framework prompts multi-dimensional and utilitarian advantages regarding ideal biological systems and sound climate alongside giving wide scope of natural, social, environmental change variation and relief, and biodiversity benefits.

    Editorial Pages: 1 - 1

    Editorial on Geotechnical Engineering

    Sushma Pullela

    The systematic implementation of techniques that make construction on, in, or with geomaterials, such as soil and rock, is known as geotechnical engineering. Any civil engineering structure and construction is connected to soil in some way, and as a result, its architecture is influenced by soil or rock properties. Soil drilling, examining geomaterial properties, monitoring groundwater level and flow, and environmental and hydrological interactions all involve geotechnical operations. Excavations and supporting earth systems, underwater structures, bridges, natural or artificial fills, highways and airports, subgrades and ground structures, and slopes are all examples of foundation architecture.

    Editorial Pages: 1 - 1

    Micro Plastics In Wastewater Treatment Processes

    Sushma Pullela

    Based on the water content of the influent and the effluent discharge level, wastewater treatment plants are built to provide different water treatment method configurations of different water treatment facilities. Pre-treatment, primary care, and secondary treatment are all part of traditional wastewater treatment. Bar screening, degreasing, air flotation, primary sedimentation, biofilm process/activated sludge process, and secondary sedimentation are among the treatment methods used. Tertiary treatment with (sand) filtration, advanced oxidation, and membrane filtration are used to further increase effluent efficiency. So far, no treatment procedure has been formulated explicitly for the removal of MPs, and only a few studies have looked at the thorough removal efficiencies of MPs at various levels of WWTPs.

    Editorial Pages: 1 - 1

    Computational Fluid Dynamics

    Sushma Pullela

    The method of mathematically modelling a physical phenomenon involving fluid flow and solving it numerically using analytical prowess is known as computational fluid dynamics (CFD). Aerodynamics plays an important part in the manufacturing phase when an architect is tasked with developing a new vehicle, such as a winning racing car for the coming season. Aerodynamic processes, on the other hand, are difficult to quantify during the concept stage. Physical checks on product samples are typically the only way for an inventor to refine his designs.

    Editorial Pages: 1 - 1

    Transportation Engineering

    Sushma Pullela

    Transportation engineering, also known as transport engineering, is the application of technology and science principles to the planning, functional design, operation, and management of facilities for any mode of transportation in order to ensure the secure, reliable, rapid, comfortable, convenient, economical, and environmentally friendly transportation of people and goods. Transportation engineering's planning dimensions are related to aspects of urban planning and include technical forecasting decisions as well as political considerations. The estimation of trip generation (number of purposeful trips), trip distribution, and other technical aspects of passenger travel forecasting are typically done using an urban transportation planning model (destination choice, where the traveller is going). Other aspects of traveller decisions, such as auto ownership, trip chaining (the decision to connect individual trips together in a tour), and the option of residential or business venue, can be included in more sophisticated forecasting (known as land use forecasting). Since passenger trips often reflect the peak of demand on any transportation system, they are the subject of transportation engineering. While facility planning and design remain at the center of the transportation engineering industry, operations planning, logistics, network analysis, funding, and policy analysis are also essential to those employed in highway and urban transportation, according to details of the scope of various committees.

    Volume 11, Issue 4 (2021)

      Research Article Pages: 1 - 9

      "EVALUATION OF THE PERFORMANCE OF HIGH-RESOLUTION SATELLITE BASED RAINFALL PRODUCTS FOR STREAM FLOW SIMULATION."

      Dawit Girma and Belete Berhanu

      Precipitation data is an intrinsic parameter of rainfall-runoff simulation, since it is strongly hooked into the accuracy of the spatial and temporal representation of the precipitation. In areas where rainfall gauging stations are scarce, additional data sources could also be needed. Satellite platforms have provided as a satisfactory alternative because of their global coverage. Although a good range of satellite -based estimations of precipitation is out there, not all the satellite products are suitable for all regions. In addition, in data-scarce areas where interpolation schemes are applied, it becomes difficult to get an accurate performance assessment; another comparison method is required as rainfal l-runoff models. Remotely-sensed estimates are to get realistic and reliable data to be accessed in water resource assessments. Therefore, there is a requirement to evaluate the accuracy of remote sensing techniques. Inter comparison between Satellite rainfall product and observed data were done using point to grid method selecting representative metrological stations. Inter comparison between Satellite rainfall product and observed data were done using point to grid method selecting representative metrological stations. TAMSAT shows the average value of R=0.87 and NS =0.764. Considering four categorical index POD, FAR, FB and HSS, the average value 0.71, 0.22, 0.92, and 0.66 respectively. For CHRIPS average R and NS are 0.88 and 0.755 respectively and categorical index POD, FAR, FB and HSS were 0.8,0.05, 0.85 and 0.81) respectively. The study model stream flow using both CHRIPS and TAMSAT rainfall products by using the SWAT model from 1983 to 2017. The model was calibrated from 1998 to 2003 and validated from 2004 to 2007 using SUFI-2 algorithm embodied in the SWAT-CUP. The Nash-Sutcliffe Efficiency (NSE), linear correlation coefficient (R) and BIAS indices were used to benchmark the model performance and shows very good result (having R2 and NS=0.71- 0.95 during calibration and 0.72-0.97 during validation.

      Editorial Pages: 1 - 1

      Earthquake Engineering

      Sushma Pullela

      The objective of earthquake engineering research is to advance the state of knowledge by conducting fundamental and applied research to assist decision-makers in reducing seismic risks. All entities and organisations influencing the planning and design/construction process, such as planning or regulatory agencies, owners, investors, and insurers, as well as the engineers who protect them through earthquake-resistant design are considered decision-makers.

      Editorial Pages: 1 - 1

      Engineering Informatics and Simulation

      Sushma Pullela

      Traditional obstacles to introducing and incorporating new technology in the design and construction industry have included the threat of lawsuits, government legislation, code limitations, and the high cost of insurance.Furthermore, unlike other manufacturing industries, the “one-off" development climate imposes a lack of mass production opportunity in the civil engineering market. As a result, there is a particular need for creativity in design procedures and construction techniques unique to this industry. Computers have the potential to be a major enabler of future progress in the design and construction industries.

      Editorial Pages: 1 - 1

      Structural Engineering

      Sushma Pullela

      Structural engineering is the branch of engineering that deals with a buildings or structure's structural integrity and power. Structural engineering is a structural engineering specialty that ensures buildings are secure, stable, and do not collapse when loaded. It is primarily concerned with the structure's study and design.A thorough examination of the wind speed that can bear structural loads, as well as the building's overall capacity and usefulness, offers additional details. The framework will be analysed using structural engineering principles to ensure that it complies with all of the relevant design codes.

      Editorial Pages: 1 - 1

      Editorial note : Sustainable Development

      Sushma Pullela

      Sustainable development is described as "meeting current needs without jeopardising future generations' ability to meet their own needs." Sustainable development refers to the use of a natural resource in a way that does not deplete or eradicate their value for future generations, such as coal, crude oil, and forests.

      Volume 11, Issue 5 (2021)

        Editorial Pages: 1 - 1

        Editorial on Hazardous-waste Management

        Sushma Pullela

        Hazardous-waste management refers to the collection, treatment, and disposal of waste that, if managed improperly, can endanger human health and safety as well as the environment. Hazardous wastes might be solids, liquids, sludge’s, or confined gases, and they are primarily produced by chemical, manufacturing, and other industrial processes. They can cause damage if they are not properly stored, transported, treated, or disposed of. Improper hazardous-waste storage or disposal regularly pollutes surface and groundwater resources, as well as being a cause of hazardous land pollution. People who live near old and abandoned trash disposal sites may be especially exposed.

        Editorial Pages: 1 - 1

        Editorial On Waste Treatment Using Plasma Arc Gasification

        Sushma Pullela

        Plasma arc gasification (PAG) is a waste-treatment method that uses a mix of electricity and high temperatures to convert municipal waste (garbage or trash) into useable by-products without the use of combustion (burning). Although plasma gasification is sometimes associated with incinerating or burning trash, it does not combust the garbage like incinerators do. Instead, it turns organic waste into a gas that retains all of its chemical and thermal energy, while inorganic waste is converted into slag, an inert vitrified glass. The method can reduce the amount of waste delivered to landfills while also producing electricity.

        Editorial Pages: 1 - 1

        Editorial On Soil Stabilization

        Sushma Pullela

        Soil stabilization is the process of altering engineering features of soil, such as strength parameters, in order to increase the soil's carrying capacity. It’s usually done when the subgrade soil isn't strong enough to support the structural loads. Soil stabilization improves the soil's shear strength while also lowering the permeability and compressibility of the mass. Soil compaction and drainage are the most basic soil stabilisation techniques. Soil stabilisation is critical for pavement construction. The shear strength capability of the pavement is constantly emphasised, as it must be sufficient to resist shear forces and prevent layer deflection due to fatigue. The soil stabilisation process can improve several soil properties.

        Editorial Pages: 1 - 1

        Editorial On Segregation Of Concrete

        Sushma Pullela

        Segregation of concrete is the separation of concrete ingredients so that their distribution in the concrete mix is not uniform. Over-vibration or compaction of concrete can also cause segregation, with cement paste rising to the top and particles sinking to the bottom. Concrete segregation has an impact on construction strength and durability. All concrete aggregates are equally coated with sand and cement paste in good concrete, resulting in a uniform mass.

        Editorial Pages: 1 - 1

        Editorial on Coastal Engineering

        Sushma Pullela

        Coastal engineering is a discipline of civil engineering that deals with the unique challenges of building near or on the coast, as well as the development of the coast itself. The hydrodynamic influence of waves, tides, storm surges, and tsunamis, as well as the (often) harsh environment of salt seawater, are common issues for coastal engineers, as are morph dynamic changes in the coastal topography, which are induced by both natural and man-made changes. Ocean and sea coasts, seas, marginal seas, estuaries, and large lakes are all regions of interest in coastal engineering. Coastal engineers are frequently involved in integrated coastal zone management, in addition to the design, construction, and maintenance of coastal infrastructure.

        Volume 11, Issue 6 (2021)

          Research Article Pages: 1 - 4

          Glass Fiber Reinforced Concrete Behavioral Studies in Flexure

          Sumit Guha*

          Fiber-reinforced polymer (FRP) bars have been commercially available in civil engineering in the 6 last twenty years. Due to their mechanical and physical properties, the behavior of FRP reinforced 7 concrete (RC) members is significantly different to that of traditional steel RC. This paper presents 8 the results and discussion of a numerical study of the flexural behavior of simply supported glass 9 fiber-reinforced polymer (GFRP) RC beams under short-term static loads. The numerical analysis 10 was performed using the Finite Element Method (FEM). All calculations were carried out in the 11 environment of the Abaqus. The main objective of this paper was to investigate the flexural behavior 12 of GFRP RC members depending on the reinforcement ratio. The results of the numerical analysis 13 were examined and compared with code formulations and with the results of experiments.

          Research Article Pages: 1 - 6

          Application of Electrocoagulation in Treatment of Spent Caustic from Olefin Plants

          Ehsan Honarvar

          In this research the electrocoagulation method was implemented in order to study the treatment of the Spent caustic effluent from an olefin plant. To optimize the process parameters, Taguchi method was used, and the optimal conditions were found for pH of 6, current density of 35 mA/cm2, and treatment time at 40 minutes. The experimental results show that the final efficiency in case of reducing the amount of COD is around 89% under optimum operating conditions and pH has the most significant impact on the process with contribution factor of 79.10%. According to results of XRD and XRF analysis, the sludge behavior is very similar to that of sodium sulfate that is important for its value chain. The study results showed that the electrocoagulation method could be used a complimentary facility to reduce the amount of COD of Spent Caustic from an Olefin Plant.

          Research Article Pages: 1 - 3

          Residual Life Assessment of EOT Crane

          Sumit Guha

          Loads and working conditions of the cross-section of 36 m span crane beam can be analyzed by 7 finite element method. Firstly, analysis of the stress and deformation is completed under the dangerous 8 condition of crane beam based on the ANSYS software; secondly, found out the stress concentration and fatigue 9 crack sensitive area of the bearing; finally, captured the position of fatigue crack. All these methods can 10 provide strong basis for implementing effective monitoring to the state of the crane beam stress. Thus, 11 ensure safe operation of equipment and improve equipment utilization rate in work.

          Research Article Pages: 1 - 3

          Behaviour of RCC Structure Subjected to Blast Loading

          Sumit Guha

          The problem identified by research is the effects of blast loading on RCC structures. A comprehensive parametric study was conducted on RCC structure using the 3-D element model. In the analysis and design methodologies structures are subjected to blast loads with the understanding of blast phenomena and the dynamic response of various structural elements. This gives an parametric overview of the effects of blast effects on structures. Here in this paper, we are dealing with the blast force and its impact on the RCC structures. The blast pressures i.e. reflected blast pressure and overpressure have been evaluated. From this values blast forces have been evaluated. The values coming after displacement shows that as the floor height increases, deflection caused due to blast effect decreases. The result also shows relevant bending moment, shear force, axial forces. Deflection, axial force values of blast forces for charge 1500 kg at standoff distance 30 m is greater. Hence it has been concluded

          Research Article Pages: 1 - 11

          A New Criterion on Designing an Effective Cable Bolt Length Subject to Static Loading in Underground Excavations

          Fhatuwani Sengani

          A simple probability analysis failure criterion for cable bolts in underground excavation is described. The criterion was developed using static loading tests of mechanical anchors (38 tons, 18 mm diameter cable, 2 m length and six strands), and Finite Element Method. Three static loading tests were performed, thereafter, an underground excavation was simulated with several wedges wherein the effectiveness of the bolt was tested in varying spacing, while other parameters remaining constant. A simple probability criterion was therefore developed to bridge the gap on identifying effective bolt length and total effective length of the bolts within the excavation in varying strata control (change in angle of the strata and change in thickness of the strata). The criterion is suitable for predicting the effective bolt length, predicting the total effective bolts length within the excavation provided the orientation and thickness of strata in known and also suitable to classify the excavation as over/under supported. Two practical applications and examples of the criterion are described. These are firstly, identifying of and secondly, predicting the effective bolt length and total effective length of the bolts in strata with varying orientation and thickness in both hanging and side walls

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