Pub Date : 2024-07-23DOI: 10.46610/jogs.2024.v09i02.004
Gadhave S. L., Supekar M. B.
Waste products from human activity must always be controlled. Reusing some garbage is possible. But a lot of rubbish that could be more useful needs to be disposed of to protect the environment. Landfilling is one popular form of disposal. The most frequent issues with landfills are groundwater contamination and environmental deterioration, brought on by rainfall and leachate generated during the breakdown of organic materials. A landfill's liner is crucial to stop leachate migration and groundwater contamination. Since their development in 1986, Geo-Synthetic Clay Liners (GCLs) have gained popularity as a barrier solution for municipal solid waste landfills. In this study, fly ash and Kaolinite, two waste materials, are combined with bentonite in different percentages 10–30% and 50%, respectively to evaluate their potential usage as liner materials. Bentonite, in combination, is anticipated to function as a low permeability, self-healing, hydraulic barrier due to these swelling qualities.
{"title":"Evaluating the Performance of Modified Geo-Synthetic Clay Liners","authors":"Gadhave S. L., Supekar M. B.","doi":"10.46610/jogs.2024.v09i02.004","DOIUrl":"https://doi.org/10.46610/jogs.2024.v09i02.004","url":null,"abstract":"Waste products from human activity must always be controlled. Reusing some garbage is possible. But a lot of rubbish that could be more useful needs to be disposed of to protect the environment. Landfilling is one popular form of disposal. The most frequent issues with landfills are groundwater contamination and environmental deterioration, brought on by rainfall and leachate generated during the breakdown of organic materials. A landfill's liner is crucial to stop leachate migration and groundwater contamination. Since their development in 1986, Geo-Synthetic Clay Liners (GCLs) have gained popularity as a barrier solution for municipal solid waste landfills. In this study, fly ash and Kaolinite, two waste materials, are combined with bentonite in different percentages 10–30% and 50%, respectively to evaluate their potential usage as liner materials. Bentonite, in combination, is anticipated to function as a low permeability, self-healing, hydraulic barrier due to these swelling qualities.","PeriodicalId":338130,"journal":{"name":"Journal of Geotechnical Studies","volume":"34 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141814126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The PCI is a critical metric to assess the distribution and concentration of precipitation over a specified period. By analyzing historical rainfall data, this research aims to identify trends and patterns in precipitation concentration, shedding light on potential implications for water resource management and hydrological systems. The methodology involves calculating the PCI for different temporal scales and regions, allowing for a comprehensive assessment of rainfall variability. The findings contribute to a deeper understanding of precipitation dynamics, facilitating informed decision-making in climate-sensitive sectors. There are simple rainfall measures that can be used to provide information on variability and, therefore, on the climate state. These mainly include annual and monthly rainfall data and averages, which can be used to assess rainfall seasonality, variability, and the frequency of extreme events.
{"title":"Analysis of Rainfall Variability Using Precipitation Concentration Index for a Catchment","authors":"Nina Dhamge, Pawan Khawas, Vipul, Sneha Dighore, Tushar Paul, Saloni Meshram","doi":"10.46610/jogs.2024.v09i02.003","DOIUrl":"https://doi.org/10.46610/jogs.2024.v09i02.003","url":null,"abstract":"The PCI is a critical metric to assess the distribution and concentration of precipitation over a specified period. By analyzing historical rainfall data, this research aims to identify trends and patterns in precipitation concentration, shedding light on potential implications for water resource management and hydrological systems. The methodology involves calculating the PCI for different temporal scales and regions, allowing for a comprehensive assessment of rainfall variability. The findings contribute to a deeper understanding of precipitation dynamics, facilitating informed decision-making in climate-sensitive sectors. There are simple rainfall measures that can be used to provide information on variability and, therefore, on the climate state. These mainly include annual and monthly rainfall data and averages, which can be used to assess rainfall seasonality, variability, and the frequency of extreme events.","PeriodicalId":338130,"journal":{"name":"Journal of Geotechnical Studies","volume":"87 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141835567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-13DOI: 10.46610/jogs.2023.v08i01.005
Mufeeda Nk, Dinesan Vp
Kerala is situated on the Western Ghats' southern edge. Kerala has a topography that is asymmetrical. Its landform is characterized by steep slopes and rolling, quiet hills. Kerala has been experiencing temperature rise, irregular monsoons, and water scarcity for the past few years. The present study includes an investigation of temperature variations in the Kozhikode district, Kerala by examining the Maximum, Minimum, and Average Temperature in annual, seasonal, and monthly variations by time series of meteorological stations in the Kozhikode district. Gridded data of temperature prepared by the Indian Meteorological Department (IMD) and Centre for Water Resources Development and Management (CWRDM) for the Kozhikode region have been used in the study. The temperature data is collected from three meteorological stations in the Kozhikode district. The variation of temperature was analyzed by linear regression method. The statistical significance of the trend can be tested by a non-parametric test, such as the Mann-Kendall Trend Test.
{"title":"Investigation of Temperature Variations in Kozhikode District, Kerala","authors":"Mufeeda Nk, Dinesan Vp","doi":"10.46610/jogs.2023.v08i01.005","DOIUrl":"https://doi.org/10.46610/jogs.2023.v08i01.005","url":null,"abstract":"Kerala is situated on the Western Ghats' southern edge. Kerala has a topography that is asymmetrical. Its landform is characterized by steep slopes and rolling, quiet hills. Kerala has been experiencing temperature rise, irregular monsoons, and water scarcity for the past few years. The present study includes an investigation of temperature variations in the Kozhikode district, Kerala by examining the Maximum, Minimum, and Average Temperature in annual, seasonal, and monthly variations by time series of meteorological stations in the Kozhikode district. Gridded data of temperature prepared by the Indian Meteorological Department (IMD) and Centre for Water Resources Development and Management (CWRDM) for the Kozhikode region have been used in the study. The temperature data is collected from three meteorological stations in the Kozhikode district. The variation of temperature was analyzed by linear regression method. The statistical significance of the trend can be tested by a non-parametric test, such as the Mann-Kendall Trend Test.","PeriodicalId":338130,"journal":{"name":"Journal of Geotechnical Studies","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126085076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-22DOI: 10.46610/jogs.2023.v08i01.001
Sabiha Ashtara Rekha, Taimur Rahman
Liquefied natural gas (LNG) is widely used all over the world and is transported by different types of pressurized tanks, among which the most convenient transfer method is a type C pressurized cylindrical tank. Any damage or leak in the tank might pose a serious risk. As a result, it is critical to investigate both its static and dynamic features. This paper represents the computational analysis of how the tank will behave under different load cases and also under different earthquake ground motions. The static analysis has been done with different internal pressure stresses and ultimate bearing pressure stress has been recognized. The tank has been subjected to modal analysis to get various mode shape findings with resonant frequencies in order to satisfy the requirements for analyzing the tank under various earthquake ground motions. Transient analysis has been utilized to assess dynamic behavior. A concept of selecting different ground motions is presented in this paper. Site parameters have been split into four categories, and the four sites with the severest real ground motions have been selected for this study. The paper represents how the tank will deform under different earthquake motions based on its location and site categories.
{"title":"Dynamic Behavior Analysis of LNG Tank Under Different Earthquake Loads","authors":"Sabiha Ashtara Rekha, Taimur Rahman","doi":"10.46610/jogs.2023.v08i01.001","DOIUrl":"https://doi.org/10.46610/jogs.2023.v08i01.001","url":null,"abstract":"Liquefied natural gas (LNG) is widely used all over the world and is transported by different types of pressurized tanks, among which the most convenient transfer method is a type C pressurized cylindrical tank. Any damage or leak in the tank might pose a serious risk. As a result, it is critical to investigate both its static and dynamic features. This paper represents the computational analysis of how the tank will behave under different load cases and also under different earthquake ground motions. The static analysis has been done with different internal pressure stresses and ultimate bearing pressure stress has been recognized. The tank has been subjected to modal analysis to get various mode shape findings with resonant frequencies in order to satisfy the requirements for analyzing the tank under various earthquake ground motions. Transient analysis has been utilized to assess dynamic behavior. A concept of selecting different ground motions is presented in this paper. Site parameters have been split into four categories, and the four sites with the severest real ground motions have been selected for this study. The paper represents how the tank will deform under different earthquake motions based on its location and site categories.","PeriodicalId":338130,"journal":{"name":"Journal of Geotechnical Studies","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114245520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-28DOI: 10.46610/jogs.2022.v07i03.004
Salfin Biswas, S. Ahammed
Five prototypes arranged in three different soil conditions is presented to find out the load-settlement relationship of soil and foundation. For creating three types of condition two types of managed soils are stiff clay and soft clay. The five prototypes used here represent the condition of shallow foundation. Prototypes area being same for cases has the shape of Triangular, Square, Rectangular, Pentagonal and Hexagonal. The load-settlement behavior has been found out plan-wise using Plaxis 3D software. Geotechnical engineering software which uses finite element method and Mohr-Coulomb failure criterion following mathematical differential equational problems. Plaxis 3D software uses the properties of soil cohesion, angle of internal friction, Elasticity modulus and unit weight, elasticity modulus of the foundation to settle a relation for the interaction between soil and foundation. Load-settlement behavior for the five prototypes as tried to be found out by Plaxis 3D has represented the immediate settlement of soil on which the prototypes have been rested. The graphs also help to understand the difference in the bearing capacity and settlement for the five prototypes, each of which acted as foundations. Pressure bulb is an effect of vertical pressure which differs from shape to shape of foundation. It directly affects the intensity of pressure and the intensity of pressure affects the settlement. The bearing capacity also affects the settlement. A triangular foundation has the best bearing capacity as its settlement is the lowest. But as a triangular shaped foundation is not practically used and not ideal it is not used for structural work. This study shows that square or rectangular foundation is best for a structure due to higher bearing capacity and lesser settlement compared to the same of pentagonal and hexagonal shaped foundation. But if comparison is done between square and rectangular shaped foundation, square is the best.
{"title":"Effect of Foundation Shape on Settlement by Numerical Method","authors":"Salfin Biswas, S. Ahammed","doi":"10.46610/jogs.2022.v07i03.004","DOIUrl":"https://doi.org/10.46610/jogs.2022.v07i03.004","url":null,"abstract":"Five prototypes arranged in three different soil conditions is presented to find out the load-settlement relationship of soil and foundation. For creating three types of condition two types of managed soils are stiff clay and soft clay. The five prototypes used here represent the condition of shallow foundation. Prototypes area being same for cases has the shape of Triangular, Square, Rectangular, Pentagonal and Hexagonal. The load-settlement behavior has been found out plan-wise using Plaxis 3D software. Geotechnical engineering software which uses finite element method and Mohr-Coulomb failure criterion following mathematical differential equational problems. Plaxis 3D software uses the properties of soil cohesion, angle of internal friction, Elasticity modulus and unit weight, elasticity modulus of the foundation to settle a relation for the interaction between soil and foundation. Load-settlement behavior for the five prototypes as tried to be found out by Plaxis 3D has represented the immediate settlement of soil on which the prototypes have been rested. The graphs also help to understand the difference in the bearing capacity and settlement for the five prototypes, each of which acted as foundations. Pressure bulb is an effect of vertical pressure which differs from shape to shape of foundation. It directly affects the intensity of pressure and the intensity of pressure affects the settlement. The bearing capacity also affects the settlement. A triangular foundation has the best bearing capacity as its settlement is the lowest. But as a triangular shaped foundation is not practically used and not ideal it is not used for structural work. This study shows that square or rectangular foundation is best for a structure due to higher bearing capacity and lesser settlement compared to the same of pentagonal and hexagonal shaped foundation. But if comparison is done between square and rectangular shaped foundation, square is the best.","PeriodicalId":338130,"journal":{"name":"Journal of Geotechnical Studies","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132060064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-13DOI: 10.46610/jogs.2022.v07i02.001
Ashish R. Pawar, Vaibhav Singh
Geotechnical characterization of soil helps in determine and interpret soil behaviour in a specific location, and determine soil properties such as moisture content, specific gravity, plasticity, grain size analysis, strength properties, compressibility, and bearing capacity. The nature of geological formation is complex. The soil characteristics vary significantly with depth and horizontally at a particular site, as is commonly observed. Appropriate identification of different layers of soil, horizontal variations in layer depth and thickness, assessment of soil type and numerous technical qualities, and their variability within each layer are all critical. The soil testing process benefits the project's decision-making and cost-estimating stages. In this paper, a review has been presented regarding different geotechnical site characterizations conducted worldwide for various civil engineering projects were investigated.
{"title":"Geotechnical Site Characterization-A Review","authors":"Ashish R. Pawar, Vaibhav Singh","doi":"10.46610/jogs.2022.v07i02.001","DOIUrl":"https://doi.org/10.46610/jogs.2022.v07i02.001","url":null,"abstract":"Geotechnical characterization of soil helps in determine and interpret soil behaviour in a specific location, and determine soil properties such as moisture content, specific gravity, plasticity, grain size analysis, strength properties, compressibility, and bearing capacity. The nature of geological formation is complex. The soil characteristics vary significantly with depth and horizontally at a particular site, as is commonly observed. Appropriate identification of different layers of soil, horizontal variations in layer depth and thickness, assessment of soil type and numerous technical qualities, and their variability within each layer are all critical. The soil testing process benefits the project's decision-making and cost-estimating stages. In this paper, a review has been presented regarding different geotechnical site characterizations conducted worldwide for various civil engineering projects were investigated.","PeriodicalId":338130,"journal":{"name":"Journal of Geotechnical Studies","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122302322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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