Pub Date : 2018-12-31DOI: 10.3126/JACEM.V4I0.23198
R. Shrestha
Continuous revision of curriculum is important in academic institutions. First revision of the curriculum of Mechanical Engineering was completed in 1999. Second revision of the curriculum was started in 2009 and completed in 2015. It is important for engineering practice to make competitive curriculum for producing quality students by using modern techniques, skills and engineering tools. Analysis of Curriculum-1999 and 2009 were performed. General out lines of the curriculum revisions were introduced. Features of the curriculum revisions were discussed in detail. Competitive analysis of curriculums of contemporize universities of Asia were performed. Accreditation process were analysed, taking reference of European and American systems. Updating equipment in workshop and laboratories with latest technologies were found necessary.
{"title":"Prospective of Curriculum Revision in Mechanical Engineering, Institute of Engineering Tribhuvan University","authors":"R. Shrestha","doi":"10.3126/JACEM.V4I0.23198","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23198","url":null,"abstract":"Continuous revision of curriculum is important in academic institutions. First revision of the curriculum of Mechanical Engineering was completed in 1999. Second revision of the curriculum was started in 2009 and completed in 2015. It is \u0000important for engineering practice to make competitive curriculum for producing quality students by using modern techniques, skills and engineering tools. Analysis of Curriculum-1999 and 2009 were performed. General out lines of the curriculum revisions were introduced. Features of the curriculum revisions were discussed in detail. Competitive analysis of curriculums of contemporize universities of Asia were performed. Accreditation process were analysed, taking reference of European and American systems. Updating equipment in workshop and laboratories with latest technologies were found necessary.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127380096","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 : 2018-12-31DOI: 10.3126/JACEM.V4I0.23197
R. Shah, M. Alqarni
Construction activities on highway projects are the key source of safety risks to workers and motorists. Workplace fatalities and injuries have significantly reduced since 1970 after implementation of OSHA (Occupational Safety and Health Administration) regulations. However, ergonomic injuries caused by ergonomic risk factors such as awkward or sustained posture, forceful exertion or stain, contract pressure, exposure to vibration, extreme heat or cold environment have major impact on the productivity and safety on the highway construction sites. The paper focuses on identifying the existing safety practices that aid to prevent ergonomic injuries at the highway construction sites. A comprehensive review of literature reveals that majority of work place injuries and fatality victims are from private employment whereas a very few injuries coming from the state or local government employees from contractors. The primary data was collected using questionnaire survey, interview and observations and the spreadsheet was used to analyse the collected data about the causes of workplace injuries and possible measures. The survey results reveal that the most of the injuries such as musculoskeletal disorders, strain and accidents transpired due to the collision with equipment and vehicle!s related incidents. Dump truck, tippers, motor graders and cars cause the frequently reported workplace injuries. The paper concludes that use of Personal Protective Equipment (PPE), compliance to safety regulations, improving traffic control system and changing the culture of employers and employees are possible safety practices need to be adopted to mitigate the ergonomic workplace injuries in the highway construction projects particularly in the developing and least developed countries.
{"title":"An Investigation of Health and Safety Issues at Highway Construction Sites in Developing Countries","authors":"R. Shah, M. Alqarni","doi":"10.3126/JACEM.V4I0.23197","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23197","url":null,"abstract":"Construction activities on highway projects are the key source of safety risks to workers and motorists. Workplace fatalities and injuries have significantly reduced since 1970 after implementation of OSHA (Occupational Safety and Health Administration) regulations. However, ergonomic injuries caused by ergonomic risk factors such as awkward or sustained posture, forceful exertion or stain, contract pressure, exposure to vibration, extreme heat or cold environment have major impact on the productivity and safety on the highway construction sites. The paper focuses on identifying the existing safety practices that aid to prevent ergonomic injuries at the highway construction sites. A comprehensive review of literature reveals that majority of work place injuries and fatality victims are from private employment whereas a very few injuries coming from the state or local government employees from contractors. The primary data was collected using questionnaire survey, interview and observations and the spreadsheet was used to analyse the collected data about the causes of workplace injuries and possible measures. The survey results reveal that the most of the injuries such as musculoskeletal disorders, strain and accidents transpired due to the collision with equipment and vehicle!s related incidents. Dump truck, tippers, motor graders and cars cause the frequently reported workplace injuries. The paper concludes that use of Personal Protective Equipment (PPE), compliance to safety regulations, improving traffic control system and changing the culture of employers and employees are possible safety practices need to be adopted to mitigate the ergonomic workplace injuries in the highway construction projects particularly in the developing and least developed countries.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124513357","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 : 2018-12-31DOI: 10.3126/JACEM.V4I0.23177
Deepti Adhikari, A. Gautam
The major earthquake in April 25, 2015 of Mw 7.8 and aftershock of intensity Mw 7.3 on May 12, 2015 has caused not only a substantial death toll and huge economic losses, but also heavy damage to many buildings. This paper outlines the common observed damage patterns of different types of buildings in Kathmandu valley induced by the earthquake and their constructional deficiencies..We visited Department Of Urban Development and Building Construction (DUDBC) of Nepal Government, and Nepal Society for Earthquake Technology (NSET) and got various information regarding structural damages caused by Gorkha earthquake. After acquiring knowledge on this topic through internet and from NSET and DUDBC, the structural failure analysis of buildings affected during the earthquake in Kathmandu Valley was done by photo observation. Both unreinforced masonry buildings and reinforced masonry structures suffered low to heavy destruction. The construction and structural deficiencies were identified to be the major cause of failure, however local soil amplification, foundation problems, liquefaction associated damages and local settlement related damages were also significantly observed during this earthquake and reported in the paper. The Gorkha earthquake sequences delivered unprecedented opportunity to augment the understanding on seismic performance of the buildings. This paper is also motivated to point out the faintness in the past to current constructional practice of buildings, provide preventive measure and convey awareness to stake holders for future safer building construction practice.
{"title":"Structural Failure Analysis of Earthquake Affected Buildings in Gorkha (Nepal) Earthquake 2015 in Kathmandu Valley","authors":"Deepti Adhikari, A. Gautam","doi":"10.3126/JACEM.V4I0.23177","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23177","url":null,"abstract":"The major earthquake in April 25, 2015 of Mw 7.8 and aftershock of intensity Mw 7.3 on May 12, 2015 has caused not only a substantial death toll and huge economic losses, but also heavy damage to many buildings. This paper outlines the common observed damage patterns of different types of buildings in Kathmandu valley induced by the earthquake and their constructional deficiencies..We visited Department Of Urban Development and Building Construction (DUDBC) of Nepal Government, and Nepal Society for Earthquake Technology (NSET) and got various information regarding structural damages caused by Gorkha earthquake. After acquiring knowledge on this topic through internet and from NSET and DUDBC, the structural failure analysis of buildings affected during the earthquake in Kathmandu Valley was done by photo observation. Both unreinforced masonry buildings and reinforced masonry structures suffered low to heavy destruction. The construction and structural deficiencies were identified to be the major cause of failure, however local soil amplification, foundation problems, liquefaction associated damages and local settlement related damages were also significantly observed during this earthquake and reported in the paper. The Gorkha earthquake sequences delivered unprecedented opportunity to augment the understanding on seismic performance of the buildings. This paper is also motivated to point out the faintness in the past to current constructional practice of buildings, provide preventive measure and convey awareness to stake holders for future safer building construction practice.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134069107","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 : 2018-12-31DOI: 10.3126/jacem.v4i0.23206
S. Dulal, S. Shakya
This paper presents the current energy security status of the province No.1 of Nepal using numerous indicators. In addition to that, with the development of six economic growth scenarios i.e. Business As Usual (BAU), Low growth (LOW), High growth (HIG), Accelerated growth (ACC), Normal growth (NOR) and Intervention scenario (INT), the future energy mix and energy security indicators for the year 2040 are also calculated. The paper also gives an overview of the variation/progress of the different indicators during the considered period of study. The study shows that the, energy intensity in the intervention scenario is brought down to 4.44 GJ/$1000 compared to that of 15 GJ/$1000. Also, the electricity consumption per capita is increased to 574 kWh from 116 in the base year. However, these values are only achieved if the provincial government helps implementing central government's plan of promoting the electrical systems instead of traditional fuel woods and fossil fuels system.
{"title":"Energy Security and Scenario Analysis of Province No. 1 of Federal Republic Nepal","authors":"S. Dulal, S. Shakya","doi":"10.3126/jacem.v4i0.23206","DOIUrl":"https://doi.org/10.3126/jacem.v4i0.23206","url":null,"abstract":"This paper presents the current energy security status of the province No.1 of Nepal using numerous indicators. In addition to that, with the development of six economic growth scenarios i.e. Business As Usual (BAU), Low growth (LOW), High growth (HIG), Accelerated growth (ACC), Normal growth (NOR) and Intervention scenario (INT), the future energy mix and energy security indicators for the year 2040 are also calculated. The paper also gives an overview of the variation/progress of the different indicators during the considered period of study. The study shows that the, energy intensity in the intervention scenario is brought down to 4.44 GJ/$1000 compared to that of 15 GJ/$1000. Also, the electricity consumption per capita is increased to 574 kWh from 116 in the base year. However, these values are only achieved if the provincial government helps implementing central government's plan of promoting the electrical systems instead of traditional fuel woods and fossil fuels system.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115646019","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 : 2018-12-31DOI: 10.3126/JACEM.V4I0.23176
Biswambhar Panthi, Nawraj Bhattarai
This paper presents energy consumption in a municipality within hilly region and also analyzes GHG emission under different scenario. For the purpose of study Reshunga municipality was taken, situated in Gulmi district of Nepal occupying an area of 82.74 sq.km. For collection of data, 368 houses were surveyed and the locals were interviewed on their annual consumption. The total energy consumption was 214.8 TJ where 78.25% was supplied by wood. LPG shared 16.14% of demand. Cooking (58%) and water boiling (26%) were the most demanding task. Most of the houses were equipped with ICS, with share 55% of energy demand in cooking. Four different scenario were studied viz. BAU, DSM, BSP and SDG. In, BAU scenario, the energy consumption will reach 245.3 TJ. In DSM scenario and BSP scenario the final energy demand will reduce to 230.7 TJ and 216.2 TJ. In SDG scenario, energy demand is reduced by 23.14%. The share of LPG increases to 22.36 % and electricity demand becomes more than doubles from reaching 10.64% in SDG. From year 2017-2030, there will be total accumulative increase of electricity requirement by 47.4 TJ, whereas total cumulative decrease of 433.5 TJ equivalents can be resulted in consumption of wood in SDG scenario. Cost-Benefit analysis study revealed that DSM will require an investment of 43.03K US$ for demand technologies and will reduce emission by 8.69 tCO2e. DSM will be cheapest in terms of cost per GHG reduction. SDG will cost 645.46K US$ and results in reduction of GHG by 47.79K tCO2e.
{"title":"Energy and Emission Analysis of Residential Sector: A Case Study for Reshunga Municipality in Nepal","authors":"Biswambhar Panthi, Nawraj Bhattarai","doi":"10.3126/JACEM.V4I0.23176","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23176","url":null,"abstract":"This paper presents energy consumption in a municipality within hilly region and also analyzes GHG emission under different scenario. For the purpose of study Reshunga municipality was taken, situated in Gulmi district of Nepal occupying an area of 82.74 sq.km. For collection of data, 368 houses were surveyed and the locals were interviewed on their annual consumption. The total energy consumption was 214.8 TJ where 78.25% was supplied by wood. LPG shared 16.14% of demand. Cooking (58%) and water boiling (26%) were the most demanding task. Most of the houses were equipped with ICS, with share 55% of energy demand in cooking. Four different scenario were studied viz. BAU, DSM, BSP and SDG. In, BAU scenario, the energy consumption will reach 245.3 TJ. In DSM scenario and BSP scenario the final energy demand will reduce to 230.7 TJ and 216.2 TJ. In SDG scenario, energy demand is reduced by 23.14%. The share of LPG increases to 22.36 % and electricity demand becomes more than doubles from reaching 10.64% in SDG. From year 2017-2030, there will be total accumulative increase of electricity requirement by 47.4 TJ, whereas total cumulative decrease of 433.5 TJ equivalents can be resulted in consumption of wood in SDG scenario. Cost-Benefit analysis study revealed that DSM will require an investment of 43.03K US$ for demand technologies and will reduce emission by 8.69 tCO2e. DSM will be cheapest in terms of cost per GHG reduction. SDG will cost 645.46K US$ and results in reduction of GHG by 47.79K tCO2e.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125312290","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 : 2018-12-31DOI: 10.3126/JACEM.V4I0.23204
S. Paudel, S. Shakya
To improve service delivery of government, paper based vital event registration (VER) system should gradually be replaced by ICT based system. This paper highlights the barriers that may stand in implementing ICT in VER. Questionnaire was used to collect primary data. Population size for the research was 6,743 out of which 272 valid responses were used for the research. The gathered data were subjected to demographic study, T-test, ANOVA test and Reliability analysis. The correlation between independent and dependent variables were computed. It was found that nine constructs namely: cost, leadership and management support, organizational process and commitment, usability, human factor, system feature, infrastructure, acts, rules and regulations and political situation are major barriers for implementing ICT based system for vital event registration.
{"title":"Use of ICT in Vital Event Registration in Nepal and its Implementation Challenges","authors":"S. Paudel, S. Shakya","doi":"10.3126/JACEM.V4I0.23204","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23204","url":null,"abstract":"To improve service delivery of government, paper based vital event registration (VER) system should gradually be replaced by ICT based system. This paper highlights the barriers that may stand in implementing ICT in VER. Questionnaire was used to collect primary data. Population size for the research was 6,743 out of which 272 valid responses were used for the research. The gathered data were subjected to demographic study, T-test, ANOVA test and Reliability analysis. The correlation between independent and dependent variables were computed. It was found that nine constructs namely: cost, leadership and management support, organizational process and commitment, usability, human factor, system feature, infrastructure, acts, rules and regulations and political situation are major barriers for implementing ICT based system for vital event registration.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125468241","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 : 2018-12-31DOI: 10.3126/JACEM.V4I0.23182
Laxman Motra, S. Karki
The effect of diameter, length and rotational speed of shaft, and mass of runner-buckets assembly on the natural frequency of the Pelton turbine unit was analyzed. Effect of the decisive parameters on the natural frequency of the unit showed that it was directly proportional to the diameter of the shaft and inversely proportional to the length of the shaft and mass of the runner-buckets assembly. For the continuous system model, when the rotational speed of the shaft increased, the natural frequency for the forward whirl also increased but the natural frequency decreased for the backward whirl.
{"title":"Effect of System Parameters on Natural Frequency of the Pelton Turbine","authors":"Laxman Motra, S. Karki","doi":"10.3126/JACEM.V4I0.23182","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23182","url":null,"abstract":"The effect of diameter, length and rotational speed of shaft, and mass of runner-buckets assembly on the natural frequency of the Pelton turbine unit was analyzed. Effect of the decisive parameters on the natural frequency of the unit showed that it was directly proportional to the diameter of the shaft and inversely proportional to the length of the shaft and mass of the runner-buckets assembly. For the continuous system model, when the rotational speed of the shaft increased, the natural frequency for the forward whirl also increased but the natural frequency decreased for the backward whirl.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124109208","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 : 2018-12-31DOI: 10.3126/jacem.v4i0.23178
J. Shrestha
Transportation cost is one of the major costs for public and private sectors in rural areas of developing countries (in order to deliver goods and services). This is due to the absence of links or to their poor physical conditions (such as road surface in a road network). To reduce the operation costs in existing links better road surfaces are needed. However, only some links can be improved or constructed to the best surface level at the same time, due to resource constraints. Hence, a careful decision about which links should be improved or constructed to achieve the minimum transportation cost is needed. This paper presents a decision support model for a rural road network that provides portfolio of suggested links for road network improvements or constructions and offers solutions for different budget levels minimizing the transportation cost in the rural road network. Mixed integer programming is used to get an optimal solution.
{"title":"Rural Road Network Decision Model for Hilly Regions of Nepal","authors":"J. Shrestha","doi":"10.3126/jacem.v4i0.23178","DOIUrl":"https://doi.org/10.3126/jacem.v4i0.23178","url":null,"abstract":"Transportation cost is one of the major costs for public and private sectors in rural areas of developing countries (in order to deliver goods and services). This is due to the absence of links or to their poor physical conditions (such as road surface in a road network). To reduce the operation costs in existing links better road surfaces are needed. However, only some links can be improved or constructed to the best surface level at the same time, due to resource constraints. Hence, a careful decision about which links should be improved or constructed to achieve the minimum transportation cost is needed. This paper presents a decision support model for a rural road network that provides portfolio of suggested links for road network improvements or constructions and offers solutions for different budget levels minimizing the transportation cost in the rural road network. Mixed integer programming is used to get an optimal solution. ","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133732019","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 : 2018-12-31DOI: 10.3126/JACEM.V4I0.23200
R. Danai, I. Acharya
The bearing capacity of foundation is the primary concern in the field of geotechnical engineering. In this study numerical models are developed for each of the secondary borehole data collected around Kathmandu valley. Finite element analysis (i.e. PLAXIS 2D) is carried out using Mohr-coulomb failure criteria to represent two dimensional soil models. Foundation is aimed to model as square footing and prescribed settlement of 10% of footing width is provided to obtain corresponding bearing capacity. In plaxis, effective stress is considered as an ultimate bearing capacity. Drained behavior with axisymmetical models have been considered for soil model in plaxis software. Various soil parameters like C (Cohesion), γ (unit weight), Φ (Frictional angle), ν (Poison ratio), E (Elasticity) for each 1.5m and 3m depths have been considered in models and in theoretical approaches.
{"title":"Bearing Capacity Analysis and Zoning of Kathmandu for Shallow Foundations","authors":"R. Danai, I. Acharya","doi":"10.3126/JACEM.V4I0.23200","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23200","url":null,"abstract":"The bearing capacity of foundation is the primary concern in the field of geotechnical engineering. In this study numerical models are developed for each of the secondary borehole data collected around Kathmandu valley. Finite element analysis (i.e. PLAXIS 2D) is carried out using Mohr-coulomb failure criteria to represent two dimensional soil models. Foundation is aimed to model as square footing and prescribed settlement of 10% of footing width is provided to obtain corresponding bearing capacity. In plaxis, effective stress is considered as an ultimate bearing capacity. Drained behavior with axisymmetical models have been considered for soil model in plaxis software. Various soil parameters like C (Cohesion), γ (unit weight), Φ (Frictional angle), ν (Poison ratio), E (Elasticity) for each 1.5m and 3m depths have been considered in models and in theoretical approaches.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133454088","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 : 1900-01-01DOI: 10.3126/jacem.v6i0.38358
S. Shrestha, I. Acharya, R. Dahal
Instability of slopes is usually governed by a combination of intrinsic and extrinsic factors. The inherent variability of parameters make the problem probabilistic rather than a deterministic one. This research deals with evaluation of stability of slopes with the calculation of the factor of safety of Dasdhunga soil slope along Narayangarh- Mugling road section under different rainfall conditions through the use of coupled finite element and limit equilibrium method in GeoStudio and the determination of probability of failure by sliding, modeled as infinite slopes by using Monte Carlo simulation in R-Studio. Mean, standard deviation, minimum and maximum values of the parameters like- friction angle, cohesion and unit weight were computed from eight samples of the slope. The pore water pressure developed and its corresponding statistical data for different rainfall conditions were computed from FEM based SEEP/W simulation. The above parameters are assumed to follow truncated normal probability distribution function and the geometric parameters like height and slope angle are regarded as constant parameters. It was observed that the safety factors for theslopeis low in high intensity-low duration rainfalls and the probability of failure is high. The tendency to fail increases as the return period of rainfall increases and viceversa. Sensitivity analysis performed in both deterministic and probabilistic methods showed that friction angle is the most sensitive.
{"title":"Deterministic and Probabilistic Analysis of Dasdhunga Soil Slope along Narayangarh-Mugling Road Section","authors":"S. Shrestha, I. Acharya, R. Dahal","doi":"10.3126/jacem.v6i0.38358","DOIUrl":"https://doi.org/10.3126/jacem.v6i0.38358","url":null,"abstract":"Instability of slopes is usually governed by a combination of intrinsic and extrinsic factors. The inherent variability of parameters make the problem probabilistic rather than a deterministic one. This research deals with evaluation of stability of slopes with the calculation of the factor of safety of Dasdhunga soil slope along Narayangarh- Mugling road section under different rainfall conditions through the use of coupled finite element and limit equilibrium method in GeoStudio and the determination of probability of failure by sliding, modeled as infinite slopes by using Monte Carlo simulation in R-Studio. Mean, standard deviation, minimum and maximum values of the parameters like- friction angle, cohesion and unit weight were computed from eight samples of the slope. The pore water pressure developed and its corresponding statistical data for different rainfall conditions were computed from FEM based SEEP/W simulation. The above parameters are assumed to follow truncated normal probability distribution function and the geometric parameters like height and slope angle are regarded as constant parameters. It was observed that the safety factors for theslopeis low in high intensity-low duration rainfalls and the probability of failure is high. The tendency to fail increases as the return period of rainfall increases and viceversa. Sensitivity analysis performed in both deterministic and probabilistic methods showed that friction angle is the most sensitive.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116689683","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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