Pub Date : 2017-03-06DOI: 10.21276/IJEE.2017.10.0106
Birhanu Ermias, T. Raghuvanshi, B. Abebe
: In the present study landslide hazard zonation (LHZ) was carried out in an area around Alemketema town, central Ethiopia, about 120 km north of Addis Ababa. For LHZ map preparation, GIS based expert evaluation technique was followed. The parameters considered are; slope geometry, slope material, structural discontinuities, landuse and landcover, groundwater, seismicity, rainfall and manmade activities. For landslide hazard evaluation the study area was divided into 273 slope facets and thematic layers on slope facets and intrinsic parameters were prepared in GIS environment from secondary data, topographical map and satellite images. Later, primary data on various parameters was collected facet wise from the field and as per actual observations suitable modifications were made to the thematic maps. Further, geo-processing in GIS environment was done to know the type of parameter classes that fall within each slope facet. Based on the presence of various intrinsic and triggering parameters class within a slope facet, appropriate ratings were assigned to the parameters as per expert evaluation. Later, sum total of all ratings for various parameters form the basis to prepare the LHZ map in GIS. As per prepared LHZ map, 66.9% of the area falls into ‘high hazard zone’ and 33.1% falls into ‘moderate hazard zone’. Validation of this LHZ map revealed that about 80% of past landslides fall within ‘high hazard zone’. This reasonably confirms the rationality of adopted methodology, considered parameters and their evaluation in producing LHZ map.
{"title":"Landslide Hazard Zonation (LHZ) Around Alemketema Town, North Showa Zone, Central Ethiopia - A GIS Based Expert Evaluation Approach","authors":"Birhanu Ermias, T. Raghuvanshi, B. Abebe","doi":"10.21276/IJEE.2017.10.0106","DOIUrl":"https://doi.org/10.21276/IJEE.2017.10.0106","url":null,"abstract":": In the present study landslide hazard zonation (LHZ) was carried out in an area around Alemketema town, central Ethiopia, about 120 km north of Addis Ababa. For LHZ map preparation, GIS based expert evaluation technique was followed. The parameters considered are; slope geometry, slope material, structural discontinuities, landuse and landcover, groundwater, seismicity, rainfall and manmade activities. For landslide hazard evaluation the study area was divided into 273 slope facets and thematic layers on slope facets and intrinsic parameters were prepared in GIS environment from secondary data, topographical map and satellite images. Later, primary data on various parameters was collected facet wise from the field and as per actual observations suitable modifications were made to the thematic maps. Further, geo-processing in GIS environment was done to know the type of parameter classes that fall within each slope facet. Based on the presence of various intrinsic and triggering parameters class within a slope facet, appropriate ratings were assigned to the parameters as per expert evaluation. Later, sum total of all ratings for various parameters form the basis to prepare the LHZ map in GIS. As per prepared LHZ map, 66.9% of the area falls into ‘high hazard zone’ and 33.1% falls into ‘moderate hazard zone’. Validation of this LHZ map revealed that about 80% of past landslides fall within ‘high hazard zone’. This reasonably confirms the rationality of adopted methodology, considered parameters and their evaluation in producing LHZ map.","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131531269","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 : 2017-03-06DOI: 10.21276/ijee.2017.10.0110
Surendra Singh, M. Jat
{"title":"Assessment of Temperature Anomalies Trend at Local Scale for Delhi, India","authors":"Surendra Singh, M. Jat","doi":"10.21276/ijee.2017.10.0110","DOIUrl":"https://doi.org/10.21276/ijee.2017.10.0110","url":null,"abstract":"","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124086973","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 : 2017-03-06DOI: 10.21276/IJEE.2017.10.0115
K. Saikrishna, R. M. Reddy, D. Purushotham, T. Brahmaiah
{"title":"Ferrosyenites from the Cuddapah Intrusive Province (CIP) of Peninsular India","authors":"K. Saikrishna, R. M. Reddy, D. Purushotham, T. Brahmaiah","doi":"10.21276/IJEE.2017.10.0115","DOIUrl":"https://doi.org/10.21276/IJEE.2017.10.0115","url":null,"abstract":"","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133629938","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 : 2017-03-06DOI: 10.21276/IJEE.2017.10.0112
Lujun Ding, Yuhong Liu
{"title":"Study on the Influence of Downstream Slope Ratio on Seismic Response of Concrete Faced Rockfill Dam","authors":"Lujun Ding, Yuhong Liu","doi":"10.21276/IJEE.2017.10.0112","DOIUrl":"https://doi.org/10.21276/IJEE.2017.10.0112","url":null,"abstract":"","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122209003","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 : 2017-03-06DOI: 10.21276/ijee.2017.10.0104
K. Jaiskarun, S. Unnikrishnan
: In this research, the mechanical properties of steel fiber reinforced concrete were investigated experimentally and the results compared with analytical models. Hooked end steel fibers of aspect ratio 50 were added at three proportions and compared with plain concrete. The fiber content is varied at 0%, 0.5%, 0.75%, 1% volume of concrete. The water cement ratio used was 0.51. Tests for compressive strength, flexure strength, splitting tensile strength, modulus of elasticity, impact test on cubes and impact test on slabs were conducted to investigate the influence of hooked end steel fibers in concrete. The experimental results for flexure test and impact test on slabs were compared with analytical results. Analytical study was conducted using commercially available finite element software, ABAQUS.
{"title":"Experimental and Analytical Investigation on Steel Fiber Reinforced Concrete","authors":"K. Jaiskarun, S. Unnikrishnan","doi":"10.21276/ijee.2017.10.0104","DOIUrl":"https://doi.org/10.21276/ijee.2017.10.0104","url":null,"abstract":": In this research, the mechanical properties of steel fiber reinforced concrete were investigated experimentally and the results compared with analytical models. Hooked end steel fibers of aspect ratio 50 were added at three proportions and compared with plain concrete. The fiber content is varied at 0%, 0.5%, 0.75%, 1% volume of concrete. The water cement ratio used was 0.51. Tests for compressive strength, flexure strength, splitting tensile strength, modulus of elasticity, impact test on cubes and impact test on slabs were conducted to investigate the influence of hooked end steel fibers in concrete. The experimental results for flexure test and impact test on slabs were compared with analytical results. Analytical study was conducted using commercially available finite element software, ABAQUS.","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"os-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128130756","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 : 2017-03-06DOI: 10.21276/ijee.2017.10.0103
S. Bangarumythili, S. Mary, S. Revathi
{"title":"Load Transferring Mechanism of Flexible Shear Connectors","authors":"S. Bangarumythili, S. Mary, S. Revathi","doi":"10.21276/ijee.2017.10.0103","DOIUrl":"https://doi.org/10.21276/ijee.2017.10.0103","url":null,"abstract":"","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134555496","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 : 2017-03-06DOI: 10.21276/IJEE.2017.10.0117
S. Kumari, T. Thandavamoorthy
: High Performance Concrete (HPC) is a concrete which possess most desirable properties during fresh as well as hardened stage. The ingredients which are used for this, contribute most optimally and efficiently to the various properties like compressive strength, split tensile strength, flexural strength as well as durability. Appropriate use of supplementary cementitious materials and super plasticiser gives good results. Usually GGBFS and micro silica which are the industrial by- products are used as supplementary cementitious materials to produce HPC. In this paper, study of effect of steel fibres, GGBFS and micro silica on the mechanical properties of HPC M80 grade was performed. Hooked end steel fibre was used. The dosage of fibre was 1%. Water binder ratio was 0.26. Mix was designed as per Indian Standards IS 10262. The mix proportion obtained was 1:1.25:2.3 and the dosage of super plasticiser was 1% . The compressive strength obtained was 10.5% greater than the target strength.
{"title":"Effect of GGBFS and Micro Silica on the Mechanical Properties of High Performance Concrete with Fibre","authors":"S. Kumari, T. Thandavamoorthy","doi":"10.21276/IJEE.2017.10.0117","DOIUrl":"https://doi.org/10.21276/IJEE.2017.10.0117","url":null,"abstract":": High Performance Concrete (HPC) is a concrete which possess most desirable properties during fresh as well as hardened stage. The ingredients which are used for this, contribute most optimally and efficiently to the various properties like compressive strength, split tensile strength, flexural strength as well as durability. Appropriate use of supplementary cementitious materials and super plasticiser gives good results. Usually GGBFS and micro silica which are the industrial by- products are used as supplementary cementitious materials to produce HPC. In this paper, study of effect of steel fibres, GGBFS and micro silica on the mechanical properties of HPC M80 grade was performed. Hooked end steel fibre was used. The dosage of fibre was 1%. Water binder ratio was 0.26. Mix was designed as per Indian Standards IS 10262. The mix proportion obtained was 1:1.25:2.3 and the dosage of super plasticiser was 1% . The compressive strength obtained was 10.5% greater than the target strength.","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128182636","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 : 2017-03-06DOI: 10.21276/IJEE.2017.10.0121
J. V S, T. J V, SATYAJI RAO Y R, V. R
Climate change is an issue of great concern to a developing country like India. India needs to be much more concerned since its vast population largely depends on climate sensitive sectors like hydrology, agriculture, forestry and fishery for livelihood. In these circumstances a study has been carried to find out the impacts of climate change in Sabari sub-basin which involves rainfall-runoff modeling using PRECIS model data. The daily rainfall-runoff modeling was carried out using ARNO model for a period of 39 years (1970 to 2008). Out of 39 years calibration and validation was carried out for a period of 30 years (1970 to 1999) and 9 years (2000 to 2008) respectively. The Regional Climate Model (RCM) data supplied by PRECIS model which have a grid cell size of 50 km X 50 km and contains three different scenario periods i.) Base line period (1961 to 1990) ii.) Mid Century Period (2021 to 2050) and iii) End century period (2071 to 2098). The observed IMD and predicted RCM downscaled data for the base line period (1960-1990) has been compared and found that there is a huge variation in both the temperature and rainfall measurements. Analysis of RCM data reveals that the temperature is alarmingly increasing during the Mid Century and End Century periods. The futuristic hydrological scenarios have been arrived by incorporating the downscaled RCM data with the calibrated ARNO model. From the analysis it is opined that climate change may pose frequent high peak floods that occurs in a short period of time may alter the landuse/lancover conditions and agricultural patterns in the study area.
气候变化是印度这样的发展中国家非常关注的问题。印度需要更加关注，因为其庞大的人口在很大程度上依赖于水文、农业、林业和渔业等气候敏感部门的生计。在这种情况下，已经开展了一项研究，以找出气候变化对萨巴里子流域的影响，该研究涉及使用PRECIS模型数据进行降雨径流模拟。采用ARNO模型进行了39 a(1970 ~ 2008)的日降雨径流模拟。在39年中，分别进行了30年(1970 - 1999年)和9年(2000 - 2008年)的校准和验证。PRECIS模式提供的区域气候模式(RCM)数据，网格单元尺寸为50 km X 50 km，包含三个不同的情景期。基线期(1961年至1990年)本世纪中期(2021年至2050年)和世纪末(2071年至2098年)。对基线期间(1960-1990年)观测到的IMD和预测的RCM缩减数据进行了比较，发现温度和降雨量测量值都存在巨大变化。对RCM数据的分析表明，在本世纪中叶和世纪末期间，气温正在惊人地上升。通过将缩小的RCM数据与校准的ARNO模型相结合，得出了未来的水文情景。分析认为，气候变化可能导致研究区在短时间内频繁发生的高峰洪水，可能改变研究区的土地利用/覆盖条件和农业模式。
{"title":"Impact of Climate Change on Hydrological Regime in Sabari sub-Basin, Godavari River System, India","authors":"J. V S, T. J V, SATYAJI RAO Y R, V. R","doi":"10.21276/IJEE.2017.10.0121","DOIUrl":"https://doi.org/10.21276/IJEE.2017.10.0121","url":null,"abstract":"Climate change is an issue of great concern to a developing country like India. India needs to be much more concerned since its vast population largely depends on climate sensitive sectors like hydrology, agriculture, forestry and fishery for livelihood. In these circumstances a study has been carried to find out the impacts of climate change in Sabari sub-basin which involves rainfall-runoff modeling using PRECIS model data. The daily rainfall-runoff modeling was carried out using ARNO model for a period of 39 years (1970 to 2008). Out of 39 years calibration and validation was carried out for a period of 30 years (1970 to 1999) and 9 years (2000 to 2008) respectively. The Regional Climate Model (RCM) data supplied by PRECIS model which have a grid cell size of 50 km X 50 km and contains three different scenario periods i.) Base line period (1961 to 1990) ii.) Mid Century Period (2021 to 2050) and iii) End century period (2071 to 2098). The observed IMD and predicted RCM downscaled data for the base line period (1960-1990) has been compared and found that there is a huge variation in both the temperature and rainfall measurements. Analysis of RCM data reveals that the temperature is alarmingly increasing during the Mid Century and End Century periods. The futuristic hydrological scenarios have been arrived by incorporating the downscaled RCM data with the calibrated ARNO model. From the analysis it is opined that climate change may pose frequent high peak floods that occurs in a short period of time may alter the landuse/lancover conditions and agricultural patterns in the study area.","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127287923","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 : 2017-03-06DOI: 10.21276/ijee.2017.10.0116
T. Manuvachari, A. G. Ugarkar, B. Kumar, M. A. Malapur
{"title":"Basalt-Andesite-Dacite-Rhyolite (BADR) Metavolcanic Sequence from the Central Part of Dharwar-Shimoga Greenstone Belt, Western Dharwar Craton","authors":"T. Manuvachari, A. G. Ugarkar, B. Kumar, M. A. Malapur","doi":"10.21276/ijee.2017.10.0116","DOIUrl":"https://doi.org/10.21276/ijee.2017.10.0116","url":null,"abstract":"","PeriodicalId":344962,"journal":{"name":"International journal of Earth Sciences and Engineering","volume":"459 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120879685","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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