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Journal of the South African Institution of Civil Engineering最新文献

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The liquefaction potential of the upper quaternary sands of the Cape Flats, Western Cape, South Africa 南非西开普省开普平原上第四纪砂的液化潜力
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/v62n2a3
N. Fouché
{"title":"The liquefaction potential of the upper quaternary sands of the Cape Flats, Western Cape, South Africa","authors":"N. Fouché","doi":"10.17159/2309-8775/2020/v62n2a3","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/v62n2a3","url":null,"abstract":"Nanine Fouché graduated in 2008 with a Bachelor’s degree in Earth Science from Stellenbosch University. Thereafter she continued her studies and completed a Post-Graduate Diploma and MSc Eng in Geotechnical Engineering. She gained valuable experience as an engineering geologist at Aurecon South Africa, undertaking geotechnical and foundation investigations for a wide range of projects. Her passion for teaching and the academics led her to a career in teaching and research in the Civil Engineering Department at Stellenbosch University. She currently teaches geotechnical engineering courses and provides support to geotechnical research students, while also completing her PhD.","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"62 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67483015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantifying the economic benefits of gauge changes on the South African core railway network 量化南非核心铁路网轨距变化的经济效益
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/v62n3a3
C P Demmerez de Charmoy, P. Gräbe
{"title":"Quantifying the economic benefits of gauge changes on the South African core railway network","authors":"C P Demmerez de Charmoy, P. Gräbe","doi":"10.17159/2309-8775/2020/v62n3a3","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/v62n3a3","url":null,"abstract":"PROF HANNES GRÄBE (Pr Eng, FSAICE), is a civil engineer with experience in the fields of track technology, geotechnology, advanced laboratory testing, field investigations, maintenance models and numerical analysis of track structures. He is Associate Professor: Transnet Freight Rail Chair in Railway Engineering at the University of Pretoria, where he lectures underand post-graduate courses in railway engineering. He is also responsible for railway research, as well as for continuing professional development in the form of short courses presented to industry. He holds a PhD degree from the University of Southampton (UK) and is a Fellow of the South African Institution of Civil Engineering (SAICE) and is registered with the Engineering Council of South Africa (ECSA) as a professional engineer.","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"62 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67482626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterisation of heritage cementing materials for restoration purposes: A review 文物修复用胶结材料的特性:综述
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/v62n1a2
M. Loke, K. Pallav, R. Haldenwang
{"title":"Characterisation of heritage cementing materials for restoration purposes: A review","authors":"M. Loke, K. Pallav, R. Haldenwang","doi":"10.17159/2309-8775/2020/v62n1a2","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/v62n1a2","url":null,"abstract":"MAPHOLE E LOKE is a Candidate Engineering Technologist and a SAICE student member. She obtained a Diploma in Civil Engineering at Lerotholi Polytechnic (Lesotho) in 2014, a BTech from the Cape Peninsula University of Technology in 2016, and is currently pursuing a Master’s degree in Civil Engineering, working on heritage buildings. She worked as a geotechnical laboratory technician, water and sanitation technician, construction supervisor and quantity surveyor for the Lesotho Lowlands Bulk Water Supply Scheme.","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67482895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Mechanical behaviour of semi-rigid connections coupling two concrete segmental linings 两节段混凝土衬砌半刚性连接的力学性能
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/v62n2a1
P. Zhai, P. Xu
{"title":"Mechanical behaviour of semi-rigid connections coupling two concrete segmental linings","authors":"P. Zhai, P. Xu","doi":"10.17159/2309-8775/2020/v62n2a1","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/v62n2a1","url":null,"abstract":"INTRoduCTIoN The process of subway construction is undergoing rapid developments in China. Shield-driven tunnels are widely used in soft ground because of their flexibility, cost-effectiveness, and minimal impact on ground traffic and surface structures. Segmental precast concrete linings (see Figure 1) connected by steel bolts are commonly used in shield-driven tunnels. These are one of the single most important elements in the total cost of tunnelling, representing 15–40% of the total cost (Iftimie 1994). Segment joint opening is a common problem in shield tunnel operations, and is Mechanical behaviour of semi-rigid connections coupling two concrete segmental linings","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"62 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67482925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geotechnical characterisation and back analysis of a landslide in marl deposit: A case study of Algiers Sahel (coast), Algeria 泥岩沉积物中滑坡的岩土特征和反分析:阿尔及利亚阿尔及尔萨赫勒(海岸)的案例研究
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/V62N4A1
M. Filali, A. Nechnech, J. D. Rosa, H. Gadouri, B. Meziani
{"title":"Geotechnical characterisation and back analysis of a landslide in marl deposit: A case study of Algiers Sahel (coast), Algeria","authors":"M. Filali, A. Nechnech, J. D. Rosa, H. Gadouri, B. Meziani","doi":"10.17159/2309-8775/2020/V62N4A1","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/V62N4A1","url":null,"abstract":"MIRA FILALI is presently a PhD student in the Civil Engineering Faculty and in the Environment, Water, Geomechanics and Structures Laboratory at the University of Sciences and Technology Houari Boumediene, Algiers. She is also an engineer at the National Polytechnic School of Algiers (ENPA), and a teacher and researcher in the Earth Sciences Department at the Djilali Bounaama University, Khemis Miliana. Her research interests focus mainly on landslides in clayey soil.","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"7 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67482705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Factors that keep engineers committed to their organisations: A study of south African knowledge workers 让工程师忠于组织的因素:一项对南非知识工作者的研究
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/v62n1a5
C. L. Blersch, B. Shrand, L. Ronnie
{"title":"Factors that keep engineers committed to their organisations: A study of south African knowledge workers","authors":"C. L. Blersch, B. Shrand, L. Ronnie","doi":"10.17159/2309-8775/2020/v62n1a5","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/v62n1a5","url":null,"abstract":"","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"62 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67482909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The cost-effectiveness of water augmentation and management: Assessing the Unit Reference Value 增水和管理的成本效益:评估单位参考价值
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/v62n2a5
R. Bester, J. Blignaut, P. van Niekerk
{"title":"The cost-effectiveness of water augmentation and management: Assessing the Unit Reference Value","authors":"R. Bester, J. Blignaut, P. van Niekerk","doi":"10.17159/2309-8775/2020/v62n2a5","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/v62n2a5","url":null,"abstract":"JAMES BLIGNAUT is a natural and environmental resource economist attached to both the School of Public Leadership, Stellenbosch, and the South African Environmental Observation Network (SAEON). He focuses on the economics of the restoration of degraded landscapes under the motto: The economics of restoration and the restoration of economics. He is especially focused on the advancement of regenerative agriculture and, within that context, proper resource use and allocation inclusive of the economic benefits of restoration.","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"62 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67483080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The interception capabilities of slotted drains as pavement surface drainage systems 槽形排水渠作为路面排水系统的截流能力
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/V62N4A2
B. Vuuren
{"title":"The interception capabilities of slotted drains as pavement surface drainage systems","authors":"B. Vuuren","doi":"10.17159/2309-8775/2020/V62N4A2","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/V62N4A2","url":null,"abstract":"The following two slotted drain installation scenarios were reviewed in this paper: a slotted drain operating individually without a median barrier and a slotted drain operating with an adjacent barrier installed along the longitudinal length of the drain. The interception capability of the two installation scenarios was experimentally reviewed and compared while imitating various conditions typically expected on South African pavements. The applied sheet flow, slotted inlet sizes and pavement slopes (longitudinal and cross slopes) were varied throughout the experiment. Interception efficiencies of the slotted inlets were experimentally calculated as a ratio of total intercepted sheet flow to the total sheet flow applied to the pavement layouts. The sheet flow applied during the experiment was analysed to estimate the rainfall intensities and flow depths that can typically occur on the different pavements for which the interception capability of the slotted inlets was reviewed. It was estimated that rainfall intensities of more than 1 000 mm/hr and flow depths higherthan 10 mm were imitated during the experiment. More than 98% of the maximum applied sheet flow of approximately 3.0 £/s/m was intercepted by the 30 mm slotted inlets regardless of the pavement slope values and type of slotted drain layout. The conclusion reached was that both these slotted drain installation scenarios operating in practice for the conditions tested would have the capability to sufficiently remove the surface water to promote road safety during wet pavement conditions.","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"62 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67482739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Water meter replacement and its impact on water consumption, utility revenue and payback periods 更换水表及其对用水量、公用事业收入和投资回收期的影响
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2020-01-01 DOI: 10.17159/2309-8775/2020/v62n3a1
M. Brinkley, A. Ilemobade, M. Ncube
{"title":"Water meter replacement and its impact on water consumption, utility revenue and payback periods","authors":"M. Brinkley, A. Ilemobade, M. Ncube","doi":"10.17159/2309-8775/2020/v62n3a1","DOIUrl":"https://doi.org/10.17159/2309-8775/2020/v62n3a1","url":null,"abstract":"MEGHAN BRINKLEY (MSc, PrEng, PMP, MSAICE) currently works for SMEC South Africa (Pty) Ltd and has over 14 years of experience in the Engineering and Project Management fields. She is currently involved with a number of water demand management and water metering projects. In these projects, her focus is on data capturing and project management to ensure accurate records and trend analysis for clients. This article emanated from her MSc research project at the School of Civil and Environmental Engineering, University of the Witwatersrand, Johannesburg.","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":"11 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67482616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Incipient motion of Armorflex articulating concrete blocks on steep slopes Armorflex铰接混凝土块在陡坡上的初始运动
IF 0.4 4区 工程技术
Journal of the South African Institution of Civil Engineering Pub Date : 2019-12-01 DOI: 10.17159/2309-8775/2021/v63n3a2
Kobus Delport
{"title":"Incipient motion of Armorflex articulating concrete blocks on steep slopes","authors":"Kobus Delport","doi":"10.17159/2309-8775/2021/v63n3a2","DOIUrl":"https://doi.org/10.17159/2309-8775/2021/v63n3a2","url":null,"abstract":"Armorflex is an articulating concrete block erosion protection measure that has been used as an alternative to riprap for many years. Even though extensive research and hydraulic testing have been conducted on Armorflex, the principal constraint on the use of concrete blocks has been the lack of information on prototype performance. Furthermore, there are no standards for Armorflex or articulating concrete block revetments in the South African National Standards, and design guidelines from Armorflex manufacturers are insufficient. The aim of this study was to improve the understanding of the critical flow conditions under which Armorflex blocks are lifted and removed by flowing water in open channel flow applications. Scaled laboratory tests were conducted on Armorflex 140 and Armorflex 180 blocks. Liu's theory of 1957 is applied in an attempt to define the point where block movement is initiated.","PeriodicalId":54762,"journal":{"name":"Journal of the South African Institution of Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47034556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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