HBRC Journal最新文献_第5页

Characterization of rock formation at Toshka fourth depression – Egypt 埃及Toshka第四凹陷地层特征

HBRC Journal Pub Date : 2022-08-02 DOI: 10.1080/16874048.2022.2106063

M. Elmashad, Salwa Yassin, Mona Afifi

{"title":"Characterization of rock formation at Toshka fourth depression – Egypt","authors":"M. Elmashad, Salwa Yassin, Mona Afifi","doi":"10.1080/16874048.2022.2106063","DOIUrl":"https://doi.org/10.1080/16874048.2022.2106063","url":null,"abstract":"ABSTRACT Recently, the Egyptian south valley has been considered as one of the most promising developments for the mega projects such as power stations, roads and bridges. Fresh water channels were extended through to transfer water from Nasser Lake to the irrigated land in the western desert in order to save the groundwater storage for the later usage. Rock formations generally represent a great challenge in civil engineering due to their wide spatial variability, whether vertically or horizontally. This paper presents the results of a geotechnical study that was carried out across the Toshka fourth depression, Egypt. The study comprises a comprehensive investigation programme in the field and complemented with laboratory testing programme to evaluate the physical and mechanical rock properties. The geotechnical investigation included executing boreholes with a depth up to 100 m; core and bulk samples were extracted and recovered. Moreover, an extensive laboratory testing programme was conducted on the samples. Additionally, Rock Mass Rating System was used to identify the rock mass properties, considering the effect of discontinuities planes, layers joint roughness conditions, slaking rate and in addition to the effect of wetting and drying on Rock Mass strength parameters. The results indicated that the geological formation generally composed of limestone intercalated with layers of silty claystone or clayey siltstone. The results of this study cover, among others, rock mass strength properties that should be considered as a design parameters or regarded as guidelines for the design of any future development in the region.","PeriodicalId":31454,"journal":{"name":"HBRC Journal","volume":"18 1","pages":"123 - 139"},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44226323","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}

引用次数: 0

Behavior of Concrete Slabs Reinforced by Different Geosynthetic Materials 不同土工合成材料加固混凝土板的性能

HBRC Journal Pub Date : 2022-07-26 DOI: 10.1080/16874048.2022.2097363

Ahmed M. El-Hanafy, Samiha E. Alharthy, A. Anwar

引用次数: 0

Modeling financial risk contributes to construction projects; case study of expansion food industries 建设项目财务风险建模扩展食品工业的案例研究

HBRC Journal Pub Date : 2022-06-23 DOI: 10.1080/16874048.2022.2086779

Nouran A. Gad, M. Abdel-Monem, K. El-Dash, Mohamed Abdel-Hamid

引用次数: 1

An online system for issuing buildings permits in light of e-government in Egypt 根据埃及的电子政务，一个发放建筑许可的在线系统

HBRC Journal Pub Date : 2022-01-31 DOI: 10.1080/16874048.2021.2019447

M. A. Abdel Wahed, Tarek Saeed Ismail

{"title":"An online system for issuing buildings permits in light of e-government in Egypt","authors":"M. A. Abdel Wahed, Tarek Saeed Ismail","doi":"10.1080/16874048.2021.2019447","DOIUrl":"https://doi.org/10.1080/16874048.2021.2019447","url":null,"abstract":"ABSTRACT A building permit is the green light in housing development projects, without the permit issued from the local authority, no construction can legally take place. The process of issuing buildings permits is complex and faces many problems and difficulties. The current permitting system in Egypt is a traditional manual system, resulting in a set of consequences such as loss of time, the possibility of human error, the possibility of losing permit papers, and other consequences. Therefore, the presence of an electronic online system capable of applying and submitting the permit requirements will be necessary to facilitate the work of the local authorities’ employees, as well as to facilitate the process of obtaining building permits for the citizens. The electronic online permitting system speeds up the building permit process for individuals, contractors, employees, and plan reviewers. This system changes the way governments provide services to the community by speeding the process for the citizens and providing better and more timely information to the local authority’s staff, decision-makers, and city officials. The objective of this paper is to develop a conceptual framework for an electronic online system for issuing building permits in the Egyptian context regarding its laws and regulations to support citizens and local authority’s staff in issuing buildings permits. It also discusses the organizations involved in issuing buildings permits, their responsibilities and the requirements and data needed for the online system.","PeriodicalId":31454,"journal":{"name":"HBRC Journal","volume":"18 1","pages":"53 - 72"},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42309815","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}

引用次数: 1

Facility management of gas turbine power plants using 3D laser scanning 基于三维激光扫描的燃气轮机电厂设备管理

HBRC Journal Pub Date : 2022-01-27 DOI: 10.1080/16874048.2022.2026013

M. Marzouk, N. El-Bendary

{"title":"Facility management of gas turbine power plants using 3D laser scanning","authors":"M. Marzouk, N. El-Bendary","doi":"10.1080/16874048.2022.2026013","DOIUrl":"https://doi.org/10.1080/16874048.2022.2026013","url":null,"abstract":"ABSTRACT Industrial projects are extremely complex in terms of designing, engineering, construction, operation and maintenance. These projects involve extremely specialized activities during operation and maintenance phases. Optimizing the operation and maintenance phases for mega-industrial complexes such costs as power plants, petrochemicals, pharmaceuticals, and oil refineries increases the potential cost saving and maximizes the net profit. Plant maintenance comprises thousands of tasks, hundreds of workers, huge amount of equipment and material highly dependent on plant size. This research proposes a procedure for facility management using 3D laser scanning technologies in gas turbine power plants. High Density Point Cloud (HDPC) is obtained from 3D laser scanning of the power plant to facilitate the process of maintenance. HDPC is converted to regions in Recap application and the Autodesk Revit add-in imports the point cloud to Autodesk Revit and populates all the required maintenance data. This research describes the developed Power Plant Operation and Maintenance Tool (PPOMT) platform and its components to synchronize the data of the power plant with the online workspace information. All equipment information, the type of maintenance and the tasks to be carried out are defined for facility management purpose.","PeriodicalId":31454,"journal":{"name":"HBRC Journal","volume":"18 1","pages":"73 - 83"},"PeriodicalIF":0.0,"publicationDate":"2022-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42785061","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}

引用次数: 0

The impact of physical components of the environment on the sociability of cultural-recreational spaces case study: Rasht cultural complex 环境的物理成分对文化娱乐空间社交性的影响——个案研究：拉什特文化情结

HBRC Journal Pub Date : 2022-01-10 DOI: 10.1080/16874048.2021.2005318

N. Hashemi, Farnaz Emami, Parinaz Abdshahzadeh, Ali Asghar Niaei

{"title":"The impact of physical components of the environment on the sociability of cultural-recreational spaces case study: Rasht cultural complex","authors":"N. Hashemi, Farnaz Emami, Parinaz Abdshahzadeh, Ali Asghar Niaei","doi":"10.1080/16874048.2021.2005318","DOIUrl":"https://doi.org/10.1080/16874048.2021.2005318","url":null,"abstract":"ABSTRACT The focus of the research is to analyze and evaluate the impact of physical space in the environment as a spatial system on the social interactions of users. The role of the physical components of the environment for the sociability of the environment and the desire to work in spaces is examined. In this research, the physical components of the environment as an independent variable that affect the quality of socialization of physical spaces as a dependent variable. To analyze, the physical environment is considered a socio-behavioral place. In this regard, by recognizing the types of public spaces as a physical environment and recognizing their qualities and functions, we reach the necessity of having cultural-recreational spaces as a platform for the formation of social life. The present research descriptively and analytically examines the sociability of the physical environment as a necessary spatial quality in cultural-recreational spaces, and by recognizing the physical components and sociability activity, analyzes these components in the present case. Data collection was done through questionnaires, interviews, and field observations. The final part of this research shows that security, as the most important environmental quality that results from the impact of components such as confinement and lighting and control and monitoring and visual access, has a direct impact on the sociability of the analyzed sample.","PeriodicalId":31454,"journal":{"name":"HBRC Journal","volume":"18 1","pages":"1 - 30"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48402120","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}

引用次数: 0

The interaction of BIM And FM through sport projects life cycle (case study: Sailia training site in Qatar) BIM和FM在体育项目生命周期中的互动（案例研究：卡塔尔赛利亚训练场）

HBRC Journal Pub Date : 2022-01-10 DOI: 10.1080/16874048.2021.2018170

Hayam M Omayer, Omar A Selim

{"title":"The interaction of BIM And FM through sport projects life cycle (case study: Sailia training site in Qatar)","authors":"Hayam M Omayer, Omar A Selim","doi":"10.1080/16874048.2021.2018170","DOIUrl":"https://doi.org/10.1080/16874048.2021.2018170","url":null,"abstract":"ABSTRACT ‘It is all about the data’. In this context, ‘data’ refers to the massive amounts of information facility managers require for their work, including the frameworks that serve as the basis for successful and productive facility management (FM). The paper discusses building information modeling (BIM) and how this can be applied to facility management to address current industry challenges to BIM & FM Interaction. The research is dependent on transforming the interaction of more specialization in engineering by linking the different disciplines in a single project and using new technologies in a case study project. This construction project is concerned with the role of BIM and construction operations building information exchange (COBie) in sports facilities and operations and maintenance (O & M) information to view the benefits of BIM-based on the experience of the Arab world in the field of construction. The research presents a case study for the Technical Masterclass, Delivering the BIM/COBie & IFC in Revit according to the NBIMS-US COBie standard to support the facility’s management. The project is FIFA training facilities, Sailia Training Site. This case study project examines the role of BIM and COBie in facility and O & M information to demonstrate the benefits of BIM. The idea of BIM for facility management is implemented through COBie as a data transfer method.","PeriodicalId":31454,"journal":{"name":"HBRC Journal","volume":"18 1","pages":"31 - 51"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43793671","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}

引用次数: 1

Calcination process and kinetic carbonation effect on the hydrated and anhydrate phases of the OPC matrix at early age of hydration 煅烧过程和动力学碳酸化对OPC基体早期水化和硬石膏相的影响

HBRC Journal Pub Date : 2021-01-01 DOI: 10.1080/16874048.2021.1944735

M. Hafez, M. Kassab, S. Taha

{"title":"Calcination process and kinetic carbonation effect on the hydrated and anhydrate phases of the OPC matrix at early age of hydration","authors":"M. Hafez, M. Kassab, S. Taha","doi":"10.1080/16874048.2021.1944735","DOIUrl":"https://doi.org/10.1080/16874048.2021.1944735","url":null,"abstract":"ABSTRACT This study aims to improve the understanding of the effect of both calcination temperature and the carbonation process on cement pastes by analyzing the Fourier-transform infrared spectroscopy (FTIR) principal vibration modes. In this regard, six samples of cement pastes, identified as (CS1, CS2, CS3, CS4, CS5 and CS6), mixed with white sugar with different concentrations (X = 0, 0.2, 0.4, 0.6, 0.8, and 1.1 %), respectively, were prepared. These blended cement samples were heated (calcined) at a temperature of about 600°C. Moreover, an additional sugar-free sample tagged as CS0 was prepared and cured at room temperature for 7 days. Afterward, these samples were subjected to FTIR spectroscopy and X-ray diffraction to investigate the effect of the calcination and the carbonation process on the principal mode of vibrations and the microstructure of the ordinary Portland cement (OPC) matrix as well. The characteristics of the FTIR principal modes of vibrations were investigated. Besides, the relaxation time and the rotational energy barrier were calculated for different sugar concentrations. This study revealed that the kinetic reaction of the carbon contained in the different samples with the C3S, C2S, C–S–H and CH phases leads to the formation of calcium carbonate CaCO3, where the rate of formation depends upon the carbonation rate of samples. The critical variation for the relaxation time and rotational energy barrier clearly appeared at X = 0.6%. Moreover, the kinetic carbonation of both clinker phases and the hydrated phases in the OPC matrix system mainly depends upon the rate of the polymerization of the silicate group inside the matrix of OPC.","PeriodicalId":31454,"journal":{"name":"HBRC Journal","volume":"17 1","pages":"389 - 406"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/16874048.2021.1944735","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42511361","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}

引用次数: 2

Parametric study of twin tunnel under seismic loads for Cairo Metro Line No. 4 开罗地铁4号线双隧道地震荷载参数研究

HBRC Journal Pub Date : 2021-01-01 DOI: 10.1080/16874048.2021.1907962

H. Kamal, M. Hussein, A. Akl

{"title":"Parametric study of twin tunnel under seismic loads for Cairo Metro Line No. 4","authors":"H. Kamal, M. Hussein, A. Akl","doi":"10.1080/16874048.2021.1907962","DOIUrl":"https://doi.org/10.1080/16874048.2021.1907962","url":null,"abstract":"ABSTRACT The damage of tunnel induced by intense earthquake is obviously important. Thus, more attention has been paid to the tunnel destruction induced by earthquake. So far, there are few studies conducted on the influence of earthquake dynamic loads on horizontal twin tunnels. In this research, a systematic analysis of horizontal twin tunnels of Cairo Metro Line No. 4 was performed using finite element model by the commercial software PLAXIS 2D and under static and earthquake dynamic loads using the Dahsour Earthquake 1992 time real history. Both static and dynamic analyses in this research have taken into account the effect of the soil structure interaction on the static and dynamic performance of horizontal twin tunnels. Also, a parametric study had been performed on the horizontal twin tunnels of Cairo Metro Line No. 4 under different parameters, which included the tunnel’s depth (d), the distance between twin tunnels (S), and the surrounding soil stiffness (E). Results showed that both static and dynamic analysis are expected to be governed by soil structure interaction. Also, the studied parameters are very important in tunnel design under static and dynamic loads, especially the distance between twin tunnel, where these types of twin tunnels were excavated by TBM machine.","PeriodicalId":31454,"journal":{"name":"HBRC Journal","volume":"17 1","pages":"137 - 156"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/16874048.2021.1907962","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47160451","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}

引用次数: 4

Punching strength of conventional reinforced concrete flat slabs 常规钢筋混凝土平板的冲孔强度

HBRC Journal Pub Date : 2021-01-01 DOI: 10.1080/16874048.2021.1901401

M. Issa, E. Ismail

引用次数: 3