scholarly journals SAFETY OF TECHNOLOGICAL PROJECTS USING MULTI-CRITERIA DECISION MAKING METHODS / DARBUOTOJŲ SAUGOS STATYBVIETĖSE SPRENDINIŲ DAUGIATIKSLIS VERTINIMAS

2011 ◽  
Vol 17 (2) ◽  
pp. 177-183 ◽  
Author(s):  
Titas Dėjus

The article analyzes a construction technology project as a safety standard document for a construction site and describes the application of mathematical methods at the stages of construction and design. Due to the fact that the construction project consists of (safety point of view) the site plan and technological cards (notably these documents indicate safety design solutions), the indicators making up a comparable set of indicators to evaluate the site plan, technological cards and the entire project may vary and be diverse. Practice shows that the construction technology project or its parts thereof are to be assessed using 5 to 7 parameters, as in case of a larger quantity of indicators, the significance of each indicator becomes relatively lower and has effect on the priorities of line formation. To ensure the safety of workers on construction sites, when preparing construction technology projects, the application of experimental design is proposed, thus starting the evaluation of the quality of technological solutions to construction projects in terms of safety employing multicriteria mathematical methods. Santrauka Šiame straipsnyje analizuojamos statybos darbų technologijos projekto, kaip darbuotojų saugos norminio dokumento, rengimo sąlygos ir aplinkybės bei matematinių metodų taikymo galimybės rengiant saugos darbe sprendinius statybos paruošimo ir projektavimo etape. Kadangi statybos darbų technologijos projektas susideda (saugos darbe požiūriu) iš statybvietės plano ir technologinių kortelių (būtent šiuose dokumentuose užfiksuojami saugos darbe projektiniai sprendiniai), tai ir rodikliai, sudarantys lyginamų rodiklių aibę ir vertinantys statybvietes planą, technologines korteles ir visą projektą, gali būti labai įvairūs ir skirtingi. Praktika rodo, kad statybos darbų technologijos projektas ar jo dalys vertintini pagal 5–7 rodiklius, nes, esant didesniam rodiklių skaičiui, kiekvieno rodiklio reikšmingumas santykinai mažėja ir tai turi įtakos prioritetų eilutės formavimui. Siekiant užtikrinti darbuotojų saugą statybvietėse siūloma rengiant statybos darbų technologijos projektus taikyti variantinį projektavimą, pradėti vertinti statybos darbų technologinių projektų sprendinių kokybę saugos darbe požiūriu ir tam taikyti daugiatikslius matematinius metodus.

The article substantiates the feasibility of developing and implementing a risk management plan for the implementation of construction projects in the conditions of compacted construction on the basis of risk identification at the stages of development of projects of organization and construction technology. The risk management algorithm is given. Design of construction of structures in conditions of compacted development usually requires consideration of many factors (risks) that affect the safety and quality of construction, but, as a rule, the most significant risks arise in the construction of the deepened part of the structure - "zero cycle". With this in mind, a Risk Management Plan for the construction of the "zero cycle" is proposed and emphasis is placed on the need to develop a strategy for the protection of the surrounding area and buildings. The conditions for achieving optimal efficiency of the Risk Management Plan are determined.


2021 ◽  
Vol 263 ◽  
pp. 04005
Author(s):  
Alexander Konikov ◽  
Nikolay Garyaev

The work examines new IT - solutions for monitoring the state of construction projects. Two areas are investigated: the first - monitoring of high-rise buildings and other large-scale objects, the second - monitoring of construction sites located in remote, hard-to-reach areas. The possibilities of integrated use of the following information technologies are considered: Machine Vision, Wireless Sensor Network WSN, Edge Computing. Other new IT solutions are also in the field of view of the study: Cloud Computing, the Internet of Things, etc. To improve the quality of monitoring, it is proposed to use advances in other subject areas - in the field of unmanned aerial vehicles (drones) and in the space area (geostationary satellite communications). The idea of using drones and artificial earth satellites to monitor objects (particularly buildings) is not new in itself, but the use of these devices as part of the proposed set of IT technologies allows to bring solutions in the construction industry to a qualitatively higher level.


2017 ◽  
Vol 1 (3) ◽  
Author(s):  
Zhang Wei

At the present stage, China's construction industry has achieved rapid development with the rapid development of our society and economy. In the construction of our country's construction industry, scientific and rational project construction management can not only effectively improve the safety quality of construction workers, strengthen the personnel management of construction workers, effectively reduce the accidents of construction projects, but also can save the cost of construction projects and improve the economic efficiency of construction enterprises to the greatest extent. In view of this, this paper first analyzes the existing problems in the management of industrial and civil construction site and puts forward corresponding solutions.


2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mohammad Hashim Ibrahimkhil ◽  
Laith Hadidi

PurposeThe aim of this paper is to assess the safety level of construction sites in Afghanistan following the US Army Corps of Engineers (USACE) safety practices and compare this with other construction sites in Afghanistan that follow local government safety guidelines. The USACE oversees and funds many infrastructure projects in Afghanistan, and these projects are supposed to follow the same standards implemented in the USA, including safety standards. The local government of Afghanistan also funds infrastructure projects in Afghanistan; however, these do not follow USACE best practices. This research explores the question of whether the USACE standards provide a safer construction site. The effect of the USACE standards on safety practices in construction projects is also investigated in the Afghanistan construction industry.Design/methodology/approachA literature review and other safety checklists were used to develop a safety checklist containing 104 items (questions) in 17 categories. Subsequently, the checklist was used to assess the safety performance of 57 construction projects (25 USACE projects, and 32 governmental projects). Utilizing quantitative analysis, the Spearman rank correlation coefficient (Rho) and Mann–Whitney tests were carried out for correlation and statistical disparity between USACE and governmental projects.FindingsThe safety performance level of Afghan government projects was found to be poor in relation to other developing countries, while in USACE projects it was excellent. In addition, fire prevention, safety administration, PPE, heavy equipment, and handling and storage of materials for all types of contractors were the most overlooked aspects of Afghan Government projects.Practical implicationsThe findings clearly demonstrate the deficiencies in construction sites observed during this study and also support the adoption of USACE standards in Afghanistan projects.Originality/valueTo the best of the authors’ knowledge, this study is the first to investigate the safety of construction sites in Afghanistan. The study also demonstrates the benefits of adopting international standards (USACE) to improve the safety of construction sites in a developing country such as Afghanistan. The findings provide evidence of the safety of the Afghanistan construction industry compared to other developing countries. These findings will contribute to the Afghan Government's efforts to track injury statistics.


2011 ◽  
Vol 94-96 ◽  
pp. 2169-2174
Author(s):  
Hong Zhang

This paper describes a survey of site safety organization in construction sites. It explains the principle of a successful safety organization and system for Construction Company based in Cheng Du, Si Chuan. Most employees of the company and some of the subcontractors took part in the survey more than 10 construction projects. Total, 365 valid records were obtained from the construction sites. The results of the survey provide reference to project managers and construction safety officers. Last, analysis and summary are given in this paper.


2021 ◽  
Vol 6 (2) ◽  
pp. 21
Author(s):  
Kleopatra Petroutsatou ◽  
Nikolaos Apostolidis ◽  
Athanasia Zarkada ◽  
Aneta Ntokou

The area of dynamic planning of construction sites is unexplored. Although there is a large amount of scientific interest in the literature in dynamic planning of construction site layouts, with different methodologies developed, studies on construction site relocation do not exist. The purpose of this study is to cover this gap in the literature and contribute to the body of knowledge by presenting for the first time a dynamic planning of a construction site and its importance in linear construction projects and to validate this methodology through real case studies. The decisive variables that determine the appropriate site locations and the costs that arise from these choices are analyzed. The choice that maximizes the production rate of the construction site and thus minimizes the costs is further investigated. An algorithm has also been developed that estimates the cost of transportation of the equipment used in the project and thus enables the investigation of the “ideal” location that minimizes this cost. The “ideal” site location is examined according to the time schedule of the project at time intervals that are determined by the work progress. The optimization algorithm aims to minimize the cost that derives from non-productive activities. The validity of the proposed model is tested in four motorway projects. A sensitivity analysis concerning different sequences in the construction methods reveals remarkable changes in cost fluctuations depending on project size. The outcomes show that for the second, third, and fourth projects, dynamic planning is demanded, and the profit gained ranges from 1 to 1.5% of total budget cost. Financing expenses could be covered by this profit. The case studies presented are derived from linear infrastructure projects that are more sensitive to this approach because of their size and their budget that both affect the results.


Author(s):  
Reneiloe Malomane ◽  
Innocent Musonda ◽  
Chioma Sylvia Okoro

The fourth industrial revolution (4iR) technologies offer an opportunity for the construction industry to improve health and safety (H&S) compliance. Therefore, implementing the technologies is of top priority to improve the endless H&S incidents in construction projects, which lead to poor quality of work, late project delivery, and increased labour injury claims. Central to improving the nature of work and other industrial processes, the 4iR technologies have emerged. Concurrent with this trend is the importance of 4iR technologies in enhancing health and safety performance on construction sites. However, the implementation of 4iR technologies in the construction industry is faced with various challenges. Therefore, this paper reports on a study aimed at examining the challenges associated with implementing 4iR technologies in the construction sector in South Africa towards effective management of H&S. The study followed a systematic literature review, data collection using a questionnaire survey and thereafter, descriptive, and inferential analyses were conducted. The findings revealed that the implementation of 4iR technologies is challenged by a lack of adequate relevant skills, the unavailability of training capacities, expensive technologies, and negative perceptions such as fear of job loss by industry professionals. The findings are essential for the advancement of H&S research and implementation. In addition, the findings are important to industry decision-makers in order to elevate their awareness and promote the use of 4iR technologies to manage construction activities. The study implications include the need for the construction industry to collaborate with higher education institutions to conduct research and include 4iR in the curriculum.


Author(s):  
Rodrigo Gabriel Avelino de Queiroz Pessoa ◽  
Ariane da Silva Cardoso ◽  
Thayse Dayse Delmiro ◽  
Emilia Rahnemay Kohlman Rabbani

The objective of this study is to compare the carbon dioxide (CO2) emissions from materials used in the execution of internal building masonry for construction projects that use plaster blocks and those using ceramic bricks. A total of 20 projects in the city of Recife, Brazil, were analyzed, all of them belonging to a large construction company operating in the Northeast region. The Greenhouse Gas (GHG) emissions were estimated using indexes found in the literature and calculated based on the Energy Life Cycle Assessment (ELCA). The emissions from the transport of materials to the construction site were calculated based on the driving distances between the suppliers and the building sites, taking into account the fuel consumption of the transport vehicles. The construction sites using plaster blocks for the internal masonry seals obtained an average indicator of 19.21 kgCO2/m² of constructed area compared to 33.86 kgCO2/m² from those using ceramic bricks. Construction sites using plaster blocks for internal masonry had a 43.26% reduction in GHG emissions and there was a strong correlation between costs due to the execution of activities and material emissions.


2018 ◽  
Vol 2 (3) ◽  
Author(s):  
Shicai Zhang ◽  
Jinwei Zhang ◽  
Xijie Yang ◽  
Lihua Zhao ◽  
Chenghai Zhao

In recent years, China's economic level has made rapid progress. The construction industry occupies a large proportion in the overall economy, and people pay more and more attention to the construction of various projects. The quality of construction projects is directly related to the safety of people's lives and property, which puts forward higher and higher requirements for the construction technology level. As we all know, road subgrade and bridge engineering have certain complexity, and construction takes time and construction environment is bad. In recent years, with the increase in the number of relevant projects, more and more problems have emerged. This article analyzes the construction technology of road subgrade and bridge engineering, focuses on the key technologies in construction, and makes the project construction as much as possible to meet the needs of human production and living.


Author(s):  
Yafei Sun ◽  
Chenxi Zhang ◽  
Xinhe Wang ◽  
Shujuan Yuan ◽  
Guixin Zhu

HVAC is a part of building equipment. The quality of HVAC engineering in buildings is directly related to whether buildings can be directly put into operation. Based on the importance of HVAC construction, we must master the relevant construction technology and analyze the difficulties in the construction, and ensure the overall level of the HVAC construction as far as possible. This article analyzes the difficult points of construction HVAC construction, focuses on the key countermeasures to deal with these problems, and provides a quality assurance for the construction of HVAC projects in China's construction projects.


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