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Motion-based analysis for construction workers using biomechanical methods

Xincong YANG, Yantao YU, Heng LI, Xiaochun LUO, Fenglai WANG

《工程管理前沿（英文）》 2017年 第4卷 第1期   页码 84-91 doi: 10.15302/J-FEM-2017004

摘要： Sustaining awkward postures and overexertion are common factors in construction industry that result in work-related injuries of workers. To address there safety and health issues, conventional observational methods on the external causes are tedious and subjective, while the direct measurement on the internal causes is intrusive leading to productivity reduction. Therefore, it is essential to construct an effective approach that maps the external and internal causes to realize the non-intrusive identification of safety and health risks. This research proposes a theoretical method to analyze the postures tracked by videos with biomechanical models. Through the biomechanical skeleton representation of human body, the workload and joint torques are rapidly and accurately evaluated based on the rotation angles of joints. The method is then demonstrated by two case studies about (1) plastering and (2) carrying. The experiment results illustrate the changing intramuscular torques across the construction activities in essence, validating the proposed approach to be effective in theory.

关键词： biomechanical method     motion-based analysis     construction worker     muscular torques     workload    

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Occupational risk of exposure to methicillin-resistant (MRSA) and the quality of infection hygiene in nursing homes

《环境科学与工程前沿（英文）》 2021年 第15卷 第3期 doi: 10.1007/s11783-020-1333-y

摘要：

• Staff members were not colonised with MRSA.

关键词： Antibiotic resistance     Airborne MRSA     Bioaerosols     Healthcare-associated infections     Healthcare worker     Occupational health    

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Is servitization of construction the inevitable choice of Internet Plus construction?

Hongwei WANG, Dian LIU

《工程管理前沿（英文）》 2017年 第4卷 第2期   页码 229-230 doi: 10.15302/J-FEM-2017104

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Analyzing sustainability of construction equipment in the state of California

Hakob AVETISYAN, Miroslaw SKIBNIEWSKI, Mohammad MOZAFFARPOUR

《工程管理前沿（英文）》 2017年 第4卷 第2期   页码 138-145 doi: 10.15302/J-FEM-2017013

摘要： Construction equipment encompasses highly polluting machines adversely affecting the environment. Management tools are necessary for sustainability assessment of construction equipment fleets to allow contractors to reduce their emissions and comply with local or federal regulations. In addition to management tools, there is a need for a metrics that will allow companies to accurately assess the sustainability of their construction equipment fleets. The State of California USA is adopting innovative approaches to reduce adverse impact of humans on the environment. Once successfully implemented, the chances are that such practices attract other states to adopt similar approaches. This paper presents an evaluation of construction equipment fleets and data analysis. When measured and recorded, such results can be used along with decision-support tools for selection and utilization of construction equipment. The metrics for construction equipment evaluation as well as the tool for sustainable decision-making are developed based on readily available data from manufacturers or maintenance shops without a need for additional effort by contractors or government agencies for their adoption. The metrics developed and the decision support tool incorporate logical strategies of supply chain management for optimal selection of construction equipment for construction site while taking into account the availability, cost, and mobilization related constraints. The metrics and the model can benefit both the government agencies responsible for inspection of fleets and owners of construction companies in their decision-making processes related to environmental sustainability.

关键词： Construction equipment     greenhouse gas emissions     sustainability index     sustainable construction    

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A review of metro construction in China: Organization, market, cost, safety and schedule

Lieyun DING, Jie XU

《工程管理前沿（英文）》 2017年 第4卷 第1期   页码 4-19 doi: 10.15302/J-FEM-2017015

摘要： China is now in an era of large-scale metro construction. This paper reviews the nature of Chinese metro engineering with a specific focus on its organization and market mode, cost structure, safety control and schedule management. Then, an examination on recent research in metro engineering of the National Natural Science Foundation of China (NSFC) is also conducted, which indicates that information and automation based technologies are increasingly used in practice.

关键词： metro engineering     construction status     construction challenges     NSFC    

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Named entity recognition for Chinese construction documents based on conditional random field

《工程管理前沿（英文）》 doi: 10.1007/s42524-021-0179-8

摘要： Named entity recognition (NER) is essential in many natural language processing (NLP) tasks such as information extraction and document classification. A construction document usually contains critical named entities, and an effective NER method can provide a solid foundation for downstream applications to improve construction management efficiency. This study presents a NER method for Chinese construction documents based on conditional random field (CRF), including a corpus design pipeline and a CRF model. The corpus design pipeline identifies typical NER tasks in construction management, enables word-based tokenization, and controls the annotation consistency with a newly designed annotating specification. The CRF model engineers nine transformation features and seven classes of state features, covering the impacts of word position, part-of-speech (POS), and word/character states within the context. The F1-measure on a labeled construction data set is 87.9%. Furthermore, as more domain knowledge features are infused, the marginal performance improvement of including POS information will decrease, leading to a promising research direction of POS customization to improve NLP performance with limited data.

关键词： NER     NLP     Chinese language     construction document    

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Socialized care services for the aged population: System construction and support measures

《工程管理前沿（英文）》 doi: 10.1007/s42524-022-0208-2

摘要： Given the aging society, an increase in social demand, information- and communication technology-driven culture, and government policy support emerges to enable the development of the socialized care services system for the aged (SCSSA). The development of the SCSSA would be a significant step toward addressing China’s aging population. However, the construction of the SCSSA challenges the theories and methods of traditional elderly care service system construction. Specifically, the implementation path for such elderly care service policies is unclear, the necessary technological support is insufficient, and the mechanism for integrating intelligent information technology remains underexplored. Thus, this paper focuses on the needs of the elderly, grounded in the context of the changing elderly care service policies in China, and proposes a research paradigm that integrates system construction and support measure embedding. We then construct the original SCSSA, which includes “material + spirit + medical treatment + healthcare” and propose a method of optimization and iteration. Finally, we build the research framework of systematic support measures from the perspectives of policy reconstruction, institutional embeddedness, and technical support. Our work provides theoretical support and practical guidance for the construction and dynamic optimization of the SCSSA, thus making a significant contribution that will help China effectively cope with its aging society.

关键词： socialized     care service for the elderly     system construction     support measure    

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Situational Awareness in Construction and Facility Management

Burcu Akinci

《工程管理前沿（英文）》 2014年 第1卷 第3期   页码 283-289 doi: 10.15302/J-FEM-2014037

摘要： Engineers and managers involved in construction and facility/infrastructure operations need situational awareness about the as-is conditions when making daily decisions and developing short- and long-term plans. Yet, currently situational awareness of engineers is often challenged due to missing data and the available data not being in a format that is easily accessible and actionable. Advances in reality capture technologies, such as 3-dimensional (3D) imaging, in-situ sensing, equipment on-board instrumentation and electronic tagging, streamline the capturing of the as-is conditions on job sites. The data collected from these technologies, integrated with building information models depicting the as-planned conditions, can help in creating and storing the history of as-is conditions of a facility to support a variety of decisions that engineers and managers need to make. While the opportunities associated with integrating building information models and data capture technologies are compelling, several challenges need to be addressed through research for effective usage of these technologies. Such challenges include assessing the accuracy of the data collected at the field, developing and evaluating data processing and data fusion approaches, formalizing integrated representation of building information models and sensor and other relevant data, and investigating and developing approaches for analyzing and visualizing such integrated information models. This paper provides examples of recent research studies done at the Civil and Environmental Engineering Department at Carnegie Mellon University that demonstrate opportunities associated with integrating building information models and sensor information for facility operations.

关键词： building information models (BIM)     sensors     facility operations and management     construction management     situational awareness    

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Risks of modular integrated construction: A review and future research directions

Ibrahim Yahaya WUNI, Geoffrey Qiping SHEN, Bon-Gang HWANG

《工程管理前沿（英文）》 2020年 第7卷 第1期   页码 63-80 doi: 10.1007/s42524-019-0059-7

摘要： Stakeholders remain skeptical in adopting modular integrated construction (MiC) because of the associated risks and uncertainties, although its benefits have been extensively documented. The unique business model of MiC nurtures several risks and uncertainties different from those of the conventional construction approach. Despite the growing attention on MiC with its market expansion, no systematic evaluation is in place to monitor its risks research progress. Accordingly, this research reviewed published literature addressing the risks associated with MiC from 1992 to 2019. Analysis reveals that the research publications on risks of MiC witnessed a steady growth, with considerable progress occurring in the last decade. Result implies that the risk of MiC has gained extra attention in the construction engineering and management domain in recent times. Existing empirical studies have focused heavily on perceived implementation risks, supply chain risks, schedule risks, investment risks, structural risks, ergonomic risks, and MiC risk management strategies, which indicate that MiC is associated with a host of risk events. The research further identified the critical risk events (CREs) in the application of MiC based on frequency of occurrence. The identified CREs contributes to the checklists of risk events in the implementation of offsite construction (OSC). The latter may be useful in risk planning, especially where the MiC is less developed, and fewer or no bespoke risk assessment exists. Research gaps in existing studies are highlighted in this research, and areas for further studies are then proposed. Thus, it makes a useful contribution to the scholarly literature on the risk of OSC and may prove useful to offsite construction researchers, industry practitioners, and project managers.

关键词： modular integrated construction     off-site construction     risk events     review    

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Smart construction site in mega construction projects: A case study on island tunneling project of Hong

Hongtao ZHOU, Hongwei WANG, Wei ZENG

《工程管理前沿（英文）》 2018年 第5卷 第1期   页码 78-87 doi: 10.15302/J-FEM-2018075

摘要： The construction sites of mega construction projects (MCP) often have numerous participants with interfacing work within a highly complex system. It is critical how to realize collaborative work and information sharing among such participants. The information and communication technologies (ICTs) provides a technical guarantee for solving this problem. Existing research has been achieved the partial processes digitization of construction site, but certain problems still exist: 1)information perception of the construction site is passive. 2) common collaboration and coordination problems in the construction industry have not been addressed. The emerging trends of ICTs have resulted in the integration of various computer technologies such as CPS, BIM, big data, and cloud computing into construction process, which would changes behavioral and management mode of construction sites. These new ICTs have been applied successfully in MCP, in particular, Hong Kong-Zhuhai-Macao Bridge project. A new management mode of construction sites is inspired by these case. In this paper, a new management mode of construction site for MCP has been proposed, namely, smart construction site. The ultimate goal of smart construction site is to accomplish safe, efficient and high-quality construction. This study put forward the conceptual framework for smart construction site, and have identified three key elements of smart construction site, including information support platform, collaboration work, and intelligent construction management. A case study on Hong Kong-Zhuhai-Macao Bridge project work as an evidence to support the practicability of the proposed mode. Significant contributions of this study is to propose a new management mode for MCP in construction industry, which would enrich the body of knowledge or the construction management community. Future research should be dedicated to further explore the potential of smart construction site in MCP management.

关键词： mega construction projects     smart construction site     information perception     collaborative work     intelligent construction management     information and communication technologies    

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Classification and quantification of excavated soil and construction sludge: A case study in Wenzhou,

《结构与土木工程前沿（英文）》   页码 202-213 doi: 10.1007/s11709-021-0795-8

摘要： With rapid urbanization in China, a large amount of excavated soil and construction sludge is being generated from geotechnical and underground engineering. For sustainable management of these construction wastes, it is essential to quantify their production first. The present study has attempted to classify the excavated soil and construction sludge according to their composition and geotechnical properties (particle size, water content, plasticity index). Based on these classifications, a new approach was proposed to quantify the production. The said approach was based on multi-source information, such as the urban topographic map, geological survey reports, urban master plan, and remote sensing images. A case study in Wenzhou city of China was also pursued to illustrate the validity of the newly developed approach. The research showed that in 2021–2025, the total excavated soils and construction sludge production in Wenzhou would reach 107.5 × 106 and 81.7 × 106 m3, respectively. Furthermore, the excavated soil was classified into the miscellaneous fill, crust clay, muddy clay and mud with silty sand. Likewise, the construction sludge was classified as liquid sludge and paste-like sludge. The classification and quantification can serve as guidance for disposal and recycling, thereby leading to high-level management of waste disposal.

关键词： excavated soil     construction sludge     geotechnical and underground engineering     production     classification    

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我国智能建造关键领域技术发展的战略思考

陈珂,丁烈云

《中国工程科学》 2021年 第23卷 第4期   页码 64-70 doi: 10.15302/J-SSCAE-2021.04.007

摘要：

智能建造作为新一代信息技术和工程建造的有机融合，是实现我国建筑业高质量发展的重要依托。本文阐述了智能建造的基本概念与重要性，归纳了面向全产业链一体化的工程软件、面向智能工地的工程物联网、面向人机共融的智能化工程机械、面向智能决策的工程大数据等四类关键领域技术；通过问卷调研与专家访谈，分析了我国智能建造关键领域技术在市场环境、企业部署、核心资源储备等方面的现状和短板。在此基础上，明确了关键领域技术的发展目标，提出了建立健全标准体系、推动“产学研用”协同、加大知识产权保护、开展典型工程试点示范等重点任务，继而从管理机构、企业、高校等多个主体的角度形成对策建议。

关键词： 智能建造，工程软件，工程物联网，工程机械，工程大数据    

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Systematic literature review on smart contracts in the construction industry: Potentials, benefits, and

《工程管理前沿（英文）》 2022年 第9卷 第2期   页码 196-213 doi: 10.1007/s42524-022-0188-2

摘要： The development of digital transformation in the construction industry has led to the increasing adoption of smart contracts. As programmable applications to automatically write, verify, and enforce transaction conditions, smart contracts can be used in different areas mainly to improve automation level, information security, and built digital environment enhancement. However, the smart contract is commonly mentioned as a blockchain appendage, while its unique connotation and value in the construction industry have not been recognized. Therefore, this study carries out a systematic review based on 81 research articles published from 2014 to 2021 on smart contract applications in construction to explore and highlight their potentials under domain-specific requirements. Results are analyzed according to research type categorization and domain codification. Eight research domains are identified, where the three most highly explored domains are contract and payment, supply chain and logistics, and information management. The integration of smart contracts with other innovative concepts and advanced technologies is analyzed. The applicability, benefits, and challenges of smart contract applications regarding different research domains are discussed.

关键词： smart contracts     blockchain     construction industry     BIM     systematic review    

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The Research Review of the Impact of Design to Construction Safety

Lin Yang,Qi-ming Li

《工程管理前沿（英文）》 2015年 第2卷 第3期   页码 224-227 doi: 10.15302/J-FEM-2015044

摘要： The constructability of design impacts the project construction process. Early researches categorized the constructability problems into two types, the construction-technique-associated and the project-target-associated. And furthermore, this paper proposes a new kind of constructability problem which associated with construction safety. Finally, it makes suggestions for research of the safety associated constructability.

关键词： constructability     construction safety     prevention thought design    

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The use of fine portions from construction and demolition waste for expansive soil stabilization: A review

《结构与土木工程前沿（英文）》   页码 803-816 doi: 10.1007/s11709-022-0835-z

摘要： Construction and demolition waste (CDW) are the largest waste products in the world today and competes as a viable recycled additive material in place of natural aggregates. Due to the increase in compressive strength of different mix proportions of CDW, it is also considered for reuse in concrete and subbase construction. This study shows the effect of CDW in expansive soil stabilization. The chemical and mechanical properties of these materials have shown that they are capable of developing compressive strength properties for replacement of cement with significant reduction in carbon emission. The inherent compositional properties of recycled CDW compared in this review suggests that CDW have good filler properties in highly expansive soils. Mixtures of crushed brick and recycled aggregates characterised based on chemical properties of different replacement ratios suggests that CDW of good-quality aggregates reduces swell potential of expansive soils and increased mechanical strength in pavement construction.

关键词： mixed fine portions     construction and demolition waste     expansive soil     soil stabilization    

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标题 作者 时间 类型 操作

Motion-based analysis for construction workers using biomechanical methods

Xincong YANG, Yantao YU, Heng LI, Xiaochun LUO, Fenglai WANG

期刊论文

Occupational risk of exposure to methicillin-resistant (MRSA) and the quality of infection hygiene in nursing homes

期刊论文

Is servitization of construction the inevitable choice of Internet Plus construction?

Hongwei WANG, Dian LIU

期刊论文

Analyzing sustainability of construction equipment in the state of California

Hakob AVETISYAN, Miroslaw SKIBNIEWSKI, Mohammad MOZAFFARPOUR

期刊论文

A review of metro construction in China: Organization, market, cost, safety and schedule

Lieyun DING, Jie XU

期刊论文

Named entity recognition for Chinese construction documents based on conditional random field

期刊论文

Socialized care services for the aged population: System construction and support measures

期刊论文

Situational Awareness in Construction and Facility Management

Burcu Akinci

期刊论文

Risks of modular integrated construction: A review and future research directions

Ibrahim Yahaya WUNI, Geoffrey Qiping SHEN, Bon-Gang HWANG

期刊论文

Smart construction site in mega construction projects: A case study on island tunneling project of Hong

Hongtao ZHOU, Hongwei WANG, Wei ZENG

期刊论文

Classification and quantification of excavated soil and construction sludge: A case study in Wenzhou,

期刊论文

我国智能建造关键领域技术发展的战略思考

陈珂,丁烈云

期刊论文

Systematic literature review on smart contracts in the construction industry: Potentials, benefits, and

期刊论文

The Research Review of the Impact of Design to Construction Safety

Lin Yang,Qi-ming Li

期刊论文

The use of fine portions from construction and demolition waste for expansive soil stabilization: A review

期刊论文