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Article
Publication date: 1 March 2023

Haodong Fan, Feng Luo, Shuai Gao, Meng Li, Zhen Lv and Geng Sun

This study aims to clarify the evolution law of stress field and fracture field during the mining process of inclined coal seam, to prevent the occurrence of roof burst water and…

Abstract

Purpose

This study aims to clarify the evolution law of stress field and fracture field during the mining process of inclined coal seam, to prevent the occurrence of roof burst water and impact ground pressure accident during the advancing process of working face.

Design/methodology/approach

The evolution law of stress-fracture field under different mining conditions of inclined coal seam was studied by using discrete element method and similar material simulation method.

Findings

The overburden stress at the lower end of the coal seam was mainly transmitted to the deep rock mass on the left side, and the overburden stress at the upper end was mainly transmitted to the floor direction. With the increase of the inclined length of the mining coal seam, the development of the fracture zone gradually evolves from the “irregular arch” form to the “transversely developed trapezoid” form. The development range of the fracture zone was always in the internal area of the stress concentration shell.

Originality/value

An original element of this paper is based on the condition that the dip angle of coal seam is 35°, and the evolution law of overburden stress-fracture field during the excavation of coal seam with different lengths was analyzed by UDEC numerical simulation software. The coupling relationship between stress shell and fracture field was proposed, and the development range of fracture zone was determined by stress. The value of this paper is to provide technical support and practical basis for the safety production of a mine working face.

Details

World Journal of Engineering, vol. 21 no. 3
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 24 November 2023

Nurol Huda Dahalan, Rahimi A. Rahman, Siti Hafizan Hassan and Saffuan Wan Ahmad

Evaluating the implementation of environmental management plans (EMPs) in highway construction projects is essential to avoid climate change. Public evaluations can help ensure…

Abstract

Purpose

Evaluating the implementation of environmental management plans (EMPs) in highway construction projects is essential to avoid climate change. Public evaluations can help ensure that the EMP is implemented correctly and efficiently. To allow public evaluation of EMP implementations, this study aims to investigate performance indicators (PIs) for assessing EMP implementation in highway construction projects. To that end, the study objectives are to compare the critical PIs between environment auditors (EAs) and environment officers (EOs) and among the main project stakeholders (i.e. clients, contractors and consultants), create components for the critical PIs and assess the efficiency of the components.

Design/methodology/approach

The paper identified 39 PIs from interviews with environmental professionals and a systematic literature review. Then a questionnaire survey was developed based on the PIs and sent to EAs and EOs. The data were analyzed via mean score ranking, normalization, agreement analysis, factor analysis and fuzzy synthetic evaluation (FSE).

Findings

The analyses revealed 21 critical PIs for assessing EMP implementation in highway construction projects. Also, the critical PIs can be grouped into four components: ecological, pollution, public safety and ecological. Finally, the overall importance of the critical PIs from the FSE is between important and very important.

Originality/value

To the best of the authors’ knowledge, this paper is the first-of-its-kind study on the critical PIs for assessing EMP implementation in highway construction projects.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 15 no. 3
Type: Research Article
ISSN: 1759-5908

Keywords

Article
Publication date: 27 November 2023

Sharad Sharma, Rajesh Kumar Singh, Ruchi Mishra and Nachiappan (Nachi) Subramanian

This study aims to address three research questions pertaining to climate neutrality within the supply chain of metal and mining industry: (1) How can an organization implement…

Abstract

Purpose

This study aims to address three research questions pertaining to climate neutrality within the supply chain of metal and mining industry: (1) How can an organization implement practices related to climate neutrality in the supply chain? (2) How do members of the supply chain adopt different measures and essential processes to assist an organization in responding to climate change-related concerns? (3) How can the SAP-LAP framework assist in analyzing and proposing solutions to attain climate neutrality?

Design/methodology/approach

To address the proposed research questions concerning climate neutrality, this study employs a case study approach utilizing the SAP-LAP (situation, actor, process–learning, action, performance) framework. Within the SAP-LAP framework, adopting a natural resource-based perspective, the study thoroughly examines the intricacies and interactions among existing situations, pertinent actors and processes that impact climate initiatives within a metal and mining company.

Findings

The study's findings suggest that organizations can achieve the objective of climate neutrality by prioritizing resources and capabilities that lead to reduced GHG emissions, lower energy consumption and optimal resource utilization. The study further proposes key elements that significantly influence the pursuit of climate neutrality within enterprises.

Research limitations/implications

This study is one of the earliest contributions to the development of a holistic understanding of climate neutrality in the supply chain of the metal and mining industry.

Practical implications

The study will assist practitioners and policymakers in comprehending the present circumstances, actors and processes involved in enterprises' supply networks in order to attain climate neutrality in supply chains, as well as in taking the right steps to enhance performance.

Originality/value

This study presents a climate neutrality model and provides valuable insights into emission management, contributing to the achievement of the climate neutrality objective.

Details

The International Journal of Logistics Management, vol. 35 no. 3
Type: Research Article
ISSN: 0957-4093

Keywords

Article
Publication date: 1 June 2023

Tamer ElSerafi

Urban mobility has substantially evolved in several western countries, shifting from interest in road expansion strategies to cater motorized movement to the emphasis on…

Abstract

Purpose

Urban mobility has substantially evolved in several western countries, shifting from interest in road expansion strategies to cater motorized movement to the emphasis on sustainable mobility. This is, however, not the case in several developing countries that still try to accommodate vehicular flows in inner historic cities. This paper aims at providing an assessment framework that helps in evaluating the effect of streetscape development on the walking and cycling environment in historic contexts.

Design/methodology/approach

This research follows a two-phase methodology. Phase 1 is the investigation of the literature review including the streetscape design, Sustainable Development Goals (SDGs) and indicators for the assessment of walking and cycling environment. This phase results in developing a set of indicators for the assessment. Phase 2 is the case study including, methods, steps and results of the assessment based on the output of Phase 1. This phase concludes with a discussion on the challenges and recommendations for the enhancement.

Findings

The streetscape development in Afrang was insufficient and negatively affected the walking and cycling environment. It was motorized-oriented, instead of enhancing green mobility. The interventions led to more crowds, safety risks and less pleasant experience. Moreover, the car users' experience was enhanced initially; however, the traffic situation did not persist. A sustainable urban mobility approach is necessary to be implemented with consideration to the global level and the relation to SDGs.

Originality/value

There is a gap in tackling the research problem both within the context of Port Said in particular and Egyptian context in general. Local authorities need a clear structured methodology to follow in the development of the streetscape. The assessment indicators gathered can be the basis for evaluating future plans.

Details

Open House International, vol. 49 no. 2
Type: Research Article
ISSN: 0168-2601

Keywords

Article
Publication date: 19 April 2023

Nuray Yildiz, Melek Ece Öncüer and Abdullah Tanrisevdi

This study aims to assess the relationships between cultural travel motivation, two dimensions of authenticity and satisfaction of domestic tourists visiting Sirince in Turkey…

1285

Abstract

Purpose

This study aims to assess the relationships between cultural travel motivation, two dimensions of authenticity and satisfaction of domestic tourists visiting Sirince in Turkey. Given the structure of the model, authenticity is two latent variables, indirectly affecting satisfaction.

Design/methodology/approach

The research takes a predictive and explanatory approach rather than theory confirmation. Partial least squares (PLS) algorithm was used to assess the multiple mediation. The data were collected from 391 domestic visitors through a self-administered questionnaire.

Findings

The research highlights that two dimensions of authenticity have a statistically mediating influences on the relationship between cultural travel motivation and satisfaction. Furthermore, while cultural travel motivation is the most important predictor of satisfaction, object-based authenticity has emerged as an antecedent variable that deserves to be given the highest importance. Finally, first time visitors and repeaters did not differ across all relationships in the model.

Research limitations/implications

The fact that the data were collected only from Sirince can be considered as geographical limitations of the study. Another limitation is that due to the ongoing COVID-19 pandemic, the data were obtained only from domestic tourists visiting Sirince.

Practical implications

The study on the multiple mediating roles of authenticity in the relationship between motivation factor alongside satisfaction revealed a variety of application opportunities, particularly for destinations attempting to position themselves as authentic. Accordingly, authenticity concept gains significance in tourism industry more often because unique experiences at the visited destinations can satisfy the individuals in search of their self-identity.

Social implications

Furthermore, transformation of authentic places into tourism destinations develops cultural values in line with expectations of tourists. However, this transforms domestic cultural factors into commercial products by eroding their significance in the eye of local residents. This invites artificiality by drifting apart from originality of cultural elements. Each element serves as part of authenticity is indeed away from authentic experience even though it is regarded as an authentic experience from tourists’ perspective because it diverts from its reality. Establishing balance between tourists’ travel motivations and their expectation from authentic destination is substantially important to satisfy their sensational and sentimental expectations. In addition to the ones mentioned above, managers should take an active role in promotion and focus on sponsorship activities to highlight the authenticity of Sirince; begin reconstruction works by considering the original architecture specific to the region; and pay attention to the compatibility of the new architectural texture with the destination character. As stated in the study of Genc and Gulertekin Genc (2021), special attention should be paid to the harmony between the architectural texture and the destination feature. Finally, considering that authenticity has a mediating role between cultural travel motivation and satisfaction, authentic values should be highlighted in promotional videos.

Originality/value

There has been very little research into the role of the dimensions of authenticity in mediating the relationship between cultural motivation and satisfaction. Unlike previous studies on authenticity and tourism, this research attempted to examine the relationship between cultural travel motivation and satisfaction by involving two dimensions of authenticity into the model.

Details

Journal of Hospitality and Tourism Insights, vol. 7 no. 2
Type: Research Article
ISSN: 2514-9792

Keywords

Open Access
Article
Publication date: 22 March 2024

Abdul Rauf, Daniel Efurosibina Attoye and Robert H. Crawford

Recently, there has been a shift toward the embodied energy assessment of buildings. However, the impact of material service life on the life-cycle embodied energy has received…

Abstract

Purpose

Recently, there has been a shift toward the embodied energy assessment of buildings. However, the impact of material service life on the life-cycle embodied energy has received little attention. We aimed to address this knowledge gap, particularly in the context of the UAE and investigated the embodied energy associated with the use of concrete and other materials commonly used in residential buildings in the hot desert climate of the UAE.

Design/methodology/approach

Using input–output based hybrid analysis, we quantified the life-cycle embodied energy of a villa in the UAE with over 50 years of building life using the average, minimum, and maximum material service life values. Mathematical calculations were performed using MS Excel, and a detailed bill of quantities with >170 building materials and components of the villa were used for investigation.

Findings

For the base case, the initial embodied energy was 57% (7390.5 GJ), whereas the recurrent embodied energy was 43% (5,690 GJ) of the life-cycle embodied energy based on average material service life values. The proportion of the recurrent embodied energy with minimum material service life values was increased to 68% of the life-cycle embodied energy, while it dropped to 15% with maximum material service life values.

Originality/value

The findings provide new data to guide building construction in the UAE and show that recurrent embodied energy contributes significantly to life-cycle energy demand. Further, the study of material service life variations provides deeper insights into future building material specifications and management considerations for building maintenance.

Details

Engineering, Construction and Architectural Management, vol. 31 no. 13
Type: Research Article
ISSN: 0969-9988

Keywords

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