Sustainability of underground infrastructure – Part 1: Digitalisation-based carbon assessment and baseline for TBM tunnelling

Tunnelling and Underground Space Technology, Journal Year: 2024, Volume and Issue: 148, P. 105776 - 105776

Published: April 22, 2024

Alongside the transition towards sustainable and renewable infrastructure energy production, tunnelling projects that adopt tunnel boring machines (TBM) continue to increase in size complexity. Life Cycle Assessment (LCA) methodologies have a significant impact on Architecture, Engineering Construction (AEC) industry, with shift focus cost carbon management across lifecycle through use of digitalisation techniques sustainability rating systems. This paper aims develop systematic framework enhance underground early design construction stages, aiming for "build clever efficiently". integrates digitalisation, assessment standards, numerical modelling, optimisation assess emissions establish benchmarks products processes. The approach uses parametric models define tunnelling-related entities such as geological formations, TBM, segments, designed dimensional constraints allow adaptive modelling interactions. Enabled by building information (BIM) enriched domain properties, module-based accounting is adopted evaluate footprint material- asset-level key emitters functional units. Leveraging established databases, baselines segmental lining designs reduction strategies are established. Through project-driven case studies, correlations among geotechnical conditions, dimensions, TBM operating parameters developed quantify emissions. A prototype programme demonstrates framework's application typical metro road tunnels at different levels details (LoD). serves guideline conducting embodied assessments specifically tailored tunnelling, acknowledging substantial contribution process, which controlled conditions.

Language: Английский

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Introducing the Comprehensive Value Function for Sustainability Full-Spectrum Assessment

Sustainability, Journal Year: 2024, Volume and Issue: 16(7), P. 2617 - 2617

Published: March 22, 2024

This paper introduces the comprehensive value function, a novel framework designed to address multi-dimensional challenges in sustainability assessment within decision-making processes. Multi-criteria methods based on multi-attribute utility theory excel at integrating environmental, social, and economic factors but typically focus positive neutral impacts. limitation often results oversight of critical negative consequences, thus restricting their effectiveness all-encompassing evaluations. The proposed addresses this gap by quantifying degree satisfaction across full spectrum impacts outcomes essential for holistic assessments. necessity model is highlighted shortcomings current practices, where adverse are frequently overlooked existing frameworks fail foresee repercussions various alternatives. By facilitating creation positive, negative, or piecewise functions, CVF provides reflection impacts, well-informed decisions. Integrating function into established models leads more balanced approach adept navigating intricate trade-offs inherent sustainable development. Organised systematically, presents its application domains, concluding section synthesising findings.

Language: Английский

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Enhancing Civil Engineering Education through Affordable AR Tools for Visualizing BIM Models

Journal of Civil Engineering Education, Journal Year: 2024, Volume and Issue: 150(3)

Published: April 15, 2024

Traditionally, civil engineering infrastructures have been represented through two-dimensional (2D) drawings, which can lead to interpretation errors and jeopardize engineers' understanding of complex projects. However, with the development building information modeling (BIM) methodology, projects now be virtually modeled in three-dimensional (3D), offering a more accurate representation. Augmented reality (AR) tools linked BIM models for educational purposes, allowing immersive interactive learning experience. While previous studies focused on improving visualization mechanical this study presents low-cost AR tool visualizing its application courses. To achieve this, main state-of-the-art software was compared their characteristics functionalities, software, Unity, selected develop an tool. The then presented, along analysis benefits when introduced into two courses at University Castilla La Mancha (UCLM) Spain: Descriptive geometry, Design work structure. Overall, results suggest that integration education enhance students' experience improve

Language: Английский

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Serviceability parameters and social sustainability assessment of flax fabric reinforced lime-based drywall interior panels

Journal of Building Engineering, Journal Year: 2023, Volume and Issue: 76, P. 107406 - 107406

Published: July 21, 2023

In the search of more environmentally-friendly construction materials, use natural-based fibers has gained much attention as reinforcement in inorganic-based matrix. this paper, nonwoven flax fabric reinforced lime composites are created using a dewatering technique, and serviceability parameters –thermal conductivity, sound absorption coefficient, residual flexural resistance after exposure to elevated temperature– determined experimentally. The tests carried out on two different prepared under distinct curing regimens, i.e., accelerated carbonation CO2 chamber natural laboratory conditions, evaluate effect forced carbonation. addition, experimental results included MIVES model (Integrated Value Model for Sustainability Assessment) social sustainability developed material an interior drywall panel. MIVES, type multi-criteria decision-making method, is based value function concept seminars with experts. According tests, cured sample higher thermal conductivity (∼4 times) lower coefficients (∼20%) than naturally one. Nonetheless, performance former 50% (at room temperature) 100% better. As index assessed by MIVES-based multi-objective approach, it ranges between 0.65 0.75 (out 1.0) both composite panels, at least 20% control panel no reinforcement. designed research can be used assessing other materials although weights assigned experts could adapted reflect perceptions local preferences.

Language: Английский

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Enhancing the Accuracy of Low-Cost Inclinometers with Artificial Intelligence

Buildings, Journal Year: 2024, Volume and Issue: 14(2), P. 519 - 519

Published: Feb. 14, 2024

The development of low-cost structural and environmental sensors has sparked a transformation across numerous fields, offering cost-effective solutions for monitoring infrastructures buildings. However, the affordability these often comes at expense accuracy. To enhance precision, LARA (Low-cost Adaptable Reliable Anglemeter) system averaged measurements set five different accelerometers working as inclinometers. it is worth noting that LARA’s sensitivity still falls considerably short achieved by other high-accuracy commercial solutions. There are no works presented in literature to accuracy, resolution inclinometers using artificial intelligence (AI) tools measuring deformation. fill gaps, techniques used elevate precision an inclinometer. proposed AI-driven tool uses Multilayer Perceptron (MLP) glean insight from devices’ responses. efficacy practicality substantiated through real steel frame located Cuenca, Spain.

Language: Английский

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An open-source GIS app for digitalising bridge inspections and automating BIM model integration

Structure and Infrastructure Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 12

Published: Feb. 3, 2025

Language: Английский

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Bridge management with AI, UAVs, and BIM

Automation in Construction, Journal Year: 2025, Volume and Issue: 175, P. 106170 - 106170

Published: April 9, 2025

Language: Английский

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A Case Study on Integrating an Eco-Design Tool into the Construction Decision-Making Process

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(22), P. 10583 - 10583

Published: Nov. 16, 2024

To enhance the sustainability of construction and meet sector’s environmental agenda, it is essential to comprehensively scrutinize environmental, social, economic impacts projects from project’s design stage. Such assessment utmost importance minimize both new rehabilitation particularly critical during selection building materials solutions. This work reports improvements in functionality user-friendliness an eco-design tool (UAveiroGreenBuilding) targeting construction/rehabilitation sector previously developed within our research group. The optimized version underwent validation through competitive window frame (e.g., wood, PVC, aluminum) for potential implementation a project. Windows with PVC frames were identified as preferred configuration due their superior performance favorable profile. Additionally, digital communication interface was connect information modeling (BIM) projects, achieved routine integrated using Dynamo application. successful integration not only streamlined expedited data transfer process by obviating need manual input but also enabled storage throughout life cycle project simple reliable protocol.

Language: Английский

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Sustainable procurement of water supply infrastructure projects: a building information modeling-based approach

Sustainable and Resilient Infrastructure, Journal Year: 2024, Volume and Issue: 9(4), P. 349 - 366

Published: March 13, 2024

Triple Bottom Line (TBL)-based project proposal evaluation is highly data-intensive. The above challenge elevated when considering the complex nature of construction projects. Emerging concepts, such as Building Information Modeling (BIM), provide a data repository that aids TBL-based evaluation. Despite national-level BIM mandates, there lack BIM-based TBL performance tools. Hence, this study developed plugin toolkit to automate water supply infrastructure projects by performance. This incorporates unique methodology integrates environmental product declarations, social life cycle impact, and costing. case revealed selected had superior while bid price was slightly higher (6.5%) than lowest-cost proposal. proposed method provides user-friendly tool for promotes implementation in industry.

Language: Английский

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Virtual trial assembly of large steel members with bolted connections based on multiscale point cloud fusion

Computer-Aided Civil and Infrastructure Engineering, Journal Year: 2024, Volume and Issue: 39(17), P. 2619 - 2641

Published: April 24, 2024

Abstract Virtual trial assembly (VTA) using 3D laser scanning as the digital carrier can overcome shortcomings of time‐consuming and costly physical preassembly. However, its application in large steel structures with bolted connections remains limited. First, this study introduces a novel approach for acquiring multiscale point cloud data members terrestrial scanners (TLSs) hand‐held scanner (HHS). This considers both global local details members. Additionally, precise registration method based on magnetic targets is proposed clouds, which enables accuracy multisource clouds to reach submillimeter precision. Subsequently, algorithm feature screening introduced, utilizes dichotomous grid identify extract significant quantity bolt holes effectively. fully automated fast extraction cylindrical inner surface holes. Finally, bounding box Procrustes analysis are employed perform VTA assembled features. The feasibility above verified by down‐scale modeling experiment project test, provide technical support truss structures.

Language: Английский

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