Reviewing Arch-Dams’ Building Risk Reduction Through a Sustainability–Safety Management Approach

Abstract

The importance of dams is rapidly increasing due to the impact of climate change on increasing hydrological process variability and on water planning and management need. This study tackles a review for the concrete arch-dams’ design process, from a dual sustainability/safety management approach. Sustainability is evaluated through a design optimization for dams´ stability and deformation analysis; safety is directly related to the reduction and consequences of failure risk. For that, several scenarios about stability and deformation, identifying desirable and undesirable actions, were estimated. More than 100 specific parameters regarding dam-reservoir-foundation-sediments system and their interactions have been collected. Also, a summary of mathematical modelling was made, and more than 100 references were summarized. The following consecutive steps, required to design engineering (why act?), maintenance (when to act) and operations activities (how to act), were evaluated: individuation of hazards, definition of failure potential and estimation of consequences (harm to people, assets and environment). Results are shown in terms of calculated data and relations: the area to model the dam–foundation interaction is around 3.0 Hd2, the system-damping ratio and vibration period is 8.5% and 0.39 s. Also, maximum elastic and elasto-plastic displacements are ~0.10–0.20 m. The failure probability for stability is 34%, whereas for deformation it is 29%.

Study of Temporal Variations in Species–Environment Association through an Innovative Multivariate Method: MixSTATICO

“…Water sustainability is an overriding issue for ecosystem support [1]. Human actions and natural events are factors that cause alterations in the environment, affecting ecosystem biotic and abiotic components [132][133][134]. Therefore, planktonic components are of great importance in assessing the water quality of aquatic systems, as they are subject to environmental variations [135] in the area and the geographical locations where they grow [95].…”

Safety Management in Sustainable Construction Projects: A Conceptual Framework

“…In the face of the numerous recent safety challenges and the widely spread unsustainable safety management, safe sustainable construction projects are highly demanded (Kukoyi & Adebowale, 2021;Marhavilas et al, 2018;Okoye & Okolie, 2013;Zacchei & Molina, 2020). In justification, safety management for sustainable construction projects involves people, objects, construction environment, and numerous safety management processes (Kukoyi & Adebowale, 2021;Li et al, 2021;Liwång, 2020).…”

“…In support, Grote (2012) has mentioned that is important to understand that sustainable construction projects could have relatively large potential for major accidents, or minor occupational accidents depending on the type and size of a project. Also, the increasing complexity of sustainable construction projects makes the traditional construction safety management tools inefficient (Kukoyi & Adebowale, 2021;Li et al, 2021;Liwång, 2020;Marhavilas et al, 2018;Zacchei & Molina, 2020). On the other side, the rising awareness of sustainable construction's ability to positively impact environmental issues is increasing the need for adequate safety management to the forefront (Robichaud & Anantatmula, 2011;Marhavilas et al, 2018;Zacchei & Molina, 2020).…”

“…Considering the arguments about the effectiveness of safety management in sustainable construction projects (Grote, 2012;Kukoyi & Adebowale, 2021;Loushine et al, 2006;Marhavilas et al, 2018;Okoye & Okolie, 2013;Zacchei & Molina, 2020), the question on how to apply safety management components of tradition construction projects in sustainable construction project gains increased importance. The reason is that the relevant research in the last two decades has substantially discussed successful safety management in traditional construction projects (Kim et al, 2020;Kukoyi & Adebowale, 2021;Lee & Son, 2021;Li et al, 2015;Liwång, 2020), but did not address, efficiently, the issue of safety management in sustainable construction projects (Li et al, 2021;Loushine et al, 2006;Marhavilas et al, 2018;Okoye & Okolie, 2013;Robichaud & Anantatmula, 2011;Zacchei & Molina, 2020) Therefore, this research will fill this gap by constructing a conceptual framework that aims to integrate safety management in sustainable construction projects, to produce safe sustainable construction projects. In particular, this systematic review will investigate the essential safety management components that are needed to produce safe sustainable construction projects, and illustrate the research outcome in an effective conceptual framework.…”

A New Approach For Physically-Based Probabilistic Seismic Hazard Analysis For Portugal

“…"Random" uncertainties are related to the inherent randomness of the studied phenomena, whereas the "epistemic" uncertainties are related to the lack of knowledge of the models [9,10].…”