Acta Scientiarum Polonorum. Architectura

Stability analysis of the Mamak Dam’s behaviour under various water levels in the reservoir

2025-01-27T13:24:38+00:00

A dam is an engineered construction designed to store water primarily for human needs. When a dam fails, it has the potential to become a substantial disaster. Some primary causes of dam failure are excessive water leakage, landslides and earthquakes. In general, the current performance evaluation of the Mamak Dam falls into the “fairly good” category, even in the aftermath of the earthquake event with a magnitude of 6.5 Mw in 2018. In this study, the dam’s stability is analysed under seismic events, rapid drawdown and maximum daily rainfall infiltration. It is concluded that the upstream and downstream slopes were generally found to be safe in all design situations. Nevertheless, the impact of the maximum design earthquake (MDE) is notable in both pseudo-static and dynamic analyses, causing a reduction of over 50% in the factor of safety (FoS) – ultimately falling below the minimum safety threshold. Conversely, the operating basis earthquake (OBE) has a relatively minor effect on the FoS.

Analysis of the impact of the global crisis in 2021–2024 on the development time of multifamily blocks

2025-04-15T11:35:00+00:00

The study describes the timeline of a construction project comprising six residential buildings, green spaces, and a playground. The project was carried out in the Warsaw area between 2022 and 2024. The investment was undertaken following significant events such as the COVID-19 pandemic, rising inflation, and the armed conflict in Ukraine. The study focuses on the analysis of selected phases of construction work performed as part of the investment described. The specific tasks highlighted include the installation of window joinery, the construction of internal masonry walls, the installation of partitions and balcony railings, as well as the delivery and installation of lifts. Additionally, general data on the work progress, construction schedule, and entries from the construction logbook referring to the specific completion dates of various stages were examined. Based on the provided data, an analysis was conducted to compare the time required to complete individual construction tasks against the schedule established during the project planning phase. The text addresses the challenges of meeting deadlines in large construction projects, where the technology used, the number of personnel employed, and the scale of the investment contribute to the extension of the construction process by the contractor.

A critical review of the implementation of building information modelling (BIM) in construction processes in Poland: deep insights

2025-04-15T11:34:59+00:00

The increasing digitisation of the construction industry is generating global interest in building information modelling (BIM) methodology. Recognising the tangible benefits it brings, many countries are choosing to begin work on implementing the so-called mandate, defining national implementation plans and introducing legal regulations. The purpose of this article was to conduct an in-depth study and literature search on the current state of BIM implementation in Poland. As part of a structured implementation of the work, the previous activities of central government bodies towards the so-called BIM mandate were examined. The ongoing optionality of BIM application in public procurement is shown, as well as the lack of coordinated top-down activities, as they play a major role towards national implementation. In addition, the relevance of NGO activities in the process of popularising BIM was presented. As a result of the critical analysis, an assessment and discussion of the possible future directions of BIM implementation in Poland was made.