A deep excavation should be designed and implemented together with the precautions to prevent any loss of stability and structural damage in the infrastructure and superstructure elements of the neighboring parcels and risks against construction worker's health and safety. This study represents an example of soil damage that may occur due to foundation excavation. The features of the soil affected by the excavation were analyzed through a geological survey and soil models were created for each analysis stages. The study investigates the slope stability analyses that take place during the foundation excavation with the commonly used limit equilibrium (LE) methods. In this article, slope problems that may occur around the excavation before the construction of the basement of a 3-storey school building in Istinye Neighborhood of Istanbul Sarıyer district are examined. First, geotechnical and structural parameters were determined by obtaining detailed drilling reports of the region. Then the study area was modeled with the Rocscience Slide 6.0 program based on the limit equilibrium method. Following the evaluation of the basement excavations, a beveled excavation was made for the safety of the basement construction after the excavation and the stability of the slope excavations was found to be sufficient.

Due to the increasing population, the rapid consumption of natural resources has revealed the necessity of protecting nature from people. Increasing building stock due to population growth has triggered climate change. The energy and natural resources consumed during production in the construction sector have created important environmental problems such as global warming and climate change in the sector. Greenhouse gas emissions caused by construction materials can be considered as one of the main causes of climate change problems and emphasizes the necessity of considering environmental effects. Greenhouse gas is one of the most important factors affecting the ecological environment and climate change, as it is one of the gases with the highest carbon dioxide emission rate. Concrete and steel used in the construction industry are among the materials that have a negative impact on climate change. This study revealed the effects of waste materials used in the construction industry on the problem of climate change and the importance of promoting the efficient use of energy resources for the management of this problem. In addition, this study emphasized the importance of focusing on sustainable structures in order to leave a cleaner and healthier environment for future generations, and that priority should be given to developing environmentally friendly materials.

The 2023 Kahramanmaraş earthquake sequence, consisting of two major earthquakes ( M _w 7.8 and M _w 7.5) that occurred on the same day in southeastern Türkiye, caused extensive structural damage and severe site‐related impacts across the affected region. This study investigates the post‐earthquake mechanical performance and durability characteristics of concrete and reinforcement samples collected from earthquake‐damaged reinforced concrete (RC) structures in the Antakya and Düziçi regions. Laboratory analyses including capillary water absorption, ultrasonic pulse velocity (UPV), compressive strength, and tensile tests were conducted to evaluate earthquake‐induced material deterioration and residual structural integrity. The results revealed that concretes from Düziçi exhibited higher sorptivity, lower UPV values, and compressive strengths generally below 20 MPa, indicating severe microcracking and increased pore connectivity. In contrast, the Antakya specimens maintained comparatively denser matrices and higher compressive strength values (~25 MPa). The findings demonstrate that intense seismic loading, together with local geological and construction‐related conditions, significantly influenced the deterioration behavior of RC materials. The study highlights the importance of comprehensive post‐earthquake material characterization for reliable damage assessment and for improving future seismic design, rehabilitation, and resilience strategies in earthquake‐prone regions.