Aims

EEE particularly addresses the scientific and engineering challenges posed by extreme environments, including cryospheric regions, extreme precipitation events, severe heat and drought, aggressive corrosion, intense radiation, volcanic terrains, deep-earth, and deep-sea conditions. The journal aims to promote the synergistic development of adaptive materials, innovative theories, and advanced technologies, thereby supporting infrastructure safety, enhancing engineering resilience, and fostering ecological sustainability on a global scale.

Topics of interest:

Primary areas of interest include, but are not limited to:

1. Infrastructure engineering in extreme environments:

Cryogenic tunnel systems; Permafrost foundation engineering; Polar and deep-sea infrastructure; Cold-region transportation networks; Arctic port and coastal infrastructure; Deep underground infrastructure stability; Structural reliability under low temperatures; Resilience-based infrastructure design; Climate-adaptive structural systems; Lifeline network reliability; Digital-twin infrastructure systems; Real-time structural health monitoring; Critical infrastructure resilience; Settlement and deformation control; Nonlinear structural response; Rapid modular construction; Low-carbon construction methods; Risk-informed infrastructure design; Adaptive maintenance systems; Thermal barrier and insulation systems; Infrastructure–environment interaction; Structural optimization under uncertainty; Engineering resilience evaluation; Permafrost transportation and storage facilities; Urban underground infrastructure networks; Remote monitoring and control platforms; Polar logistics and supply networks; Long-term infrastructure service performance; Multi-scale infrastructure modeling; Tunnel ventilation and thermal control in permafrost.

2. Hazard mechanisms and protective engineering under extreme conditions:

Coupled hazard modeling; Disaster cascade mechanisms; Multi-hazard interaction; Fault zone instability and deformation; Ground failure mechanisms under extreme rainfall; Landslide initiation and runout; Glacier- and permafrost-induced hazards; Freeze–thaw damage of structures; Durability degradation under extremes; Rockburst dynamics; Extreme precipitation and flash flood processes; Debris flow mechanics; Gas hazard mitigation in tunnels; Large deformation behavior; Energy-dissipation structural systems; Blast- and impact-resistant design; Fire-resilient design strategies; Risk propagation modeling; Early-warning and response systems; Post-disaster recovery and reconstruction planning; Bio-geotechnical reinforcement methods; Impact barrier systems; Progressive collapse mechanisms; Residual capacity assessment; Protective shell and lining systems; Structural performance under multi-hazard coupling; Damage accumulation analysis; Hazard–structure coupling behavior; Disaster resilience evaluation frameworks; Adaptive protection systems for extreme environments.

3. Geotechnical physics and mechanics under extreme conditions:

Thermo-hydro-mechanical coupling; Deep high-stress and thermal rock mechanics; Freeze–thaw soil mechanics; Unsaturated soil response under extremes; Saline-frozen soil behavior; Frost heave and thaw settlement; In-situ stress interpretation; Deep-earth pressure mechanisms; Nonlinear stress wave propagation; Fracture and damage evolution in rock; Multiphase flow in porous media; Constitutive modeling of geomaterials; Physics-informed machine learning in geomechanics; Digital-twin geotechnical modeling; Geostatistical modeling and uncertainty quantification; Bio-cementation geomechanics; Clogging–stress coupling effect; Hydrate-bearing sediment mechanics; Scale-dependent deformation modeling; Heterogeneity and anisotropy in geological media; Thermo-mechanical creep behavior; Poroelastic and poroplastic coupling; Hydraulic fracturing in deep formations; Stress diffusion and relaxation processes; Coupled THM–fracture modeling; Stability of deep geological structures; Dynamic response of geomaterials under high stress; Long-term performance of deep-earth engineering; Soil–structure interaction under extreme conditions; Thermo-hydro-chemical interactions in geomaterials.

4. Novel materials and technological advances for extreme environments:

High-durability structural materials; Climate-adaptive construction materials; Freeze–thaw and corrosion-resistant composites; Erosion- and abrasion-resistant coatings; Fire- and heat-resistant materials; Self-healing concrete and grouting materials; Low-carbon and recycled construction materials; Bio-based geotechnical reinforcement materials; Geopolymer and alkali-activated binders; Waterproofing and anti-crystallization coatings; Salt- and sulfate-resistant materials; Insulation and thermal barrier systems; Shock- and impact-mitigating materials; Gas barrier and sealing materials for tunnels; Radiation- and UV-resistant composites; Smart sensing materials and coatings; Intelligent drilling and sensing systems; Distributed fiber-optic monitoring technologies; Edge–cloud IoT monitoring systems; Digital-twin monitoring and diagnosis technologies; Construction robotics and automated inspection; In-situ additive repair and maintenance technologies; Adaptive materials for degradation control; Cryogenic and permafrost engineering materials; Gas- and water-disaster control materials; Anti-biofouling and microbial control coatings; Anti-clogging and permeability-control materials; Multifunctional barrier and lining systems; Environmental-friendly construction chemicals; Long-term performance and durability assessment technologies.

5. Ecosystem responses and environmental impacts in extreme environments:

Carbon cycle and greenhouse gas fluxes; Permafrost carbon release; Hydrologic response under climate extremes; Soil–vegetation–atmosphere interactions; Ecosystem resilience and vulnerability; Desertification processes and drought stress; Extreme precipitation and runoff changes; Salinity-stress biogeochemistry; Microplastic transport and deposition; Heavy metal and contaminant transport; Hydrochemical perturbations; Permafrost degradation and thermokarst formation; Erosion and sediment dynamics; Vegetation dynamics under temperature extremes; Biodiversity under environmental stress; Ecological impacts of infrastructure development; Nature-based solutions for engineering resilience; Ecological restoration technologies; Slope revegetation and soil stabilization; Biogeochemical cycling in cold regions; Wetland and peatland degradation; Carbon–water–energy coupling processes; Environmental risk assessment of lifeline infrastructure; Ecosystem-based disaster mitigation; Permafrost–hydrology–ecosystem coupling; Dust storm and air quality interactions; Water and mud inrush environmental effects; Sustainable management of fragile ecosystems; Bio-mediated environmental remediation; Climate change adaptation and ecological security.