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Conference Open access Aug 2026

Mechanical Response and Stability Assessment of Tunnels in Fair Rock: A 3D Finite Element and Field Study

Tunnel excavation in fair rock masses presents significant challenges due to complex stress redistribution and deformation mechanisms. This study develops and validates a full-scale three-dimensional finite element (3D FEM) model of a road tunnel excavated in fair blocky limestone in eastern Egypt using ABAQUS/CAE 2019...

Mamdouh E. Osman, A. Osman, Nabil M. Nagy et al. · 0 citations
Open access Sep 2026

Numerical Analysis and Design of Short Reinforced Concrete Columns Subjected to Axial Load and Biaxial Bending Using Abaqus

Short reinforced concrete (RC) columns in multistory structures are frequently subjected to combined axial load and biaxial bending arising from wind, seismic actions, and construction eccentricities. Accurate prediction of their nonlinear response remains challenging due to complex stress interactions and limitatio...

Eyaramuonan Charles Arogo · 0 citations
Open access Oct 2026

Mechanical response of large-span variable-cross-section tunnels: insights from numerical simulation and field monitoring

Surrounding rock deformation and loosening zone thickness are critical parameters for tunnel support design and stability evaluation. This study examined the variable-cross-section Qingshan Tunnel on the Ren-Zun Expressway. Systematic field monitoring measured surrounding rock pressure, displacement, and loosening zone...

Nai-Tao Zheng, You-Yun Li, Zhi-Feng Wang et al. · 0 citations
Open access Aug 2026

Development and Implementation of a Dam–Abutment Contact Rheological Model for Peripheral-Joint Deformation Analysis of an Extra-High Concrete-Faced Rockfill Dam in a Narrow Valley

Concrete-faced rockfill dams (CFRDs) constructed in narrow and steep valleys are strongly influenced by the mechanical interaction between the dam body and abutment bedrock. Under long-term construction and reservoir impoundment, time-dependent frictional slip along the dam–abutment interface may alter deformation tran...

Junjie Wu, Jinyong Fan, Guo-Ying Li et al. · 0 citations
Conference Open access 2026

Dementalization of Underground Mine Roadway Support Systems Using GFRP Structural Elements

This paper addresses the critical issue of high metal intensity and corrosion degradation in underground mine support systems by introducing an alternative non-metallic solution. The research proposes a low-metal-intensity combined dual-level rock bolting system where traditional steel SVP-19 profiles and retaining p...

V. Ruskykh, O. Haidai, I. Filippov et al. · 0 citations
Open access Sep 2026

Displacement component-based modeling of reinforced concrete columns in SAP2000: Validation against experimental and OpenSees results

Accurate estimation of lateral displacement in reinforced concrete (RC) columns is essential for performance-based seismic assessment. Total lateral displacement consists of flexural, bar-slip, and shear deformation components; however, commercial structural analysis platforms such as SAP2000 generally consider only fl...

Sıla Avğın, M. M. Köse, E. Biçici · 0 citations

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