A hardening load transfer function for rock bolts and its calibration using distributed fiber optic sensing

Autor: Assaf Klar, Ori Nissim, Itai Elkayam

Publikováno v: Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 11, Pp 2816-2830 (2023)

Confinement of rock bolts by the surrounding rock formation has long been recognized as a positive contributor to the pull-out behavior, yet only a few experimental works and analytical models have been reported, most of which are based on the global

Externí odkaz: https://doaj.org/article/d9afffb3a50c4187b0538666b77cec59

Load-Independent Characterization of Plate Foundation Support Using High-Resolution Distributed Fiber-Optic Sensing

Autor: Asmus Skar, Assaf Klar, Eyal Levenberg

Publikováno v: Sensors, Vol 19, Iss 16, p 3518 (2019)

The evaluation of soil reaction in geotechnical foundation systems such as concrete pavements, mat- and raft foundations is a challenging task, as the process involves both the selection of a representative mechanical model (e.g., Winkler, Continuum,

Externí odkaz: https://doaj.org/article/92d603fbf9ee43ef88d85cc197d37194

Micromechanical Investigation of Stress Relaxation in Gas Hydrate-Bearing Sediments Due to Sand Production

Autor: Eitan Cohen, Assaf Klar, Koji Yamamoto

Publikováno v: Energies, Vol 12, Iss 11, p 2131 (2019)

Past experience of gas production from methane-hydrate-bearing sediments indicates that sand migration is a major factor restricting the production of gas from methane-hydrate reservoirs. One important geotechnical aspect of sand migration is the inf

Externí odkaz: https://doaj.org/article/96c266fcad794178b70cedf6e86884ea

Discussion of 'Role of Shear Deformability on the Response of Tunnels and Pipelines to Single and Twin Tunneling' by Andrea Franza and Giulia M. B. Viggiani

Autor: Assaf Klar, Etna Shoham

Publikováno v: Journal of Geotechnical and Geoenvironmental Engineering. 148

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f67b48e74f23fe07ab5857d8780c83b3
https://doi.org/10.1061/(asce)gt.1943-5606.0002860

Nonlinear elastoplastic formulation for tunneling effects on superstructures

Autor: Assaf Klar, Itai Elkayam

Publikováno v: Elkayam, I & Klar, A 2019, ' Nonlinear elasto-plastic formulation for tunneling effects on superstructures ', Canadian Geotechnical Journal, vol. 56, no. 7, pp. 956-969 . https://doi.org/10.1139/cgj-2018-0021

The paper presents a formulation for evaluating the effect of tunneling on existing buildings. The formulation involves the matrix condensation method to represent the response of a linear elastic building and macroelements to represent the nonlinear

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb39f324d87b739c37df8b7ed4da0f30
https://doi.org/10.1139/cgj-2018-0021