Assaf Klar

2024

A novel mechanical energy storage solution using underground CO2 hydrate capsules

Lev Yehudi, O., Franza, A., von Solms, N. & Klar, A., 26 Aug 2024, Proceedings of the XVIII ECSMGE 2024. p. 3094-3099

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Failure analyses of open-ended pre-stressed high-strength concrete pile during driving: insights from distributed fiber optic sensing

Zhu, H. H., Wang, J., Zhang, W., Suo, W. B., Shi, B. & Klar, A., 2024, (Accepted/In press) In: Acta Geotechnica.

Research output: Contribution to journal › Article › peer-review

Introducing tunnel kinematic constraints into an elastic continuum formulation of tunnel-soil-pipeline interaction

Klar, A., Franza, A., Zhou, M. & Huang, H.-W., 16 May 2024, In: Geotechnique.

Research output: Contribution to journal › Article › peer-review

Open Access

2023

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

Klar, A., Nissim, O. & Elkayam, I., Nov 2023, In: Journal of Rock Mechanics and Geotechnical Engineering. 15, 11, p. 2816-2830 15 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2022

A Fourier-based elastic continuum solution for jointed pipeline response to tunneling

Klar, A., Jan 2022, In: Tunnelling and Underground Space Technology. 119, 104237.

Research output: Contribution to journal › Article › peer-review

Open Access

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

Klar, A. & Shoham, E., 1 Aug 2022, In: Journal of Geotechnical and Geoenvironmental Engineering. 148, 8, 07022017.

Research output: Contribution to journal › Article › peer-review

Micromechanical modeling of the effect of dissociation on the mechanical response of hydrate-bearing sediments

Cohen, E. & Klar, A., Aug 2022, In: Granular Matter. 24, 3, 84.

Research output: Contribution to journal › Article › peer-review

Optical fiber measurement of local strains in a ribbed bar

Leibovich, O., Yankelevsky, D. Z., Klar, A. & Elkayam, I., Dec 2022, In: Structural Concrete. 23, 6, p. 3383-3396 14 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Underground solar energy storage via energy piles: An experimental study

Ma, Q., Wang, P., Fan, J. & Klar, A., 15 Jan 2022, In: Applied Energy. 306, 118042.

Research output: Contribution to journal › Article › peer-review

2021

Simplified stress-strain models applied to data from triaxial and pressuremeter tests on London Clay

Vardanega, P. J., Bolton, M. D., Haigh, S. K., Whittle, R. W., Klar, A. & Williamson, M. G., 2021, Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022. Elshafie, M. Z. E. B., Viggiani, G. M. B. & Mair, R. J. (eds.). p. 430-437 8 p. (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Open Access

2020

Soil Support Characterization in Slab-on-Grade Constructions with Fiber-Optic Distributed Strain Sensing

Levenberg, E., Klar, A. A. & Skar, A., 2020, In: Geotechnical Special Publication. 2020-February, GSP 315, p. 370-378 9 p.

Research output: Contribution to journal › Conference article › peer-review

Open Access

2019

A cohesionless micromechanical model for gas hydrate-bearing sediments

Cohen, E. & Klar, A., 1 May 2019, In: Granular Matter. 21, 2, 36.

Research output: Contribution to journal › Article › peer-review

Open Access

Evaluation of horizontal stresses in soil during direct simple shear by high-resolution distributed fiber optic sensing

Klar, A., Roed, M., Rocchi, I. & Paegle, I., 1 Sep 2019, In: Sensors (Switzerland). 19, 17, 3684.

Research output: Contribution to journal › Article › peer-review

Open Access

Leakage-induced pipeline stressing and its potential detection by distributed fiber optic sensing

Klar, A., Linker, R. & Herrmann, S., Jun 2019, In: Geotechnical Engineering. 50, 2, p. 85-90 6 p.

Research output: Contribution to journal › Article › peer-review

Load-independent characterization of plate foundation support using high-resolution distributed fiber-optic sensing

Skar, A., Klar, A. & Levenberg, E., 2 Aug 2019, In: Sensors (Switzerland). 19, 16, 3518.

Research output: Contribution to journal › Article › peer-review

Open Access

Micromechanical investigation of stress relaxation in gas hydrate-bearing sediments due to sand production

Cohen, E., Klar, A. & Yamamoto, K., 4 Jun 2019, In: Energies. 12, 11, 2131.

Research output: Contribution to journal › Article › peer-review

Open Access

Nonlinear elastoplastic formulation for tunneling effects on superstructures

Elkayam, I. & Klar, A., 2019, In: Canadian Geotechnical Journal. 56, 7, p. 956-969 14 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Spatial distribution of yield accelerations and permanent displacements: A diagnostic tool for assessing seismic slope stability

Mathews, N., Leshchinsky, B. A., Olsen, M. J. & Klar, A., Nov 2019, In: Soil Dynamics and Earthquake Engineering. 126, 105811.

Research output: Contribution to journal › Article › peer-review

Open Access

2018

A Comparative Study of Greenfield Tunnelling in Sands: FEM, DEM, and Centrifuge Modelling

Song, G., Franza, A., Elkayam, I., Marshall, A. M. & Klar, A., 2018, Trends in Mathematics. p. 337-345 9 p. (Trends in Mathematics).

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Open Access

Elastic continuum solution for tunneling effects on buried pipelines using fourier expansion

Klar, A., 1 Sep 2018, In: Journal of Geotechnical and Geoenvironmental Engineering. 144, 9, 04018062.

Research output: Contribution to journal › Article › peer-review

Geomechanical aspects

Klar, A. & Uchida, S., 1 Jan 2018, Gas Hydrates 2: Geoscience Issues and Potential Industrial Applications. p. 179-218 40 p.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Upper bound of tunnel face stability using asymmetric yielding

Elkayam, I. & Klar, A., Dec 2018, In: Underground Space (China). 3, 4, p. 288-296 9 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2017

Detection of sinkhole formation by strain profile measurements using BOTDR: Simulation study

Linker, R. & Klar, A., 1 Mar 2017, In: Journal of Engineering Mechanics. 143, 3, B4015002.

Research output: Contribution to journal › Article › peer-review

Superstructure-foundation interaction in multi-objective pile group optimization considering settlement response

Leung, Y. F., Klar, A., Soga, K. & Hoult, N. A., 2017, In: Canadian Geotechnical Journal. 54, 10, p. 1408-1420 13 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2016

Design Oriented Linear-Equivalent Approach for Evaluating the Effect of Tunneling on Pipelines

Klar, A., Elkayam, I. & Marshall, A. M., 1 Jan 2016, In: Journal of Geotechnical and Geoenvironmental Engineering. 142, 1, 04015062.

Research output: Contribution to journal › Article › peer-review

Enhanced strain-softening model from cyclic full-flow penetration tests

Pinkert, S. & Klar, A., 1 Mar 2016, In: Journal of Geotechnical and Geoenvironmental Engineering. 142, 3, 04015087.

Research output: Contribution to journal › Article › peer-review

In situ profiling of soil stiffness parameters using high-resolution fiber-optic distributed sensing

Klar, A., Uchida, S. & Levenberg, E., 1 Aug 2016, In: Journal of Geotechnical and Geoenvironmental Engineering. 142, 8, p. 4016032 1 p.

Research output: Contribution to journal › Article › peer-review

Sand production model in gas hydrate-bearing sediments

Uchida, S., Klar, A. & Yamamoto, K., 1 Jul 2016, In: International Journal of Rock Mechanics and Mining Sciences. 86, p. 303-316 14 p.

Research output: Contribution to journal › Article › peer-review

Sand production modeling of the 2013 nankai offshore gas production test

Uchida, S., Klar, A. & Yamamoto, K., 2016, Energy Geotechnics - Proceedings of the 1st International Conference on Energy Geotechnics, ICEGT 2016. Wuttke, F., Bauer, S. & Sánchez, M. (eds.). p. 451-458 8 p. (Energy Geotechnics - Proceedings of the 1st International Conference on Energy Geotechnics, ICEGT 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Sensing for smart infrastructure: Prospective engineering applications

Klar, A., Levenberg, E., Tur, M. & Zadok, A., 2016, Transforming the Future of Infrastructure through Smarter Information - Proceedings of the International Conference on Smart Infrastructure and Construction, ICSIC 2016. Parlikad, A. K., Schooling, J. M., Soga, K., Mair, R. J. & Jin, Y. (eds.). p. 289-295 7 p. (Transforming the Future of Infrastructure through Smarter Information - Proceedings of the International Conference on Smart Infrastructure and Construction, ICSIC 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Session report on design using in-situ tests

Klar, A., 2016, Proceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016. Acosta-Martinez, H. E., Lehane, B. M. & Kelly, R. (eds.). p. 211-215 5 p. (Proceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016; vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Thermo-Hydro-Chemo-Mechanical Formulation for CH₄-CO₂ Hydrate Conversion Based on Hydrate Formation and Dissociation in Hydrate-Bearing Sediments

Uchida, S., Deusner, C., Klar, A. & Haeckel, M., 2016, In: Geotechnical Special Publication. 2016-January, 270 GSP, p. 235-244 10 p.

Research output: Contribution to journal › Conference article › peer-review

2015

Benefits of Global Standards on the Use of Optical Fiber Sensing Systems for the Impact of Construction of New Utilities and Tunnels on Existing Utilities

Iten, M., Spera, Z., Jeyapalan, J. K., Duckworth, G., Inaudi, D., Bao, X., Noether, N., Klar, A., Marshall, A., Glisic, B., Facchini, M., Jason, J., Elshafie, M., Kechavarzi, C., Miles, W., Rajah, S., Johnston, B., Allen, J., Lee, H. & Leffler, S. & 4 others, Zadok, A., Hayward, P., Waterman, K. & Artieres, O., 2015, Pipelines 2015: Recent Advances in Underground Pipeline Engineering and Construction - Proceedings of the Pipelines 2015 Conference. Sever, V. F. & Osborn, L. (eds.). p. 1655-1666 12 p. (Pipelines 2015: Recent Advances in Underground Pipeline Engineering and Construction - Proceedings of the Pipelines 2015 Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Linear elastic tunnel pipeline interaction: The existence and consequence of volume loss equality

Klar, A. & Marshall, A. M., 1 Sep 2015, In: Geotechnique. 65, 9, p. 788-792 5 p.

Research output: Contribution to journal › Article › peer-review

On-specimen strain measurement with fiber optic distributed sensing

Uchida, S., Levenberg, E. & Klar, A., Jan 2015, In: Measurement: Journal of the International Measurement Confederation. 60, p. 104-113 10 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Th gme 09: Geomechanical effect of hydrate dibociationinduced streb relaxation

Uchida, S., Klar, A. & Yamamoto, K., 2015, 2nd EAGE Workshop on Geomechanics and Energy: The Ground as Energy Source and Storage. p. 25-29 5 p. (2nd EAGE Workshop on Geomechanics and Energy: The Ground as Energy Source and Storage).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review