https://asps-journals.com/index.php/jgg <p>The Journal of Geomechanics and Geoengineering (ISSN 2716-7992) is concerned by communicating recent and projected advances in the application of the principle of mechanics to earth-materials and covers many engineering disciplines such as foundation engineering, slope engineering, tunneling, rock engineering, engineering geology, geotechnical earthquake engineering and geo-environmental engineering.</p> Alwaha Scientific Publishing Services SARL (ASPS) en-US Journal of Geomechanics and Geoengineering 2716-7992 <p>ASPS journals are a peer-reviewed and dedicated to engineering sciences and technology. The ASPS journals provide immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.</p> <p>Upon acceptance of an article, the corresponding author will be directed to sign a copyright form on behalf of coauthor(s). 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In this case, there is no Submission, Publication or Processing fees on the charge of the authors.</p> <p>In the <a title="Copyright form" href="https://asps-journals.com/download/JGG/Copyright_Form.doc"><u>copyright form</u></a>,, author(s) of the accepted article agree to the following terms:</p> <p>i) The article has not been previously published, elsewhere either in print or on-line, nor is it before another journal for consideration (If not, email explanation should be communicated immediately to the Editor).</p> <p>ii) The responsibility for the contents of the paper rests upon the authors.</p> <p>iii) The paper has been prepared according to the research and publication ethics listed the copyright form, also available in ASPS Website.</p> <p>iv) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in the ASPS journal.</p> <p>v) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in the ASPS journal.</p> <p>vi) Authors are permitted to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access). Any such posting made before acceptance and publication of the Work shall be updated upon publication to include a reference to the ASPS journal and a link to the online abstract for the final published Work in the Journal.</p> https://asps-journals.com/index.php/jgg/article/view/444 <p>Many factors, including soil permeability and mechanical properties, upstream side slope, drawdown ratio, and drawdown rate, influence the stability of an earth dam during sudden drawdown. This paper investigates the influence of rapid drawdown on earth dam upstream slope stability and its role in the change of pore water pressure at different locations and factor of safety of the upstream slope. To achieve the aim of this study, the Sidi Abdelli dam was taken as a case study by using the Geo-SLOPE/W program based on the limit equilibrium method. The results show that the pore water pressures are very low at the toe of the dam and then increase as the initiation of pore water dissipation from the dam and then decrease as the elevation, as well, the velocity vectors start to exit from the upstream side, the possible seepage face is on the upstream side. As well as, the factor of safety of the upstream slip surface decrease with the initiation of rapid drawdown, the upstream slope is no in a safe stability condition. But, after 13 days the factor of safety increases above value 1.00, that is means the upstream slope will be in a safe condition.</p> Hicham Charrak Nadia Smail Bouchrit Rouissat Hamza Basri Almoutaz Bellah Alsamawi Copyright (c) 2024 Hicham Charrak, Nadia Smail, Bouchrit Rouissat, Hamza Basri, Almoutaz Bellah Alsamawi https://creativecommons.org/licenses/by/4.0 2024-01-30 2024-01-30 2 1 6 10.38208/jgg.v2.444 https://asps-journals.com/index.php/jgg/article/view/783 <p>In the context of soil-structure interaction, often underestimated in design codes, accurate anticipation of dynamic amplification and foundation displacements has become increasingly crucial. Recent earthquakes like Mexico City (1985), Loma Prieta (1989), Port-au-Prince (2010), and Kumamoto (2016) highlighted the need for robust methods to analyze these complex nonlinearities. While both nonlinear and equivalent linear approaches offer valuable insights, limitations in computational efficiency and implementation can hinder their practical application. This paper addresses these challenges by presenting the formal development of a novel quasi-nonlinear method for real-time seismic response analysis, building upon the principles introduced by the author. This innovative approach, unlike traditional equivalent linear methods, dynamically calculates mean shear moduli and local secant stiffnesses, integrating them into a Newmark-based solution process. The paper further validates the method against the Santa Cruz earthquake (Loma Prieta 1989) on a sandy soil profile, demonstrating remarkable agreement with reference solutions obtained using established methods like Shake91 and Quad4m. This comprehensive formulation paves the way for accurate and efficient real-time reconstruction of seismic responses within a practical quasi-nonlinear framework.</p> Yacine Bakhtaoui Copyright (c) 2024 Yacine Bakhtaoui https://creativecommons.org/licenses/by/4.0 2024-02-26 2024-02-26 2 7 14 10.38208/jgg.v2.783