A methodology for selecting the required cross-section of a self-supporting retaining bulkhead, on a vertical excavation front, of an energy conduit passage trench

Zachos, Dimos; Bakalis, G.; Bakalis, Konstantinos; Alamanis, Nikolaos; Papageorgiou, Grigorios; Xafoulis, Nikolaos

doi:10.1007/s12667-021-00429-9

Cited by 9 publications

(5 citation statements)

References 6 publications

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“…The very interesting book of Komodromos A. [7], was chosen for the development of the theoretical background of Soil Mechanics (room 1) and especially for the methods of buttress and design of earthy soils, as well as the articles of Alamanis Nikolaos et al [8], Aikaterini Alexiou et al [9] and Dimos Zachos et al [10]. The very interesting works of Alamanis N., Dakoulas P. [11], [12] take into consideration the effect that spatial variability of the soil properties have on the seismic behavior of the soil slopes, knowledge which is necessary for the way of their buttressing were also a source for the puzles.…”

Section: Literature Reviewmentioning

confidence: 99%

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Assessing Multiple Engineering Tasks via Escape Room Game

Alamanis

Lokkas

Xafoulis

et al. 2023

Preprint

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Education as a concept includes every effort to train and develop people and their skills by applying the appropriate tools. One type of education is the formal, which includes a logically built and organized curriculum that is under the jurisdiction of state mechanisms. However, there is also a non-formal education which, unlike the formal one, refers to all organized educational programs that take place outside the institutional framework of formal education and are usually voluntary and short in duration. It is mainly addressed to adults and does not have to provide a document certifying education in this field. In this context, the present work, adopting the research methodology based on design, aims to develop and formulate a mobile augmented reality game in the form of escape room/s targeting to train engineers. "Escape Rooms" is the name of an interesting trend of modern times that has flourished in the last decade in many countries around the world. These are puzzle and composition games, in which participants are asked to work together and solve problems using the information that exists in the room/s in order to unlock the door and escape. These types of games belong to the broader category of escape games, but differ from the rest due to the live interaction they provide with the environment. The main benefits of these games are the promotion of collaboration, the development of problem-solving strategies, critical thinking, imagination and creativity, elements that are necessary for the professional activity of an engineer. Escape rooms require teamwork, communication, initiative, as well as critical thinking and attention to detail along with an ability to apply a wide range of knowledge and effective methods under the pressure of time. The purpose of this paper is the evaluation of advanced students, through a series of high level and content of polytechnic questions, in the context of group collaborations that are formed during the coexistence of students in escape rooms, where an augmented reality is incorporated. Finally, the aim of this work is the implementation and evaluation of one or more thematic escape rooms regarding the mobilization, satisfaction and involvement of polytechnic students in puzzles and problems that require significant engineering knowledge.

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Section: Literature Reviewmentioning

confidence: 99%

“…Making use of the maximum values 𝑀 𝑚𝑎𝑥 and 𝑄 𝑚𝑎𝑥 that was found for bending moment and shear force in the previous room, the students here have now to determine the dimensions of the beam's cross-section, applying the corresponding knowledge of the Mechanics of materials [10], [11].…”

Section: Strength Of Materials' Roommentioning

confidence: 99%

Assessing Multiple Engineering Tasks via Escape Room Game

Alamanis

Lokkas

Xafoulis

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…The design related on the shear behavior of a soil material is of particular interest because it has a direct impact on practical problems of bearing capacity [1,2], stability of slopes and embankments [3][4][5] as well as permanent seismic movements of slopes [6][7][8]. The safe construction and operation of many technical projects often requires the improvement of the properties and mechanical behavior of the soil formations that appear in their area.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Cement Type and Granulometry on the Injectability of Suspension Grouts for Soil Improvement – A Mini Review

Christodoulou

2023

JOJMS

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The safe construction and operation of many engineering projects often requires the improvement of the properties and mechanical behavior of the soil formations occurring in their area. Impregnation injections are one of the oldest methods of improving soil formations and present a wide range of applications. The injectability and penetrability of cement-based slurries are significantly affected by factors such as cement granulometry, water-to-cement ratio, grain size and degree of sand compaction, type and dosage of slurry admixtures, mixing process and the impregnation pressure. The object of this paper is to investigate the effect of cement suspensions type and granulometry on the injectability and penetrability within soil formations.

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Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of Cement Suspensions Injectability into Sands

Dimitrios

2022

AMMS

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A laboratory investigation was conducted in order to evaluate the injectability of cement suspensions. Four gradations from CEM II/B-M (according to EN 197-1) type of cement were used having nominal maximum grain sizes of 100μm, 40μm, 20μm and 10μm. The properties of suspensions, with water to cement (W/C) ratios of 1:1, 2:1 and 3:1 by weight, were determined in terms of bleeding and setting times. Injectability was evaluated by conducting one-dimensional injections into five different, clean sands using a specially constructed device. Injectability of cement suspensions increases with increasing cement fineness and water to cement (W/C) ratio. Microfine cement suspensions with water to cement (W/C) ratios of 2:1 and 3:1 can penetrate into medium to fine sands.

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A methodology for selecting the required cross-section of a self-supporting retaining bulkhead, on a vertical excavation front, of an energy conduit passage trench

Cited by 9 publications

References 6 publications

Assessing Multiple Engineering Tasks via Escape Room Game

Assessing Multiple Engineering Tasks via Escape Room Game

The Effect of Cement Type and Granulometry on the Injectability of Suspension Grouts for Soil Improvement – A Mini Review

Experimental Evaluation of Cement Suspensions Injectability into Sands

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