Degradation Processes in Civil Engineering Slopes in Soft Rocks

Miščević, Predrag; Cvitanović, Nataša Štambuk; Vlastelica, Goran

doi:10.1007/978-3-030-29477-9_12

Cited by 9 publications

(5 citation statements)

References 34 publications

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“…By its magnitude, the force from the structure has a considerable influence on stability, because it resists overturning and the occurrence of sliding at the same time with its (stabilizing) action. The favorable effect of the G force is most pronounced in massive, gravity retaining walls, but it also plays a significant role in other types of retaining walls (hollow and thin retaining walls) [3].…”

Section: Contribution To the Analysis Of Frequently Performed Reinfor...mentioning

confidence: 99%

“…It should be mentioned that in the process of checking the stability, when determining the total resistance of the wall, it is not desirable to include in the calculation the full amount of the passive resistance force (Ep) that occurs in front of the foundation. Considering that a certain displacement is required to activate the passive resistance, the functionality and usability of the structure are called into question, so it is advisable to include only a part of the force, 1/2 to 2/3 Ep [3]. A regular check of stability of the retaining wall includes four failure mechanisms [4]:…”

Section: Figure 2 Illustration Of Forces Acting On a Reinforced Concr...mentioning

confidence: 99%

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Contribution to the analysis of frequently performed reinforced concrete retaining walls

Kancijan,

Despinić,

Soldo

et al. 2023

E-Zbornik, Elektronički Zbornik Radova Građevinskog Fakulteta

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This paper presents the theoretical basis of dimensioning and an example of the calculation of a retaining wall. The first part provides an insight into the loads acting on retaining structures and the basic design principles according to Eurocode, common to all types of retaining walls. In the practical part of the paper, on the example of a reinforced concrete cantilever retaining wall with a height of 4 m, the calculation procedure for static and seismic actions is presented, using the European standards for geotechnical design, EN 1997-1 and the design of structures for earthquake resistance, EN 1998-5. For the other heights of the retaining walls defined by the task, due to the extensiveness and limited space of the paper, only the calculation results within the analysis of the results are presented. The conclusion of the analysis of the conducted calculation is given at the end of the paper.

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Section: Contribution To the Analysis Of Frequently Performed Reinfor...mentioning

confidence: 99%

Section: Figure 2 Illustration Of Forces Acting On a Reinforced Concr...mentioning

confidence: 99%

Contribution to the analysis of frequently performed reinforced concrete retaining walls

Kancijan,

Despinić,

Soldo

et al. 2023

E-Zbornik, Elektronički Zbornik Radova Građevinskog Fakulteta

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“…Since the geometry of these cellars is usually not regular, only a detailed measurement is appropriate to get the real geometry. The terrestrial laser scanning (TLS) method is able to measure the real geometry with imperfections (Zhao et al 2019), reduced the time required for the field measurement (Kordić et al 2019), monitoring the changes on coastal cliff faces (Rosser et al 2005), or slopes in civil engineering works (Miščević et al 2020), and can be the base of the numerical model of the cellar.…”

Section: Introductionmentioning

confidence: 99%

Historic subsurface dimension stone quarry and the stability of its galleries as a function of pillar width and thickness of cover bed

2022

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There are historic subsurface dimension stones in the capital of Hungary (Budapest) that were excavated in porous limestone. The stability of these subsurface openings is important, since most of them are located in urban areas, where existing buildings or new structures are planned to be built. The paper presents a detailed study considering the geometry of the system and the mechanical parameters of the limestone. The geometry of the cellar system was obtained using terrestrial laser scanning (TLS). The cover beds are few meters in thickness, and the width of the pillar is between 2.50 and 3.98 m, according to the measurements. The rock mass parameters which were used in the calculations were obtained from laboratory tests. A finite element (FEM) software Rocscience (RS2) were applied to model the stability of the galleries. Calculations were made for various geometries taking into account the thickness of cover beds and the width of pillars. Altogether 70 models were made. A surface load of 150 kN/m2 was also applied to model the buildings. New relationships between cover bed thickness, pillar width and displacements are outlined to compare these results to previous works. The strength reduction factor was also calculated for all geometries, indicating the changes in the stability of these underground quarries and pointing out the importance of cellar geometries.

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“…The main objective was to evaluate and study the stability of the parallel slope of the road and analyze its stability using the field and laboratory study and the use of the (RocPlane) program, The most important . Rock Unit Weight g/cm 3 2.2 g/cm 3 2.5 g/cm 3…”

Section: Introductionmentioning

confidence: 99%

دراسة ثبات منحدر الحجر الرملي الموازي لطريق ابورشادة الجبلي بمنطقة غريان – شمال غرب ليبيا

أبوالقاسم الأخضر,

امحمد أبودينة

2022

JOPAS

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يعد تقييم وتحليل ثبات المنحدرات الصخرية الآيلة للإنهيار من الأمور التي تستوجب دراسات مبنية على أسس علمية لتحديد نوع الإنهيار وكيفية حدوثه والعوامل المؤثرة فيه، فالكتل الصخرية التي تشكل المنحدرات غالبًا ما تحتوي على فواصل و انقطاعات صخرية فتشكل بذلك أنواع مختلفة من حالات الإنهيار سواء كان انهيار مستوى أو أسيفيني أو دوراني، وتزداد أهمية دراسة الإنهيارات الصخرية إذا كان وقوعها يؤدي لحدوث كوارث بشرية أو مادية ويعد الإنهيار المستوي أحد تلك الإنهيارات التي تحدث على المنحدرات الموازية للطرق الجبلية وقد رصدت هذه الدراسة حدوث حالات ضعف على منحدر حجر رملي موازي للطريق الجبلي ابورشادة بمنطقة غريان، ورصدت أيضاً عمليات انهيار لكتل من المنحدر وصلت بعضها للطريق؛ وبالدراسة المبدئية للمنحدر تبين وجود كتلة آيلة للإنهيار مفصولة من كتلة المنحدر الأصلي، فكان الهدف الرئيسي تقييم ودراسة ثبات المنحدر الموازي للطريق وتحليل استقراره بإستخدام الدراسة الحقلية والمعملية واستخدام برنامج (RocPlane)، وأهم النتائج المتحصل عليها حدوث تغير في قيم المحتوى المائي والتماسك وزاوية الاحتكاك مع كل تغير في كميات مياه تحت تأثير الإجهاد الرأسي وإجهاد القص المسلط من جهاز القص المباشر إذ تبين مع زيادة كمية المياه من5mm الى 25mm ثم mm50 انخفاض قيم التماسك الداخلي وقيم زاوية الاحتكاك، ومن النتائج حدوث تناقص في معامل الآمان كلما قل التماسك الداخلي، صاحبه تناقص في قوة المقاومة وارتفاع القوة الدافعة، ومن توصيات إزالة الجزء المفصول من الكتلــــــــة الآيل للانهيار.

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Degradation Processes in Civil Engineering Slopes in Soft Rocks

Cited by 9 publications

References 34 publications

Contribution to the analysis of frequently performed reinforced concrete retaining walls

Contribution to the analysis of frequently performed reinforced concrete retaining walls

Historic subsurface dimension stone quarry and the stability of its galleries as a function of pillar width and thickness of cover bed

دراسة ثبات منحدر الحجر الرملي الموازي لطريق ابورشادة الجبلي بمنطقة غريان – شمال غرب ليبيا

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