تحليل العناصر المحدودة للأساسات الشريطية المتعرجة المرتكزة على منحدرات متماسكة
DOI:
https://doi.org/10.31272/jeasd.2832الكلمات المفتاحية:
اساس شريطي، قابلية تحمل، منحدرات، تحليل عناصر محددةالملخص
الأساسات على المنحدرات أو بالقرب منها (على سبيل المثال، أرصفة الجسور على سدود الاقتراب، وأساسات برج النقل، والمباني على منحدرات التلال) عندما يكون وجه المنحدر بمثابة حد محدود، مما يؤدي إلى تطوير غير مناسب وقبيح لمنطقة الفشل البلاستيكية كما تقترب المؤسسة من حالة الحد تحت التحميل المطبق. تم دراسة قدرة تحمل الأساس مع أو بدون تنورة مثبتة بالقرب من المنحدر الطيني باستخدام سلسلة من تحليلات العناصر المحدودة باستخدام برنامج Geo-slope. بالنسبة للموضوع قيد البحث، تم إجراء عدد من النماذج بأعماق تنورة متفاوتة وانحدار قمة الرضاعة. يتم أيضًا تناول تأثير ميل المنحدر والارتفاع وقوة القص غير المعالجة للتربة. وأظهرت نتائج الدراسة أن عدداً من العوامل تغير بشكل كبير تقدير قدرة التحمل وفعالية كبيرة في زيادة قدرة التحمل بحوالي 18.6%، 40.6%، 45.3%؛ 30%، 34% و 40%؛ 26.9 و32.7% و38.5% و25% و33.3% و52.7%؛ 8%، 19.6% و8.3%؛ 16.7%، 20.8% لـ D/B = 0.5، 1 و1.5 وL/B = 0، 1، 4 و8 على التوالي، و18.2%، 36.4، 57.6%؛ 11.6%، 17.6%؛ 27.9% كيلو باسكال، لـ D/B = 0.5 و1 و1.5 وL/B = 0 و1 و4 و8 على التوالي في حالة ميل المنحدر β=10° مع H/B =2 وCu=60 كيلو باسكال لـ D/B (عمق التنورة/عرض الأساس) = 0.5 و1 و1.5 وL/B (المسافة من ميل الحافة/عرض الأساس) = 0 و1 و4 و8 مع Cu=20 كيلو باسكال على التوالي في حالة المنحدر β=10° الميل مع H/B =2، كما أن نسبة L/B الحرجة هي 4 وبعد ذلك أصبحت الزيادة في قدرة التحمل ثابتة. لقد وجد أن قدرة التحمل للأساسات ذات الحواف تنمو مع زيادة ميل المنحدر، ولكنها تقل عندما يزداد عمق الحافة وقوة قص التربة.
المراجع
T. Schanz and Y. Al-Badran, “Swelling Pressure Characteristics of Compacted Chinese Gaomiaozi Bentonite GMZ01,” Soils and Foundations, vol. 54, no. 4, pp. 748–759, Aug. 2014, doi: https://doi.org/10.1016/j.sandf.2014.06.026.
A. M. Mosa, A. H. Taher, and L. A. Al-Jaberi, “Improvement of Poor Subgrade Soils Using Cement Kiln Dust,” Case Studies in Construction Materials, vol. 7, pp. 138–143, Dec. 2017, doi: https://doi.org/10.1016/j.cscm.2017.06.005.
A. S. T. Al-Madhhachi, G. J. Hanson, G. A. Fox, A. K. Tyagi, and R. Bulut, “Measuring Soil Erodibility Using a Laboratory ‘Mini’ JET,” Transactions of the ASABE, vol. 56, no. 3, pp. 901–910, Jul. 2013, doi: https://doi.org/10.13031/trans.56.9742.
A. Sabah Al Amli, N. . Al-Ansari, and J. . Laue, “Behavior Of Reinforcement Bars In Foundation With Soil To Satisfy Sustainability," J. eng. Sustain. dev., vol. 27, no. 5, pp. 558–564, Sep. 2023, doi: https://doi.org/10.31272/jeasd.27.5.1.
M. Elmeligy, A. Altahrany, and T. AL-Shyoukhi, "Bearing capacity and settlement of inclined skirted foundation resting on sand," Results in Engineering, vol. 20, no.2, pp. 111- 118, 2023, https://doi.org/10.1016/j.rineng.
T. Qin, M. Yuan, and Li Y. B. Wang "Analysis of Bearing Performance of Monopile and Single Suction Bucket Foundation for Offshore Wind Power under Horizontal Load," Geofluids, vol., 2022, https://dx.doi.org/10.1155/2022/4163240
S. Fan, S. Li, Shen Z. Y. Zhang "Numerical analysis of the post-installation consolidated response of skirted foundations," Computers and Geotechnics, vol.166, no.4.
P.G. Watson and M. Randolph "Vertical capacity of caisson foundations in calcareous sediments," Proceeding of the 7th International Offshore Polar Engineering Conference, Honolulu. International Society of Offshore and Polar Engineers (ISOPE), vol. 1, pp. 784-790, 1997, https://publications.isope.org/proceedings/ISOPE/ISOPE%201997/papers/I97v1p784.
M.F. Bransby and M. Randolph "The effect of skirted foundation shape on response to combined V-M-H loadings," International Journal of Offshore and Polar Engineering, vol. 9, no. 3, pp. 214–218., 1999, https://www.researchgate.net/publication/254190211
M. Y. Al-Aghbari and Y.E.A. Mohamedzein "Bearing capacity of strip foundations with structural skirts" Journal of Geotechnical and Geological Engineering, vol. 22, no. 1, pp. 43-57, 2004, https://dx.doi.org/10.1023/B:GEGE.0000013997.79473.
M.Y. Al-Aghbari and Y.F.A. Mohamedzein "Improving the performance of circular foundations using structural skirts" Ground Improvement, vol. 10, no. 3, pp. 125-132, 2006, https://doi.org/10.1680/grim.2006.10.3.125.
M.Y. Al-Aghbari and Y.F.A. Mohamedzein "The Use of Skirts to Improve the Performance of a Footing in Sand," International Journal of Geotechnical Engineering, pp. 1-8. 2018, doi: https://doi.org/101.1080/19386362.2018.1429702.
O.A. Alansari, A.M. Odeh, M.N. Nasr, H.A. Sadek, and H.T. Eid "A comparative study on the behavior of square foundations resting on confined sand," Canadian Geotechnical Journal, vol. 46, no. 4, pp. 438-453, 2009, https://dx.doi.org/10.1139/T08-134.
H.T. Eid "Bearing capacity and settlement of skirted shallow foundations on sand" International Journal of Geomechanics ASCE, vol. 13, no. 5, pp. 645-652, 2013, https://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000237.
B.C. Bienen, M. J. Gaudin, L. Raush, O.A. Purwana, and H. Krisdani " Numerical Modeling of a Hybrid Skirted Foundation under Combined Loading" Computer and Gotechnics, vol. 45, pp. 127- 139, 2012 doi: https://doi.org/10.1016/J.COMPGEO.2012.05.009.
M.R. Mahmood, M.Y. Fattah, A. Khalaf "Experimental Study on Bearing Capacity of Skirted Foundations on Dry Gypseous Soil," International Journal of Civil Engineering and Technology (IJCIET) Volume 9, Issue 10, pp. 1910–1922, 2018 https://www.iaeme.com/ijciet/issues.as.
M.Y. Fattah, S.A. Al-Haddad, M. Hameedi “Load Carrying Capacity of Rectangular Foundation on Geogrid Reinforced Sloped Sandy Soil," IOP Conference Series Materials Science and Engineering, vol. 737, 2020, doi: https://doi.org/10.1088/1757-899X/737/1/012094.
P. Katariya, P. M. G. Vanza "Behaviour of Skirted Foundation Under Different Loading Conditions Using FEM Approach," Soil Dynamics, Earthquake and Computational Geotechnical Engineering. IGC 2021. Lecture Notes in Civil Engineering, vol. 300. Springer,2021,
K.A. Al-Juari, M.Y. Fattah, and M.N.G. Alzaidy "Behavior of Circular Skirted Footing on Gypseous Soil Subjected to Water Infiltration," Journal of the Mechanical Behavior of Materials, vol. 32, no. 20, 2023, https://doi.org/10.1515/jmbm.
A. Tadayo, A. Eslami & K. Fakharian "Geotechnical Behavior of Conical and Skirted Foundations Through Experimental and Numerical Assessment." Transportation Infrastructure Geotechnology, 2024, https://doi.org/10.1007/s40515-024-00380-z.
A.Z. El-Wakil, W.R. Azzam "Experimental and numerical studies of circular footing resting on confined granular subgrade adjacent to slope" Int J Geomech ASCE, vol. 16, no. 1, pp. 1-15, 2015, https://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000500
R.S. Jakka, R.P. Shukla "Discussion on experimental and numerical studies of circular footing resting on confined granular subgrade adjacent to slope" Int J Geomech, vol. 17, no. 2, pp. 1-3, 2016, https://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000704
F. Qiu, S. Qin, K. Wei "Experimental and numerical investigation into the effect of skirted caisson on local scour around the large-scale bridge foundation" Ocean Engineering, vol. 250, no.12, 2022 https://doi.org/10.1016/j.oceaneng.2022.111052.
M. Mohammadizadeh, B. Nadi, A. Hajiannia "The undrained vertical bearing capacity of skirted foundations located on slopes using finite element limit analysis," Innovative Infrastructure, vol. 8, no. 121, 2023 https://doi.org/10.1007/s41062-023-01070-4.
R. Acharyya, A. Dey "Response of Skirted Strip Footing Resting on Layered Granular Soil" Geotechnical and Geological Engineering, vol.41, no1., 2023, doi: https://doi.org/10.1007/s10706-022-02373-6.
Y. Zhang, L. Sun, X. Feng “The consolidation response of skirted foundations in normally consolidated clay” Ocean Engineering, vol. 296, 2024b, https://doi.org/10.1016/j.oceaneng.2024.117064.
B.H. Fellenius "Basics of Foundation Design," Electronic Edition, Ed.: available at www.Fellenius.net, 2006, https://www.fellenius.net/papers/428%20The%20Red%20Book,%20Basics%20of%20Foundation%20Design%202023.pdf.
Y. Lu, Y. Yang "Effect of Size on the Stability of Narrow Foundation Pits," Advances in Civil Engineering, vol. 2022, no.2 https://doi.org/10.1155/2022/7391622.
M.R. Mahmood, M.Y. Fattah, A. Khalaf "Experimental Investigation on the Bearing Capacity of Skirted Foundations on Submerged Gypseous Soil," Marine Geosciences & Geotechnology, 2020, vol. 38, No. 10, 1151–1162. https://doi.org/10.1080/1064119X.2019.1656311.
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الحقوق الفكرية (c) 2025 Hanan Adnan Hassan, Hadeel Ammar Mohammed, Najwa wasife jassim, Mohammed Yousif Fattah, Noor S. Al-Hassnawi (Author)
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