دوره 14، شماره 28 - ( 10-1397 )                   جلد 14 شماره 28 صفحات 11-20 | برگشت به فهرست نسخه ها

XML English Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

mehralizadeh H, makarchian M. Investigation of Load- Penetration Behavior of Spudcan Foundations in Single- Layered Clayey Soils. Journal Of Marine Engineering. 2019; 14 (28) :11-20
URL: http://marine-eng.ir/article-1-667-fa.html
مهرعلی زاده حجت، مکارچیان مسعود. بررسی عملکرد بار- نفوذ پی اسپادکن در خاک‌های تک‌لایه رسی. مهندسی دریا. 1397; 14 (28) :11-20

URL: http://marine-eng.ir/article-1-667-fa.html


دانشگاه بوعلی سینا
چکیده:   (394 مشاهده)
استفاده از اسپادکن به‌عنوان پی سکوی حفاری جکاپ مرسوم است. ابعاد مدل، تحکیم رس و نفوذ اسپادکن، مهم‌ترین مسائل در مدل‌سازی این نوع پی‌ها در رس هستند. در این مقاله نفوذ مخروط‌های CPT و پی اسپادکن در خاک رسی تک‌لایه مورد بررسی قرار گرفته است. برای مطالعه تاثیر مقاومت زهکشی نشده رس بر عملکرد بار- نفوذ اسپادکن از خاک اصلاح شده با 5 و 10 درصد سیمان استفاده شد؛ همچنین از دو مخروط CPT با قطرهای متفاوت جهت تخمین مقاومت برشی زهکشی نشده لایه رس استفاده شد. نتایج نشان داد که می‌توان از رس اصلاح شده با سیمان برای مدل‌سازی خاک با مقاومت‌های  متفاوت استفاده کرد، با این‌حال بایستی به تغییرات ضرایب ظرفیت باربری در دو حالت با و بدون سیمان دقت کرد. همچنین نتایج نفوذ مخروط‌های CPT نشان داد که در مدل‌سازی فیزیکی، می‌توان با دقت مناسب از مخروط‌های با قطر کوچکتر به‌جای مخروط‌های با قطر متداول بهره گرفت.
متن کامل [PDF 677 kb]   (147 دریافت)    
نوع مطالعه: مقاله پژوهشي | موضوع مقاله: Offshore Structure
دریافت: ۱۳۹۷/۲/۲۲ | پذیرش: ۱۳۹۷/۸/۲۹

فهرست منابع
1. McClelland, B., Young, A.G., and Remmes, B.D., (1982), Avoiding Jackup Rig Foundation Failures, Journal of Southeast Asian Geotechnical Society, Vol. 13, p. 151-188.
2. Young, A.G., Remmes, B.D., and Meyer, B.J., (1984), Foundation Performance of Offshore Jackup Drilling Rigs, Journal of Geotechnical Engineering, Vol. 110(7), p. 841-859. [DOI:10.1061/(ASCE)0733-9410(1984)110:7(841)]
3. Vazquez, J.H., Michel, R.P., Alford, J.H., Quah, M., and Foo, K.S., (2005), Jackup Units. A Technical Primer for the Offshore Industry Professional, www.bbengr.com and www.keppelfels.com.sg.
4. Poulos, H.G., (1988), Marine Geotechnics, Unwin Hymen, London.
5. MSL, (2002a), Assessment of the Effect of Wave-in-Deck Loads on A Typical Jack-Up, Offshore Technology Report 2001/034, UK Health and Safety Executive, HSE Books.
6. MSL, (2002b), Interpretation of Full-Scale Monitoring Data From A Jack-Up, Offshore Technology Report 2001/035, UK Health and Safety Executive, HSE Books.
7. Nelson, K., Smith, P., Hoyle, M., Stoner, R., and Yersavel, T., (2000), Jack-Up Response Measurements and the Underprediction of Spud-Can Fixity by SNAME 5-5A, Offshore Technology Conference, Paper OTC 12074.
8. Cassidy, M.J., Houlsby, G.T., Hoyle, M., and Marcom, M.R., (2002a), Determining Appropriate Stiffness Levels for Spudcan Foundations Using Jack-Up Case Records, International Conference on Offshore Mechanics and Arctic Engineering, Oslo, Norway. [DOI:10.1115/OMAE2002-28085]
9. Cassidy, M.J., Taylor, P.H., Taylor R.E., and Houlsby, G.T., (2002b), Evaluation of Long-Term Extreme Response Statistics of Jack-Up Platforms, Ocean Engineering, Vol. 29, p. 1603-1631. [DOI:10.1016/S0029-8018(01)00110-X]
10. Morandi, A.C., Karunakaran, D., Dixon, A.T., and Baerheim, M., (1998), Comparison of Full-Scale Measurements and Time Domain Irregular Sea Analysis for A Large Deepwater Jack-Up, Offshore Technology Conference, Paper OTC 8828.
11. SNAME, (2008), Guidelines for Site-Specific Assessment of Mobile jackup Units, Rev. 3, Technical and Research Bulletin 5-5A, Society of Naval Architects and Marine Engineers.
12. Reardon, M.J., (1986), Review of the Geotechnical Aspects of Jack-Up Unit Operations, Ground Engineering, Vol. 19(7), p. 21-26.
13. Zhang, A., Duan, M., Li, H., Zhao, J., and Wang, J., (2012), Prediction Methods of Spudcan Penetration for Jack-Up Units, China Ocean Engineering, Vol. 26(4), p. 591-602. [DOI:10.1007/s13344-012-0045-x]
14. Hossain, M.S., Hu, Y., Randolph, M.F., and White, D.J., (2005), Limiting Cavity Depth for Spudcan Foundations Penetrating Clay, Geotechnique, Vol. 55(9), p. 679-690. [DOI:10.1680/geot.2005.55.9.679]
15. Hossain, M.S., Randolph, M.F., Hu, Y., and White, D.J., (2006), Cavity stability and bearing capacity of spudcan foundations on clay, Proceeding of Offshore Technology Conference, Houston, OTC 17770. [DOI:10.4043/17770-MS]
16. Chew, S.H., Kamruzzaman, A.H.M., and Lee, F.H., (2004), Physicochemical and Engineering Behavior of Cement Treated Clays, Journal of Geotechnical and Geoenvironmental Engineering, Vol. 130, p.696-706. [DOI:10.1061/(ASCE)1090-0241(2004)130:7(696)]
17. Sarkar, G., Islam, M.R., Alamgir, M., and Rokonuzzaman, M., (2012), Study on the Geotechnical Properties of Cement Based Composite Fine-Grained Soil, International Journal of Advanced Structures and Geotechnical Engineering, vol. 1(2), p. 2319-5347.
18. Bayat, M., Asgari, M.R., and Mousivand, M., (2013), Effects of Cement and Lime Treatment on Geotechnical Properties of a Low Plasticity Clay, International Conference on Civil Engineering Architecture and Urban Sustainable Development, Tabriz, Iran.
19. Finnie, I.M.S., and Randolph, M.F., (1994), Punch-Through and Liquefaction Induced Failure of Shallow Foundations on Calcareous Sediments, International Conference on the Behaviour of Offshore Structures, Massachusetts, USA, Vol. 1, p. 217-230.
20. Tjahyono, S., (2011), Experimental and Numerical Modelling of Spudcan Penetration in Stiff Clay Overlying Soft Clay, PhD Thesis, National University of Singapore.
21. Hu, P., (2015), Predicting Punch-Through Failure of a Spudcan on Sand Overlying Clay, PhD thesis, University of Western Australia.
22. Vlahos, G., Martin, CM., Cassidy, M.J., (2001), Experimental Investigation of a Model Jack-Up Unit on Clay, International Offshore and Polar Engineering Conference, Stavanger, Norway.
23. Tani, K., and Craig, W.H., (1995), Development of Centrifuge Cone Penetration Test to Evaluate the Undrained Shear Strength Profile of a Model Clay Bed, Soils and Foundations, Vol. 35(2), p. 37-47. [DOI:10.3208/sandf1972.35.2_37]
24. Stark, T.D., and Delshaw J.E., (1990), Correlations of Unconsolidated- Undrained Triaxial Test and Cone Penetration Tests, Transportation Research Record Proceeding, Vol. 1278, p. 96-102.
25. Otoko, G.R., Manuel, I.F., Igwagu, M., and Edoh, C., (2016), Empirical Cone Factor for Estimation of Undrained Shear Strength, Electronic Journal of Geotechnical Engineering, Vol. 21(18), p. 6069- 6076, ejge.com.
26. Nwobasi, P.A., Egba, E.I., (2013), Estimation of Undrained Shear Strength of Soil using Cone Penetration Test, International Journal of Scientific and Engineering Research, Vol. 4(9), p. 409-420.
27. Skempton, A.W., (1951), The Bearing Capacity of Clays, Building Research Congress, London, Vol. 1(3), p. 180-189.
28. Hossain, M.S., Hu, Y., and Randolph, M.F., (2003), Spudcan Foundation Penetration into Uniform Clay, International Offshore and Polar Engineering Conference, Honolulu, Hawaii, USA.
29. Hossain, M.S., and Randolph, M.F., (2009), New mechanism-based design approach for spudcan foundations on single layer clay, Journal of Geotechnical and Geoenvironmental Engineering, Vol. 135(9), p. 1264-1274. [DOI:10.1061/(ASCE)GT.1943-5606.0000054]
30. Wang, C.X., and Carter, J.P., (2002), Deep Penetration of Strip and Circular Footings into Layered Clays, International Journal of Geomechanics, Vol. 22, p. 205–232. [DOI:10.1061/(ASCE)1532-3641(2002)2:2(205)]
31. Houlsby, G.T., and Martin, C.M., (2003), Undrained Bearing Capacity Factors for Conical Footings on Clay, Geotechnique, Vol. 535, p.513-520. [DOI:10.1680/geot.2003.53.5.513]

ارسال پیام به نویسنده مسئول


کلیه حقوق این وب سایت متعلق به نشریه علمی-پژوهشی مهندسی دریا می باشد.

طراحی و برنامه نویسی : یکتاوب افزار شرق

© 2019 All Rights Reserved | Journal Of Marine Engineering

Designed & Developed by : Yektaweb