Experimental Study of Tsunami-Type Waves Impact on Soil near Foundation of Offshore Gravitational-Type Platforms

Abstract:

The need to study the problem of seabed local scour near offshore platforms has arisen in Russian Federation in connection with the activation of oil and gas production from fields located in coastal areas of seas (in accordance with the Energy Strategy for the period up to 2030, approved by the Government of the Russian Federation on November 13, 2009, No1715-p). Operation of offshore platforms is characterized by a number of features: shallow water areas; severe storm conditions; large transverse dimensions of structures that cause waves diffraction; the variety of used structure forms; the way of platform mounting on the seabed. During platform operation in the shallow waters, its basement soil is under an intense impact of sea waves, currents, as well as jets from engine of coming and berthing ships. The structure disturbs the natural wave flow. Near the platform, flow velocity increases, there are vortexes breakaway from platform corner edges. Scour holes appear and progress near platform foundation. Their location and measure depend on the parameters of external impacts, on the water depth, on the shape and dimensions of the foundation block.

• Periodical: Applied Mechanics and Materials (Volumes 725-726)
• Pages: 306-316
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.725-726.306
• Online since: January 2015
• Authors: Nikolay Dmitrievich Belyaev, Vladimir Valintinovich Lebedev, Anastasy Valerjevna Mishina, Igor Sergeevich Nudner, Konstantin Konstantinovich Semenov, Dmitry Igorevich Schemelinin
• Keywords: Offshore Platforms, Scour, Soil Density, Soil mechanics, Tsunami Waves

References

[1] Devis M. Kh., Mishchenko S.M. Eksperimentalnyye issledovaniya mestnykh razmyvov dna u osnovaniya morskikh gidrotekhnicheskikh sooruzheniy [Experimental studies of local scour the bottom of the sea at the bottom of waterworks]. Proceedings of the VNIIG. 2000. Vol. 236. Pp. 140–151. (rus).

[2] Mikhalev M.A. O modelirovanii mestnogo razmyva rusla za vodosbrosnymi plotinami [Modeling of channel erosion downstream spillway dams]. Magazine of Civil Engineering. №. 2(37). 2013. Pp. 67−74. (rus).

DOI: 10.5862/mce.37.10

[3] Khalfin I. Sh. Vozdeystviye voln na morskie neftegazopromyslovyye sooruzheniya [The impact of waves on the offshore oil and gas facilities]. Moscow: Nedra, 1990. 313 p. (rus).

[4] Shchemelinin L.G., Utin A.V., Belyaev N.D., Lebedev V.V., Nudner I.S., Semenov K.K. Experimental studies of means efficiency for protection of sea bed soil from erosion caused by external factors near offshore structures. Proceedings of the ISOPE. 2014. TPC-0320.

[5] Belyaev N.D. Zaschita osnovaniy ledostoiykykh platform ot razmyva [Protection of ice-resistant platform's foundations from scour]. Predotvraschenie avariy zdaniy i sooruzheniy [Prevent accidents, buildings and structures]. Collection of papers. No. 8. Moscow, 2009. Pp. 228–236 (rus).

[6] Bellendir Ye.N., Beiiayev B.V., Mironov M. Ye. Mestnyye razmyvy u platform dlya obustroystva neftegazovykh mestorozhdeniy pri sovmestnom deystvii voln i techeniy [Local erosion of platforms for oil and gas fields under the combined action of waves and currents]. Proceedings of the VNIIG. 2003. Vol. 242. Pp. 208–214. (rus).

[7] Bellendir Ye.N. Naychnoe obosnovaniye proyektirovaniya gravitatsionnykh opornykh blokov morskikh ledostoiykykh platform i ikh sopriazgeniya c gruntovym osnovaniem [Scientific substantiation of the gravitational support block's design for offshore ice-resistant platforms and coupling them with foundation]. Doctoral dissertation. St. Petersburg: VNIIG, 2006. 284 p.

[8] Carstens T. Seabed scour by currents near platforms. Proceedings of the POAC. 1975. Pp. 991–1006.

[9] Dahlberg R. Observations of scour around offshore structures. Can. Geotechn. Journal. 1983. V. 20, № 4. Pp. 617-628.

DOI: 10.1139/t83-071

[10] Niedorora A.W., Dalton C., Bea R.G. The descriptive physics of scour in the ocean environment. Proceedings of the OTC. Houston. 1981. OTC 4145. Pp. 297-305.

[11] Ninomiya K., Tagaya K., Murase Y. A study on suction and scouring of sit-on-bottom type offshore structure. Proceedings of the OTC. Houston. 1972, OTC 1605. Pp. 873-887.

DOI: 10.4043/1605-ms

[12] Rytkonen J. Local scour and scouring protection of drilling platforms in the Arctic sea environment. Technical Research Centre of Finland (VTT). ESPOO. 1983. Research Notes 267. 88 p.

[13] Sheppard D.M., Niedoroda A.W. Local structure induced sediment scour. UFL/COEL-90/019. March 1990. 62 p.

[14] Sumer B.M., Fredsoe J. Wave scour around structures. Advances in Coastal Engineering. vol. 4. Singapore. World Scientific Publishing Co Pte Ltd. 1999. Pp. 191-249.

DOI: 10.1142/9789812797551_0005

[15] Belyaev N.D., Vilkevich V.V., Karas R.A. Uchet razlichnykh vidov potokov, vozdeystvuyushchikh na morskiye gidrotekhnicheskiye sooruzheniya [Consideration of the different types of flows that affect the marine waterworks]. St. Petersburg State Polytechnical University Journal. 2007. No. 49 (1). Pp. 177–185. (rus).

[16] Belyaev N.D. Inzgenernyye metody predotvrascheniya razmyva dna ot raboty sudovykh dvizhiteley [Engineering methods of preventing bottom from scour induced by ship propellers]. Abstract of PhD thesis. St. Petersburg, 1999. 160 p. (rus).

[17] Beliaev N.D. Review of protection methods against propeller erosion. Proceedings of the IV Int. Seminar on Renovation and Improvements to Existing Quay Structures. Technical University of Gdansk. Poland. 1997. V. 1. Pp. 5-12.

[18] Beliaev N.D. Some aspects of ship induced scouring action. Proceedings of the IV Int. Seminar on Renovation and Improvements to Existing Quay Structures. Technical University of Gdansk. Poland. 1997. V. 1. Pp. 13-16.

[19] Guangqi Chen, Lu Zheng, Yingbin Zhang, Simeng Dong, Yasuo Kasugai, Tsukasa Kawakami. Stability analysis of breakwater under seepage flow using DDA. Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. 2013. Nantes, France. 10 p.

DOI: 10.1115/omae2013-11605

[20] Harry Yeh, Wenwen Li. Tsunami scour and sedimentation. Fourth International Conference on Scour and Erosion. 2008. Pp. 95-106.

[21] Mathew J. Francis, Harry Yeh. Tsunami Inundation Scour of Roadways, Bridges and Foundations. Observations and Technical Guidance from the Great Sumatra Andaman Tsunami. EERI/FEMA NEHRP 2006 Professional Fellowship Report. 34 p.

[22] Nakamura T., Kuramitsu Y., Mizutami N. Tsunami scour around a square structure. Coastal Engineering Journal. V. 50, No. 2. 2008. Pp. 209-246.

DOI: 10.1142/s057856340800179x

[23] Nakamura T., Kuramitsu Y. and Mizutani N. Tsunami-Induced Local Scour around a Square Structure. Solutions to Coastal Disasters. 2008. Pp. 106-117.

DOI: 10.1061/40978(313)10

[24] Nakamura T., Mizutani K. and Kuramitsu Y. Local scour around a square structure due to runup tsunami. Coastal Structures. 2009. Pp. 1891-(1902).

DOI: 10.1142/9789814282024_0167

[25] Belyaev, N. D., Lebedev, V. V., Mishina, A. V., Nudner, I. S., Semenov, K. K., Schemelinin, D. I. Experimental'niye issledovaniya vosdeystviya uedinennykh voln tipa tsunami na grunt u osnocaniya morskikh gravitazionnykh platform [Experimental study of tsunami-type waves impact on soil near foundations of offshore gravitational-type platforms]. Magazine of Civil Engineering. №6 (50). 2014. Pp. 4-12. (rus).

DOI: 10.5862/mce.50.1

[26] Solopchenko, G. N. Izmeritel'naya technika i metrologiya [Measurement techniques and metrology], St. Petersbug, St. Petersburg State Polytechnical Univesity, (2011). (rus).

[27] Blokhin, A. V. Teoriya experimenta [Experiment theory], Minsk, (2003). (rus).