Error
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering

INTERACTION BETWEEN LONG PILES AND THE SOIL BODY EXPOSED TO NON-LINEAR DEFORMATIONS

Vestnik MGSU 4/2012
  • Telichenko Valeriy Ivanovich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Rector, +7 (495) 651-81-85, ext. 2482, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ter-Martirosyan Zaven Grigor'evich - Moscow State University of Civil Engineering (MSUCE) +7 (499) 261-59-88, Doctor of Technical Sciences, Professor, Chair, Department of Soil Mechanics, Beddings and Foundations, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 22 - 27

Theoretical and numeral solutions to the problem of interaction between a long pile and the heterogeneous soil body are considered in the article. It has been discovered that the distribution of stresses between bottom and side sections of a pile depends on elastic and plastic properties of soils and the pile length-to-diameter ratio. Optimal geometric parameters of a pile can be derived by means of the optimal stress distribution between side and bottom sections of a pile.

The problem of interaction between a long pile and the soil body (the half-space) may be reduced to the problem of interaction between the soil body and the cylinder that has limited dimensions, namely, the diameter of and the height of where is the length of a pile. Solution to the problem in question (section 3) was also obtained through the employment of the method of finite elements (FEM) implemented in the Plaxis-2D software in the elastic and plastic environment. The graphic representation of the solution is provided in Figure 3. As expected, the results generated by analytical and numerical methods are similar both in terms of pile settlement, and in terms of stresses below the bottom end of a pile.

DOI: 10.22227/1997-0935.2012.4.22 - 27

References
  1. Timoshenko S.P., Gud'er Dzh. Teoriya uprugosti [Theory of Elasticity]. Moscow, Nauka Publ., 1975, 575 p.
  2. Ter-Martirosyan Z.G., Nguen Zang Nam. Vzaimodeystvie svay bol'shoy dliny s neodnorodnym massivom gruntov [Interaction between Long Piles and Heterogeneous Soil Body]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2008, no. 2, pp. 3—14.
  3. Ter-Martirosyan Z.G. Mekhanika gruntov [Soil Mechanics]. Moscow, ASV Publ., 2009, 550 p.

Download

Interaction of anchors and the surrounding soil with accountfor elastic-plastic properties

Vestnik MGSU 7/2015
  • Ter-Martirosyan Zaven Grigor’evich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Science, Professor of the Department of Soil Mechanics and Geotechnics, Main Researcher at the Research and Education Center “Geotechnics”, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Avanesov Vadim Sergeevich - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Soil Mechanics and Geotechnics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (495) 287-49-14 (ext. 14-25); This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 47-56

In this paper the problem of interaction between grouted anchor and the surrounding soil body with account for its elastic-plastic properties is solved by analytical and numerical methods. Tensile loads are exerted on a grouted anchor placed in homogeneous soil body. Under ultimate loads occurs the failure of the system “anchor-surrounding soil”. This research is based on the elastic-plastic model designed by Timoshenko. The problem of interaction between grouted anchor and the surrounding soil is solved in various design conditions, such as constant structural shear strength, account for anchor stiffness, linear variable structural shear strength. The solutions of these problems can be used for quantitative estimation of the stress-strain state of the system. This estimation makes it possible to calculate the displacements of anchors and their bearing capacity. It is shown that displacements significantly depend on physico-mechanical properties of the surrounding soil, geometrical properties of the anchor, selection of design model. The analysis demonstrates that load-displacement curve has clear nonlinearity and unrestrictedly increases at approaching the ultimate stress. The account for anchor stiffness insignificantly influences the obtained solutions and account for it may be neglected. The obtained equations also show that the displacement of the anchor increases with widening of the diameter at constant dimensional ratio of the cylindrical model. It is demonstrated that the ultimate uplift capacity is dependent on the dimensions of anchors and physico-mechanical properties of soil. Analytical solutions are compared to the results of the Finite Element Analysis (FEA) in the computer program Plaxis. The comparison of analytical and numerical solutions has close precision for the magnitude of anchor displacement and ultimate loads.

DOI: 10.22227/1997-0935.2015.7.47-56

References
  1. Chim-oye W., Marumdee N. Estimation of Uplift Pile Capacity in the Sand Layers. International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies. 2013, vol. 4, no. 1, pp. 57—65.
  2. Yimsiri S., Soga K., Yoshizaki K., Dasari G.R., O’Rourke T.D. Lateral and Upward Soil-Pipeline Interactions in Sand for Deep Embedment Conditions. Journal of Geotechnical and Geoenvironmental Engineering. 2004, vol. 130, no. 8, pp. 830—842. DOI: http://dx.doi.org/10.1061/(ASCE)1090-0241(2004)130:8(830).
  3. Zhang B., Benmokrane B., Chennouf A., Mukhopadhyaya P., El-Safty P. Tensile Behavior of FRP Tendons for Prestressed Ground Anchors. Journal of Composites for Construction. 2001, vol. 5, no. 2, pp. 85—93. DOI: http://dx.doi.org/10.1061/(ASCE)1090-0268(2001)5:2(85).
  4. Hoyt R.M., Clemence S.P. Uplift Capacity of Helical Anchors in Soil. 12th International Conference on Soil Mechanics and Foundation Engineering. 1989, 12 p.
  5. Hanna A., Sabry M. Trends in Pullout Behavior of Batter Piles in Sand. Proceeding of the 82 Annual Meeting of the Transportation Research Board. 2003, 13 p.
  6. Thorne C.P., Wang C.X., Carter J.P. Uplift Capacity of Rapidly Loaded Strip Anchors in Uniform Strength Clay. Geotechnique. 2004, vol. 54, no. 8, pp. 507—517. DOI: http://dx.doi.org/10.1680/geot.2004.54.8.507
  7. Young J. Uplift Capacity and Displacement of Helical Anchors in Cohesive Soil. A Thesis submitted to Oregon State University, 2012. Available at: http://hdl.handle.net/1957/29487. Date of access: 11.05.2015.
  8. Briyo J.L., Pauers U.F., Uezerbay D.I. Dolzhny li in”ektsionnye gruntovye ankery imet’ nebol’shuyu dlinu zadelki tyagi? [Should Grouted Anchors Have Short Tendon Bond Length?]. Geotekhnika [Geotechnical Engineering]. 2012, no. 5, pp. 34—55. (In Russian)
  9. Briaud J.L., Griffin R., Yeung A., Soto A., Suroor A., Park H. Long-Term Behavior of Ground Anchors and Tieback Walls. Texas A&M Transportation Institute, 1998, 280 p.
  10. Vyalov S.S. Reologicheskie osnovy mekhaniki gruntov [Rheological Principles of Soil Mechanics]. Moscow, Vysshaya shkola Publ., 1978, 447 p. (In Russian)
  11. Sabatini P.J., Pass D.G., Bachus R.C. Ground Anchors and Anchored Systems. Geotechnical Engineering Circular no. 4. 1999, 281 p.
  12. Barley A.D., Windsor C.R. Recent Advances in Ground Anchor and Ground Reinforcement Technology with Reference to the Development of the Art. GeoEng. 2000, vol. 1, pp. 1048—1095.
  13. Copstead R.L., Studier D.D. An Earth Anchor System: Installation and Design Guide. United States Department of Agriculture. 1990, 35 p.
  14. Zheng J.J., Dai J.G. Prediction of the Nonlinear Pull-Out Response of FRP Ground Anchors Using an Analytical Transfer Matrix Method. Engineering Structures. 2014, vol. 81, pp. 377—985. DOI: http://dx.doi.org/10.1016/j.engstruct.2014.10.008.
  15. Azari B., Fatahi B., Khabbaz H. Assessment of the Elastic-Viscoplastic Behavior of Soft Soils Improved with Vertical Drains Capturing Reduced Shear Strength of a Disturbed Zone. International Journal of Geomechanics. 2014, vol. 40, 15 p. Available at: http://www.researchgate.net/publication/271273415_Assessment_of_the_Elastic-Viscoplastic_Behavior_of_Soft_Soils_Improved_with_Vertical_Drains_Capturing_Reduced_Shear_Strength_of_a_Disturbed_Zone. Date of access: 11.05.2015. DOI: http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000448 , B4014001.
  16. Timoshenko S.P., Goodier J.N. Theory of Elasticity. N.Y. : McGraw&Hill, 1970, 608 p.
  17. Ter-Martirosyan Z.G., Ter-Martirosyan A.Z. Reologicheskie svoystva gruntov pri sdvige [Rheological Properties of Soils while Shearing]. Osnovaniya, fundamenty i mekhanika gruntov [Bases, Foundations and Soil Mechanics]. 2012, no. 6, pp. 9—13. (In Russian)
  18. Ter-Martirosyan Z.G., Nguen Zang Nam. Vzaimodeystvie svay bol’shoy dliny s neodnorodnym massivom s uchetom nelineynykh i reologicheskikh svoystv gruntov [Interaction of Long Piles with a Heterogeneous Massif with Account for Non-linear and Rheological Properties of Soils]. Vestnik MGSU [Proceedings of Moscow Stte University of Civil Engineering]. 2008, no. 2, pp. 3—14. (In Russian)
  19. Ter-Martirosyan Z.G., Avanesov V.S. Vzaimodeystvie ankerov s okruzhayushchim gruntom s uchetom polzuchesti i strukturnoy prochnosti [Interaction between Anchors and Surrounding Soil with Account for Creep and Structural Shear Strength]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2014, no. 10, pp. 75—86. (In Russian)
  20. Ter-Martirosyan Z.G. Mekhanika gruntov [Soil Mechanics]. Moscow, ASV Publ, 2009, 550 p. (In Russian)
  21. Dinakar K.N., Prasad S.K. Behaviour of Tie Back Sheet Pile Wall for Deep Excavation Using Plaxis. International Journal of Research in Engineering and Technology. 2014, vol. 3, no. 6, pp. 97—103.

Download

Results 1 - 2 of 2