پیوندهای مفید
آمار
| تعداد نشریات | 21 |
| تعداد شماره‌ها | 646 |
| تعداد مقالات | 9,458 |
| تعداد مشاهده مقاله | 68,235,747 |
| تعداد دریافت فایل اصل مقاله | 47,769,400 |
Determining the Dynamic Settlement of the Foundation Adjacent to Slope Using Analytical Method | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 3، دوره 11، شماره 2 - شماره پیاپی 30، مرداد 2023، صفحه 33-42 اصل مقاله (1.31 M) | ||
| نوع مقاله: Technical Report | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2022.22290.1471 | ||
| نویسندگان | ||
| Mohammad Javad Shabani* 1؛ Ali Ghanbari2 | ||
| 1Technical College of Imam Sadiq, Technical and Vocational University, Babol, Iran | ||
| 2Department of Civil Engineering, Kharazmi University, Tehran, Iran | ||
| تاریخ دریافت: 13 دی 1399، تاریخ بازنگری: 12 تیر 1400، تاریخ پذیرش: 05 تیر 1401 | ||
| چکیده | ||
| Based on field studies, the topographic slope effects worsen the structural damage in an earthquake. It is very vital to determine the amount of foundation settlement adjacent to the slope. In this study, a new analytical model is proposed to determine the amount of vertical settlement of the shallow foundation near the slope. In this analytical model, the inertia force due to the sliding zone mass is considered in the dynamic equilibrium equations. Moreover, it was assumed that stiffness and damping under the foundation linearly increased as the distance from the slope edge increased. In this case, the maximum stiffness and damping at a distance five times as large as the foundation width from the slope edge were considered to be the same as maximum stiffness and damping in the non-slope scenario. The foundation was loaded harmonically by changing the frequency. Comparing the results of this study with the laboratory results leads to this observation that the offered analytical model can well determine the settlement located near the slope. Furthermore, the results showed that the settlement of the foundation near the slope edge was twice as large as the settlement in the absence of a slope. Also, the settlement of the foundation became equal to that of the non-slope foundation at a distance of 4 times as large as the foundation width from the slope edge. Furthermore, with increasing slope angle and declining the foundation distance from the slope edge, due to vertical harmonic load, the foundation settlement amount increases. | ||
| کلیدواژه‌ها | ||
| Slope topography effect؛ Analytical method؛ Soil stiffness؛ Strip footing؛ Dynamic loading | ||
| مراجع | ||
|
[1] Farokhzad, F., Shabani, M., Hasanpour, A. (2020). Investigating stabilized excavations using soil nailing method in urban context, Journal of Rehabilitation in Civil Engineering, 8(2): 126-138. doi: https://doi.org/10.22075/jrce.2019.10841.1175
[2] Mirnaghizadeh, M., Hajiazizi, M., Nasiri, M. (2020). Stabilization of earth slope by waste tire using experimental tests and PIV, Journal of Rehabilitation in Civil Engineering, 8(3): 139-157. doi: https://doi.org/10.22075/jrce.2020.19096.1359
[3] Shabani, M. J., Ghanbari, A. (2020). Design curves for estimation of amplification factor in the slope topography considering nonlinear behavior of soil, Indian Geotechnical Journal, 50(6): 907–924. doi: https://doi.org/10.1007/s40098-020 00443-1
[4] Shabani, M. J., Ghanbari, A. (2020). Comparison of seismic behavior of steel building adjacent to slope topography by considering fixed-base, SSI and TSSI, Asian Journal of Civil Engineering, 21: 1151-1169. doi: https://doi.org/10.1007/s42107-020-00266-8
[5] Ghosh, P., Kumar, J. (2005). Seismic bearing capacity of strip footings adjacent to slopes using the upper bound limit analysis, Electronic Journal of Geotechnical Engineering, 10, Bundle C.
[6] Aminpour, M. M., Maleki, M., Ghanbari, A. (2017). Investigation of the effect of surcharge on behavior of soil slopes, Geomechanics and Engineering, 13(4): 653-669. doi: http://dx.doi.org/10.12989/gae.2017.13.4.653
[7] Choudhury, D., Subba Rao, K. S. (2006). Seismic bearing capacity of shallow strip footings embedded in slope, International Journal of Geomechanics, 6(3): 176-184. doi: https://doi.org/10.1061/(ASCE)1532-3641(2006)6:3(176)
[8] Arabshahi, M., Majidi, A. R., Mirghasemi, A. A. (2010). Seismic three-dimensional bearing capacity of shallow foundations adjacent to slopes, Proceedings of the 4th International Conference on Geotechnical Engineering and Soil Mechanics, Tehran, Iran, November.
[9] Alamshahi, S., Hataf, N. (2009). Bearing capacity of strip footings on sand slopes reinforced with geogrid and grid-anchor, Geotextiles and Geomembranes, 27(3): 217-226. doi: https://doi.org/10.1016/j.geotexmem.2008.11.011
[10] El Sawwaf, M. A., Nazir, A. K. (2012). Cyclic settlement behavior of strip footings resting on reinforced layered sand slope, Journal of Advanced research, 3(4): 315-324. doi: https://doi.org/10.1016/j.jare.2011.10.002
[11] Islam, M. A., Gnanendran, C. T. (2013). Slope stability under cyclic foundation loading – Effect of loading frequency, Proceedings of the GeoCongress, ASCE, California, USA, 750-761.
[12] Dey, A., Acharyya, R., Alammyan, A. (2019). Bearing capacity and failure mechanism of shallow footings on unreinforced slopes: a state-of-the-art review, International Journal of Geotechnical Engineering, 1-14. doi: https://doi.org/10.1080/19386362.2019.1617480.
[13] Lysmer, J., and Richart, F. E. (1966). Dynamic response of footings to vertical loading, Journal of Soil Mechanics and Foundations Div., ASCE, 92(1): 65-91. doi: https://doi.org/10.1061/JSFEAQ.0000846
[14] Varzaghani, M. I., Ghanbari, A. (2014). A new analytical model to determine dynamic displacement of foundations adjacent to slope, Geomechanics and Engineering, 6(6): 561-575. doi: http://dx.doi.org/10.12989/gae.2014.6.6.561
[15] Mylonakis, G., Nikolaou, S., Gazetas, G. (2006). Footings under seismic loading: Analysis and design issues with emphasis on bridge foundations, Soil Dynamics and Earthquake Engineering, 26(9): 824-853. doi: https://doi.org/10.1016/j.soildyn.2005.12.005
[16] Shabani, M. J., Shamsi, M., Ghanbari, A. (2021). Slope topography effect on the seismic response of mid-rise buildings considering topography-soil-structure interaction, Earthquakes and Structures, 20(2): 187-200. doi: https://doi.org/10.12989/eas.2021.20.2.187 [17] Shabani, M. J., Shamsi, M., Ghanbari, A. (2021). Dynamic response of three-dimensional mid-rise buildings adjacent to slope under seismic excitation in the direction perpendicular to the slope, International Journal of Geomechanics, doi: https://doi.org/10.1061/(ASCE)GM.1943-5622.0002158
[18] Lazarte, C. A., Robinson, H., Gomez, J. E., Baxter, A., Cadden, A., Berg, R. R., et al. (2015). Geotechnical engineering circular No. 7 soil nail walls-reference manual (No. FHWA-NHI-14-007). National Highway Institute (US). | ||
|
آمار تعداد مشاهده مقاله: 754 تعداد دریافت فایل اصل مقاله: 318 |
||