簡易檢索 / 詳目顯示

回結果列表
研究生： 龍明明
Mhlongo, Bongane Dumsane
論文名稱： 以震動台試驗探討加勁邊坡動態行為- 邊坡坡度效應
Shaking Table Tests on Geosynthetic Reinforced Slopes -Effects of Slope Angles
指導教授： 黃景川
Huang, Ching-Chuan
學位類別： 碩士
Master
系所名稱： 工學院 - 土木工程學系
Department of Civil Engineering
論文出版年： 2019
畢業學年度： 107
語文別： 英文
論文頁數： 164
外文關鍵詞： Shaking Table Tests, Geosynthetic-Reinforced Slope, Steep Slope, Permanent Displacement, Dynamic Response, Bulging Index, Fundamental Frequency, Internal Failure Index
相關次數： 點閱：132  下載：5 
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報

    • A total of six tests were carried out to investigate the effect of slope angles on the seismic behavior of geosynthetic-reinforced soil slopes. It was found that acceleration amplification depends mainly on the input predominant frequency of the earthquake and the variation of slope angles has relatively less significant effect. Acceleration amplification was found to change with elevation which is contrary to the uniform distribution of Am conventionally assumed in current reference design guides (i.e. Elias et al., 2001; NCMA., 2010).
    Slope displacements has proven to be largely controlled by the slope angle. Slope displacement increased with increase in slope steepness, irrespective of the input wave frequency used. The magnitude of critical acceleration (ay) detoriates with increase in slope steepness, suggesting that steeper slopes are most likely to fail at relatively small HPGA or ay values. Internal failure index has proven to be an important parameter to distinguish between overturning and bulging modes of failure.

    TABLE OF CONTENTS ABSTRACT I ACKNOWLEDGEMENT II TABLE OF CONTENT III LIST OF FIGURES VII LIST OF TABLES XIII CHAPTER ONE - INTRODUCTION 1 1.1.Research Background. 1 1.2 Problem Statement. 2 1.3 Objective of Study. 3 1.4 Research Approach. 3 1.5 Scope of Thesis. 4 CHAPTER TWO - LITERATURE REVIEW 6 2.1.Introduction. 6 2.2.Newmark (1965) Sliding Block Model. 8 2.3.Cai and Bathurst (1996) Seismic Induced Permanent Displacement of Geosynthetic-Reinforced Segmental Walls. 10 2.4.Huang et al. (2010) and Huang et al. (2011) Dynamic Behavior of Reinforced Slopes. 12 2.5.Free Vibration, Chopra (2001). 15 2.6.Liao (2018) Wide-Width Test of the Reinforcement Material. 17 2.7.Xu Huoyi (2016) Direct Shear Behavior and Patterning of Soil. 23 2.8.Experimental Design, Instrumentation And Interpretation of Reinforced Soil Wall Response Using Shaking Table (El-Emam and Bathurst, 2004) 24 2.9. Mononobe-Okabe (1926-1929). 27 CHAPTER THREE - EXPERIMENTAL DESIGN AND METHODOLOGY 30 3.1.Background. 30 3.2.Soil Properties. 31 3.3.Reinforcement Material. 31 3.4.Model Container. 32 3.5.Facing. 32 3.6.Instrumentation and Data Acquisition. 33 3.6.1.Accelerometers (Acc). 33 3.6.2.Strain Gauge. 34 3.6.3.Linear Variable Displacement Transducers (LVDTs). 34 3.6.4.National Instrument LabVIEW. 35 3.6.5.Data Acquisition. 35 3.7.MTS Shaking Table. 36 3.8.Testing Methodology. 37 3.9.Input Wave Form Simulation Results. 38 3.10.Scaling Laws. 39 3.11.Sand Specimen Preparation. 40 CHAPTER FOUR - EXPERIEMNTAL RESULTS AND DISCUSSION 57 4.1.Performance of Laminar and Rigid Sand Boxes. 57 4.2.Decay of Free Vibration and White Noise Test. 62 4.3.Acceleration Response. 69 4.4.Wall Deformation Analysis. 91 4.4.1.Maximum Permanent Displacement (Dmax) and Horizontal Peak Ground Acceleration (HPGA). 91 4.4.2.Normalized Slope Displacement (Dn) Vs. Normalized Yield Acceleration (Ay/HPGA). 98 4.5.Deformation Modes. 101 4.5.1.Factor of Safety Analysis. 101 4.5.2.Wall Deformation Process. 109 4.5.3.Internal Failure Index (IFJ). 115 4.6.Distribution of Reinforcement Forces. 118 4.7.Static and Dynamic Earth Pressure Distribution. 126 4.7.1.Active Earth Pressure Coefficient, Ka. 126 4.7.2.Incremental Dynamic Earth Pressure Coefficient, ∆Kdyn. 127 4.7.3.Dynamic Earth Pressure. 132 CHAPTER FIVE - CONCLUSIONS AND SUGGESTIONS 137 5.1.Conclusions. 137 5.2.Recommendations for Future Work. 140 REFERENCES 142 Appendix A 146 Appendix B 147  

    REFERENCES
    ASTM D4595 Test Methods for tensile properties of geotextiles by wide-width strip method. ASTM International, West Conshohocken, PA, USA.

    Bathurst, R.J., El-Emam, M., and Mashhour, M.M. (2002a). Shaking Table Model Study on the Dynamic Response of Reinforced Soil Walls. In: Proceedings of the 7th International Goesynthetics Conference, Nice, France, pp. 22-27.

    Bathurst, R.J., Hatami, K., and Alfaro, M.C. (2002b). Geosynthetic reinforced soil walls and slopes: Seismic aspects. In: Shukla, S.K. (Ed), Geosynthetics and their applications.

    El-Emam, M., and Bathurst, R.J. (2004). Experimental design, instrumentation and interpretation of reinforced soil wall response using shaking table. International journal of Physical Modeling in Geosynthetics, No.4, pp. 13-32.

    El-Emam, M., and Bathurst, R.J. (2007). Influence of reinforcement parameters on the seismic response of reduced-scale reinforced soil retaining walls. Geotextile and Geomembranes, Vol.25, No.1, pp. 33-49.

    Gazetas, G. (1987). Seismic response of earth dams: some recent develops. Soil Dynamic Earthquake Eng., Vol.6, No.1, pp. 2-47.

    Huang, C.C., and Chen, Y.H. (2004). Seismic stability of soil retaining walls situated in slope. Journal of Geotechnical and Geoenvironmental Engineering ASCE, Vol. 130, No.1, pp. 45-57.

    Huang, C.C., Horng, J.C., and Chang, J.J. (2008b). Seismic stability of reinforced slopes: failure mechanisms and displacements. Geosynthetic International, Vol.15, No.5, pp. 333-349.

    Huang, C.C., and Wu H.J. (2009). Seismic displacement analysis of a reinforced soil model wall considering progressive development of reinforcement force.

    Huang, C.C., Horng, J.C., Chang, W.J., Chueh, S.Y., Chiou, J.S., and Chen, C.H. (2010). Dynamic behavior of reinforced slopes: horizontal acceleration response. Geosynthetics International, Vol.17, No. 4, pp. 207-219.

    Huang, C.C., Horng, J.C., Chang, W.J., Chiou, J.S., and Chen, C.H. (2011). Dynamic behavior of reinforced walls-horizontal displacement response. Geotextiles and Geomembranes, Vol.29, No.3, pp. 33-49.

    Huang, C.C., Huang B.S., and Chen, Y.W. (2016). Stability analysis for geosyntetic-reinforced steep-faced slopes subjected to toe scouring. Journal of GeoEngineering, Vol.11, No.3, pp. 123-132.

    Krishna, A.M., and Latha, G.M. (2007). Seismic response of wrap-faced reinforced soil retaining wall models using shaking table tests. Geosynthetics International Vol.14, No.6, pp. 355-364.

    Kuwano, J., Ishihara, K., Haya, H., and Izu, F. (1991). Analysis of permanent deformation of embarkements caused by earthquakes. Soil and foundations, Vol.31, No.1, pp. 97-110.

    Ling, H.I., Mohri, Y., Leshchinsky, D., Burke, C., Matsushima, K., and Liu, H-B. (2005). “Large scale shaking table tests on modular-block reinforced soil retaining walls” Journal of Geotechnical and Geoenvironmental Engineering, Vol.131, No.4, pp. 465-475.

    Ling, H.I., Mohri, Y., Leshchinsky, D., and Chou. N.N. (2001). Post-earthquake investigation on several geosynthetic-reinforced soil retaining walls and slopes during the Chi-Chi earthquake Taiwan. Soil Dynamics and Earthquake Engineering, Vol. 219, No.4, pp. 297-313.

    Lo Grasso, A.S., Maugeri, M., Montanilli F., and Recalcati P. (2004). Response of geosynthetic reinforced soil wall under seismic condition by shaking table tests. Proceeding of 3rd European geosynthetic conference, Munich, Germany, Vol 2, pp. 723-728.
    Lo Grasso A.S, Maugeri M., and Recalcati P (2005). Seismic behavior of geosynthetic reinforced slopes with overload by shaking table tests.

    Mkdisi, F.I., and Seed, H.B. (1978). Simplified procedure for estimating earth dam and embarkement earthquake induced deformations. J. Geotech. Eng. Div., ASCE, Vol.104(GT7), pp. 849-867.

    Mononobe, N., and Matsuo (1929)” Determination of earth pressures during earthquakes” Proceeding of the World Engineering congress, Tokyo.

    Nadim, F., and Whitman, R.V. (1983). Seismically induced movements of retaining walls. J. Geotech.Eng. ASCE, Vol.109, No.7, pp. 702-719.

    Newmark, N.M (1965).” Effect of Earthquake on and Embarkements” Geotechnique, Vol. 15, No.2, pp. 139-159.

    Nova-Roessig, L., and Sitar, N. (2006). Centrifuge model studies of seismic response of reinforced soil slopes. Journal of Geotechnical and Geoenvironmental Engineering, Vol.132, No.3, pp. 380-400.

    Paskalov, T.A. (1984). Permanent displacement estimation on embarkements dams due to earthquake excitations. Proc. 8th WCEE, Earthquake Engng. Inst.

    Paulsen, S. B., and Kramer. S.L. (2004). A predictive model for seismic displacement of reinforced slopes. Geosynthetic International, Vol.11, No.6, pp. 407-428.

    Perez, A. (1999). Seismic Response of Geosynthetic Reinforced Steep Slopes. Master of Science Thesis, University of Washington.

    Sabermahani, M., Ghalandarzadeh, A., and Fakher, A. (2009). Experimental study on seismic deformation modes of reinforced-soil walls. Geotextiles and Geomembranes, Vol.27, No.2, pp. 121-136.

    Sarma. S.K. (1988). Seismic response and stability of earth dams. In seismic risk, ed. A Koridze, Oxford: Omega Scientific.

    Srilatha. N., Madhavi. Latha.G., and Puttappa. C.G. (2014). Shaking table studies on geotextile reinforced soil slopes. Geo-Innovation, Vol.4, No.2, pp 1-9.
    Spencer, E. (1978). Earth slopes subjected to lateral acceleration. J. Geotech. Eng. Div. ASCE, vol.104(GT12), pp. 1489-1500.

    Viswanadham, B.V.S., and Koning, D. (2009). Centrifuge modeling of geotextile-reinforced slopes subjected to differential settlements. Geotextile and Geomembranes, Vol.27, No.2, pp. 77-88.

    Wang J, Yao L., and Hussian, A. (2010). Analysis of earthquake triggered failure mechanisms of slopes and sliding surfaces. J Mt Sci. Vol.7, No.3, pp. 282-728.

    Yang, K.H., Hung, W.Y., and Kencana, E.Y. (2013). Acceleration-Amplified Response of Geosynthetic-Reinforced Soil Structure with a Wide Range of Input Groung Accelerations. Geo-Congress.

    下載圖示 校內：立即公開
    校外：立即公開
    QR CODE