The behavior of the Perbaungan railway subgrade
Abstract
Railway subgrade is a layer consisting of soil material which can be in the form of natural soil, repaired material, and in the form of embankment of selected soil material that meets the specifications. The subgrade that meets the requirements is soil with a minimum CBR value of 8% with a minimum thickness of 30 cm. This study aims to analyze and evaluate the CBR value of the railway subgrade. Subgrade analysis was carried out on the improvement of the railway - replacement of concrete pads and rails R.25/33/42 to R.54 concrete pads from km 39 + 100 to km 40 + 200 along 1100 m in Perbaungan North Sumatra. The structure of the soil layer that is analyzed is the structure of the subsoil in the form of subgrade. The CBR value of the subgrade in the form of soil is determined based on the results of the analysis of the DCP data. The CBR value is evaluated based on the provisions that apply to the railway subgrade. The behavior of the railway subgrade can be seen from the CBR value of the original subgrade. Based on the results of the analysis, it was found that the behavior of the railway subgrade was quite diverse and it was found that only 39% met the requirements for the rail subgrade. Handling carried out in the field to improve the behavior of the subgrade is by using a backfill system made of good material with a density and CBR value that meets the requirements for railways.
References
S. H. T. Utomo, Jalan Rel. Yogyakarta: Beta Offset, 2009.
G. Rusbintardjo, Konstruksi Jalan Rel. Semarang: Unissula Press, 2012.
H. C. Hardiyatmo, Pemeliharaan Jalan Raya. Yogyakarta: Gadjah Mada University Press, 2015.
A. S. Balasubramaniam, H. Cai, D. Zhu, C. Surarak, and E. Y. N. Oh, “Settlements of Embankments in Soft Soils,†Geotech. Eng., vol. 41, no. 2, pp. 1–19, 2010.
A. Marto and B. A. Othman, “The Potential Use of Bamboo as Green Material for Soft Clay Reinforcement System,†in Proceedings of the International Conference on Environmental Science and Engineering, 2011, vol. 8, pp. 129–133.
M. N. Islam, C. T. Gnanendran, and S. T. Sivakumar, “Effectiveness of Preloading on the Time Dependent Settlement Behaviour of an Embankment,†GeoCongress @ ASCE, pp. 2253–2262, 2012, doi: 10.1061/9780784412121.231.
W. Al-Ani, D. Wanatowski, and S. H. Chan, “Numerical Analysis of Piled Embankments on Soft Soils,†in Ground Improvement and Geosynthetics, 2014, pp. 30–39.
C. Li, “A simplified method for prediction of embankment settlement in clays,†J. Rock Mech. Geotech. Eng., vol. 6, no. 1, pp. 61–66, 2014, doi: 10.1016/j.jrmge.2013.12.002.
R. D. Susanti, Maulana, and A. Waruwu, “Bearing Capacity Improvement of Peat Soil by Preloading,†ARPN J. Eng. Appl. Sci., vol. 12, no. 1, pp. 121–124, 2017.
J. J. Muhammed, P. W. Jayawickrama, A. Teferra, and M. A. Özer, “Settlement of a Railway Embankment on PVD-Improved Karakore soft Alluvial Soil,†Eng. Sci. Technol. an Int. J., vol. 23, no. 5, pp. 1015–1027, 2020, doi: 10.1016/j.jestch.2020.03.004.
A. Waruwu, H. C. Hardiyatmo, and A. Rifa’i, “Deflection Behavior of The Nailed Slab System-Supported Embankment on Peat Soil,†J. Appl. Eng. Sci., vol. 15, no. 4, pp. 556–563, 2017, doi: 10.5937/jaes15-15113.
A. Waruwu, H. C. Hardiyatmo, and A. Rifa’i, “Behavior of Nailed-Slab System on Peat Soil Under Loading,†in The 1st Warmadewa University International Conference on Architecture and Civil Engineering, 2017, pp. 91–97.
A. Waruwu, H. C. Hardiyatmo, and A. Rifa’i, “The Performance of The Nailed Slab System-Supported Embankment on Peat Soil,†Int. Rev. Civ. Eng., vol. 10, no. 5, pp. 243–248, 2019, doi: 10.15866/irece.v10i5.15757.
A. Waruwu, H. C. Hardiyatmo, and A. Rifa’i, “Uji Beban Timbunan yang Diperkuat dengan Sistem Pelat Terpaku pada Tanah Gambut,†Media Komun. Tek. Sipil, vol. 25, no. 2, pp. 152–159, 2019, doi: 10.14710/mkts.v25i2.21018.
A. Waruwu, “Bamboo Reinforcement in Shallow Foundation on the Peat Soil,†J. Civ. Eng. Res., vol. 2014, no. 3A, pp. 96–102, 2014, doi: 10.5923/c.jce.201402.16.
A. Waruwu and R. D. Susanti, “Behavior of Soil Peat with Reinforcement of Bamboo Grid,†IOSR J. Eng. www.iosrjen.org ISSN, vol. 5, no. 11, pp. 29–36, 2015, [Online]. Available: www.iosrjen.org.
Maulana, Azwar, R. D. Susanti, and A. Waruwu, “Potential of Bamboo Pile as Reinforcement of Peat Soil under Embankment,†ARPN J. Eng. Appl. Sci., vol. 13, no. 1, pp. 52–56, 2018.
A. Waruwu, H. Halim, T. Nasution, and Y. Hanova, “Bamboo Grid Reinforcement on Peat Soil under Repeated Loading,†J. Eng. Appl. Sci., vol. 13, no. 8, pp. 2190–2196, 2018, doi: 10.3923/jeasci.2018.2190.2196.
M. Maulana, Y. Hanova, A. Waruwu, and E. R. Putra, “Simplified Method for Prediction of Settlement in Bamboo Piles-Reinforced Peat under Embankment,†J. Appl. Eng. Sci., vol. 17, no. 1, pp. 35–42, 2019, doi: 10.5937/jaes17-18793.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Abstract viewed = 196 times
PDF downloaded = 173 times
