Istrazivanja i projektovanja za privreduJournal of Applied Engineering Science

SOFT GROUND IMPROVEMENT BELOW BRIDGE APPROACH FOUNDATION USing CEMENT DEEP MIXing COLUMNS COMBINED WITH GEOTEXTILE


DOI: 10.5937/jaes0-40629 
This is an open access article distributed under the CC BY 4.0
Creative Commons License

Volume 21 article 1093 pages: 491-500

Thang Ngoc Nguyen
Faculty of Engineering Technology, Tien Giang University, Tien Giang province, Vietnam

Tuan Anh Nguyen*
Institute of Civil Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh city, Vietnam

Vehicle load is a dynamic load and embankment load is a static load. These two load types can act simultaneously to accelerate the consolidation rate of the ground under the embankment, which then leads to differential settlement. This differential settlement is dangerous as it can cause sudden bouncing and shock for vehicles on the road. There are also other problems such as the reduction in the exploitation capacity of the construction work due to the reduction in the speed of vehicles going through the positions of settlement. Lower speed increases the waste of means of transport. Excessive settlement can occur from reasons such as improper design or improper construction. This paper uses the finite element method to simulate the construction process of the bridge approach to calculate, and check the stability and deformation of the soft ground under this road. The analysis results show that the settlement of the ground without treatment is quite large at 1.06 m. After reinforcement, the settlement is 0.013 m, and the stability coefficient increases from 1.032 to 2.739. The research results can be applied to reinforce the bridge approach with a system of cement deep mixing (CDM) columns combined with geotextiles to shorten the construction time and limit settlement compensation.

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1.  Vietnamese Standard TCVN 9436:2012 (2012). Highway embankments and cuttings - Construction and quality control, Ministry of Transport, Vietnam.

2.     Bengt, B. H. (1999). Keynote Lecture: Design of lime, lime/cement and cement columns. International Conference on Dry Mix Methods: Dry Mix Methods for Deep Soil Stabilization, Rotterdam Balkema, p. 125-153.

3.   Coastal Development Institute of Technology-CDIT (2002). The Deep Mixing Method: Principle, Design and Construction. A.A. Balkema, The Netherlands.

4. Bruce, D. A. (2000). An Introduction to the Deep Soil Mixing Methods as used in Geotechnical Applications, FDWA-RD-99-138. Federal Highway Administration, McClean, VA.

5.  Nguyen, A. T. and Nguyen, N. T. (2020). Study on Stress Distribution in Soft Ground Consolidated with Deep Cement Mixing Columns under Road Embankment. Civil Engineering and Architecture, Vol. 8, No. 6, 1251-1256, DOI: 10.13189/cea.2020.080609.

6.  Nguyen, N. T. and Nguyen, A. T. (2018). Nonlinear FEM analysis of cement column configuration in the foundation improved by deep mixing method. Strength of Materials and Theory of Structures, No. 100, 18-26.

7. Kurbatskiy, E. N., Telyatnikova, N. A., Nguyen, N. T. and Nguyen, A. T. (2018). Study on Using Laboratory Model to Research for Bearing Capacity of Soft Ground Improved by Deep Cement Mixing Columns due to Embankment Load with Different Montmorillonite Contents. 2018 IEEE International Conference "Quality Management, Transport and Information Security, Information Technologies" (IT&QM&IS), p. 121-127, DOI: 10.1109/ITMQIS.2018.8525125.

8.   Nguyen, A. T. and Nguyen, N. T. (2020). Study on Stress Distribution in Soft Ground Consolidated with Deep Cement Mixing Columns under Road Embankment. Civil Engineering and Architecture, Vol. 8, No. 6, 1251-1265, DOI: 10.13189/cea.2020.080609.

9.   Yemi, K. A, KaileAbdulmalik, A., and Akeem, O. A. (2020). Soil-cement stabilization using papalanto to Sagamu road in Ogun State, Nigeria as Case Study. The International Journal of Engineering and Science (IJES), Vol. 9, Iss. 6, 27-35.

10.   Nguyen, H. S., Yuji, A., Takum, K., Hiroyuki, M. and Shinya, I. (2020). Integration of information and communication technology (ICT) into cement deep mixing method. International Journal of GEOMATE, Vol.19, Iss. 74, 194–200, DOI: 10.21660/2020.74.9329.

11.   Nguyen, A. T. and Nguyen, T. D. (2020). 2D Finite Element Analysis for the Application of Deep Soil Mixing Column for Reinforcement of Soft Ground Surrounding Deep Excavation. Conference Proceedings of 2020 IEEE 3rd International Conference on Information and Computer Technologies (ICICT), p. 376-379, DOI: 10.1109/ICICT50521.2020.00066

12.   Dario, P., Claudio, G. and Arjan, A. M. V. (2020). Differential settlements affecting transition zones between bridges and road embankments on soft soils: Numerical analysis of maintenance scenarios by multi-source monitoring data assimilation. Transportation Geotechnics, Vol. 24, 100369, DOI: 10.1016/j.trgeo.2020.100369.

13.   Yasrobi, S. Y., Kam, W. Ng., Thomas, V. E. and Michael, M. (2016). Investigation of approach slab settlement for highway infrastructure. Transportation Geotechnics, Vol. 6, 1-15, DOI: 10.1016/j.trgeo.2015.12.002.

14.   Nguyen, N. T. and Nguyen, A. T. (2022). A study on the calculation of deformation of cement deep mixing columns that stabilize soil erosion and landslides on river roads. International Journal of GEOMATE, Vol. 23, Iss. 100, 52-61, DOI: 10.21660/2022.100.3679

15. Toshihide, S. and Yuki, O. (2021). Influence of applying overburden stress during curing on the unconfined compressive strength of cement-stabilized clay. Soils and Foundations, Vol. 61, Iss. 4, 1123-1131. DOI: 10.1016/j.sandf.2021.03.007.

16.   Thanakorn, C., Thanakit, T., Anupong, K. and Suched, L. (2022). Improving mechanical properties and shrinkage cracking characteristics of soft clay in deep soil mixing. Construction and Building Materials, Vol. 316, 125858, DOI: 10.1016/j.conbuildmat.2021.125858.

17.   Yihan, S., Yazhou, X., Clifford, J. R. and Jian, Z. (2022). Seismic fragility of approach backfill differential settlement for statewide bridges in California. Soil Dynamics and Earthquake Engineering, Vol. 153, 107049, DOI: 10.1016/j.soildyn.2021.107049.

18.   Anand, J. P., Pinit, R. and Surya, S. C. C. (2019). Design and construction of lightweight EPS geofoam embedded geomaterial embankment system for control of settlements. Geotextiles and Geomembranes, Vol. 47, Iss. 3, 295-305, DOI: 10.1016/j.geotexmem.2019.01.015.

19. Chengzhi, X., Shan, G., Huabei, L. and Yanqing, D. (2021). Case history on failure of geosynthetics-reinforced soil bridge approach retaining walls. Geotextiles and Geomembranes, Vol. 49, Iss. 6, 1585-1599, DOI: 10.1016/j.geotexmem.2021.08.001.

20.   Engineering Geological Report (2020), Project at Tan Phu Dong district - Tien Giang province. Thanh Phu TG one-member limited company.

21. Vietnamese Standard 22TCN262-2000 (2000). The specification of surveying and designing the motorway sub-grade on soft ground, Ministry of Transport, Vietnam.