Determination of the affected area of vacuum consolidation method for roadbed ground improvement to adjacent works
- Organ:1 Department of Transport, Ho Chi Minh City, Viet Nam
2 Hanoi University of Mining and Geology, Hanoi, Viet Nam
3 Hanoi University of Mining and Geology, Hanoi, Viet Nam
- Keywords: Adjacent works,Affected area,Protect,Soft soil,Vacuum consolidation.
- Received: 5th-Oct-2020
- Accepted: 13th-Nov-2020
- Available online: 31st-Dec-2020
- Field: Civil Engineering
Vacuum Consolidation Method (VCM) is one of the effective ground improvement treatments applied in construction works in Viet Nam recently. However, its affected area impacts to the adjacent works has not been studied in detail and standarised, leading to unexpected incidents. This paper proposes a method to determine the affected area of vacuum consolidation method then propose solutions to protect works. The result was demonstrated at approach road of Vam Sat 2 bridge project, located in Can Gio district, Ho Chi Minh city and shows high efficiency, ensuring economic-technical factor.
. Indraratna, B., Rujikiatkamjorn, C., (2008). Effects of Partially Penetrating Prefabricated Vertical Drains and Loading Patterns on Vacuum Consolidation. Proceeding of ASCE GeoCongress: Geosustainability and Geohazard Mitigation, New Orleans, ASCE, Reston, VA, USA, 596-603.
. Liu, J., Fu, H., Wang, J., Cai, Y., Hu, X., (2018). Estimation of Influence Scope of Lateral Displacement of Soft Ground under Vacuum Pressure with PVD. Advances in Civil Engineering. Vol 2018, Article ID 8248049.
. Long. P. V., Bergado, D. T., Nguyen, L. V., Balasubramaniam, A. S., (2013). Design and Performance of Soft Ground Improvement using PVD with and without Vacuum Consolidation. Geotechnical Engineering Journal of the SEAGS & AGSSEA, Vol.44, No.4, 2013, ISSN 0046-5828.
. Nguyen M. D., Le, D. V., Pham, B. T., (2017). Prediction of Lateral Displacement of Ground Improved by Mernard Vacuum Consolidation Method based on Characteristics of Soft Soil and Settlement Observation Results. International Journal of Civil Engineering and Technology (IJCIET). Vol 8, Issue 11, 2017, 526-535.
. Nguyen Trong Nghia (2019) Modelling of a vacuum consolidation project in Viet Nam. Journal of Science Ho Chi Minh City Open University, 9(2):67-84.
. Ong, C., Chai, J., (2011) Lateral displacement of soft ground under vacuum pressure and surcharge load. Frontiers of Architecture and Civil Engineering in China, 5(2):239-248.
. Witasse, R., Racinais, J., Maucotel, F., Galavi, V., Brinkgreve, R., Plomteux, C., (2012). Finite Element Modeling of Vacuum Consolidation using Drain Elements and Unsaturated Soil Conditions. ISSMGE - TC 211. International Symposium on Ground Improvement IS-GI. 2012, Brussels, Belgium.