Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30135
Construction Technology of Modified Vacuum Pre-Loading Method for Slurry Dredged Soil

Authors: Ali H. Mahfouz, Gao Ming-Jun, Mohamad Sharif

Abstract:

Slurry dredged soil at coastal area has a high water content, poor permeability, and low surface intensity. Hence, it is infeasible to use vacuum preloading method to treat this type of soil foundation. For the special case of super soft ground, a floating bridge is first constructed on muddy soil and used as a service road and platform for implementing the modified vacuum preloading method. The modified technique of vacuum preloading and its construction process for the super soft soil foundation improvement is then studied. Application of modified vacuum preloading method shows that the technology and its construction process are highly suitable for improving the super soft soil foundation in coastal areas.

Keywords: Super soft foundation, dredger fill, vacuum preloading, foundation treatment, construction technology.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1339233

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1251

References:

jellman, w. 1952. Consolidation of clayey soils by atmospheric pressure. Proceedings of a conference on soil stabilization, Massachusetts institute of technology, Boston: 258-263.
[2] Liu H. L, Mahfouz, A. H., and Chen Yong-hui., 2004. Ground Treatment of sea embankment by vacuum preloading with PVDs. Southeast University Journal, SEUJ, Nanjing, China, 20(1): 96-101. (EI)
[3] Mahfouz, A.H., Liu Han-long, Gao Yu-feng, and Li Hao, 2004. Soil improvement for Hangzhou express highway – China by Using Vacuum Preloading Method and PVD Application. J. of Petroleum and Mining Engineering, JPME, Suez, Egypt, June 7(1): 115-125.
[4] Mahfouz, A.H. 2005. Study of combined vacuum-surcharge preloading mechanism for ground treatment. PhD Thesis, Hohai University, Nanjing, China.
[5] Mahfouz, A.H., Liu Han-long and Yu Xiang Juan. 2005. Soil improvement for Jing-Zhu expressway in Guangdong province–China by using vacuum preloading method. Proc. of 3rd Int. Conf. on Geotech. Eng. combined with 9th Yearly Meeting of the Indonesian Society for Geotech. Eng. (ISGE) for Disaster Prevention and Rehabilitation. Aug. 3-4, 2005, Semarang, Indonesia, 303-313.
[6] Mahfouz, A. H., Liu Hanlong, Mohammed A Sakr and Samir IShalaby. 2007. New technique of ground improvement by using vacuum preloading method with PVDs. 12th International Colloquium on Structural and Geotechnical Engineering (ICSGE) 10-12 Dec. 2007, Cairo - Egypt.
[7] Mahfouz, A.H., Shen Yang, New. 2014. Technology of Vacuum Preloading for Super Soft Soil Foundation. MPM 12 International conference, 20-22 October 2014, Geo 1.
[8] CAO Yong Lang, Cong Jian, Wu Xiaopeng. 2003 Expressway super soft vacuum preloading of (J). Rock and Soil Mechanics, 24 (5):771-775.
[9] Zhao Weibing, Qian Huan. 1990. Preloading Sand foundation design. Journal of Waterway engineering, (9):5-10.
[10] Mahfouz, A.H Liu Han-long and Gao Yu-feng, 2002. Behaviour of soft soils under consolidation with applied surcharge and vacuum preloading. Proc. of Symp. on Soil/Ground Improvement and Geosynthetic Application, 12-13 Dec. 2002, SEAGS, Bangkok, Thailand, 2545, 199-211.
[11] Mahfouz, A. H, Liu Hanlong, and Gaoyufeng, 2004. Ground Improvement by Using Vacuum Preloading with Sand Drains. IS-OSAKA 2004 International Symposium on Engineering Practice and Performance of Soft Deposits 2-4 June, Osaka, Japan, 287-292.
[12] Ground Handling Manual prepared by the Committee. Ground Handling Manual (Second Edition) (M). Beijing: China Building Industry Press, 2000.
[13] Li Hao,Gao Yu-feng,Liu Han-long,Peng Jie, and Mahfouz, A.H. 2003. Simplified method for subsoil improved by vacuum combined with surcharge preloading, Chinese Geotechnical Engineering Journal, Nanjing, China, 25(1): 58-62, (in Chinese). (EI).
[14] Cai Xiaoguang, Liu Han. 2009. Composites reinforced embankment on soft soil drainage water cushion design method (J). Disaster Prevention and Mitigation Engineering, (3): 356-360.
[15] Y. Shen, M. Tao, H. L. Liu, Y. F. Gao, Y. Cui. 2012. The performance of super soft foundation under modified vacuum preloading method. Forensic Engineering, American Society of Civil Engineers (ASCE) 2012 pp. 708-715.