Applying the Equivalent Plane Strain solution to design the soft soil improvement by vertical drains
- Tác giả: Nu Thi Nguyen
Cơ quan:
Faculty of Geosciences and Geoengineering, Hanoi University of Mining and Geology, Vietnam
- *Tác giả liên hệ:This email address is being protected from spambots. You need JavaScript enabled to view it.
- Từ khóa: Consolidation, Sand drains, Soft soil
- Nhận bài: 01-02-2020
- Sửa xong: 23-05-2020
- Chấp nhận: 30-06-2020
- Ngày đăng: 28-06-2020
- Lĩnh vực: Địa chất - Khoáng sản
Tóm tắt:
The soft soil improvement by vertical drains (PVD, sand drains) are widely used in Vietnam. One of the methods is used for designing soft soil improvement by vertical drains is the Equivalent Plane Strain solution. To use this solution, the permeability coefficient of soil is converted into the equivalent permeability under plane strain. The paper presents the application of this solution to design soft soil improvement by sand drains at Km 3+130 Vi Thanh - Can Tho. It indicated that the settlement results of the soft ground treatment design based on Equivalent Plane Strain solution are similar to those from the Axisymmetric Condition analysis and field monitoring.
22TCN 262-2000, (2000). Survey and design procedures of highway constructed on soft soil ground.
Barron, R. A., (1948). Consolidation of fine -grained soils by drain wells, Proc. ASCE 2346.718-742.
Brinkgreve, R. B. J., (2002). Plaxis 2D-Version 8 Manual, Balkema.
Hansbo, S., (1981). Consolidation of fine-grained soils by prefabricated drains. Proc. 10th Int. Conf. Soil Mech., Stockholm, Vol. 3, Paper 12/22. pp. 677-682.
Hird, C. C., Pyrah, I. C., Russell, D, (1992). Finite element modeling of vertical drains beneath embankments on soft ground. Geotechnique 42 (3), 499-511.
Hoang Van Tan, Tran Ngo, Phan Dinh Truong, Pham Xuan, Nguyen Hai, (1977). Construction methods on soft ground. Construction Publishers. Hanoi. (In Vietnamese).
Indraratna, B., (2008). Recent advancements in the use of prefabricated vertical drains in soft soils. Australian Geomechanics Journal, March issue, 29-46.
Indraratna, B., and Redana, I. W., (1997). Plane strain modeling of smear effects associated with vertical drains. J. Geotech. Eng., ASCE. 123(5), 474 - 478.
Indraratna, B., Rujikiatkamjorn C., and Sathananthan, I. (2005a). Analytical and numerical solutions for a single vertical drain including the effects of vacuum preloading. Canadian Geotechnical Journal 42. 994-1014.
Indraratna, B., Rujikiatkamjorn C., and Sathananthan, I., (2005c). Radial consolidation of clay using compressibility indices and varying horizontal permeability. Canadian Geotechnical Journal 42, 1330-1341.
Indraratna, B., Sathananthan, I., Rujikiatkamjorn C. and Balasubramaniam, A. S. (2005b). Analytical and numerical modeling of soft soil stabilized by PVD incorporating vacuum preloading. International Journal of Geomechanics 5 (2). 114-124.
Nguyen Thi Nu and Phi Hong Thinh, (2020). Soft soils in the Me Kong Delta of Vietnam. ActuAlscience 4(1), 24-31.
Nguyen Thi Nu, (2014). Researching of engineering geological properties of soft clayey soil amQ22-3 distribution in the coastal provinces of Mekong delta for ground improvement for road construction. Doctoral thesis in Geology. Ha Noi (In Vietnamese).
Nguyen Thi Nu, (2016a). Geotechnical properties of soft clayey soil in the amQ22-3 formation in the coastal provinces of Mekong Deltal for road construction. Journal of Mining and Earth Sciences 6-10. 49-57
Nguyen Thi Nu, (2016b). Design approval for soft soil ground using prefabricated vertical drains and combination of vacuum preloading. Journal of Mining and Earth Sciences, 30/08/2016. 46-54. (In Vietnamese).
Nguyen Thi Nu, Bui Truong Son, Do Minh Ngoc. (2019). An Experimental study of reusing coal ash for base course of road pavement. Electronic Journal of Geotechnical Engineering 24(4), 945-960.
Nguyen Thi Nu, Bui Truong Son, Pham Van Hai. (2020a). Utilisation of ground granulated blast furnace slag (GGBFS) for soft soil improvement by deep mixing method. Journal of Mining and Earth Sciences 61 (1). 92-100. (In Vietnamese).
Nguyen Thi Nu, Do Minh Toan, Nguyen Viet Tinh, (2011). Determining the parameters of consolidation of amQ22-3 soft to very soft clay (CL, CH) distributed in Soc Trang area for calculating settlement of soil and ground improvement by vertical drains method. Journal of Mining and Earth Sciences 35/07/2011. 32-39. (In Vietnamese).
Nguyen Thi Nu, Nguyen Thanh Duong, Nguyen Van Phong (2019). The effects of salt contents on the geotechnical properties of some soft soils in the coastal area of Vietnam. Journal of Mining and Earth Sciences 60 (6), 51-60.
Nguyen Thi, N., Thinh, P. H., Son, B. T, (2019). Utilizing coal bottom ash from Thermal Power Plants in Vietnam as partial replacement of aggregates in concrete pavement. Journal of Engineering, 2019
Nhu Viet Ha, (2020). Challenges and approaches in three-dimensional modeling the engineering geological conditions of Hanoi area. Journal of Mining and Earth Sciences 61 (2). 1-9.
Nu, N. T., Toan, D. M., Thinh, P. H, Son, B. T., (2020b). Determination of Particles and Minerals Content in Soft Clay Soil of the Mekong Delta Coastal Provinces, Southern Vietnam for Inorganic Adhesives Stabilization. Determination of Particles and Minerals Content in Soft Clay Soil of the Mekong Delta Coastal Provinces, Southern Vietnam for Inorganic Adhesives Stabilization. Iraqi Journal of Science 61(4). 791-804.
Perera, D., Indraratna, B., Leroueil, S., Rujikiatkamjorn, C., and Kelly, R., (2017). Analytical model for vacuum consolidation incorporating soil disturbance caused by mandrel-driven drains. Canadian Geotechnical Journal 54(4). 547-560.
Tavenas, P., Jean, P., Leblond, P., and Leroueil, S, (1983). The permeability of natural soft clays. Part II: permeability characteristics. Canadian Geotechnical Journal 20. 645-659.
Các bài báo khác
Toà soạn Tạp chí Khoa học kỹ thuật Mỏ - Địa chất
Phòng Xuất Bản - Trường Đại học Mỏ - Địa chất
Số 18 Phố Viên, P. Đức Thắng, Q. Bắc Từ Liêm, Hà Nội
Tel: (+84-24) 3219 1509 Fax: (+84-24) 3838 9633 
Email: tapchi@humg.edu.vn