Unconfined Compressive Strength of Compacted Disturbed Cement-Stabilized Soft Clay

被引：22

作者：

Ayeldeen M. ^{[1
]}

Hara Y. ^{[2
]}

Kitazume M. ^{[2
]}

Negm A. ^{[3
]}

机构：

[1] Structural Engineering Department, Faculty of Engineering, Tanta University, Tanta

[2] Civil and Environmental Engineering Department, Tokyo Institute of Technology, Tokyo

[3] Civil Engineering Department, Faculty of Engineering, Zagazig University, Zagazig

来源：

International Journal of Geosynthetics and Ground Engineering | 2016年 / 2卷 / 4期

基金：

日本学术振兴会;

关键词：

Compaction; Pneumatic flow mixing; Soil disturbance; Stabilized soft clay; Unconfined compressive strength;

D O I：

10.1007/s40891-016-0064-4

中图分类号：

学科分类号：

摘要：

Pneumatic flow mixing method is a new land reclamation method, developed in Japan to meet the persistent lack of space. In this method dredged soft soil is mixed with a small amount of stabilizing material (such as cement) during transporting the soft soil in a pipe using compressed air to be used for land reclamation. In some cases, the soil/cement mixture is stored in temporary place for days and then transported and compacted at the required place. Basically, the cement chemical reaction starts immediately after the mixing with the soft soil and the mixture starts to gain its strength, therefore disturbing the mixture after days from the mixing influences the mixture strength. However, the soil/cement mixture is still able to gain extra strength after disturbance, transportation, and compaction. This study aims to evaluate the effect of dynamic compaction on the shear strength of disturbed cemented soft soil mixture experimentally. The mixture was fully disturbed after one week from mixing with cement. Three cement/soil ratios were used in this study under different dynamic compaction energies. Unconfined compression test was conducted at various curing times for both disturbed and non-disturbed specimens. © 2016, Springer International Publishing Switzerland.

引用

共 38 条

[1]

The Fifth District Port Construction Bureaus, Pneumatic Flow Mixing Method

[2]

Kitazume M., Hayano K., Strength properties and variance of cement-treated ground using the pneumatic flow mixing method‏, Proc Inst Civ Eng—Gr Improv, 11, 1, pp. 21-26, (2007)

[3]

Kitazume M., Satoh T., Development of a pneumatic flow mixing method and its application to Central Japan International Airport construction‏, Proc Inst Civ Eng—Gr Improv, 7, 3, pp. 139-148, (2003)

[4]

Kitazume M., Satoh T., Quality control in Central Japan International Airport construction, Proc Inst Civ Eng—Gr Improv, 9, 2, pp. 59-66, (2005)

[5]

Yamauchi H., Ishiyama Y., Oonishi F., Study for Beneficial Use of Soft Dredged soil—case History of Back Fill behind the Breakwater at Kushiro Port, (2011)

[6]

Horpibulsuk S., Miura N., Nagaraj T., Assessment of strength development in cement-admixed high water content clays with Abrams’ law as a basis, Geotechnique, 53, 4, pp. 439-444, (2003)

[7]

Horpibulsuk S., Miura N., Bergado D.T., Undrained shear behavior of cement admixed clay at high water content, J Geotech Geoenviron Eng, 130, 10, pp. 1096-1105, (2004)

[8]

Horpibulsuk S., Liu M.D., Liyanapathirana D.S., Suebsuk J., Behaviour of cemented clay simulated via the theoretical framework of the structured cam clay model, Comput Geotech, 37, 1-2, pp. 1-9, (2010)

[9]

Horpibulsuk S., Rachan R., Suddeepong A., Liu M.D., Jun Y., Compressibility of lightweight cemented clays, Eng Geol, 159, pp. 59-66, (2013)

[10]

Horpibulsuk S., Wijitchot A., Nerimitknornburee A., Shen S.L., Suksiripattanapong C., Al S.H.E.T., Factors influencing density and strength of lightweight cemented clay, Q J Eng Geol Hydrogeol, 47, pp. 101-109, (2014)

← 1 2 3 4 →