The Research on Treating Collapsible Loess by Down Whole Deep Compaction and Cement Fly-ash Gravel

Authors

  • Tao Xue The Fifth Engineering Co., Ltd. of CCCC Tunnel Engineering Co., Ltd
  • Shang Gao The Fifth Engineering Co., Ltd. of CCCC Tunnel Engineering Co., Ltd

DOI:

https://doi.org/10.30564/frae.v2i1.485

Abstract

The treatment of loess foundation is always diffcult. The analysis of its advantages and mechanism of treating loess foundation by CFG, on the base of project geology, through construction example, we suggest the compound plan by both DDC and CFG. The tests illustrates that the down hole deep compaction and cement-fly ash-gravel are effective foundation treatment method to eliminate the collapsibility of loess, increase the bearing capacity and improve the behavior of composite foundations.

Keywords:

Down hole deep compaction; Cement fly ash-gravel; ; Collapsible loess; Bearing capacity

References

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[3] JGJ94-94, Criterion of Construction pile foundation[S].Beijing: China Architecture and Building Press, 1995. (in Chinese)

[4] Q/TY06-1997, Technology specification of cement-fly ash gravel pile and CFG pile composite foundation[S]. (in Chinese)

[5] Kyle M. Rolins Ji-Hyoung Kim, U.S. Experience with dynamic compaction of collapsible soils[J]. Journal of Geotechnical and Geo-environmental Engineering, 1998(8):699-707.

[6] YAN Ming li. Technology of foundation treatment[M]. Beijing: China Environmental Science Press, 1993. (in Chinese)

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Issue

Vol. 2 , Iss. 1 (January 2019)

Article Type

Research Paper

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