Advances in Earth Science ›› 2017, Vol. 32 ›› Issue (2): 209-219. doi: 10.11867/j.issn.1001-8166.2017.02.0209

• Orginal Article • Previous Articles    

Progress Review and Perspective Problems on Loess Foundation Reinforcement by Means of Modification Treatment

Na Li 1( ), Junjie Sun 1, 2, Qian Wang 1, 2, *( ), Xiumei Zhong 1, 2, Minjie Feng 3, Peng Guo 1   

  1. 1.Key Laboratory of Loess Earthquake Engineering, Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China
    2.Geotechnical Disaster Prevention Engineering Technology Research Center of Gansu Province, Lanzhou 730000,China
    3.Pingliang Earthquake Administration, Pingliang Gansu 744000,China
  • Received:2016-10-12 Revised:2017-01-08 Online:2017-02-20 Published:2017-02-20
  • Contact: Qian Wang;
  • About author:

    First author:Li Na(1992-),female,Minqin County, Gansu Province,Master student. Research areas include geotechnical earthquake

  • Supported by:
    Project supported by the Basic Research Fund of Earthquake Prediction Institute, China Earthquake Administration “Study on dynamic response characteristics of excavation-filling site in loess hilly-gully area”(No.2013IESLZ05);The National Natural Science Foundation of China “The complex stress on the deformation characteristics of saturated loess under dynamic force”(No.51408567)

Na Li, Junjie Sun, Qian Wang, Xiumei Zhong, Minjie Feng, Peng Guo. Progress Review and Perspective Problems on Loess Foundation Reinforcement by Means of Modification Treatment[J]. Advances in Earth Science, 2017, 32(2): 209-219.

Based on the loess foundation modification mechanism, the methods and progress of loess foundation modification treatment application research in engineering were analyzed. The main points of the research on static and dynamic mechanical properties of modified loess were discussed. Meanwhile, the advantages and disadvantages of different modification methods were compared. Finally, the research direction of loess foundation modification in future was pointed out. The results show that there are different mechanisms between physical and chemical modifications in loess foundation. At present, researches on loess modification pay more attention to the strength and stability of the foundation under static load, which is lacking in the consideration of dynamic behaviors of loess foundation and environment factors. Research results are greatly biased, and the systematic, quantitative properties as well as standardization are weak. There is no doubt that some research directions should be concerned in future such as the research of new environmentally friendly materials and modified loess soil strength, stability of modified loess and dynamic behaviors, quantitative effect of environmental factors on the modified foundation, optimization of construction technology and fine control of construction process in the process of loess foundation modification.

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