Volume 38 Issue 6
Dec.  2024
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Zhang Liangbing, Pan Qihui, Han Yinshan. Analysis and Treatment of Subgrade Settlement in a Certain Section of the Yechi Railway[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2024, 38(6): 712-717. doi: 10.3969/j.issn.1007-2993.2024.06.011
Citation: Zhang Liangbing, Pan Qihui, Han Yinshan. Analysis and Treatment of Subgrade Settlement in a Certain Section of the Yechi Railway[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2024, 38(6): 712-717. doi: 10.3969/j.issn.1007-2993.2024.06.011

Analysis and Treatment of Subgrade Settlement in a Certain Section of the Yechi Railway

doi: 10.3969/j.issn.1007-2993.2024.06.011
  • Received Date: 2023-11-22
  • Accepted Date: 2024-03-11
  • Rev Recd Date: 2024-01-01
  • Publish Date: 2024-12-06
  • A certain section of the Yechi Railway was affected by subgrade settlement disease. Through on-site geological investigation and analysis, it was found that the mining of coal seams changed the stress balance state of the surrounding strata, causing plastic deformation of the fault fracture zone along the F1 fault downwards, in addition, the Quaternary strata experienced drift sand along the fault, ultimately leading to subsidence and deformation of the ground. Based on the engineering situation, the treatment scheme of grouting in the Quaternary strata and grouting in fault zones was adopted to improve the mechanical properties of the Quaternary strata in the railway roadbed and enhance the plastic deformation resistance of the fractured zone. The characteristics of directional quantitative sizing and repeatability of sleeve valve pipe grouting were reflected by this plan. This scheme can provide a reference for similar projects.

     

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