Author(s)

Weihu Yu ¹, Haijun Li ¹, Yudong Li ¹, Yaojiang Liu ², Zhenrong Zhao ², Rongjian Li ³, Guobing Wang ³

Affiliation(s)

¹ Railway Operation Company of Shanxi Lu'an Mining (Group) Co, Ltd, Changzhi, China
² China Railway Xi'an Survey, Design and Research Institute Co, Ltd, of CREC, Xi'an, China
³ Xi'an University of Technology, Xi'an, China

Corresponding Author

Rongjian Li

ABSTRACT

Due to the railway construction being ahead and the mining work being behind, it is inevitable for some mining areas to pass under the railway. However, at present, for the mining work face passes across under the railway there is a lack of research and evaluation on the deformation of the existing railway roadbed after the upper strata of the goaf were reinforced and repaired. Based on the deformation monitoring of roadbed after the 5301 mining face passed under the section form milepost DK1 290 to milepost DK2 755 of Gucheng Special Railway, the variation law of the uneven deformation of the existing railway roadbed on the goaf was studied. The research results indicated that the deformation in the transition area and the stable area of the existing railway roadbed was very small, while the subgrade deformation of the existing railway above the goaf was relatively large, and the maximum vertical displacement of railway subgrade was 7.8 cm within 3 months. According to the analysis of monitoring data, the deformation distribution law of existing railway subgrade above goaf was in shape of "V".

KEYWORDS

Deformation, wireless timely monitoring, goaf, transition area, stable area, existing railways

CITE THIS PAPER

Weihu Yu, Haijun Li, Yudong Li, Yaojiang Liu, Zhenrong Zhao, Rongjian Li, Guobing Wang, Analysis of Uneven Settlement and Deformation of the Existing Railway under the Condition of Mined-out Area after Mining. Journal of Civil Engineering and Urban Planning (2023) Vol. 5: 69-74. DOI: http://dx.doi.org/10.23977/jceup.2023.050809.

REFERENCES

[1] Ren L.W., Ning H., Zou Y.F., Dun Z.L., Guo W.B. and Tian Z.B. (2021) Research status and prospect on deformation control of high-speed railway subgrade in goaf site. Journal of China Coal Society, 46(08): 2534-2547.
[2] Zhang X.D., Sun Q., Du D.N. and Wei X. (2011) Numerical simulate research on the Benxi section of Shenyang to Dandong railway passenger dedicated line. The Chinese Journal of Geological Hazard and Control, 22(02): 104-107.
[3] Duan Y., Zhao P., Ning Q.Y. and Zhao, Y.S. (2014) Research on Instability Mechanism and Stability Numerical Simulation of Mined-out Areas of Non-coal Mines. Safety and Environmental Engineering, 21(06): 29-35.
[4] Jiang T.G. and Xu S.N. (2019) Monitoring and Analysis of Deformation in Underlying Goaf of Expressway. Inner Mongolia Coal Economy, 277(08): 117-125.
[5] Peng X.H. (2022) Deformation monitoring of goaf of Lüliang Ring Expressway based on InSAR technology. Transport Construction and Management, 488(03): 132-133.
[6] Fu Y.J. (2013) Deformation Prediction and Hazard Assessment for Mined-out Area along Nanning-Qinzhou Railway. Subgrade Engineering, 171(06): 208-212.
[7] Xu Y.M., Zhang R.K. and Li G.H. (2004) Stability Analysing of Railway Subgrade in the Large Coal Pits District. Railway Surveying and Surveying, (02): 75-77.
[8] Li S.P. (2022) Study on the Prediction of Ground Subsidence Induced by Solution Mining and the Engineering Treatment Measures for Railways Passing Through the Mine Field. Railway Construction Technology, 354(09): 169-173.
[9] Fan J.P. (2021) Analysis of the lnfluence of Goaf of a Gold Mine on Railway Stability. Engineering Design of the Ground, 454(08): 19-20+23.
[10] Wang S.R. (2007) Deformed Characteristics of Coal Mining Area along Baoxi Railway and Treatment Principle. Railway Surveying and Surveying, 131(04): 76-78.
[11] Zhang G.J. (2009) Exploration for Technical Scheme on Mined Areas Deformation Survey in Railway. Urban Survey, (02): 127-129.

Sponsors, Associates, and Links

---

• Journal of Sustainable Development and Green Buildings
  
  
• Landscape and Urban Horticulture
  
  
• Bridge and Structural Engineering
  
  
• Soil Mechanics and Geotechnical Engineering
  
  
• Journal of Municipal Engineering
  
  
• Heating, Ventilation and Air Conditioning
  
  
• Indoor Air Quality and Climate
  
  
• Computer Aided Architecture Design