Analysis of Uneven Settlement and Deformation of the Existing Railway under the Condition of Mined-out Area after Mining

• DOI: 10.23977/jceup.2023.050809
• Publication Date: 2023-09-16T09:44:18Z
• Authors: wei-jian Yu; Haijun Li; Yudong Li; Yaojiang Liu; Zhenrong Zhao; Rongjian Li; Guobing Wang
• Keywords: Settlement (finance); Railway line; Railway tunnel

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