We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
基于概率积分法的铁路穿越煤矿采空区沉陷影响分析.
- Authors
蔡瑞卿
- Abstract
An existing railway passes through the mined-out area of coal mine in K9+000~K13+000 section. The coal stratum in this area has the characteristics of large buried depth and various coal seams. Combined with engineering geological conditions and coal mining conditions, this paper analyzed the impact of coal mined-out subsidence on the railway based on the probability integral method, and compared it with the existing monitoring data. The result shows that, the current subsidence range of the railway is K9+310~K12+ 038, the maximum subsidence is calculated at K10+979 which is 4 947 mm. The actual maximum subsidence monitored is 4 862 mm, and the calculated results are basically consistent with it. After all the working sites are mined, the subsidence range is K9+235~K12+112, and the maximum settlement is calculated at K10+ 592, which is 8 213 mm. Corresponding remediation measures need to be taken to ensure railway safety.
- Subjects
LAND subsidence; COAL; RAILROADS; PROBABILITY theory; ENGINEERING
- Publication
Railway Investigation & Surveying, 2022, Vol 48, Issue 4, p47
- ISSN
1672-7479
- Publication type
Article
- DOI
10.19630/j.cnki.tdkc.202105110001