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| Roadbed Subsidence Prediction and Its Security Evaluation |
| Li Yongshu 1，Han Liping 2 |
| (1 School of Civil Eng.，Southwest Jiaotong University，Chengdu 610031 China) (2 School of Computer and Comm. Eng.，Southwest Jiaotong University，Chengdu 610031 China) |
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Abstract A roadbed subsidence pattern for predicting the security of roadbed in ground subsidence area with complicated structure strata and any shape of excavations is proposed in this paper. The methods for computing the values of the movements and deformations of the roadbed characteristic points are investigated. The calculating formulae for predicting the roadbed subsidence，inclined deformation，curvature deformation，horizontal displacement and horizontal deformation are provided. The methods for evaluating roadbed security and predicting disastrous accidents of roadbed in ground subsidence area are also discussed. Finally，a practical example is given for applying the method to evaluate roadbed security.
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1 Li Yongshu，Wang Jinzhuang. Surface subsidence pattern for mining anticlinal structure ore seam[J]. Chinese Journal of Geotechnical Engineering(Chinese)，1998，20(6)：67～70
2 Li Yongshu，Han Liping. Method for defining integral region of any shape of mining face[J]. ACTA Geodaetica et Cartographica Sinica (Chinese)，2000，29(2)：166～171
3 Galvin M. Subsidence control in urban environments[J]. Mining Engineering，1995，19(1)：43～45
4 Li Yongshu，Han Liping. An approach to the critical deformation value of railway in surface subsidence area[J]. Mining Research and Development(Chinese)，2000，20(5)：13～16
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KANG Hongpu1, 2, 3*, GAO Fuqiang1, 2, 3, WANG Xiaoqing1, 2, 3, YUAN Guiyang1, 2, 3, YANG Lei1, 2, 3, LOU Jinfu1, 2, 3. Development and application of a large-scale experimental system for roadway rockburst induced by fault slip[J]. , 2026, 45(6): 1599-1614. |
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2002, Vol. 21 
