## Journal of Central South University

 第48卷    第11期    总第279期    2017年11月

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(1. 北京科技大学 土木与资源工程学院，北京，100083； 2. 金川集团有限公司，甘肃 金昌，737100)

Mechanical model of filling blocking wall reinforcement based on two-way slab theory

1. School of Civil & Resource Engineering, University of Science & Technology Beijing, Beijing 100083, China; 2. Jinchuan group Co., LTD., Jinchang 737100, China

Abstract:Based on the “two-way slab” theory of concrete structure, the reinforcement of the filling blocking wall mechanical model was established, and the formula of amount of the filling blocking wall reinforcement with backfill strength and filling blocking wall thickness was elicited. Taking Jinchuan second mine as an example for engineering analysis, the rule of backfill strength and filling blocking wall thickness changing with the amount of filling blocking wall reinforcement by control variate method (CVM) was studied. The results show that, on the premise of certain size of filling blocking wall, the filling blocking wall thickness increases linearly with the increasing of strength of backfill; on the premise of certain size of filling blocking wall and the strength of backfill, there is a negative correlation between the amount of filling blocking wall reinforcement and the thickness of filling blocking wall; on the premise of certain size of filling blocking wall and the thickness of filling blocking wall, there is a positive correlation between the amount of filling blocking wall reinforcement and the strength of backfill. The final theoretical equation among the strength of backfill and the amount of filling blocking wall reinforcement was obtained.

Key words: filling blocking wall; mechanical model; influencing factor; variation law

 中南大学学报（自然科学版） ISSN 1672-7207 CN 43-1426/NZDXZAC 中南大学学报（英文版） ISSN 2095-2899 CN 43-1516/TBJCSTFT