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中南大学学报(自然科学版)

Journal of Central South University

第48卷    第11期    总第279期    2017年11月

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文章编号:1672-7207(2017)11-3006-07
基于双向板理论充填挡墙配筋力学模型
张爱卿1,吴爱祥1,韩斌1,于少峰1,常宝孟1,王虎1, 2,武栓军1, 2

(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)

摘 要: 基于混凝土结构双向板理论,建立钢混充填挡墙配筋力学模型,并推导出充填挡墙配筋数量与充填体强度及充填挡墙厚度的关系式。以金川二矿区为工程分析实例,采用控制变量法(CVM)研究充填体强度和充填挡墙厚度与充填挡墙配筋数量的变化规律。研究结果表明:在充填挡墙尺寸一定的前提下,充填挡墙的厚度随着充填体强度的增大呈线性增大;当充填挡墙尺寸和充填体强度一定的前提下,充填挡墙的配筋数量与充填挡墙的厚度呈二项式相关,当充填挡墙尺寸和充填挡墙厚度一定的前提下,充填挡墙的配筋数量与充填体强度呈线性相关。最终得到充填体强度与充填挡墙配筋数量的理论关系式。

 

关键字: 充填挡墙;力学模型;影响因素;变化规律

Mechanical model of filling blocking wall reinforcement based on two-way slab theory
ZHANG Aiqing1, WU Aixiang1, HAN Bin1, YU Shaofeng1, CHANG Baomeng1, WANG Hu1, 2, WU Shuanjun1, 2

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/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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