露天采矿技术2026，Vol.41Issue(4)：18-23,6.DOI:10.13235/j.cnki.ltcm.20250354
露天煤矿重载模块化桥梁设计与能力校验
Design and capacity verification of heavy-duty modular bridges in open-pit coal mines
许蕾 1刘宏伟 1邢翼 1王帅1
作者信息
- 1. 中煤科工集团沈阳设计研究院有限公司,辽宁沈阳 110015
- 折叠
摘要
Abstract
As the open-pit coal mines expand into deeper and more geologically complex areas,the transportation system has become a critical factor restricting production efficiency.To address the traffic interference and efficiency reduction caused by the intersection of belt conveyors and truck transportation roads after the crushing station is moved underground,this article proposes a heavy-duty modular bridge structure to solve the problem of grade-separated line crossings.The heavy-duty modular bridge adopts a steel box girder structure,which has the advantages of high strength,reusability and rapid construction.The structural design is carried out in strict accordance with multiple standards such as the"Code for Design of Highway Steel Structure Bridges",and a refined finite element model is built based on the Midas-FEANX platform to systematically analyze the stress distribution and deformation response of the bridge under the load of 400 t class mining trucks.The results show that under the most unfavorable load conditions,the stress at all parts of the bridge structure is less than the yield strength of the material,the maximum deflection is far lower than the specification limit,the bridge structure is in an elastic working state,and the structure has good safety and stability.The movable heavy-duty modular steel bridge can solve the problem of grade-separated line crossings formed after the crushing station is moved underground,greatly shorten the transportation distance,ensure the safe collaboration between equipment,and improve transportation efficiency.关键词
露天煤矿运输系统/线路立体交叉/重载模块化桥梁/钢箱梁结构/有限元分析Key words
open-pit coal mine haulage system/grade-separated line crossing/heavy-duty modular bridge/steel box girder structure/finite element analysis分类
矿业与冶金引用本文复制引用
许蕾,刘宏伟,邢翼,王帅..露天煤矿重载模块化桥梁设计与能力校验[J].露天采矿技术,2026,41(4):18-23,6.
