中国农业机械化科学研究院集团有限公司 主管

北京卓众出版有限公司 主办

暗道成型固壁装备结构设计

Structure design of tunnel-forming wall strengthening equipment

  • 摘要: 暗道成型固壁装备是盐碱地治理的关键装备,其结构性能决定施工作业质量、牵引装置选择、高程调控准确度等。基于有限元分析方法,采用静力学分析和显示动力学分析方式,得到结构的力学特性和切削阻力变化曲线。结果表明,在水平作用力40 kN时,结构强度满足要求,在作业速度1.5 km/h、最大作业深度60 cm工况下,动态切削阻力<15 kN,结合牵引特性和地面摩擦系数等综合因素,配套牵引装置牵引力应>40 kN,即动力>132.3 kW,经试验验证,暗道成型固壁装备可以较好完成暗道开沟作业,结构设计满足实际使用要求,为盐碱地整治相关装备和配套属具提供了设计支撑。

     

    Abstract: Tunnel-forming wall strengthening equipment is a critical apparatus for saline-alkali land improvement.Its structural performance determines construction quality, towing equipment selection, and elevation control accuracy.Based on finite element method, static analysis and explicit dynamics analysis were employed to derive structural mechanical properties and cutting resistance variation curves.Results demonstrated that structural strength met requirements under a horizontal load of 40 kN.At operating speed of 1.5 km/h and maximum operating depth of 60 cm, dynamic cutting resistance remained below 15 kN.Considering comprehensive factors including tractive characteristics and ground friction coefficient, towing equipment's traction force should exceed 40 kN, equivalent to power exceeding 132.3 kW.Experimental verification confirmed that tunnel-forming wall strengthening equipment successfully accomplished tunnel excavation tasks.Its structural design satisfies practical operational requirements, providing foundational engineering support for remediation equipments and attachments related to saline-alkali land improvement.

     

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