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.