Abstract:In municipal road asphalt construction, equipment management efficiency directly affects project quality and cost. The traditional model emphasizes technology over economy, leading to waste of resources and loss of control over costs. Taking the Jianshe Highway (Tuancheng Highway - Beiyan Highway) Reconstruction and Expansion Project as the background, and aiming at the complex scenarios of wide pavement and multi-bid-stage synchronous construction, a dual-dimensional collaborative system of "logistics support - economic control" is innovated and built. In the logistics dimension, the road design parameters are precisely matched through equipment selection, and the seamless construction of wide pavements is achieved by adopting the tiered paving process. A dynamic allocation mechanism based on construction simulation is built to significantly reduce the number of redundant equipment. A hierarchical maintenance system is implemented to strengthen the preventive maintenance and to form a closed-loop management of "daily monitoring - regular maintenance - special overhaul". A life cycle cost (LCC) accounting model is introduced in the economic dimension to systematically quantify the long-term input-output ratio of the equipment. An "efficiency-cost" dual-objective optimization algorithm is developed to generate the optimal equipment combination schemes suitable for different road widths. Through the three-link deep coordination of planning selection, dynamic scheduling and maintenance control, the equipment utilization rate has been increased from 65% to 82%, the idle rate has been reduced from 25% to 7%, the total cost has been reduced by 17.2%, and the maintenance cost proportion has been reduced by 4.5%. At the same time, the compaction and smoothness of the asphalt surface layer have been ensured to meet the standards. This system provides some new ideas for the pain points of the construction equipment management industry, which emphasizes technology over economy.
