“十五”期间大量基础设施的开工建设,对工程用载重卡车的需求日趋增长,对其性能和质量也有了更多、更高的要求。但目前国内此类产品的技术状况受到公路相关法规的限制。公路或公矿两用载重卡车的载重量在15t以上时就需采用三轴支承,而要达到25t级时,则需四轴支承。但在施工现场,特别在道路狭 During the “Tenth Five-Year Plan” period, a large number of infrastructure projects were under construction and the demand for engineering trucks increased. More and more demands were placed on its performance and quality. However, at present, the technical status of such domestic products is limited by the relevant laws and regulations of the highway. Three-axle support is required when the load of road or highway dual-purpose truck is above 15t, and four-axle support is required to reach 25t level. But at the construction site, especially in the narrow road