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一、目前公路超限运输的危害 1、公路呻吟、桥涵哭泣、缩短路桥使用寿命。超限车辆由于其车货总质量超过公路桥涵设计标准即承载能力,而造成公路桥涵、路面使用寿命缩短。其主要原因是,因为超重超限车辆多余载重部分(即质量)不能在各轴间合理分配,而造成轴荷超限,使公路路面在有效使用期内弹性变形的次数大大减少,致使路面始终处于超负荷疲劳状态,造成路面长期损坏。据分析,车辆每超载一倍,对路面的损害就增
First, the current dangers of excessive road transport 1, highway moaning, bridge cry, shortening the service life of road and bridge. Overloaded vehicles due to the total quality of their vehicles over the highway bridge design standards that is carrying capacity, resulting in highway bridges and culverts, shortening the service life of the road. The main reason is that the excess load of overloaded vehicles (ie, mass) can not be reasonably distributed among the shafts and the axle load exceeds the limit, which greatly reduces the number of elastic deformations of the road surface during the effective use period, resulting in the continuous failure of the road surface In the overload fatigue state, resulting in long-term damage to the road. According to the analysis, every time the vehicle is overloaded, the damage on the road increases