为降低线路成本，杜绝钢轨侧面磨损大，延长钢轨使用寿命，齐矿工务车间对曲线现状进行调查，其现状为：110m降段第一曲线铺设时，半径为300m，最高速度为30km／h，超高为23mm。110m降段线是重车下坡行驶惯性大、速度快，时速达到35km／h，则应超高54mm。从现状调查中得知，重 In order to reduce the cost of the circuit, eliminate the side wear of the rail and prolong the service life of the rail, Qiqiwa workshop investigates the current situation of the curve. The current situation is as follows: When the first curve of 110m downhill is laid, the radius is 300m and the maximum speed is 30km / Super high 23mm. 110m downhill line is heavy truck downhill driving inertia, speed, speed 35km / h, it should be ultra-high 54mm. From the investigation of the status quo, heavy