【摘要】 本文首先对京沪高速铁路各个时期所能实现的最高速度进行了论证，并据此推算出最小曲线半径值；根据大站前后各个路段可能实现的行车速度，拟定了其相应的曲线半径标准；最后对国曲线的最小长度、缓和曲线长度，最小转向角与曲线地段线距加宽等曲线设置问题，提出了商榷意见．更多还原

【Abstract】 The paper first demonstrates the maximum speeds that can be achieved at the different stages of Beijing-Shanghai High-speed Railway and derives the minimum curve radius on the basis of them. And then according to the operation speeds that can be achieved in the sections before and after an important station, the corresponding curve radius standards are worked out.Finally,the problems of setting up the curve,such as the minimum length of circular curve,the length of transition curve and the minimum angle of ratation and the widening of distance interval between fracks,are discussed and tentative suggestions presented.更多还原