基本轨是用一根12.5m或25m标准断面的普通钢轨制成，主股为直线，侧股按转辙器各部分的轨距在工厂事先弯折成规定的折线或采用曲线型。
转辙器包括基本轨、尖轨和转辙机械。
Point machines, including the basic tracks, a sharp rail and Switch machinery.
无缝道岔温度力的特点在于基本轨要承受附加温度力的作用，岔内钢轨受力和位移状况复杂。
The characteristic of the temperature stress in the jointless switch lies in supporting additional temperature stress on the stock rail, the stress and the displacement presents the complex nature.
提出了求解道岔转辙器部分尖轨与基本轨密贴区域内轮载在两钢轨上分布规律的力学模型与计算方法。
A mechanical model and its calculation method are advanced for calculating the variation regularity of load on the rails of the close contact section between switch point and stock rail.
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