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一、概述道岔侧向过岔速度基本上决定于两参数,导曲线半径和车轮对尖轨的冲击角。我国现行的12号道岔侧向容许过岔速度为45km/h。目前正在推广的60AT12号道岔,虽然采用曲线弹性可弯尖轨,导曲线半径为350m,但侧向容许过岔速度仍为45kin/h。这均是由车轮自直
I. Overview Turnout side turnout speed is basically determined by two parameters, the guide curve radius and the impact angle of the wheel on the sharp rail. China’s current No. 12 turnout lateral allowable speed of 45km / h. 60AT12 currently being promoted switch, although the use of curved flexible bend rail, guide curve radius of 350m, but the lateral allowable speed is still 45kin / h. This is by the wheel straight