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1混凝土岔枕设计原则（1）应满足列车提速运行条件。（2）岔枕间距为600mm。全部岔枕按垂直干道岔直股钢轨布置。（3）岔枕下部支承为厚度30cm的一级碎石道床。（4）垫板与混凝土岔枕的联结采用螺钉与预埋塑料套管，岔枕承轨面为无挡肩形式。（5）岔枕设计应考虑长线台座法与流
1 Concrete sleeper design principles (1) should meet the train speed operation conditions. (2) Turnout distance is 600mm. All bifurcated vertical straight rail fork rail arrangement. (3) sleeper lower support for the thickness of 30cm of a gravel bed. (4) The connection between the shim plate and the concrete sleeper sleeper adopts the screw and the embedded plastic casing pipe, and the sleeper rail bearing surface is in the form of no shoulder. (5) sleeper design should consider long-term pedestal method and flow