铁运处在曲线加宽养护中，采用的是经验法，养护的质量总是达不到要求。
Experience is usually applied in maintenance for widening curve railway, but maintaining quality fail to reach the requirement.
阐述了以往平曲线加宽的方式，分析了凸型曲线的特点，提出了凸型曲线采用以往加宽方式的不妥及处理思路。
The paper introduced add wide way of protrudings string, analyze characteristics of protrudings string and put forward a method to add wide way on protrudings string.
据此对小半径曲线加宽、横向超高及中心线设计中可能存在的安全问题进行了研究，提出了相对山区公路小半径曲线的道路安全设计建议。
Hereby this paper researches the likely issue in curve widen, horizontal slope and center traffic line, and presents correspond advice of road safe design.
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