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南水北调京石段S14标渠道与朔黄铁路相交,渠道须通过框架桥穿越朔黄铁路线,交叉桩号295+465(设计桩号)=铁路里程K313+138。朔黄铁路为重载运煤专线,行车密度大。框架桥轴线与铁路中心线夹角为86°36′,顶板厚度120cm,底板厚度140cm,边墙厚度130cm,中墙厚度l20cm,结构净高9.9m,结构总高12.5m,结构跨度2×13m,框架桥主体宽度29.8m,框架桥主体长度30m。为确保施工过程中行车和施工安全,必须详细辨识施工中的不安全因素,合理制定安全措施,减少施工对铁
Intersection S14 of Jingshi Section of South-to-North Water Diversion Project and Shuo-Huang-Huang Railway, the channel must cross the line of Shuohuang Railway through the frame bridge with cross stake 295 + 465 (design stake) = railway mileage K313 + 138. Shuohuang Railway overloaded coal green, traffic density. The angle between the axis of the bridge and the centerline of the railway is 86 ° 36 ’, the thickness of the roof is 120cm, the thickness of the floor is 140cm, the thickness of the wall is 130cm, the thickness of the wall is l20cm, the height of the structure is 9.9m, the total height is 12.5m and the span is 2 × 13m , The width of the main frame of the bridge 29.8m, the length of the main frame of the bridge 30m. In order to ensure traffic safety and construction safety during the construction process, it is necessary to identify in detail the unsafe factors in construction, reasonably formulate safety measures and reduce the construction load on iron