武汉北编组站川龙大道公跨铁1#桥实施性施工组织设计.doc

本公路桥位于原川龙大道上，因武汉北编组站建设，需要抬高路面高程改路为桥，上跨该编组站诸条铁路线路，在此处的原路面宽度为34m，路面组成为非机动车道（3m）+绿化带（6m）+行车道（16m）+绿化带（6m）+非机动车道（3m）。在K10+700以前一段已经建成，其中K10+600.40以前部分已经建成水泥路面，K10+600～K10+700为填土路基，K10+700 以后部分以前设计为上跨既有京广铁路的桥梁，但搁置未建。本次结合武汉北编组站将原有路面抬高，改成一座桥梁，即K10+267.44 川龙大道1#桥。
该桥起点为K10+226.90，终点为K10+307.98，桥全长81.08米，为（20+35+20）米跨预应力混凝土简支板、箱梁桥，20米为空心板梁，35米为箱梁。下部结构为桩柱墩，桥台为桩柱台，基础为桩基础，共有φ1.2米桩12根,φ1.6米桩8根，桩底置于强风化
The original road bridge at Chuen Lung Avenue, Wuhan, North Marshalling Station for construction of the road need to raise the elevation change road to the bridge, the span of the various railway marshalling yard line, here's the original road width of 34m, the composition of non-road Vehicle Road (3m) + green belt (6m) + lane (16m) + green belt (6m) + non-motor vehicle lanes (3m). In the K10 +700 section has been completed before, some of which have been built before K10 +600.40 cement pavement, K10 +600 ~ K10 +700 to fill roadbed, K10 +700 design later part of the previously existing Beijing-Guangzhou railway on the cross-bridge but not built shelving. The combination of Wuhan North Marshalling Station of the original road elevation, into a bridge, that K10 +267.44 Chuen Lung Road 1 # bridge.
The bridge from the K10 +226.90, finish at K10 +307.98, bridge length 81.08 m, as (20 +35 +20) m span prestressed concrete simply supported plate girder bridge, 20 meters for the hollow beam, 35 meters the box. Substructure is pile pier, abutment pile platform for the foundation for the pile foundation, pile 12 meters, a total of φ1.2, φ1.6 m pile 8, pile placed in highly weathered