徐州铁路枢纽夹北线改线建桥工程方案研究

Study on Construction Program of Line Relocation and Bridge Building on Jiahezhai-Xuzhoubei Line of Xuzhou Railway Hub

在阐述徐州铁路枢纽夹北线现状的基础上,针对大山1号和2号特大桥设备老化、病害严重等问题,从特大桥病害严重、特大桥建设标准过低、实施新线新桥方案意义重大3个方面分析改线建桥,并且提出改线建桥工程方案的总体设计原则,结合夹北线重载、运营繁忙的现状,从平面设计、纵断面设计、拟建特大桥设计3个方面提出的改线建桥工程总体研究方案。

Based on expounding status of Jiahezhai-Xuzhoubei line of Xuzhou railway hub, targeting with problems existing in Dashan No.1 and No.2 Extra-long Bridges like equipment aging and serious defects, this paper analyzes the line relocation and bridge building from 3 aspects such as serious defects in the extra-long bridge, low building standard of the extra-long bridge and significant meaning in implementing the program of new line and new bridge. The paper also puts forward the general design principle of the construction program of line relocation and bridge building, and combining with status of busy heavy haul and operation on Jiahezhai-Xuzhoubei line, puts forward general research program of the line relocation and bridge building from 3 aspects including plane design, design of vertical section and design of extra-long bridge proposed to built.