论文部分内容阅读
在增建二线施工中有大量的平改立施工中涉及到了D型便梁技术的使用,D型便梁为定型标准化构件,其架设主要受铁路限界、既有线的线间距和曲线半径及超高等因素影响。通常采用通过调节轨顶至D型便梁顶的距离(H)的方法使得D型便梁安全、顺利地架设在线路上。D型便梁基础一般采用搭枕木垛或浇注砼,施工单位根据设计给出的地基承载力经计算确定支墩形式。施工中要加强安全控制,确保行车安全。通过D型便梁加固线路大大减少了对营业线运输的干扰。
In the construction of second-line construction, there are a large number of flat-changing construction involves the use of D-shaped beam technology, D-shaped beam for the standardization of fixed components, the erection of the main railway by the line, the existing line spacing and curve radius and ultra- Higher factors affect. Usually by adjusting the top of the D-beam to the top of the distance (H) method makes the D-beam easy and safe erection of the line. D-type general basis for the use of bentonite pillow or poured pouring concrete, the construction unit according to the design given bearing capacity of foundation calculated by the pier form. Construction to strengthen safety control, to ensure traffic safety. Reinforcing the line with the D-beam greatly reduces any disruption to the line of business.