钢筋混凝土挡板墙在铁路复线施工中的应用

采用钢筋混凝土挡板墙对既有线进行防护，是一种行之有效、经济可靠的方法。就宝成铁路新增二线草房沟中桥桥台施工采用钢筋混凝土挡板墙进行施工防护，从结构原理及施工工艺等方面作了详细介绍。实践证明，采用钢筋混凝土挡板墙对既有线进行防护是成功的，具有一定的推广价值。

The Application of Reinforced Concrete Built-up Retaining Walls in Double-Track Railway Construction

Using the reinforced concrete built-up retaining walls to protect existing lines is an effective, economical and reliable method. This article, in light of the bridge abutment construction practice of Caofanggou middle bridge in new second line of Bao-Cheng Railroad, introduces in detail the structure principles and construction techniques of using the reinforced concrete built-up retaining walls to protect construction. The practice proved that using the retaining walls is successful, and has certain promotional values.