CIVIL ENGINEERING SUPPORT STRUCTURES

摘要

A civil engineering support structure for example a railway track comprises a bed of ballast (4) supporting a rail track comprising rails (1, 2) and sleepers (3). The ballast (4) is at least partially bonded with a polymer binder down to a level (6). A reinforcing element (7) such as a horizontally disposed mesh of galvanised steel, or polypropylene, is disposed in the bonded part of the ballast bed (4). Other types of reinforcement may be used such as transverse tie rods. The resin may be selectively applied to the ballast - e.g. only in the spaces between sleepers and / or the edge region of the ballast outside the ends of the sleepers.