摘要
桥头引道段由于不良地基沉降、台背填料压缩引起路基的沉降等因素,造成搭板与基层之间存在不同程度的脱空现象,若不及时处理,在长时间车辆荷载不断作用下,搭板会逐渐变得松动,在搭板尾部沥青砼表面产生横裂,若雨水渗入,将产生啃边、唧浆甚至破损,从而形成跳车,该文以武汉绕城公路北湖特大桥桥台搭板脱空现象进行注浆加固,实践表明,这一技术对缓减桥头跳车现象起到了至关重要的作用。
Roadbed settlement caused by the settlement of ground and compression in back abutment and other factors of bridge approach section creates separation between the slab and the roadbase in some degree, if not handled timely, in the long time under vehicles load, slab will become gradually loose and produce horizontal cracks in the surface of asphalt concrete in back of slab, if rain water permeating, it will have a chew on edge, even jack pulp damaged, thus bump, in this paper, Wuhan Orbital Highway North Lake bridge void slab grouting, the practice showed that this technology to lighten and reduce bridgehead Bump plays a very crucial role.
出处
《国外建材科技》
2008年第5期108-110,共3页
Science and Technology of Overseas Building Materials
