嵌岩桩在铁路桥梁施工中的应用

Socketed Pile's Application in Railroad Bridge Construction

随着现代成桩工艺、桩体结构的检测技术与桩的承载力等方面的进步和提高,桩与桩基础得到越来越广泛的应用,当桥梁上部结构荷载较大,而适合作为持力层的岩层又埋藏较浅,或虽然可作为持力层的土层埋藏不深但其下又存在软弱下卧层,用天然浅基础不能满足结构物对地基强度、变形和稳定性方面的要求时,嵌岩桩作为桩基础的一种形式往往是常用的一种基础。本文结合武广客运专线桥梁基础的施工,对嵌岩桩在铁路桥梁施工中的注意事项加以论述。

With modem pile technology, progress of pile structure of the bearing capacity and pile testing technology, are more and more widely used, when the bridge superstructure loads more and suitable bearing layer of rock buried shallower. Although they can be used as the bearing layer of soil is not buried under deep, there is another layer of soft, natural light with a structure based on the foundation can not meet the strength, deformation and stability request, rock-socketed pile foundation as a form of pile is often used as a basis. Combined with Wu-guang Passenger Line bridge construction, matters need attention in rock-socketed piles railway bridge construction are discussed.