山区复杂地形峡谷桥梁桩基及墩柱结构的施工技术

Technology for Pile Foundation and Pier Column of Canyon Bridge in Complex Mountainous Terrain

为了解决山区复杂地形条件下桥梁施工中极易出现的桥梁桩基及墩柱结构的技术问题,通过桥梁与沟谷的不同关系,对有效桥桩、最短安全桩长、安全襟边、有效入岩和嵌岩深度等关键技术参数进行有效控制。针对桩基及墩柱的设计及施工工艺、山区桩基在施工中及后期运营过程中的易发病害及处理措施进行了阐述,并提出建议,希望对类似工程起到指导作用。

In order to solve the technical problems of bridge pile foundation and pier column which are prone to occur in bridge construction under complex terrain conditions in mountainous areas,effective control of key technical parameters such as effective bridge pile,shortest safety pile length,safety edge,effective rock penetration and rock penetration depth was conducted based on the different relationship between the bridge and the valley.The design and construction technology of pile foundation and pier column,and the common diseases and treatment measures during the construction and later operation of pile foundation in mountainous areas,were expounded.Suggestions were made to similar projects for guidance.