龙厦铁路象山特长隧道注浆标准的制定

Establishment of Grouting Standard for Xiangshan Extra-long Tunnel on Longyan-Xiamen Railway

针对龙厦铁路象山特长隧道地下水特点(类型多、水文地质条件及赋存环境复杂、水量大、水压高等),制定了象山隧道超前预注浆、后注浆(径向注浆)的起始条件、注浆方式、注浆材料、主要注浆参数、结束标准、工艺以及质量检查、评价方法等内容,具有适用性和操作性强的特点,并在象山隧道施工中应用,效果良好。对类似工程有一定的指导和借鉴意义。

The ground water of Xiangshan extra-long tunnel on Longyan-Xiamen railway has various types, complicated hydrologic conditions and occurrence environment, huge water volume and high water pressure. Regarding these features of the ground water, water-sealing grouting standard is established and executed and satisfactory effects have been achieved. The water-sealing grouting standard, which contains grouting commencement conditions, grouting modes, grouting materials, grouting parameters, grouting completion criteria, grouting process and grouting quality inspection and evaluation methods, has strong applicability and operationability. The water-sealing grouting standard and the major factors considered in the establishment of the standard can be served as reference for similar projects in the future.