坡积土层中巷道掘进施工实践

Construction practice of roadway excavation in cliff debris layer

针对某露天矿平巷掘进时遇到坡积砂土层而无法采用常规方法进行施工的问题,在充分调查该施工区域工程地质条件的基础上,通过采用超前固结及管棚超前支护的技术,从而达到巷道掘进的要求,对矿区坡积砂土层水平巷道掘进有一定的指导意义。

The construction technology of advance consolidation and advance support with pipe roof is introduced based on the full investigation of engineering geological conditions in the construction area to address the problem of the cliff debris layer unable to be constructed by the conventional method in the roadway excavation in an open-pit mine, thereby meeting the requirements for roadway excavation, which is of important guiding significance to the roadway excavation in cliff debris layer.