附加质量法在面板堆石坝填筑施工中的技术应用

Application of additional mass method in filling construction of concrete face rock-fill dam

附加质量法是近年来新兴的一种堆石体干密度原位测定方法,采用采集仪、质量块、激振锤、拾震器等检测设备替代原方案坑测法对面板堆石坝堆石料进行试验检测,具有快速、准确、实时和无损等特点。本文将附加质量法与传统坑测法优缺点对比,以河南天池抽水蓄能电站项目为依托,有机结合了附加质量法和坑测法两种试验方法优缺点,进行相互补充,制定本项目附加质量法应用流程,探索附加质量法技术应用,并对成果进行总结,为该项技术的应用积累实践经验。

Additional mass method is a newly emerged in situ measurement of dry density of rock-fill,which employs detective equipments such as acquisition instrument,mass block,vibratory hammer and vibration pickup to replace original soil pit method in conducting experiments on rock-fill materials for concrete face rock-fill dam.It is efficient,accurate,lossless and can be carried in real time.This paper,by comparing the advantages and disadvantages of additional mass method with traditional soil pit method,and focusing on Henan Tianchi pumped storage power station project,organically combined the two methods through their mutual complementation.The paper also accumulates practical experience for the application of the technology by developing the application steps of additional mass method in the project and by further exploring the application of additional mass method before drawing a conclusion.