孔口封闭灌浆法在尾矿坝帷幕灌浆的应用

Application of Orifice-closed Grouting Method for Curtain Grouting of a Tailings Dam

乌山二期尾矿坝帷幕灌浆工程,采用了孔口封闭孔底循环自上而下分段灌浆的方法进行施工,文中重点介绍了该工程试验段帷幕灌浆的施工工艺、检测手段以及通过现场压水试验检测帷幕灌浆所达到的效果;该帷幕灌浆方法施工简单,可操作性强,且防渗水效果明显,保护了地下水资源。

The Orifice-closed segmented top-to-bottom grouting method was used to construct the curtain grouting project for the second phase Wushan Tailing Dam Project.The paper briefly introduces the construction technique of the project＇s curtain grouting in a test dam section, the monitoring means and grouting results monitored by water pressure test in site.This curtain grouting method has many features such as simple construction method, strong operation ability,good seepage control effect etc.It can protect the groundwater resources.