苗尾水电站大坝基础帷幕灌浆特殊情况处理工艺

Treatment technology for special condition of foundation curtain grouting for dam of Miaowei Hydropower Station

通过对苗尾水电站大坝基础河床段水平廊道内帷幕灌浆两个试验区施工过程及成果进行分析和总结,探讨倾倒变形发育地质条件下帷幕灌浆涌水孔段及回浆变浓孔段特殊情况处理工艺的有效性和可行性,为相似地质条件下帷幕灌浆特殊情况处理工艺提供参考和借鉴。

Through the analysis and summarization made on the construction processes of two experimental zones for curtain grouting in the horizontal gallery of the river-bed section of the dam foundation for Miaowei Hydropower Station,the effectiveness and feasibility of the technology for treating the special conditions of the hole-section with water-gushing and the hole-section with densification of recycled slurry of the curtain grouting under the geological condition of the development of toppling deformation are discussed herein,so as to provide some references for the treatment technology for the special conditions of curtain grouting under the similar geological condition.