赤泥库大坝渗漏分析及灌浆处理技术  

Analysis on a Red Mud Reservoir Dam Leakage and Grouting Treatment Technology

作　　者：黄全海 赵尊亭 王利芳[1] 

机构地区：[1]河南省地质矿产勘查开发局第三地质勘查院,河南洛阳471023 [2]河南省岩土工程有限公司,河南洛阳471023

出　　处：《探矿工程（岩土钻掘工程）》2015年第11期66-69,79,共5页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：由于施工质量问题,洛阳一个赤泥库大坝在试运行中发生大面积渗漏及管涌。在对渗漏原因进行分析的基础上实施的在坝内坡增设土工膜、坝轴线上游增设帷幕灌浆防渗墙、坝体下游坡面增设排渗沟和排水棱体等抢险加固措施,有效地解决了坝体渗漏问题。在灌浆处理过程中,针对筑坝材料的复杂性和不均匀性,通过施工前的灌浆试验,取得了适合本场地条件的钻孔施工工艺参数及灌浆方式、灌浆压力、灌浆段确定、水灰比比级等施工技术参数,确保了灌浆处理的效果。Due to the construction quality problems, large area leakage and piping occurred in a red mud reservoir dam during the test run. On the basis of the analysis on the causes of the leakage, the leakage was effectively controlled by the emergency reinforcement measures of putting up additional geomembrane on inside dam slope, additional curtain grouting diaphragm wall for upstream of dam axis, additional drainage ditch and drainage prism for downstream dam slope. According to the complexity and unevenness of dam construction materials, the suitable drilling construction technologies and parameters, grouting methods, grouting pressure, grouting segments determination and water cement ratio were obtained according to the grouting test before construction, the grouting effect was ensured.

关 键 词：坝体渗漏 土工膜 排水棱体 帷幕灌浆 防渗墙 赤泥库大坝 

分 类 号：TV543[水利工程—水利水电工程]