大藤峡库区盘龙铅锌矿防护区西侧帷幕灌浆试验研究  

Curtain Grouting Test on the Western Side of the Protective Zone of Panlong Lead-Zinc Mine in the Datengxia Reservoir Area

作　　者：付阿雄 冯远余 FU Axiong;FENG Yuanyu(Guangxi Datengxi Gorge Water Conservancy Development Co.,Ltd.,Nanning 530200,China)

机构地区：[1]广西大藤峡水利枢纽开发有限责任公司,广西南宁530200

出　　处：《中国水能及电气化》2025年第2期43-51,59,共10页China Water Power & Electrification

摘　　要：大藤峡水利枢纽工程蓄水后,库区上游河段水位上涨而形成的高压水头,致使库水通过基岩裂隙和溶洞渗漏到地下矿井,增大了盘龙铅锌矿区矿坑岩溶突涌水量。为进一步降低岩溶突涌水风险,减少大藤峡水库蓄水后矿坑总涌水量,拟在盘龙铅锌矿区西侧进行防渗帷幕试验。通过在帷幕上选取代表性基础地质条件南、北段进行灌浆试验,探究适合不同水文地质条件下最优的注浆材料、浆液配合比、孔距、排距等注浆工艺技术参数,为后续整体的帷幕灌浆施工优化设计、降低工程造价、保证工程质量等提供依据。After the impoundment of the Datengxia Water Conservancy Project,the increased water level in the upstream section of the reservoir will create a high-pressure water head,causing reservoir water to seep through bedrock fractures and karst caves into underground mine shafts.This will increase the sudden influx of karst water into the Panlong lead-zinc mine area.To further mitigate the risk of karst water inflows and reduce the total water inflow into the mine after the reservoir's impoundment,an impermeable curtain is planned for construction on the western side of the Panlong lead-zinc mine area.Curtain grouting is an effective method to reduce the permeability of rock strata in mine pits.Representative geological conditions in the southern and northern sections of the western curtain axis were selected for grouting tests.The study aims to explore optimal grouting materials,grout mix ratios,hole spacing,row spacing,and other grouting process parameters suitable for different hydrogeological conditions.The findings will provide a basis for optimizing the design of subsequent comprehensive curtain grouting construction,reducing project costs,and ensuring engineering quality.

关 键 词：大藤峡库区 盘龙铅锌矿防护 防渗帷幕 灌浆试验 

分 类 号：TV543.15[水利工程—水利水电工程]