大藤峡南木江副坝混凝土建筑物有盖重固结灌浆试验  

Experimental study on consolidation grouting with cover weight of concrete building on Nanmujiang subsidiary dam in Datengxia Gorge

作　　者：陈佳培 任磊 Chen Jiapei;Ren Lei(Nanjing Water Conservancy Construction Engineering Co.,Ltd.,Nanjing 210000,Jiangsu;China Gezhouba Group Co.,Ltd.,Wuhan 430000,Hubei)

机构地区：[1]南京市水利建筑工程有限公司,江苏南京210000 [2]中国葛洲坝集团股份有限公司,湖北武汉430000

出　　处：《吉林水利》2021年第6期30-34,共5页Jilin Water Resources

摘　　要：广西大藤峡南木江副坝工程地质较为复杂,存在破碎带。为保证上部混凝土建筑物稳定及安全,设计提出了河床坝段岩体盖重固结灌浆方案。在坝下0+005.00—坝下0+009.00开展生产性试验,灌浆试验后采用压水试验及抽芯检测。结果表明,该有盖重固结灌浆方案对南木江副坝工程复杂地质条件的处理具有可行性,可用于下一步有盖重固结灌浆施工。The engineering geology of Nanmujinag subsidiary dam in Datengxia gorge is complex and there is fracture zones.In order to ensure the stability and safety of the upper concrete buildings,the rock mass covering consolidation grouting scheme of the riverbed dam section is put forward.The productive test was carried out at at between 0+005.00 and 0+009.00 under the dam.Water pressure test and core pulling test were employed after the grouting test.The results show that the scheme of consolidation grouting with cover weight is feasible adapting to the geological conditions of Nanmujiang subsidiary dam project and could be used in the next construction of grouting with cover weight.

关 键 词：盖重 固结灌浆 可灌性 透水率 

分 类 号：TV543.5[水利工程—水利水电工程]