岩石裂隙注浆技术在吉隆坡岩溶地区深基坑施工中的应用

Application of Rock Fissure Grouting in a Deep Foundation Pit in the Kuala Lumpur Karst Region

吉隆坡大马城北站基坑工程地下基岩岩溶、裂隙、溶洞极为发育,在施工中,采用帷幕注浆、桩脚加固注浆以及压密注浆对基坑进行防水加固,并采用吕荣测试和抽水试验对注浆效果进行评价,结果表明,大马城北站基坑工程注浆封水效果显著,达到了基本防水要求。

For the bed rock of the foundation pit of the Bandar Malaysia North Station（BMNS） in Kuala Lumpur,the karst, fissure and cave are very developed, and curtain grouting, spud grouting and compaction grouting wereconducted to achieve waterproofing and reinforcement. A Lugeon test and pumping test were carried out to test thegrouting performance. The results show that the waterproofing effect of the Bandar Malaysia North Station（BMNS） issignificant, meeting the basic requirements for waterproofing.