高压旋喷成孔+布袋扩体抗浮锚杆技术研究

Research on high pressure jet grouting pore-creating and bag expansion anti floating anchor technology

简述了高压旋喷成孔+布袋扩体抗浮锚杆的系统组成与工作原理,并结合工程实例,从施工准备、钻孔、高压注浆扩孔、安装锚杆、高压注浆等方面,阐述了其施工要点,经抗拔试验检测表明,该技术取得了良好的社会经济效益。

This paper discussed the system composition and working principle of high pressure jet grouting pore-creating and bag expansion anti floating anchor,combining with the engineering examples,from the construction preparation,drilling,high pressure jet grouting pore-expansion,bolt installation,high pressure grouting and other aspects,elaborated its construction key points,through the resistant extraction test showed that this technology had achieved good the social and economic benefits.