深孔多锚索安装和注浆工艺的研制与应用

Discussion on Technology and Device of Multiple Anchor Installation in Deep Hole

针对目前采用深孔锚索注浆加固工艺技术的难点,就如何进行深孔多锚索安装与注浆开展了深入可行的研究与应用,提出了进退两宜、回转推进、风动冲孔、键球式锚索置入器等措施,有效地解决了超深易坍、掉块、缩径锚孔的锚索安装置入、孔底注浆等技术问题,对灾害环境加固治理,全面实施设计目的,起到了及其重要的作用。

Aimed at the present technical difficulty in multiple anchor installation in deep hole, study was made on the installation technology and the installation device, and composite anchor installation device with spline rod and spherical bit was developed. The technical problems were effectively resolved, such as anchor installation and grouting at the bottom in ultra-deep hole in collapsing, block-falling and hole diameter-shrinking formation. The paper detailed the rotary composite anchor installation device with spline rod and spherical bit about the structure, working principle and application effect.