浅析大吨位、超长孔深锚索钻孔孔斜控制

Brief Analysis on Hole Deviation Control of Large-tonnage and Super-long Hole Depth Anchorage Cable Hole

摘要:

在大吨位、超长孔深锚索支护施工中，钻孔孔斜控制对预应力锚索锚固效果有着较大的影响，在分析了造孔孔斜成因的基础上提出了大孔深锚索钻孔孔斜的预防和控制处理措施。

关键词:大吨位、超长孔深锚索;孔斜控制; 孔斜成因;孔斜预防;孔斜处理

Abstract:

In the anchor support construction with large-tonnage and super-long hole depth, the borehole deviation control greatly influences the effect of pre-stressed cable anchorage. Based on the analysis on the causes of borehole inclination, the paper put forward the prevention and control measures for large depth anchorage cable hole.

Key words:large tonnage; super-long hole depth anchor; hole control; hole deviation cause; hole deviation prevention; hole deviation treatment