地下锚杆清除施工方法探讨

Discussion on Construction Method of Underground Anchor Removal

针对基坑支护施工过程中出现的周边已建建筑物的支护锚杆的清障要求,提出两种拟采用的清障施工方法即全套管全回转钻机清障和三轴深搅机清障,通过经济、技术、工期等多方面比较,最终确定采用三轴深搅机进行清障,并在后期施工实践中取得了较好的效果。

Aiming at the requirement of anchor rod clearance of surrounding built buildings during foundation pit support construction,two kinds of barrier clearance construction methods are proposed,i.e. full casing rotary drilling rig and three-axis deep mixer,through comparison of economy,technology and construction period,three-axis deep mixer is finally adopted to clear the barrier,which has achieved good results in the later construction practice.