土工基础

土工基础 ›› 2020, Vol. 34 ›› Issue (1): 1-03.

• •    下一篇

不可回收锚索拆除方法和技术控制

耿协威   

  1. （广东省地质局第一地质大队，广东珠海 519000）
  • 收稿日期:2018-12-21 修回日期:2019-05-07 出版日期:2020-04-20 发布日期:2020-04-20
  • 作者简介:耿协威(1987-)，男，工程师，硕士，研究方向为岩土工程及地质灾害治理。

Technical Aspects of Non-Recyclable Ground Anchor Cable Removal

GENG Xiewei#br#   

  1. (Zhuhai Engineering Investigation Institute, Zhuhai 519000)
  • Received:2018-12-21 Revised:2019-05-07 Online:2020-04-20 Published:2020-04-20

摘要： 不可回收锚索即普通预应力锚索，受拉件主要由钢绞线制作。不可回收锚索施工后，将对其周边地下环境造成一定的影响，主要包括：对周边地块桩基础施工的影响、对周边地块基坑施工的影响、对周围边市政施工的影响、对盾构机施工的影响、对城市长远规划的影响。不可回收锚索的拆除方法和技术，存在一定的难度，可借鉴的成功案例较少。结合工程实例，从实际拆除的情况分析，论证不可回收锚索拆除方法和技术控制。


关键词: 锚索, 拆除, 不可回收, 钻机减摩, 钻进取索法

Abstract: Non-retrievable ground anchor cables are conventional cables, and the tension parts are mainly made of steel strands. After the construction of nonrecyclable anchor cables, it will have some negative impacts on the surrounding underground environments. These impacts mainly include: (1) the impact on the construction of the pile foundation in adjacent blocks; (2) the impact on the deep excavationactivities in adjacent areas; (3) the impact on the surrounding municipal construction; (4) the impact on the excavation construction of subway shielded boring machine; (5) the impact on the longterm planning of the city. There are some difficulties in the removal methods and techniques of nonrecyclable anchor cables, and few successful cases were reported. This paper demonstrates the method and the technical aspects of the nonrecyclable anchor cable demolition based on the analysis of an actual demolition project.

Key words: Anchor Cables, Demolition, Nonrecyclable, Friction Reduction of Drilling Rig, Drilling Methods

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