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