Application of Ultra-deep Pre-stressed Anchoring Cable in Landslide Control Project in the Three Gorges Reservoir

Abstract:

Comprehensive treatment with anchor lattice, retaining wall and anti-slide pile was adopted for landslide control project in Three Gorges Reservoir. In order to increase the slide stability, it is important to construct the ultra-deep pre-stressed anchoring cable at top end of the anti-slide pile and increase the normal stress of slip band. The paper introduced the construction of ultra-deep pre-stressed anchoring cable, borehole for anchor cable, grouting and tension construction.

Key words:slide; ultra-deep pre-stressed anchoring cable; borehole completion; grouting; Three Gorges Reservoir