Report No. : GEO Report No. 113
Report Title : Investigation of Some Selected Landslides in 1998 (Volume 6) (2001), 140 p.
Author : Fugro Scott Wilson Joint Venture
Abstract
This GEO Report consists of two Landslide Study Reports on the investigation of selected slope failures that occurred in 1998. The investigations were carried out by Fugro Scott Wilson Joint Venture (FSW) for the Geotechnical Engineering Office as part of the 1998 Landslide Investigation Consultancy.
Section 1 of the report presents the findings of a detailed study of the landslide (GEO Incident No. K 98/6/5) that occurred on 9 June 1998, at Slope No. 7SE-C/C42 below the Police Post at Tate's Ridge along Fei Ngo Shan Road, Kowloon. Debris from the landslide travelled downslope for a horizontal distance of about 170 m from the crown of the landslide, completely blocking Fei Ngo Shan Road. There were no casualties as a result of the landslide.
Section 2 of the report presents the findings of a detailed study of a landslide that occurred during heavy rain within an active construction site on 9 June 1998 at a newly-formed cut slope above Tai Po Road, near Chak On Estate. The total volume of the landslide is of the order of 1,400 m3. The slope moved approximately 1 m before coming to rest whilst a large amount of material was eroded from the margins of the failed area and onto the slip road under construction below. Tai Po Road, immediately adjacent to the construction works, was closed to traffic as a precaution until temporary stabilisation works had been implemented. No one was injured in the landslide.