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GEO Report No. 131
Report No. : GEO Report No. 131

Report Title : Investigation of Some Selected Landslides in 2000 (Volume 3) (2002), 161 p.

Author : Fugro Maunsell Scott Wilson Joint Venture

Abstract

This GEO Report consists of three Landslide Study Reports on the investigation of selected slope failure occurred in 2000. The investigations were carried out by Fugro Maunsell Scott Wilson Joint Venture (FMSW) for the Geotechnical Engineering Office as part of the 2000 and 2001 Landslide Investigation Consultancy.

Section 1 of the report presents the findings of a detailed study of a landslide (GEO Incident No. HK2000/08/006) which occurred on 24 August 2000 involving unregistered fill on the hillside adjacent to No. 2B Bowen Road on Hong Kong Island. Debris from the landslide, with an estimated volume of 120 m3, entered the adjacent nullah and was transported downstream for a long distance beyond the landslide site (up to about 250 m on plan) to reach Hong Kong Park below Kennedy Road.

Section 2 of the report presents the findings of a detailed study of the seepage incident involving strong outflow of muddy water from weepholes of feature No. 11SW-A/R625 below Oaklands Avenue on 18 June 2000. At the time of the incident, ground subsidence was observed on the footpath alongside Robinson Road, just behind the crest of slope No. 11SW-A/FR12 above Oaklands Avenue.

Section 3 of the report presents the findings of a detailed study of a cluster of landslides (GEO Incident No. HK2000/08/012) that occurred on 24 August 2000 on the hillside below Tai Hang Road, about 20 m to the north-northwest of slope No. 11SE-C/C584. About 360 m3 of landslide debris were deposited behind Nos. 57 and 59 Blue Pool Road. No facilities were closed as a result of the incident. There were no reported casualties.


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