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GEO Report No. 44
Report No. : GEO Report No. 44

Report Title : General Report on Landslips on 5 November 1993 at Man-made Features in Lantau (1995), 78 p. plus 1 drg.

Author : H.N. Wong & K.K.S. Ho

Abstract

This report summarises the findings of the study of 264 man-made features on Lantau Island which failed in the severe rainstorm on 5 November 1993. The large number of landslips provided an opportunity for a systematic study of the characteristics of landslips at man-made slopes. In addition, it was possible to assess the effectiveness of the design and construction of surface protection and drainage measures for slopes typical of secondary roads and catchwater. Based on the information collected during the inspection, the likely failure mechanisms, effectiveness of routine maintenance and possible use of prescriptive measures in preventing the landslips were evaluated.


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