Report No. : -

Report Title : Report on the 22 May 2013 Distress at a Reinforced Fill Wall at a Construction Site above Shun On Road, Sau Mau Ping, 86 p.

Author : Fugro Scott Wilson Joint Venture

Abstract

In the early morning of 22 May 2013, a distress involving dislodgement of facing panels and loss of soil occurred at a reinforced fill wall (Wall R22) at the construction site for the Development at Anderson Road (DAR) project, above Shun On Road, Sau Mau Ping. The wall was under construction as part of the DAR project. No casualty was reported as a result of the incident.

The Geotechnical Engineering Office of the Civil Engineering and Development Department conducted an investigation to establish the probable causes and mechanism of the incident.

Based on the findings, the incident was a piping-related distress at some tier openings. It resulted from the inability of the site drainage system to cope with the surface runoff arising from the intense rainfall in the early morning of 22 May 2013.

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