Fire safety strategies for existing rock caverns in Hong Kong

T. K. Tam, H. L. Tsang, Che Heng Gigi Lui, Nai Kong Fong, Wan Ki Chow

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)


Rock cavern development is not a brand new concept in Hong Kong. In accordance with the recommendations of various studies conducted in Hong Kong, the use of rock caverns with high occupant loads is not impossible. All the existing cavern projects in Hong Kong, however, were designed to have low occupant loads and used as public utilities such as sewage treatment works, explosives depot, refuse transfer station, salt water service reservoirs and explosives magazine complex. In order to determine the possibility of utilizing caverns, from fire safety perspective, for potential uses other than public utilities with low occupant loads, this paper aims to critically review the fire safety strategies of the existing rock caverns in Hong Kong. The results of radon level measured in the largest rock cavern in Hong Kong are also demonstrated to determine whether cavern in Hong Kong is suitable for public use in terms of indoor radon concentration according to the relevant standard suggested by the World Health Organization. Further, recommendations are offered to facilitate possible utilization of rock caverns with high occupant loads in Hong Kong such as introducing new fire safety strategies and updating fire safety provisions for the existing rock caverns.
Original languageEnglish
Pages (from-to)78-87
Number of pages10
JournalTunnelling and Underground Space Technology
Publication statusPublished - 1 Jan 2014


  • Cavern
  • Fire safety
  • Overview

ASJC Scopus subject areas

  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


Dive into the research topics of 'Fire safety strategies for existing rock caverns in Hong Kong'. Together they form a unique fingerprint.

Cite this