It is commonly accepted the development and use of underground space in rock caverns is one of the major solutions in order to meet the increasing demand for space in Singapore. Due to the relatively flat terrain in Singapore, vertical shaft shall be one of the major alternatives for accessing deep underground. The shafts will be used in construction, installation and operation phases and will cater for different modes of transportation. Experiences have demonstrated shafts are often the critical structure for cost-effective construction of the rock caverns and safe operation of the underground facilities.


 The objective of the workshop is to present the cutting edge technology in design and construction of the shaft by the world top experts. The preliminary outcome of our research project in this field is also presented. The experiences gained in local projects are also addressed.