Peter Ayres, Hong Kong

Peter graduated from Camborne School of Mines, The University of Exeter, having attained a First Class Honours MEng in Mining Engineering. During his studies he spent one year on the European Mining Course, studying in the UK, Finland, Holland and Germany. He is currently a Professional Graduate Member of IOM3, Member of BTS and Associate of Camborne School of Mines.
Following his graduation in 2008, he worked for Arup in New York as a Tunnel Design Engineer before joining Leighton Contractors (Asia) Ltd. (LCAL) in Hong Kong. He is currently working on the Contract 822 of the prestigious Guangzhou-Shenzhen-Hong Kong Express Rail Link (XRL) project as a Blasting Engineer.
Other projects he has been involved in previously include the No.7 Line Subway Extension and Second Avenue Subway in New York, Lake Mead Intake in Las Vegas and XLR Contract 821 in Hong Kong. He also presented at the North American Tunnelling Conference 2011 on 'Analysis and Control of Blast Vibrations: Excavation of the 34th Street Station Cavern, No.7 Line Subway Extension' which was later published in the proceedings.

 

Having a blast in Hong Kong - Drill-and-blast excavation on XLR 822

Drill-and-blast excavation on this contract is a 24/7 operation based over three different sites, consisting of 7.6km of twin track tunnels that from the Tse Uk Tsuen to Shek Yam section of the 26km Guangzhou-Shenzhen-Hong Kong Express Rail Link (XLR). This HKD $3.24 billion contract,awarded by the MTR Corporation, covers excavation below the Tai Mo Shan mountain at depths of up to 960m, over 1.5km of ventilation and access adits, two ventilation buildings and a 90m deep ventilation shaft, with expected completion by 2015.
It currently represents the biggest drill-and-blast project in Hong Kong and the tunnels include multiple different profiles ranging from single-track tunnels to over 200m2 junction. The project requires detailed blast designs for every shot with over a thousand blasts expected. This lecture will cover the details of this project by drill-and-blast method. It will cover the bespoke designs and blasting used to excavate over 1 million cubic metres.

 

 

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