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2003•Journal of Zhejiang Water Conservancy and Hydropower CollegeRequires access

On Controlled Blasting Technique in the Second Gradient Dam of Huaguangtan Hydropower Station

Mei Han

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Abstract

The first phase concrete cofferdams and the left bank dam foundation excavation of the second gradient dam of the Huaguangtan Hydropower Station is very close to the right bank dam block No.3 by 15m to 2.0 m,where the concrete has been poured few days ago.The essy illustrates the feasible construction procedure and blasting parameters according to the testing result on spot,which is on the reference of the other similar construction experience in China.The success of the controlled blasting technique used in this project can make some use for reference to other similar projects or conditions.

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What this paper is about

The first phase concrete cofferdams and the left bank dam foundation excavation of the second gradient dam of the Huaguangtan Hydropower Station is very close to the right bank dam block No.3 by 15m to 2.0 m,where the concrete has been poured few days ago.The essy illustrates the feasible construction procedure and blasting parameters according to the testing result on spot,which is on the reference of the other similar construction experience in China.The success of the controlled blasting technique used in this project can make some use for reference to other similar projects or conditions.

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Available abstract

The first phase concrete cofferdams and the left bank dam foundation excavation of the second gradient dam of the Huaguangtan Hydropower Station is very close to the right bank dam block No.3 by 15m to 2.0 m,where the concrete has been poured few days ago.The essy illustrates the feasible construction procedure and blasting parameters according to the testing result on spot,which is on the reference of the other similar construction experience in China.The success of the controlled blasting technique used in this project can make some use for reference to other similar projects or conditions.

Key concepts: Cofferdam, Hydropower, Foundation (evidence), Rock blasting, Geotechnical engineering, Excavation, Engineering, Civil engineering

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