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Application of The Technique of Controlled Blasting in Excavation of Pile Foundation

Ding Yaguang Qin Wensheng Luo Yungun Xiong Chuming Anhui University of Science and Technology (Huainan Anhui 232001)  
According with the special conditions in excavation of high building's pile foundation, controlled blasting technique was adopted in basement rock blasting. In the procedure, suitable blasting scheme had been made, the possibility of wall rock being destroyed and effects on near circumstance were accounted, and a good blasting effectiveness was achieved.
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