Abstract The methods of small excavation in the middle at YYK393+581-YYK393+621 and enlargement at YYK393+581-YYK393+621 with a surrounding rock of class III are presented after analyzing the general survey, topography, construction difficulties, and numerical study of the Dapingshan Tunnel. In addition, the relevant key points of blasting technique and parameters are studied. Finally, some suggestions concerning construction safety are discussed.
Keywords ：
Tunnel with small clear distance Construction method Blasting technique
Abstract ：
The methods of small excavation in the middle at YYK393+581-YYK393+621 and enlargement at YYK393+581-YYK393+621 with a surrounding rock of class III are presented after analyzing the general survey, topography, construction difficulties, and numerical study of the Dapingshan Tunnel. In addition, the relevant key points of blasting technique and parameters are studied. Finally, some suggestions concerning construction safety are discussed.
Keywords ：
Tunnel with small clear distance Construction method Blasting technique
published: 2011-05-06
[1]
LIU Haibo.Application of the New Techniques of Energy-collecting Hydraulic Smooth
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[2]
WANG Bo-1, GUO Xin-Xin-1, HE Chuan-1, WU De-Xing-2.
[3]
Tuo Yongfei, Guo Xiaohong.General Design and Key Technologies of the Nanjing Weisan Road River-Crossing Tunnel Project [J]. MODERN TUNNELLING TECHNOLOGY, 2015,52(4): 1-6
[4]
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[5]
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[6]
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[7]
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[8]
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[9]
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[10]
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[11]
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[12]
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[13]
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[14]
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[15]
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2011, Vol. 48 