| Effect Blasting Excavation of Yujiapeng Tunnel on Stability of Nearby Giant Dangerous Rock Masses (DRM) |
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| 作者姓名： | Yu Hongming Hu Yanxin Engineering Faculty China University of Geosciences Wuhan |
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| 作者单位： | Yu Hongming Hu Yanxin Engineering Faculty，China University of Geosciences，Wuhan 430074 |
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| 基金项目： | ThepaperissupportedbytheReconnaissanceofFeasibilityaboutYujia pengTunnel，ZiguiCounty，HubeiProvince. |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅＹｕｊｉａｐｅｎｇｔｕｎｎｅｌ,ａｎｉｍｐｏｒｔａｎｔｐａｒｔｏｆＪｕｇｕｉｒｏａｄｉｎＺｉｇｕｉｏｆｔｈｅＴｈｒｅｅＧｏｒｇｅｓ,ｌｏｃａｔｅｄｏｎｔｈｅｓｏｕｔｈｅｒｎｂｅａｃｈｏｆｔｈｅＹａｎｇｔｚｅＲｉｖｅｒ,ｉｓｖｅｒｙｉｍｐｏｒｔａｎｔｔｏｔｈｅＴｈｒｅｅＧｏｒｇｅｓｐｒｏｊｅｃｔ,ｔｏｔｈｅｅｃｏｎｏｍｉｃｄｅｖｅｌｏｐｍｅｎｔｏｆｔｈｉｓａｒｅａａｎｄｆｉｎａｌｌｙｔｏｔｈｅｍｉｇｒａｔｉｏｎｐｒｏｊｅｃｔ.Ｔｈｉｓｔｕｎｎｅｌ,ａｂｏｕｔ 2ｋｍｌｏｎｇ ,…
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Effect Blasting Excavation of Yujiapeng Tunnel on Stability of Nearby Giant Dangerous Rock Masses (DRM) |
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| Yu Hongming Hu Yanxin Engineering Faculty,China University of Geosciences,Wuhan .Effect Blasting Excavation of Yujiapeng Tunnel on Stability of Nearby Giant Dangerous Rock Masses (DRM)[J].Journal of China University of Geosciences,2001,12(2). |
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| Authors: | Yu Hongming Hu Yanxin |
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| Abstract: | On the basis of the interpretation of engineering geology of the tunnel and of its adjacent dangerous rock masses (DRM), this paper presents the energy and vibration parameters of the explosion that propagates in different blasting modes according to the experimental formulas now usually employed. Then the stability checking computation of T 8-T 12 area, the most dangerous area of DRM, is conducted under the limited blasting condition and with the limited equilibrium method. The result shows that the effect on the stability is only 5.5 % and that this area also contains certain safety reserves. |
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| Keywords: | blast energy propagation vibration parameters safety reserves |
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