| 广东芝麻洲大爆破的地质地貌条件与震害预测 |
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| 引用本文： | 刘尚仁,刘美南,陈国能,李强.广东芝麻洲大爆破的地质地貌条件与震害预测[J].中山大学学报(自然科学版),1993(2). |
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| 作者姓名： | 刘尚仁 刘美南 陈国能 李强 |
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| 作者单位： | 中山大学地理学系
(刘尚仁，刘美南)，中山大学地质学系
(陈国能)，中山大学地质学系(李强) |
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| 摘 要： | 地处莲花山深断裂带地段的芝麻洲,数万年来断块活动不明显.芝麻洲大爆破没有出现爆震烈度异常,证明该断裂系统的地应力积累距离临界状态尚远.与现代海面对应的大亚湾海蚀平台普遍宽20m 或更多,是在晚更新世以来形成的,显示构造较稳定.可以把中国爆破安全规程公式与爆破震害调查相结合,来定量预测爆震烈度.芝麻洲大爆破的震害预测方法和结果,经爆后核查基本正确.
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| 关 键 词： | 芝麻洲大爆破 海蚀平台 爆震烈度 |
Geologic Geomorphic Condition and Forecast for Large Blast Seismic Hazard at Zhima Isle in Guangdong |
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| Liu Shangren Chen Guoneng Li Qiang Liu Meinan.Geologic Geomorphic Condition and Forecast for Large Blast Seismic Hazard at Zhima Isle in Guangdong[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,1993(2). |
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| Authors: | Liu Shangren Chen Guoneng Li Qiang Liu Meinan |
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| Institution: | Liu Shangren Chen Guoneng Li Qiang Liu Meinan Department of Geography,Zhongshan University |
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| Abstract: | In Zhima Isle section of Lianhua Mountain deep fault zone,the blockmotion has not been apparent since tens thousand years at least.Intensity abnor-mality of the blast seism appeared not for the Iarge blast at Zhima Isle,it is prov-ed that accumulation of Earth stress in the fault system is far apart the criticalstate.Width of marine-erosion platform corresponding to nowaday sea level isgenerally 20m or more in Daya Bay.The marine-erosion platforms formed mainly inLate Pleistocene Epoch,showing the sea level near these days existed for a longtime totaled in Late Pleistocene Epoch.To combine formula on rules of blastsafety China with investigation for the blast seismic hazard,calculated quantitati-vely the blast seismic intensity is possible.It is basically right that method andconclusion for forecasting the large blast seismic hazard at Zhima Isle are checkedafter the blast. |
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| Keywords: | iarge blast at Zhima Isle marine-erosion platform blast seismic intensity |
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