应用地震观测技术监测仓库附近人员活动的可行性研究
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摘要
本文应用数字化地震观测技术对中国人民解放军某部队仓库进行了全天候人员活动监测可行性的评估研究,给出了仓库场地微振动背景参数和人员活动的最大振动强度距离衰减关系.结果表明,短周期水平向地震计更适合人员活动的监测,直接采用原始观测数据和现有观测设备可控监测半径约为20 m.人员活动特征有显著的振动模式,如果针对场地微振动特征和人员活动特征进行滤波和模态分析,有可能进一步提高监测的可控半径.
The feasibility of All-weather monitoring on people's movements near a depot with seismic observing technique is studied on the basis of actual observing data in this paper.The characteristics of ground tremor and the relationship between maximum intensity of ground tremor and people's movements are analyzed.Monitoring results show that the horizontal short-period seismometer is fit for monitoring people's movements,and the controllable distance around a seismometer is 20m by recorded raw data.Special features of people's movements can be clearly reflected on the recorded vibrating diagram.This offers a possibility to increase the controllable distance of the monitoring by means of wave filtering and mode analysis.
The feasibility of All-weather monitoring on people's movements near a depot with seismic observing technique is studied on the basis of actual observing data in this paper.The characteristics of ground tremor and the relationship between maximum intensity of ground tremor and people's movements are analyzed.Monitoring results show that the horizontal short-period seismometer is fit for monitoring people's movements,and the controllable distance around a seismometer is 20m by recorded raw data.Special features of people's movements can be clearly reflected on the recorded vibrating diagram.This offers a possibility to increase the controllable distance of the monitoring by means of wave filtering and mode analysis.
引文
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[2]刘代志,黄世奇,钱昌松.发展军事地球物理,为国家安全作贡献——国家安全与军事地球物理专业委员会成立大会暨首届学术研讨会综述[J].地球物理学进展,2006,21(1):248~250.
[3]蒋通.脉动的研究及其在地震工程中的应用[J].世界地震工程,1997,13(4):41~46.
[4]周加新,王海云,慈宁宁,等.迎接地震观测技术的新变革[J].地震学刊,2000,20(4):16~25.
[5]周加新.地震仪的发展[J].城市与减灾,2000,(1):25~27.
[6]高原.宽频带地震学与中强地震破裂过程的研究[J].地球物理学进展,1996,11(4):34~46.
[7]Harvey D,Choy G L.Broadband Disconsolation of GDSN data[J].Geophys.J.R.Astr.Soc.,1982,69:659~668.
[8]Silver P G,Chan W W.Observations of body wave multipath-ing from broadband seismograms:evidence for lower mantleslab penetration beneath the sea of Okhotsk[J].J.Geophys.Res.,1986,91(B14):13787~13802.
[9]郭铁拴,庄灿涛,田华.场地微振动观测中的换能器选择和时间选择[J].工程物探,1998,(3):8~13.
[10]曹忠权,王好根,郭铁拴.场地微振动及其强度特征分析[J].土工基础,2003,17(2):53~55.
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