苏门答腊8.5级地震引起的水温响应变化
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摘要
收集并分析了首都圈地区水温观测井对2007年9月12日印度尼西亚苏门答腊Ms8.5级大震有响应的4口井水温资料。在此次地震中,北京良乡井和塔院井出现了水温突降—缓升脉冲型同震响应现象,河北三马坊井出现了震后水温缓慢升高的现象,北京昌平井则表现为震后水温阶变下降的现象。针对不同的水温响应现象,总结了前人对其机理的研究成果。水温突降—缓升型的响应机理主要有气体逸出说、井内水体热弥散说和冷水下渗说3种,而观测井水温震后效应是由于地震波作用导致井—含水层系统内水流状态的变化所致。
The water temperature data of four wells,which responded to Sumatra earthquake occurred in Sep 10,2007,were collected and analyzed.In the earthquake,Temperature of Liangxiang and Tayuan wells in Beijing showed a drop-ascend impulse,and temperature of Sanmafang well showed a slowly increasing after the earthquake,while temperature of Changping well represented as step-drop.There are three mechanisms for temperature sudden drop to slow raise,which are gas escape,heat dispersion and cold water seep.But the postseismic effect was caused by seismic wave.
The water temperature data of four wells,which responded to Sumatra earthquake occurred in Sep 10,2007,were collected and analyzed.In the earthquake,Temperature of Liangxiang and Tayuan wells in Beijing showed a drop-ascend impulse,and temperature of Sanmafang well showed a slowly increasing after the earthquake,while temperature of Changping well represented as step-drop.There are three mechanisms for temperature sudden drop to slow raise,which are gas escape,heat dispersion and cold water seep.But the postseismic effect was caused by seismic wave.
引文
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[8]杨竹转,邓志辉,陶京玲,等.北京塔院井数字化观测水温的同震效应研究[J].地震学报,2007,29(2):203-213.
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[11]陈大庆,刘耀炜,杨选辉,等.远场大震的水位、水温同震响应及其机理研究[J].地震地质,2007,29(1):122-132.
[12]贾化周,张炜,董守玉,等.地震地下水手册[M].北京:地震出版社,1995,644-655.
[13]孙仁远,成国祥.人工振动对多孔介质中液体流动的影响[J].水动力学研究与进展,2004,19(4):552-557.
[14]E.A.Roeloffs.Persistent water level changes in a well near Parkfield California,due tolocal and distant earthquakes[J].J Geophys Res,1998,103(B1):869-889.
[15]E.E.Brodsky,E.A.Roeloffs,D.Woodcock,el al.A mechanismfor sustained groundwater pressure changesinduced by distant earthquakes[J].J Geophys Res,2003,108(B8),doi:10.1029/2002JB002321.
[2]付子忠.地热动态观测与地热前兆[G].地壳构造与地壳应力文集.1988,1:1-7.
[3]P.P.Iassonov,I.A.Beresnev.Amodel for enhanced fluid percolationin porous media by application of low-frequency elastic waves[J].J GeophysRes,2003,108(B3),doi:10.1029/2001JB000683.
[4]D.R.Montgomery,M.Manga.Streamflowand water well responses to earthquakes[J].Science,2003,300(27):2047-2049.
[5]Chi-yuen Wang,Chung-ho Wang,Michael Manga.Coseismic release of water from mountanins:Evidence fromthe 1999(Mw=7.5)Chi-Chi[J].Tai wan,earthquake.Geology,2004,32(9):769-772.
[6]鱼金子,车用太,刘五洲.井水温度微动态形成的水动力学机制研究[J].地震,1997,17(4):389-396.
[7]中国地震局监测预报司.2004年印度尼西亚苏门答腊8.7级大地震及其对中国大陆地区的影响[M].北京:地震出版社:2005,131-258.
[8]杨竹转,邓志辉,陶京玲,等.北京塔院井数字化观测水温的同震效应研究[J].地震学报,2007,29(2):203-213.
[9]石耀霖,曹建玲,马丽,等.唐山井水温的同震变化及其物理解释[J].地震学报,2007,29(5):265-273.
[10]张素欣,张子广,张跃刚,等.2004年12月26日印尼大地震河北省数字水位、地热记震能力分析[J].华北地震科学,2005,23(3):27-30.
[11]陈大庆,刘耀炜,杨选辉,等.远场大震的水位、水温同震响应及其机理研究[J].地震地质,2007,29(1):122-132.
[12]贾化周,张炜,董守玉,等.地震地下水手册[M].北京:地震出版社,1995,644-655.
[13]孙仁远,成国祥.人工振动对多孔介质中液体流动的影响[J].水动力学研究与进展,2004,19(4):552-557.
[14]E.A.Roeloffs.Persistent water level changes in a well near Parkfield California,due tolocal and distant earthquakes[J].J Geophys Res,1998,103(B1):869-889.
[15]E.E.Brodsky,E.A.Roeloffs,D.Woodcock,el al.A mechanismfor sustained groundwater pressure changesinduced by distant earthquakes[J].J Geophys Res,2003,108(B8),doi:10.1029/2002JB002321.
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