【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。更多还原

【Abstract】 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.更多还原