【摘要】 在金沙江水网的6口观测井进行了温度及其梯度的精细测量。测量结果表明:太阳辐射热的影响深度为50～125m;不同井的平均水温梯度不等,最小者仅0.11℃/hm,最大者可达2.81℃/hm,一般为1～2℃/hm;同一口井的不同深度段上温度梯度变化较大,地层岩性及其完整性,尤其是高角度的断层破碎带,对各井受太阳辐射热的影响深度与温度梯度的影响是主要的;水温微动态的特征如同震效应、潮汐效应与震前异常特征等,在相当程度上可能取决于水温传感器放置的深度段的温度梯度特征。更多还原

【Abstract】 The temperature and its gradient is measured carefully in 6 wells of Jinshajiang groundwater observation network.The result shows that the influence depth of sun-radiation heat is 50～125m.The average water temperature gradient is different in deferent wells,the minimum value is 0.11℃/hm,the maximum is 2.81℃/hm,and the general is 1～2℃/hm.The temperature gradient diversity in deferent depth sections in one well is very obvious,with values being in decimal fraction of ℃/hm,and the larger ones being 4～5℃/hm.Lithology of stratum and completeness of rockmass,particularly the high-angle fault crush zone,play a major role in affecting the influence depth of sun-radiation heat and temperature gradient of each well.The micro-behavior characteristics of water temperature in well,e.g.co-seismic effect,tide effect and anomalies before an earthquake etc,depend largely on the temperature gradient of the depth section where the temperature sensor is fixed.更多还原