溪洛渡水电站坝址岩层渗透性的温度场效应研究  

GEOTHERMAL FIELD EFFECT OF ROCK FERMEABILITY IN THE DAM SITE OF XILUODU HYDROELECTRIC STATION

作　　者：韩庆之[1] 杨红刚[1] 万军伟[1] 胡耀飞[2] 

机构地区：[1]中国地质大学工程学院,湖北武汉430074 [2]国家电力公司成都勘测设计研究院,四川成都610072

出　　处：《地质科技情报》2002年第1期19-21,共3页Geological Science and Technology Information

基　　金：国家电力公司成都勘测设计研究院科研项目 :"金沙江溪洛渡水电站坝区水文地质条件及其工程影响研究"

摘　　要：对溪洛渡水电站坝址温度场 330 m和 36 0 m高程平切温度等值线图中高温区展布形态和渗流场 36 0 m高程至下伏灰岩顶板平均吕荣 ( Lu)值等值线图中高值区展布形态进行了对比研究 ,认为二者在分布形态、延展方向及高温 -高值点位置都极其相近 ,其原因是由该区特定的地热水文地质条件决定的 ;并认为在具有如溪洛渡坝址这样类似地热水文地质条件的地区 ,可以通过对地热温度场的研究 ,从另一侧面来论证同一区内岩层渗透性分布特征 ;利用温度场效应亦可对渗流场参数进行验证研究 ,以用于水利水电工程设计。This paper has analysed the distribution pattern of the high temperature field in the maps of geoisotherm curves at 330 m and 360 m in the geothermal field in dam site of Xiluodu Hydroelectric Station and the distribution pattern of the high value field in the map of equal-value curves of average Lugeon from 360 m altitude to the underlying limestone roof in the groundwater flow field. The studies indicate that the maps of geoisotherm curves are exactly similar to that of the average Lugeon value in distribution shape, extending direction and high temperature and high value location, which could have been determined by the centain geothermal hydro geologic condition. The successive study points out that in the areas with the same geothermal hydrogeologic conditions as those in Xiluodu the study of geothermal hydrogeologic condition may help verify the distribution pattern of the rock formation and moreover, geothermal field effect can be used to testify the parameters of underground flow field.

关 键 词：温度场 渗流场 分布形态 溪洛渡水电站 坝址 岩层 渗透性 

分 类 号：TV73[水利工程—水利水电工程] P641.2[天文地球—地质矿产勘探]