摘要
岩溶发育,不仅受控于碳酸盐岩性、构造和地下水等条件,而且还受控于地温场中不同温度的地下水相混合后的温度混合溶蚀作用。在水电站和水库建设地区,常见的是冷水地温场,亦见有热水地温场。利用地温场来探索和研究岩溶的发育和岩溶渗漏问题,此种研究方法,笔者称之为“地温场”分析法。文中对不同的钻孔水温曲线,按其形成机理,划分为五种类型,即直线型、抛物线型、对数曲线型、正异常型和负异常型。文中还列举了猫跳河、江垭、彭水及法国特里约等几个工程和地区的地温场和地温梯度的研究成果,在此研究工作的基础上,利用地温梯度分析法,对二个电站坝区的岩溶发育和岩溶渗漏以及防渗处理问题进行了实例分析。实践证明,对地温场的研究,在岩溶渗漏分析中具有一定的现实意义。
Karst development is controlled not only by carbonate lithology, structure and ground water but also by temperature mixture corrosion from water at different temperatures in geothermal field.
In the power station and reservoir construction sites, there is frequently cold water field but occasionally some hot water field as well. To research karst development and karst leakage by using geothermal field is called 'ground temperature analysis method' .
In this paper, the borehole water temperature curves are divided into five types, namely, straight line, parabola, logarithmic curve, positive abnormal and negative abnormal. It also lists the research results from the ground temperature field and gradient, of Maotiaohe, Jiangya and Pengshui in China and Terrio in France. On the basis of the research, the author gives two real examples of the ground temperature gradient analysis. It has been proved practical to study the karstic leakage by analysing the ground temperature field.
出处
《中国岩溶》
CAS
CSCD
北大核心
1989年第2期143-150,共8页
Carsologica Sinica
