摘要
岩溶渗漏是水利水电工程中较为复杂的技术难题之一。而岩溶渗漏又主要与岩溶地下水位及溶洞分布等有关。但是,仅用直观的、经验性的定性描述,已不能有效的解决上述问题。如何从大量的观测资料中分析问题,找出规律,从而更深刻地阐明问题的本质。找出规律,趋势面分析提供了一条分析方法的途径。本文以大化电站和隔河岩坝址为实例,探讨了多项式趋势面方程的具体应用,论证了大化电站亮山地段地下河的分布及地下分水岭的存在,解释了未产生岩溶渗漏的原因。对隔河岩坝址河床岩溶发育的差异性作了趋势分析并圈出了异常点。
Karst leakage is one of the complicated technical problems in water conservancy and hydroelectric projects.It is mainly related to groundwater table in karstified formations and distribution of karat caves. The problem cannot be solved effectively only by qualitative analysis depending on visual observation and empirical analysis. The trend surface analysis has led to an approach to interprete the essence of the problem on the basis of large amounts of observation data available. The Dahua hydropower station and the Geheyan dam site is taken as an example in the discussion on application of multinomial trend surface equation. The existence of a groundwater divide is thus proved and the cause of no karst leakage is elucidated against the geological setting with subterranean streams distributed in Liangshan segment in the Dahua hydropower station area. Trend surface analysis is also done for the different karst development on the river bed at the Gehe Rock dam site and relevant anomalies are located.
出处
《中国岩溶》
CAS
CSCD
北大核心
1990年第3期241-249,共9页
Carsologica Sinica
