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东门河水库位于黔西北的仁怀县城郊,系位于下游的盐津河水电站调节水库。库容1250万立方米,设计坝高63.5米,当坝高建至16米时,库内发生严重渗漏,水位一直不能抬升,成一停工待处的岩溶病害水库。库区属中低山地形,地势东北高,西南低,切割剧烈、山脉、河流与主体地质构造均作北北东向展布,河流基流量0.2立方米/秒,两岸有大量的溶洞、漏斗、洼地,呈裸露型层状岩溶地貌景观(图1)。
Dongmenhe Reservoir is located in the outskirts of Renhuai County in the northwest of Guizhou Province and is located in the regulating reservoir of Yanjinhe Hydropower Station in the lower reaches. With a storage capacity of 12.5 million cubic meters and a design height of 63.5 meters, when the dam height is up to 16 meters, there is a serious leakage in the reservoir and the water level can not be lifted until it becomes a karst diseased reservoir for stopping work. The reservoir area belongs to the middle and low mountain terrain. The terrain is high in the northeast, low in the southwest, and the cutting is intense. The mountains, rivers and the main geological structure are both north-north eastward. The basal flow of the river is 0.2 cubic meters per second. There are a large number of karst caves , Depression, was exposed layered karst landscape (Figure 1).