巴基斯坦卡洛特水电站河湾地块渗控监测分析

Analysis on seepage control monitoring of river cove area in Karot Hydropower Station in Pakistan

巴基斯坦卡洛特水电站坝址区为典型的河湾地貌,河湾地块山体单薄、宽度较窄,局部存在分布于砂岩中的规模相对较大裂隙,宏观上存在库水穿越天然河湾地块向下游发生渗漏的条件。通过在河湾地块关键部位布设渗流监测设施,获取河湾地块地下水位、岩体渗透性等水文地质条件,分析了现有帷幕布置方案下河湾地块的防渗性能,对河湾地块渗控方案可靠性进行了合理评价。该成果可为其他类似工程提供参考。

The dam site area of Karot Hydropower Station in Pakistan is a typical river cove landform.The mountain in the river cove area is thin and the width of the area is narrow.There distributed relatively large-scale fissures in sandstone locally.Macroscopically,there are conditions for reservoir water to seepage downstream through the natu⁃ral river cove area.By arranging seepage monitoring facilities in the key parts of this river cove area,the hydrogeo⁃logical conditions such as groundwater level and rock permeability of the river cove area are obtained.The seepage control performance of river cove area under the existing curtain grouting scheme is analyzed and the reliability of seepage control scheme is evaluated reasonably.The result can be as a reference for other similar projects.