棘洪滩水库土石坝利用风化岩混合料做防渗体的设计和施工

Utilization of Mixed Weathering Rock as Material of Impervious Core in Jihongtan Earth-rockfill Dam

山东省引黄济青工程中的棘洪滩水库,是一大型平原水库,围坝防渗心墙采用风化岩混合料填筑,经现场取样试验,防渗体各项物理力学指标均达到或超过了设计要求。该工程用风化岩混合筑坝实践表明,不仅可以方便高度机械化施工,节省投资1430万元,而且给用当地材料筑坝增添了活力,提供了新的经验。

Jihongtan Reservoir, one of the projects of water suply from the Yellow River to Qingdao city, is a large reservoir on plain in Shandong Province. The imper vious core of the dam of the reservoir was constructed with mixed weathering rock as material. The results of sampling test indicate that all the physical and mechanical indexes of the core come up to or excess the design standards. The project construction plays an exemplary role for utilizing the local material, saving investment and making convenient for mechanized construction.