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官帽舟水电站挡水坝设计采用碾压式沥青混凝土心墙混合坝,坝体填筑料能较多地利用泄洪建筑物的软岩开挖料。通过沥青混凝土防渗材料试验和坝体应力应变分析,沥青混凝土材料和配合比满足要求,渗流和坝坡稳定均满足规范要求,坝体沥青混凝土心墙不会水力劈裂和剪切破坏,坝体变形适度,不会引起坝体局部沉陷的破坏状况,说明了本工程推荐沥青混凝土混合坝坝型是可行的且经济的。
The official dam of the dam is designed to use a compacted asphalt concrete core-wall hybrid dam, which can make more use of the soft rock excavation materials of flood-releasing structures. Through the asphalt concrete impervious material test and the dam stress and strain analysis, the asphalt concrete material and the mixture ratio meet the requirements, the seepage and the dam slope stability all meet the standard requirements, the dam asphalt concrete core wall will not be hydraulically split and shear failure, the dam The deformation of the body is moderate, it will not cause the damage of local subsidence of the dam, which proves that it is feasible and economical to recommend this type of asphalt concrete mixed dam.