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1 概况 直界水库位于山东省宁阳县东部山丘区,始建于1966年,流域面积26km~2,总库容1500万m~3,是以防洪为主兼有灌溉及水产养殖等功能的综合型水库。水库大坝为均质土坝,长600m,坝顶宽6m,最大坝高14.3m。该水库地质结构复杂,岩溶、裂隙发育。施工时分段较多,进度不一致,接头处理不善,清基不彻底,筑坝土料有大量冻土和页岩,且碾压不实。工程建成蓄水后,大坝坝体及坝基漏水严重,大坝发生严重沉陷,坝肩严重裂缝等,存在很多病险问题。
1 Overview Located in the hilly area of the eastern part of Ningyang County, Shandong Province, Zhijie Reservoir was established in 1966 with a drainage area of 26km ~ 2 and a total storage capacity of 15 million m ~ 3. It is mainly flood control with functions of irrigation and aquaculture Integrated reservoir. Reservoir dam is a homogeneous earth dam, 600m long, crest width 6m, the maximum dam height 14.3m. The geological structure of the reservoir is complex with karst and fissure development. The construction of more sub-sections, the progress is inconsistent, poor joint processing, not completely clear foundation, dam material with a large number of frozen soil and shale, and the compaction is not real. After the completion of the project, the water leakage of the dam body and dam foundation is serious, serious dam settlement occurs, severe cracks in the dam shoulder and the like exist and there are many problems of risk.