结合工程实例,对鸭寨水库工程的坝体石方料开采以及爆破方案进行了简要的阐述。鸭寨水库沥青心墙土石坝工程区位于贵州省三都县,坝体石料开采条件较差。为满足施工工期,提高工程施工进度和施工效率,根据钻孔揭露地层岩性,采用浅孔与中深孔爆破法相结合的爆破方案,自上而下、分层台阶式施工。通过爆破效果原因分析以及对爆破参数和措施进行改进,有效的解决了爆破石料级配不连续的问题。所总结和积累的相关施工经验,对推动原岩节理和软弱夹层岩体爆破技术及管控措施的发展及土石坝料场等类似工程具有良好借鉴意义。

Combined with the engineering example, the dam rock material mining and blasting scheme of Yazhai reservoir project are briefly described. The asphalt core wall earth-rock dam of Yazhai Reservoir is located in Sandu County, Guizhou Province. The mining conditions of the dam stone are poor. In order to meet the construction period and improve the construction progress and construction efficiency of the project, according to the lithology of the strata exposed by drilling, the blasting scheme combining shallow hole and medium-deep hole blasting method is adopted, and the construction is carried out from top to bottom and step by step. Through the analysis of the causes of blasting effect and the improvement of blasting parameters and measures, the problem of discontinuous grading of blasting stone is effectively solved. The relevant construction experience summarized and accumulated has a good reference significance for promoting the development of blasting technology and control measures of original rock joints and weak interlayer rock mass and similar projects such as earth-rock dam yard.

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