论小学语文课外阅读指导策略

《语文新课程标准》提出,必须加强课外阅读的指导,开展各种课外阅读活动,创造展示与交流的机会,营造人人爱读书的良好氛围。课外阅读不仅是学生开阔眼界、储备知识、训练能力的有益桥梁,而且是大语文课堂所必不可缺的一项重要内容。     

德兴铜矿尾矿库“头顶库”隐患治理

为贯彻落实国家安监部门发布的尾矿库"头顶库"隐患治理文件的要求,在充分分析德兴铜矿尾矿库"头顶库"特点的基础上,结合"头顶库"综合治理措施方法,制定了尾矿库"头顶库"治理方案,治理效果显著,消除了"头顶库"安全隐患,为全国尾矿库"头顶库"治理提供了经验参考。     

大口辐射井在尾矿库堆积坝排渗中的应用

In order to solve the problem that the saturation line of the dam body is shallow in the safety inspection of Dexing Copper Mine tailing dam of Jiangxi Copper Co., Ltd., and ensure the stability of the dam, the reasons for the shallow buried depth of the saturation line of the dam body are analyzed firstly. Then, considering the characteristics of different drainage methods of the tailings pond, combined with the actual situation of the No.2 tailings pond of Dexing Copper Mine, the addition of large radial wells and water is proposed through the establishment of seepage finite element calculation model, it is concluded that after adding large radial well and horizontal drainage layer, the buried depth of saturation line of tailings pond is obviously reduced, the influence range of large radial well is 128~184m, the elevation phreatic line is 5 ~ 12m lower than the current situation, and the average buried depth of phreatic line is 15m, which meets the design requirements under normal working conditions, the saturation line of the dam body is controlled to be 15m deep, which effectively ensures the stability of the dam body.     

德兴铜矿尾矿库“头顶库”隐患治理

为贯彻落实国家安监部门发布的尾矿库“头顶库”隐患治理文件的要求，在充分分析德兴铜矿尾矿库“头顶库”特点的基础上，结合“头顶库”综合治理措施方法，制定了尾矿库“头顶库”治理方案，治理效果显著，消除了“头顶库”安全隐患，为全国尾矿库“头顶库”治理提供了经验参考。