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A platform for research: civil engineering, architecture and urbanism
Induced caving method for concealed goaf of strip mine
The invention discloses an induced caving method for a concealed goaf of a strip mine, and relates to the field of mining. Comprising the following steps: address investigation: acquiring the position, size and form of a goaf according to historical mining records and in combination with a geological radar; performing three-dimensional modeling, namely performing three-dimensional modeling on the goaf according to the survey data; carrying out risk assessment and positioning, carrying out stress analysis according to the modeling model, and determining a grouting position according to an analysis result; drilling and grouting are conducted, specifically, drilling is conducted according to the determined grouting position, then a grouting material is selected, and grouting is conducted in the hole after the grouting speed is determined; and a discrete cushion layer is laid, after grouting is finished, waste rocks or tailings are laid according to roof caving and the scale of the roof caving, and then tamping treatment is conducted. By expanding the effective exposed area of the periphery of the goaf, natural caving of the goaf roof is induced, and safe, economical and efficient caving treatment is achieved.
本发明公开了露天矿隐伏采空区诱导放顶方法，涉及采矿领域；包括以下步骤：地址勘察，根据历史开采记录以及结合地质雷达获取采空区的位置、大小以及形态；三维建模，根据勘测数据，对采空区进行三维建模；风险评估和定位，根据建模模型进行受力分析，从而根据分析结果确定注浆位置；钻孔与注浆，根据确定的注浆位置进行钻孔，然后选择注浆材料，确定注浆速度后，向孔内注浆；散体垫层铺设，注浆结束后，根据顶板冒落与其规模铺设废石或者尾砂，然后进行夯实处理。本发明通过扩展采空区周边的有效暴露面积，诱导采空区顶板自然冒落，实现安全、经济、高效的放顶处理。
Induced caving method for concealed goaf of strip mine
The invention discloses an induced caving method for a concealed goaf of a strip mine, and relates to the field of mining. Comprising the following steps: address investigation: acquiring the position, size and form of a goaf according to historical mining records and in combination with a geological radar; performing three-dimensional modeling, namely performing three-dimensional modeling on the goaf according to the survey data; carrying out risk assessment and positioning, carrying out stress analysis according to the modeling model, and determining a grouting position according to an analysis result; drilling and grouting are conducted, specifically, drilling is conducted according to the determined grouting position, then a grouting material is selected, and grouting is conducted in the hole after the grouting speed is determined; and a discrete cushion layer is laid, after grouting is finished, waste rocks or tailings are laid according to roof caving and the scale of the roof caving, and then tamping treatment is conducted. By expanding the effective exposed area of the periphery of the goaf, natural caving of the goaf roof is induced, and safe, economical and efficient caving treatment is achieved.
本发明公开了露天矿隐伏采空区诱导放顶方法，涉及采矿领域；包括以下步骤：地址勘察，根据历史开采记录以及结合地质雷达获取采空区的位置、大小以及形态；三维建模，根据勘测数据，对采空区进行三维建模；风险评估和定位，根据建模模型进行受力分析，从而根据分析结果确定注浆位置；钻孔与注浆，根据确定的注浆位置进行钻孔，然后选择注浆材料，确定注浆速度后，向孔内注浆；散体垫层铺设，注浆结束后，根据顶板冒落与其规模铺设废石或者尾砂，然后进行夯实处理。本发明通过扩展采空区周边的有效暴露面积，诱导采空区顶板自然冒落，实现安全、经济、高效的放顶处理。
Induced caving method for concealed goaf of strip mine
露天矿隐伏采空区诱导放顶方法
CHEN GUANGMU (author) / QIU ZHENHUA (author) / SUN QINGFU (author) / ZHAO XING (author) / ZHANG AISHU (author) / ZHENG CHUNBAI (author) / LAN YU (author) / HUANG CHUNFU (author) / CHEN XUEJUN (author) / JIANG HUAN (author)
2024-12-06
Patent
Electronic Resource
Chinese
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