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介绍了陕西彬长矿区一口“三带”观测孔钻探施工工艺,为了解采空区覆岩破坏情况,划分出垮落带、裂缝带和整体移动带具体位置,准确了解地层,掌握地面变化情况和制定防制措施提供科学依据。
This paper introduces a drilling technique of a “three belts” observation hole in Binchang mining area of Shaanxi Province. In order to understand the damage of overlying strata in the mined-out area, the concrete location of caving zone, Change and development of control measures to provide a scientific basis.