Based on an actual project,tests and analyses the heat exchanging performances of the vertical U-shaped ground heat exchanger,and obtains the heat release in summer and the heat absorption in winter of ground heat exchanger for unit well depth and the optimal drilling depth.
根据工程实际情况,对竖直U形地埋管换热器的换热性能进行了现场测试和分析,得出了单位井深地埋管的夏季散热量、冬季取热量及最佳地埋管钻孔深度。
Application of drill hole technology in inclined shaft's dewatering system;
钻孔技术在斜井排水中的应用
3D reconstruction from section plane views based on drill hole information;
基于钻孔信息的二维剖面图的三维实体重建
Study on the equipment and machining methed of drilling-tapping once shaping;
钻孔和攻丝一次成形的加工方法及设备研究
Experimental simulation of drilling impact of coal sample in three-axle enclosed pressure;
煤样三轴围压钻孔损伤演化冲击实验模拟
Study on drilling performance of swiveling conic abrasive jet;
旋转锥形磨料射流钻孔性能的研究
Technical practice of using downward drilling hole to pull out gas;
下向穿层钻孔抽采瓦斯技术实践
The relation between pumping volume of drilling hole and uranium concentration in pregnant solution;
钻孔抽液量与浸出液铀浓度的关系
An optimum method of calculating drilling hole position in preventing cross-measure cutting coal gas burst is put forward.
提出了在石门揭煤中预防瓦斯突出的一种计算钻孔位置的优化方法。