王鹏, 林斌, 侯海杰, 龙依. 某矿副井冻结壁温度场发展规律研究[J]. 煤矿安全, 2018, 49(8): 214-217.
    引用本文: 王鹏, 林斌, 侯海杰, 龙依. 某矿副井冻结壁温度场发展规律研究[J]. 煤矿安全, 2018, 49(8): 214-217.
    WANG Peng, LIN Bin, HOU Haijie, LONG Yi. Research on Development Laws of Freezing Wall Temperature Field in a Mine Auxiliary Shaft[J]. Safety in Coal Mines, 2018, 49(8): 214-217.
    Citation: WANG Peng, LIN Bin, HOU Haijie, LONG Yi. Research on Development Laws of Freezing Wall Temperature Field in a Mine Auxiliary Shaft[J]. Safety in Coal Mines, 2018, 49(8): 214-217.

    某矿副井冻结壁温度场发展规律研究

    Research on Development Laws of Freezing Wall Temperature Field in a Mine Auxiliary Shaft

    • 摘要: 为了研究多圈管冻结壁温度场发展规律,通过某矿副井实测数据和FLAC3D数值模拟研究冻结壁温度场发展规律,并将模拟结果与实测数据对比分析。结果表明:测温孔温度实测值与模拟值具有相同的发展趋势,均随冻结时间呈对数关系下降,在结冰点处呈台阶状,最终均趋于稳定;冻结壁平均温度和有效厚度实测值与模拟值基本一致,在中圈孔交圈后,冻结壁有效厚度明显增大;主界面温度场曲线在冻结管处近似呈V形发展,主界面温度随冻结时间逐渐下降。

       

      Abstract: In order to study the temperature field development laws of multi-loop tube freezing wall, the development laws of frozen wall temperature field were studied by measured data and FLAC3D software numerical simulation in a mine auxiliary shaft, the simulation results are compared with the measured data. The research results show that measured values from measure temperature hole and simulated values have the same trend of development, all of them decrease logarithmically with the freezing time and show a step shape at the freezing point, eventually become stable; the measured values of the average temperature and the effective thickness of the frozen wall are in agreement with simulated values, the effective thickness of the frozen wall increases obviously after the joint circle of the middle circle hole, the temperature field curve of the main interface is approximate V-shape at the freezing tube, the temperature of the main interface gradually decreases with the freezing time.

       

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