矿井水沟断面面积与流速之间的回归及浮标系数的确定
Regression Between Cross-sectional Area of Mine Ditch and Water Flow Velocity and Float Coefficient Identification
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摘要: 通过对某矿井中央水仓12个月涌水量测算中水沟断面平均面积与平均流速数据的回归分析及效果检验，得知断面平均面积与平均流速之间存在线性负相关关系：断面平均面积大，流过的水流速度小，断面平均面积小，流过的水流速度大。利用观测结果计算的涌水量除以断面回归平均面积与观测水流速的乘积得到计算涌水量的修正浮标系数，该浮标系数使得回归涌水量更接近观测涌水量。Abstract: A negative correlation between mean cross-sectional area and mean velocity of water flow had been established and tested by regressing mean sectional area and mean velocity of water flow monthly by using the data that were measured over a period of 12 months in the central water sump of one mine. The result showed that the higher of the mean cross sectional area is, the lower of the velocity of water flow is, and inversely, the lower of the mean cross sectional area is, the higher of the velocity of water flow is. Using water inflow, which obtained by calculating the observed data, divided by the product of mean regression area of cross sectional area timing the velocity of water flow, the corrected float coefficient of water inflow could be got. This corrected float coefficient makes the water inflow more approximate to the observed one.
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Keywords:
- water inflow /
- cross-sectional area /
- velocity /
- regressive analysis /
- ditch /
- float coefficient
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[1] 中国冶金矿山企业协会.冶金矿山地质技术管理手册[M].北京：冶金工业出版社，2008：181. [2] 朱蕾.矿井涌水量观测的几种简单方法[J].煤炭技术,2007，26（10）. [3] 张平，刘成河. 煤矿井下涌水量预测及矿井排水能力改造[J].煤矿安全,2011，42（1）:100-103.
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