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。
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 in- flow, 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.
出处
《煤矿安全》
CAS
北大核心
2014年第3期53-56,共4页
Safety in Coal Mines
关键词
涌水量
断面面积
流速
回归分析
水沟
浮标系数
water inflow
cross - sectional area
velocity
regressive analysis
ditch
float coefficient
