1) roof weighing
顶板来压
1.
A new adaptive pattern recognition method is presented for forecasting roof weighing of high-production and high-efficiency face.
介绍高产高效工作面基于智能技术的顶板来压预测预报方法——自适应模式识别方法,即灰色等维拓扑方法预测预报顶板来压。
2) intensity of roof weighting
顶板来压强度
3) periodic roof weighting
顶板周期来压
1.
The relationship between periodic roof weighting and gas emission from stopping area was studied by monitoring on site.
通过现场监测研究了顶板周期来压与采场瓦斯涌出变化之间的关系,并对工作面超前支承压力变化和采空区老顶垮落对瓦斯流动的影响进行了分析。
4) predict the coal mining roof's press
煤矿顶板来压预测
5) pressure from the top
大顶来压
1.
Basing on the two practical examples,we regard that the running water of the working surface has close relationships withmany factors,such as the pressure from the top,thickness of the water-resistantplate,breaking of the bottom plate and so on.
文章根据两个实例的研究认为:工作面的突水与大顶来压,隔水层厚度,底板破碎情况等因素都有密切的关系。
6) old roof pressure
老顶来压
1.
This paper analyzes the influence of the regulation of the old roof pressure of the mining field on the roof fall accidents of the mining field, and puts forward some corresponding effective preventive measures.
分析了采场老顶来压规律及其对采场冒顶事故的影响,针对冒顶事故的发生提出有效的预防措施。
补充资料：冲击波超压与动压