1) mining and pillar width
采留宽
1.
Thus, rational mining and pillar width were confirmed to ensure that surface di.
从而确定了地表变形在Ⅰ级破坏范围内的合理采留宽度,为研究条带开采地表移动规律和“三下”压煤条带开采设计提供了依据。
2) mining and remaining width
采留宽度
3) Calculation of width left for mining
采留宽计算
4) size of pillar and mining
条带采留宽度
1.
Three principles and the new calculating method to determine the proper size of pillar and mining width have been presented.
给出了覆岩中波浪状下沉传播高度与条带采留宽度尺寸之间的关系和条带法开采地表下沉系数的表达式。
5) retaining width
留宽
1.
According to the character of 2503、2505 working face occupied by structure in Zhucun coal mine, the mining width and retaining width are compared, and the plan of strip mining is determined.
针对朱村矿 2 5 0 3、2 5 0 5工作面上方大面积建筑物压煤的情况 ,采用条带开采方案 ,并对采宽和留宽进行了优化 ,提高了煤炭回收率 ,保证了地表建筑物及其生活设施的正常使用。
6) mining width
采宽
1.
According to the character of 2503、2505 working face occupied by structure in Zhucun coal mine, the mining width and retaining width are compared, and the plan of strip mining is determined.
针对朱村矿 2 5 0 3、2 5 0 5工作面上方大面积建筑物压煤的情况 ,采用条带开采方案 ,并对采宽和留宽进行了优化 ,提高了煤炭回收率 ,保证了地表建筑物及其生活设施的正常使用。
2.
The evolution of crack network with the increasing of mining width is investigated.
借助相似材料模型实验，模拟了采动岩体的裂隙分布状态，应用分形几何理论研究采动岩体裂隙分布的自相似规律，继而研究分形裂隙网络随着采宽增加的演化规律。
3.
With mining width increasing,traditional statistical formula and theoretical formula of floor failure height couldn\'t meet requirement of production practice.
以某矿11号煤层开采为工程背景,运用二维有限差分计算机软件(F-RFPA2D分析系统软件)模拟分析工作面采宽与底板采动破坏带深度之间的关系,并确定工作面临界采宽。
补充资料：宽留
1.请人留住的敬辞。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条