采区走向长度

当采区走向长度确定之后，可以通过改变首采工作面的长度来控制工作面终采线的位置，实现采区上山煤柱尺寸最小化。

The optimal location of the terminal line of coalfaces can be controlled by altering length of first coalface after the length of mining district is determined , so as to minimize the pillar size of rises .

倾斜分层采煤法的分层开采顺序（分采或同采）问题与采区走向长度问题互有联系。

In the mining of a thick gently pitching coal seam by inclined slicing method , the sequence of mining slices ( slices mined successively or simultaneously ) and the length of mining section along the strike are mutually related .

最后得出关于采区合理走向长度和两种分层开采顺序适用条件的结论。

Finally , we concluded the optimal length of mining section along the strike and the appropriate conditions of application of these two sequences of mining slices .