stability of coal pillar的意思|示意

The factors affecting coal pillar stability are discussed, and the technical way reducing coal pillar size and enhancing recovery ratio is put forward by means of rock bolting.

本文探讨了影响煤柱稳定性的因素，提出了采用锚杆支护加固煤柱减小煤柱尺寸提高房柱式采煤回采率的技术途径。

In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.

在条带开采煤柱尺寸设计中，目前大多数是采用强度稳定性分析的方法，而没有考虑弱面对煤柱稳定性的影响。

In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.

针对在条带开采煤柱尺寸设计中大多数是采用强度稳定性分析的方法，而没有考虑弱面对煤柱稳定性的影响，由于弱面的存在，煤柱常常会因抗剪强度不够而产生剪切破坏等问题。

The dissertation draws the analytic map about the multifactor indices and the stability diagram about zoning indices rank of setting up the security coal pillar .

输出了多因素指数分析图和留设安全煤柱的区划指标等级稳定性图。

The authors point out the method of how to decide the stability of coal pillar according to microseismic monitoring results.

提出了由微震事件分布推断区段煤柱稳定性的方法。

The stability of goaf-side roadways depends on not only the abutment distribution, but also the fracturing degree of the coal seam and rock strata alone the pillar width.

一侧采空巷道稳定性不仅与支承压力分布有关，而且与煤体受破坏程度有关。