coal pillar mining的意思|示意

Recovering coal by sublevel mining pillar and not damaging the houses on ground is introduced.

用条带开采煤柱回收煤炭资源，而不破坏地面房屋、住宅。

These studies have evident theoretical significance to decrease coal pillar size and enhance recovery ratio, and practical importance to solve the problems of irregular seam mining in our country.

本文研究对减小煤柱尺寸，提高房柱式采煤回采率具有明显的理论指导意义，对解决我国生产矿区面临的不规则区段煤层开采问题具有实际意义。

The mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of short wall mining.

根据短壁开采条件下保护煤柱的布设特点，建立由保护煤柱支承的关键层力学分析模型。

In our country, there are 48 cities established on coal mining, and the notable features of these cities are that the pillar industry is closely related to the resource exploiting.

在我国主要以煤炭开采为主建立的煤炭城市有48座。这些城市的突出特点是支柱产业与资源开发息息相关。

The research achievements were applied to the dip coal pillar area of No. 21 mining district, Qianqiu coal mine successfully.

经千秋煤矿21 采区下山煤柱区现场应用，效果良好。

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。