采空区

Coal crack and destabilization quantitative experiment is a fundamental study on forecast dynamic hazard of gob area.

煤岩破裂与失稳的定量化实验是准确预测预报采空区动力学灾害的基础研究。

So, the stability study of the building foundation with goaf is propitious to disposing surroundings of diggings, utilizing the soil of diggings, construct of important infrastructure and programming of the small towns.

因此，开展老采空区建筑地基稳定性的研究，对我国矿区环境的治理，矿区土地的利用及重大基础设施的建设和小城镇建设规划都具有十分重要的现实意义。

Usually, gob areas are reconstructed for reclamation, fishpond, and plant.

一般来说，采空区的利用就是土地复垦、养鱼、绿化等。

The coal spontaneous combustion in the goaf is one of the main coal disasters.

采空区煤炭自燃火灾一直是我国煤矿的主要灾害之一。

In the angle of safety, economy and persistent development, how to choose the filling material to fill the goaf is presented.

从安全，经济和可持续发展的角度阐述了矿山采空区充填材料的选取原则。

Thus research on systemic control and engineering technology application about goaf is important and urgent.

因此，开展采空区综合治理和工程应用技术的研究显得尤为重要，具有现实意义。

And above 90% spontaneous combustion occurs in goaf.

其中90％以上自然发火发生在采空区。

Furthermore, th e cycle of water pouring into the goaf is especially investigated.

此外，还对往采空区注水的周期进行了专门的研究。

It suggests that studying goaf gas flow patterns applying CFD model is one of the feasible methods.

同时表明：采用CFD模型研究采空区瓦斯流动规律是可行的方法之一。

This method can be used generally to divide "three zones" of the depressing zones overlying a goaf.

此方法可普遍用于采空区上覆岩层的"三带"划分。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷