goaf

The ultimate parameter of spontaneous combustion in goaf of fully mechanized coal faces are the lower oxygen concentration 、 the maximal air leak intensity 、 the least thickness of loss coal and the ultimate speed of working face advancing.

确定了综采面采空区遗煤自燃的极限参数：下限氧浓度、极限漏风强度、最小浮煤厚度和工作面推进的极限推进速度。

The influence of different kinds of goaf air leaking to the spontaneous wall face is analysed.

分析了不同类型的采空区漏风对采空区自燃发火的影响.

The roadway maintained along the goaf technology will have significant effect to improve the recovery rate of coal resources, reduce the rate of tunnel boring, ease tension between mining and realize energy-saving emission reduction of mine.

此举对于提高煤炭资源回收率、降低巷道掘进率、缓解采掘紧张关系和实现矿井的节能减排具有显著效果。

Because of strata dip offsets, fractures in goaf area, result in primary strata structural damages, thus geophysical characteristic changes will be along with.

采空区由于原始地层错动、裂缝，地层结构破坏，其地球物理特性也发生了变化。

Mechanical deformation analysis of floor strata of roadway driving along next goaf in fully mechanized sub-level caving face

综放沿空掘巷底鼓的受力变形分析

Computer Simulation Analysis of Several Factors which Influence the Temperature Field of the Goaf

采空区温度场影响因素的电算模拟分析

At present, the methods which has adopted to dispose of the mine solid wastes in the world mainly have used for building material, filling the goaf, recycling useful components, reclamation, and so on. Such works have already gotten good results.

目前，世界各国在矿山固体废弃物污染治理中主要采用的方法有用作建筑材料、充填采空区、回收利用有用组分及造地复田等，已经取得了较好的成效。

At present, many open-pit mine face serious threat of underground goaf in pit limit in china.

目前国内有不少露天矿山在生产过程中面临着境界内地下采空区的严重威胁.

There are many factors influencing spontaneous combustion in goaf and their relative essentialities are different.

采空区自然发火的影响因素很多,各因素之间的相对重要性不同.

Iterative algorithm of boundary air leakage in venting laneway along goaf

采空区沿空通风巷道边界漏风分布的迭代计算

Similarity experiment and numerical simulation study on gas delivery law in goaf

采空区瓦斯运移规律的相似实验与数值研究

A Study of Monitoring the Gas in the Goaf Injected Nitrogen by Optical Gas Detector

用光学瓦斯检定器监测注氮采空区瓦斯浓度的探讨

Water source includes aquiferous layer, river, water-eroded cave, goaf seeper, preferred faults with abundant groundwater.

水源包括含水层、江河、溶洞和采空区积水、洪水倒灌水、富水优势断裂；

Study on the Stability of Goaf in Wuji Iron Mine ( Southern Section) and its Handling Measures

吴集铁矿（南段）采空区稳定性及处理措施研究

Feasibility on the upward mining of the left-over coal above goaf with pillar supporting method It can be described as praxis, critical pedagogy, or critical action research.

刀柱采空区上方遗弃煤层上行开采可行性判定可以把它称为批判性教学法，批判性行动研究，或（哲学意义上的）实践。

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.

Application of High Resolution Seismic and Large Energy Rayleigh Wave Methods in Goaf Detection

高分辨率地震及大能量瑞雷波法在采空区探测中的应用

Controlling of fire in goaf of working face by adjusting pressure with local fan

用局扇调压控制生产工作面采空区火源

The paper first determined the range of Zhongjiashan goaf material-probe method and pit base investigation.

结合物探、坑底调查等方法对钟家山煤矿采煤区的现场勘察,确定采空区的范围.

Due to goaf around, isolated island caving workface possesses complex multi-source and multi-channel exchange of air leakage during normal mining period.

孤岛综放面在正常回采期间，四周均是采空区，具有复杂的多源多汇漏风通道，采空区后自燃“三带”的确定对防灭火具有重要的意义。

Application of determing the caving zone and the water flowing fractured zone in the cover strata of mine goaf by geophysical prospecting methods

地球物理勘探在探测煤矿采空区覆岩两带中的应用

Numerical Simulation of Residual Subsidence in an Underlying Mining Goaf Area of Capital Construction Site Numerical Analysis of Ground Settlement in Mining Areas Under the Railway

基建场地下伏采空区剩余沉降量的数值模拟矿区铁路下开采引发地基沉陷的数值分析

Explanation of the Goaf of Small Coat Pit on Time Section of Seismic Exploration

小窑采空区在地震勘探时间剖面上的解释

Application of the grouting filling technology in goaf on fully mechanized top coal caving mining face through the large coalpit Application of Reinforcement Technology with Grunting in Full-mechanized Mining through Empty Roadway

综放工作面过小窑采空区注浆充填技术应用注浆加固技术在综采面过空巷中的应用

FLAC~ ( 3D) Analysis of Goaf Stability of Jia-zhuang Gypsum Mine

贾庄石膏矿采空区稳定性FLAC~（3D）分析

The method of gas drainagecoal seam gas drainage , near coal gas drainage , and goaf gas drainage.

瓦斯抽放的方法有本煤层抽放 、 邻近层抽放和采空区抽放.

And above 90 % spontaneous combustion occurs in goaf.

其中90%以上自然发火发生在采空区.

Effects of mine goaf on surface building and its engineering measure

采空区对地面建筑物的影响及工程措施

Numerical simulation and visual display of air flow pattern in goaf

采空区风流移动规律的数值模拟与可视化显示

Gas wood road 413 of this mine is through the link-roadway caused by goaf gas discrarging.

该矿413机巷后路瓦斯超限是采空区瓦斯通过联络巷泄漏所致.