煤层流变引起的厚度变化和煤体结构的破坏是造成煤矿瓦斯突出的主要因素。
The change in thickness of coal seams and destruction of coal structure caused by the rheology of coal seams is the main factor causing gas outbursts of the coal mine.
其中煤层的渗透性是关键因素之一，包括煤体结构和割理发育程度两个方面。
Permeability of coal bed is one of the critical factors involving coal bed structure and development of cleating.
地质构造、煤体结构及煤厚变化是二氧化碳突出的三项重要因素和必要条件。
The results show that the most important control factors include geological structures, coal texture and coal thickness variations.
利用乌兰井田勘探和生产揭露的资料，分析研究了乌兰井田地质构造和煤体结构特征。
From exploration and production information revealed in Ulan minefield, the paper analyzed geological structure and coal texture of the minefield.
在现场观测及实验研究基础上，对急倾斜水平分段放顶煤开采过程中顶煤体结构进行了研究。
Base on the site observation and experimental research, the paper studied the top coal structure for the top coal caving mining in steep inclined seam sections.
对十二矿影响煤与瓦斯突出的井田地质构造、煤体结构、煤厚及其变化、煤层围岩等地质因素进行了分析。
The geologic factors which have effected on the well geologic structure, coal structure, coal thickness and its changes, coal seam surrounding rock and some other factors have been analysed.
通过对煤心样品的观察研究得出，煤心具有不同的形状，此形状受煤体结构制约，区分不同煤心形状，能确定煤层中不同的煤体结构。
Based on observation of coal cores it is concluded that the coal core consists of different forms in shape, controlled by coal block texture.
阐述了改造型含煤盆地煤储层被改造的两种形式 ；煤体结构的改造及构造煤的形成原因 ；后生充填物对煤层孔隙的改造及形成原因。
Two patterns of reformed coal reservoirs in reformed coal basins, the reformation of coal structure and reformed fracture by aposedimentary fillings and forming of the fillings are introduced.
并结合一些实验数据，分析了煤体结构的差异对瓦斯突出能量的某些影响，是一步揭示了瓦斯突出多发生在地质构造破坏带的另一种内在联系。
The author analyzes some influences of the coal-body texture on the outburst energy, and further reveals another relation of outburst in the structural zone.
但是在准确检测煤体的结构类型的方法仍然存在着不足。
But methods which can accurately distinguish the coal structure type are not perfect.
雨水应从这些中和槽被引导至存放结构体，在煤料和石灰石场再利用。
From these tanks the water shall be directed to storage structures to be reused later in the coal and limestone yards.
煤体层理结构的研究是煤层气开发开采的理论基础和前提条件。
Research on coal bedding structure is the theory foundation and precondition of coal seam gas exploitation.
并提出了顶煤体中“跨层拱”结构的力学模型，指出了影响结构特征的相关因素。
The paper provided the mechanics model of the multi strata arch structure in the top coal and pointed the related factors of the influence structure features.
研究表明，支架上方顶煤体中能够形成“拱”结构，该结构的存在将对工作面矿山压力显现产生显著影响。
The research results showed that an arch structure would be formed in the top coal above the supports.
煤巷顶板多数是岩体强度较低的沉积岩，层状岩体结构是沉积岩的主要特征之一。
Most rock roof of roadway is sediment rock, so its intensity is low, the stratification is a common rock mass structure in coal mines.
根据护巷岩(煤)柱的结构特征，提出了几何弱结构巷道与弱结构体的概念。
According to structure character of rock (coal) pillar of maintaining roadways, concepts of weak geometry structure roadways and weak structure body are brought forward in this paper.
巷道围岩是由顶板、底板、两帮组成的复合结构体，回采巷道两帮为软弱煤体，直接影响到底板的稳定性。
The surrounding rock of roadway is a compound structure consisted of roof, floor and sides. The sides of extraction opening are the weak coal mass, which affect the stability of floor directly.
通过对顺槽煤柱破坏失稳机理及煤柱上覆岩体的结构特征、垮落失稳机理的分析，提出了合理煤柱宽度的计算公式。
Through analyze the failure mechanism and structural feature of mine pillar and upside rock, the reasonable virgin coal width formula has been obtained.
通过对顺槽煤柱破坏失稳机理及煤柱上覆岩体的结构特征、垮落失稳机理的分析，提出了合理煤柱宽度的计算公式。
Through analyze the failure mechanism and structural feature of mine pillar and upside rock, the reasonable virgin coal width formula has been obtained.
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