通过网络并行电法数据体的三维电阻率反演,得到矿井工作面底板下三维空间的电阻率分布特征。
With 3D-resistivity inversion technology of the net parallel electrical data, the resistivity distribution 3D mine face floor is got.
本文着重分析了分层综采工作面底板起伏变化的机理及规律,并提出了有效控制分层综采中工作面底板起伏变化程度的方法。
The floor undulation reason and law of the slicing fully mechanized faces is emphatically analyzed, and the effective methods of controlling the floor undulation is worked out.
有限元分析中模拟了底板与基础面之间、锚栓垫片与底板之间、以及锚栓与混凝土之间的接触作用。
Contact problems between concrete base surface and column base, bolt nut and neighborhood plate, bolt shank and bolt hole are simulated really.
综合分析了开采深度、煤层倾角、煤层开采厚度、工作面斜长等地质采矿条件对底板采动导水破坏带深度的影响。
This paper analyzed the influence of mining depth, coal seam dip, mining height and face length on depth of floor water-conductive fissure zone.
利用快速拉格朗日分析方法,单因素分析了工作面斜长和构造应力对煤层底板应力应变的影响。
In this paper, by usage of Fast Lagrangian analysis of Continua, analysis the coal seam floor's stress and strain regularity influenced by the facing length and the construct stress.
介绍一种新型的装载机,该机能适用于巷道底板起伏变化大,工作面围岩稳定性较差的掘进工作面中使用。
The paper introduces a new style of loader which universally used for heading faces with heavy saddle back in roadway and weak stability of face surrounding rock.
通过相似模拟试验,对大段高开采条件下顶煤体靠底板侧煤体弱化程度不同情况下的工作面采出率进行了模拟研究。
With the similar simulation test, a simulation study on the mining rate of a coal mining with the top coal weaken in different degree and under the high cutting mining condition was conducted.
前言:介绍了在被保护层底板巷向保护层工作面施工下向穿层钻孔,抽采保护层工作面采空区瓦斯的具体做法,并对取得的效果进行了分析总结。
This paper introduced the technical of using drilling downward hole from working surfale in protective coat bottom tu pull out goaf gas, and the effects were analysed and summarized.
新汶矿业集团良庄煤矿51101W工作面因底板突水导致工作面被淹。
The water-inrush from floor inundates Working face 51101W in Liangzhuang coal mine, Xinwen Mining Group.
在分析回采工作面支架底座作用在底板岩层上压力分布特征的基础上,选择正方体试件用钢质小圆柱加压实验的方法测定高水速凝材料容许比压。
Based on the analysis of distribution of pressure applied by hydraulic support base on seam floor, a method to test the allowable specific pressure of high water content material was suggested.
介绍应用并行电法采集系统,在卧龙湖矿井103工作面进行底板探测。
This paper introduces the floor detection at 103 working face in Wolonghu Coal Mine by the parallel electrical survey system.
可见采场围岩结构的典型破坏模式以顶底板的弯曲折断破坏和矿柱沿弱面滑移破坏为主。
Can be seen surrounding rock structure of the typical pattern of damage to the roof and floor of bending damage and a broken pillar along the main damage to the weak side slip.
结果表明:762工作面开采对底板卸压应力基本是以线性降低,在 962工作面下平巷形成卸压;
The results show that floor relief stress of 762 working face exhibits a nearly linear decrease, and forms relief zone in the headgate of 962 working face.
重点讨论了煤层底板的应力、位移随工作面开采的变化规律;
The law of deformation and the breakage of coal floor vary with coal mining are discussed.
工作面;底板太灰水;防治。
Face; Very disheartened water of bottom board; Prevention and cure.
在我国华北煤矿区,回采工作面煤层底板突水问题相当严重,困扰着煤矿经济效益的正常发挥。
Water inrush from the bottom coal layer in mining work faced now is rather serious in Northern China coalfield, which constraints seriously the normal economical benefits.
留设保护煤柱时,底板岩巷应位于集中应力区的外侧或跨采时工作面应推过足够距离,使巷道靠近采空区应力恢复区的下方。
The floor roadway should be located out of the abutment stress zone when protection coal pillar is retained, or the working face should be pushed away for enough distance under overhead mining.
堰面及消力池底板压强分布基本满足工程结构要求。
Pressure on crest still basin was in accordance with engineering structure.
在底板高压岩溶含水层上且靠近较大断裂构造弱面采矿时,隔水层段的残余厚度和断裂的采动活化程度是能否突水的关键因素。
The residual thicknesses of aquifuge and mining reactivations of the fault are the key factors to control the water inrush when mining is near the large-scale fault with karst aquifer under the floor.
表盘由彩印薄膜和底板构成,彩印薄膜印有图案、文字、标志的一面胶粘于底板上。
The dial plate is composed of a color printing thin film and a soleplate. The surface with patterns, letters, signals of the color printing thin film is adhered to the soleplate.
另一方面由于混凝土的收缩受到土的约束,底板会产生拉应力。
On the other hand, the tensile stress will appear due to the concrete's shrinkage restricted by the earth.
以新庄孜煤矿56104首个综采面为例,从顶底板的稳定性控制和支架结构参数设置两方面入手,对大倾角综采工作面关键回采技术进行了研究。
Taking the 56104 coal mining face of Xinzhuangzi Mine as the practical example, the paper mainly introduces the key technical measures such as the stability control of roof and floor as well as the …
以新庄孜煤矿56104首个综采面为例,从顶底板的稳定性控制和支架结构参数设置两方面入手,对大倾角综采工作面关键回采技术进行了研究。
Taking the 56104 coal mining face of Xinzhuangzi Mine as the practical example, the paper mainly introduces the key technical measures such as the stability control of roof and floor as well as the …
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