It is difficult to establish a simple model which the mathematic or mechanical method can be used in the selection lf mining method, due to many influence and constraint factors.
由于采矿方法选择受诸多因素影响和制约,难于建立一个用数学或力学模型的方法加以处理。
The porosity and permeability of coal-bearing strata have important influence to the exhaust and mining of coal bed gas, but the production of coal bed gas is precondition of its richen.
煤系地层孔隙性和渗透率对煤层气的抽放、排采具有重要影响,但煤层气的生成却是其富集的先决条件。
In-door planting experiment was carried out to study the influence of the mining offal, using coal refuse and fly ash as the planting medium, on the crop of red soybean.
通过室内栽培试验,研究了煤矸石和粉煤灰作为培养基对作物生长的影响。
To study the groundwater flowing law under the influence of mining, relative theories were adopted to analyse the changing law of stress field and seepage flow field in the process of mining.
为了研究采动影响下地下水的流动规律,本文从理论基础出发,分析了在开采过程中应力场和渗流场的变化规律;
The main principle to determine the stability of roadbed and to analyse the influence degree is the surface deformation caused by mining.
采动引起的地表移动变形是确定路基稳定性、分析采空区影响程度的主要依据。
Rockmass structure is one of the controlling factors to coal seam floor's stabilization, and it has an important influence on the mining effect of coal seam floor.
底板岩体结构是煤层底板岩体稳定的主控因素之一,对煤层底板采动效应有着重要影响。
However, it is inevitable to decrease the groundwater level around the mining area and even to influence the water supply safety of the constructed groundwater source fields.
为保证矿区安全开采,采矿本身要求排出大量的矿井水,这不可避免地使附近的地下水水位下降,并可能影响到已有地下水水源地的供水安全,产生供、排水矛盾。
This paper analyze the problems of expanding mining caving lightly set-up room with traditional shield support, it took the influence to join caving lightly workface.
分析了在复杂的地质条件下 ,采用传统的架棚支护在扩掘大断面轻放切眼中出现的问题 ,给轻放工作面衔接带来的影响。
In the air condition system of the high temperature mine, the different ventilation modes would have an important influence to the comfortability and energy saving of the coal mining face environment.
在高温矿井空调系统中,不同的送风方式对工作面环境的舒适度和节能具有重要影响。
The results showed that the higher of the mining influence coefficient, the longer the time interval between the up seam mining and the low seam mining would be favorable to the up seam mining.
结果表明,采动影响系数越大、上下煤层开采间隔的时间越长,对上部煤层的开采就越有利。
On the basis of investigating and analyzing the influence of coal-mining on the groundwater of Taiyuan City, the paper presents measure to protect groundwater during mining coal.
在调查分析太原市煤矿开采对地下水的影响特点等的基础上,提出煤矿开采对地下水的保护措施。
Air leakage from coal mining face to gob has great influence on gas distribution and emission as well as spontaneous combustion in waste.
回采工作面采空区漏风对于采空区遗煤自燃发火和采空区瓦斯分布及其涌出有重要的影响。
The special surveying method of SAR system(side-looking imaging) and specific surface condition of mining area lead to many influence on high precision.
但由于SAR系统的测量方式(侧视成像),以及矿区的特殊地表情况,导致影响其测高精度的因素很多。
Aimed at factors to influence the aquatic environment, the paper put forward measures of water source protecting during coal mining, regulating coalmine exploitation plan and mine...
针对影响水环境变化的因素提出开展采煤保水研究、调整矿山开发规划、矿水污染治理的措施。
Aimed at factors to influence the aquatic environment, the paper put forward measures of water source protecting during coal mining, regulating coalmine exploitation plan and mine...
针对影响水环境变化的因素提出开展采煤保水研究、调整矿山开发规划、矿水污染治理的措施。
应用推荐