文章通过对条带充填开采煤柱载荷和煤柱强度的理论分析,提出了条带充填开采所需留设的合理煤柱尺寸及开采宽度。
Through theoretical analyses of the pillar stress and pillar strength in the pillar-and-stripe mining with backfilling, the rational pillar size and mining stripe opening are deter - mined.
首次提出了根据屈服带宽度和条带煤柱宽度来确定条带开采安全系数的方法,同时给出了设计条带开采尺寸的步聚。
It is first raised that safety coefficient can be calculated by using the widths of yield zone and pillar, and the steps of designing the strip mining size are pro-posed.
首先对煤矿地质条件进行分类,采用连续介质力学理论,探讨条带开采的合理条带煤柱尺寸。
The coal mine's geological conditions are classified, and the rational sizes of strip coal pillars in strip mining are discussed using the theory of continuous medium mechanics.
本文通过相似材料模型试验探讨了条带法开采中条带煤柱的支撑状态及覆岩和地表移动问题。
Modelling tests are made to study problems of supporting state of coal pillar together with characteristics of overlying strata and surface movement in partial mining in this paper.
详细分析了条带煤柱复采时沿空掘巷的支护特点。
The supporting characteristics of roadways driving along next goaf in repeated mining of strip pillar were analyzed.
走向条带煤柱的破坏失稳是典型的偏离平衡态的非线性过程。
The instability and failure of strip coal pillar along strike is a typical nonlinear process.
条带开采是解决当今日益严重的村庄建筑物压煤问题的主要措施之一。
Strip mining is one of the main measures to mine the coal that is buried under villages and buildings.
实例分析表明用该公式计算条带煤柱破坏宽度是符合实际的。
It was shown that the damaged width calculated by the formula was in accordance with the observed data.
通过数学运算推导出条带煤柱塑性区应力及宽度的表达式。
A formula of the stress and the width of plastic zone in strip coal pillars is derived by strictly mathematical calculation.
在条带开采煤柱尺寸设计中,目前大多数是采用强度稳定性分析的方法,而没有考虑弱面对煤柱稳定性的影响。
In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.
针对在条带开采煤柱尺寸设计中大多数是采用强度稳定性分析的方法,而没有考虑弱面对煤柱稳定性的影响,由于弱面的存在,煤柱常常会因抗剪强度不够而产生剪切破坏等问题。
In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.
系统地分析了条带开采中煤柱稳定性问题。
A systematic analysis of pillar stability in strip mining was made. It suggest that a.
系统地分析了条带开采中煤柱稳定性问题。
A systematic analysis of pillar stability in strip mining was made. It suggest that a.
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