对沿空掘巷时煤柱的留设问题进行了分析和计算。
This paper analyzed and calculated width of coal pillar for driving roadway along gob.
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.
小煤柱护巷是工作面上风巷普遍采用的一种布置方式。
Applying small pillar to protecting roadway is a wide used layout in mining roadway.
留设保护煤柱是防止建筑物受采动损坏的最常用方法。
It is the most common way to remain coal safety pillar for protecting surface buildings from mining damage.
煤柱稳定既取决于外加载荷，又取决于其内在性态的变化。
The stability of coal pillars depends upon additional load as well as change of its internal characteristics.
通过一个实例介绍了用实测技术确定区段煤柱宽度的方法。
The paper introduces a method to use the observation technology to ascertain the width of stage coal pillar by an example.
为解决煤柱强度与刚度的计算问题，首先要进行应力场分析。
For solving calculative problems of the intensity and rigidity of coal pillars, stress field must be analyzed first.
文章介绍了在煤柱中确定巷道位置的方法及巷道的维修措施。
This paper introduced methods to select tunnel position and maintain measures for the tunnel in small coal pillar.
由于煤柱的大大缩小，势必带来压力、水、瓦斯等一系列问题。
Because the coal pillar is reduced greatly, in result it causes a series of problems such as pressure, water and gas.
并计算了与防水煤柱有关的可靠度指标、失效概率和安全系数。
This paper calculates reliability index, lose efficacy probability and safety coefficient corresponding to the width of different barrier pillar.
输出了多因素指数分析图和留设安全煤柱的区划指标等级稳定性图。
The dissertation draws the analytic map about the multifactor indices and the stability diagram about zoning indices rank of setting up the security coal pillar .
通过正交设计，利用FLAC软件模拟，给出煤柱稳定性最优的方案。
By using the orthogonal design method, simulating with program FLAC, the optimized layout of coal pillar is given.
残煤开采是将过去已开采区留下的煤柱、不可采的煤柱，再进行复采。
In the residual coal mining, the retaining and non-mining pillars in the mined area in the past are for resumption of mining.
房屋裂缝是否由煤矿采煤引起，主要是看采空区是否进入村庄保安煤柱。
If the mined zone go into the security coal pillar, the house crack could be thought caused by mining.
运用ANSYS程序对煤柱的稳定性进行了数值模拟，验证了煤柱的稳定性。
Applying the numerical simulation program ANSYS to analyze the stability of pillar, it proved pillar is stable.
理论分析表明，煤柱塑性区宽度不仅与采深、采厚有关，而且也同采出率有关。
Theoretical analysis shows that coal pillars plastic zone width not only with mining depth, mining height, but with the recovery rate.
研究成果为类似条件综放开采留煤柱护巷煤柱合理宽度的确定提供了科学依据。
The research result will provide some scientific references for preserving reasonable coal pillar for the similar mine coals.
将顶板视为中点有支承的弹性固结梁，将煤柱视为支座，形成了顶板-煤柱系统。
The roof of cavern is regarded as an elastic beam with support at the midpoint and the coal pillars are regarded as bearings so as to establishing a cavern roof-coal pillar system.
控制顶板事故，防范冲击矿压的发生是开采埋深较大的孤岛煤柱工作面的重点和难点。
Controlling roof accidents and preventing the occurrence of bursting underground pressure are the priorities and difficulties to mine deeper isolated pillar face.
孤岛综放工作面四周均与采空区相连，其四周煤柱和工作面采空区易于出现自燃发火。
The isolated island working face is surrounded with the goaf and its Surrounding coal column and goaf have a tendency of spontaneous combustion.
以“梁”的理论为依据，确定房柱式采煤法的基本结构煤房和煤柱的参数及计算公式。
On the theory of "beam", the basic structure, parameters and formula for rooms & pillars have been educed.
巷道与上部煤柱边缘之间的水平距离X，是底板岩巷和邻近煤层巷道布置的重要参数。
The horizontal distance X between roadway and the edge of its upper pillar is an important parameter for roadway layout in floor strata and adjacent coal seams.
根据短壁开采条件下保护煤柱的布设特点，建立由保护煤柱支承的关键层力学分析模型。
The mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of short wall mining.
如何安全回收采区上下山孤岛煤柱，提高矿井资源采出量，是矿井生产中遇到的难题之一。
It is one of challenges in the mining production to recover these coal pillars in order to increase the yield.
第四纪底砾层直接覆盖在谢桥煤矿煤系地层之上，其隔水性能影响到防水煤柱的合理留设。
The main target coal seam of Xieqiao Mine is directly covered with the Quaternary bottom gravels, whose impermeability affects the reasonable retainment of waterproof pillar.
通过攻关，解决了综采工艺回收盘区煤柱的技术难题，经过在开采过程中的应用，效果良好。
Through surmounting solves the technology knotty problem of retrieving coal column of mining area with the system mechanization mining technique. By application in mining process the effect is better.
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.
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.
采用岩石破裂过程分析软件RFPA2D系统，对短壁机械化开采的煤柱稳定性进行数值计算与分析。
The stability of coal pillar of the short-wall mining was analyzed systemically by numerical simulation with the rock failure process analysis software (RFPA2D).
采用岩石破裂过程分析软件RFPA2D系统，对短壁机械化开采的煤柱稳定性进行数值计算与分析。
The stability of coal pillar of the short-wall mining was analyzed systemically by numerical simulation with the rock failure process analysis software (RFPA2D).
应用推荐