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- Through studing the coal pillar width Parameter in 3246 along stull machine tunnel in QiDong Coal mine, ascertainment the coal pillar width Parameter in Similar geologic condition . 通过对我矿3246沿空机巷煤柱宽度参数的研究,确定了类似地质条件下的煤柱宽度参数,为今后的采区设计提供了理论依据。
- The study indicates that with the increase of the coal pillar width the peak mining stress delays its appearance and the increase of the displacement and stress are not synchronous. 研究表明，综放沿空留巷受采场矿压影响时间和程度随留巷煤柱宽度的增加表现出明显带后现象以及位移和压力增长的不同步现象。
- Keywords solid road;Along stull drivage;coal pillar width; 煤巷;沿空掘进;煤柱宽度;
- Choice of Coal Pillar Width for Gob Side Entry Retaining in Complex Condition 复杂条件下沿空掘巷煤柱宽度的选择
- The Study and apply of the coal pillar width Parameter in along stull tunnel 沿空巷道煤柱宽度参数的研究与应用
- Influenced of coal pillar width on deformation and fracture of gateway surrounding rocks in fully mechanized top-coal caving mining 煤柱宽度对综放回采巷道围岩破坏场影响分析
- Determination of small coal pillar width in roadways driving along next goaf supported by bolting and mesh of fully-mechanized top-coal caving face 综放锚网沿空巷道合理小煤柱尺寸的确定
- Study On Narrow Coal Pillar Width and Support Parameter of Coal Gates Close to Gob in Fully Mechanized Longwall Top Caving Face 综放面沿空掘巷窄煤柱宽度及巷道支护参数研究
- Analysis on coal pillar width influenced to mechanics characteristics of surround rocks in fully mechanized coal mining gateway 煤柱宽度对综放回采巷道围岩力学特征影响分析
- Effect of coal pillar width on the stress distribution law of surrounding rocks in fully mechanized top-coal caving mining face 煤柱宽度对综放面围岩应力分布规律影响
- Keywords comprehensive mechanization caving coalface,coal pillar entry retaining,numeric simulation,coal pillar width,bolt-mesh support,underground pressure observation; 关键词综放工作面;煤柱留巷;数值模拟;煤柱宽度;锚网支护;矿压观测;
- coal pillar width 煤柱宽度
- The results indicate that the width of coal pillar has a great influence on the stress distribution of the gob-side entry. 研究表明：留设煤柱的宽度对孤岛面沿空巷道的应力分布有较大影响；
- The study manifested the uncoupled pattern of the peak stresses in vertical and horizontal directions, as well as the stress evolution trace varying with pillar width. 揭示了煤体边缘水平应力和垂直应力峰值不耦合的规律以及巷道顶板应力峰值随煤柱宽度不同而演化的轨迹。
- Secondly, simulation elicits wall rock transmogrification under the different coal pillar and different stress. 其次模拟研究分析了留设煤柱宽度不同时以及地应力大小不一时沿空巷道围岩变形情况，得到了一些认识；
- The coal pillar has mode-soft behaviour, so it is possible to estimate the destabilization. 煤柱失稳还具有模态软化特性，可以对失稳的可能性进行佑计。
- The roof rock was assumed in the elastic state,established the mechanical model of coal pillar and roof system. 假设顶板岩层处于弹性工作状态情况下,建立了煤柱-顶板系统的力学模型。
- The optimized Width of Narrow Coal Pillar 窄煤柱最佳宽度
- In the plastic limit analysis,the wrinkler's plate is smartly analyzed in yield-line theory to get the critical compression strength of the coal pillar. 在分析过程中,利用机动法对温克尔地基板(弹簧支撑板)进行了塑性极限分析,得出了煤柱抗压强度的临界值。
- The results show that the coal pillar destabilization has catastrophe and gradualness paths, which correspondingly cause the violent destroy and the gradualness "weak" destroy. 结果表明：煤柱失稳具有突变、缓慢2条路径，相应地形成了煤柱失稳的突然猛烈破坏和较缓慢的“瘫软”破坏；
