1) gob-side entry retaining in fully-mechanized caving face
综放沿空留巷
1.
Reliability analysis on support structure of gob-side entry retaining in fully-mechanized caving face;
综放沿空留巷支护结构的可靠性分析
2) fully-mechanized caving roadway
综放沿空巷道
1.
Study by udec simulation of fully-mechanized caving roadway surrounding rock system;
综放沿空巷道围岩系统稳定性的UDEC模拟分析
2.
The roof and side of fully-mechanized caving roadway are coal body or coal pillar which cause the stability problem extremely prominent.
以南屯煤矿综放沿空巷道为原型,进行围岩稳定性的离散元数值模拟,提取表征系统动力学性态的变量及时间序列,通过功率谱分析、分维数提取和最大Lyapunov指数计算,研究围岩系统的混沌动力学特征。
3) place along free lane in integrated mining
综放沿空掘巷
1.
Analysis of place along free lane in integrated mining;
综放沿空掘巷位置的分析
4) retaining roadways along goaf
沿空留巷
1.
The mining technology by areas with retaining roadways along goaf is applied in Baishan Coal Mine.
百善煤矿采用沿空留巷分区开采技术将669不规则工作面划分成4个小工作面,逐一成功回采。
2.
The retaining roadways along goaf is applied in the left No.
东山煤矿下五采左二下巷沿空留巷,采用钢网、锚杆、锚索、石墙联合支护取得了良好的效果,缓解了采掘接续紧张局面,加快了接续能力,并创造了较好的经济和社会效益。
3.
Some aspects were analyzed,such as the function of support in retaining roadways along goaf,mine pressure behavior,support ways,the satisfied requirements,and the existing problems in maintenance.
分析了沿空留巷支护的作用、矿压显现、支护方式、应满足的要求及维护中存在的问题。
5) gateway retained for next sublevel
沿空留巷
1.
Cause analysis on roof broken in mine gateway retained for next sublevel in Xinghua Mine as well as prevention and control;
杏花煤矿沿空留巷顶板破碎原因分析及其防治
2.
Research on technology of gateway retained for next sublevel with anchor support;
锚索支护沿空留巷技术研究
6) gob-side entry retained
沿空留巷
1.
In this paper,the characteristics of ground-pressure are studied at gob-side entry retained in Jixi Coal-mining Group Company.
研究了鸡西矿业集团沿空留巷的地压显现特征,应用切槽放顶法调整了沿空留巷的地压,确保了安全生产,并带来了明显经济效益。
2.
The effect regularity of main roof rupture location,top-coal length uncaved at the end of working face,filling belt width, filling way,filling belt strength to surrounding rock stability around gob-side entry retained in top-coal caving mining face were analyzed.
在工程实践的基础上,采用适于分析岩层断裂和垮落的数值分析软件UDEC建立相应的数值分析模型,详细分析了老顶断裂位置、端头不放顶煤长度、充填体宽度、充填方式和充填体强度对综放沿空留巷围岩稳定性的影响规律。
3.
By using numerical analyses software UDEC which is suitable for analyzing rock stratum rupture and collapse, the numerical models were set up to study the effect of support way, filling belt width, filling way, filling belt strength and top-coal length uncaved on the gob-side entry retained in top-coal caving mining face.
采用适于分析岩层断裂和垮落的数值分析软件UDEC建立相应的数值分析模型,分析了留巷前巷道支护形式、充填体宽度、充填方式、充填体强度和端头不放顶煤长度等对综放沿空留巷的作用和效果。
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