本文介绍了德国煤矿沿空留巷技术及相应的防治自然灾害措施。
This text introduces the technology of remained tunnel for continuous usage in work-out area in Germany coal mine and corresponding measures of preventing and curing natural disast…
通过对大结构关键块稳定性分析,论证了综放沿空留巷的可行性。
Based on the stability analysis of key-block with large structure, the feasibility of gob-side entry retaining has been demonstrated.
研究结果可对综放巷内充填沿空留巷的应用提供理论依据和设计指导。
The results can provide theory basis and design guidance for the application of the GERTCF.
研究成果为较大采高工作面沿空留巷技术提供了理论依据和借鉴经验。
The research result provides a theoretical basis and some useful experience for the gob-side entry retaining work of large mining-height working faces.
该法施工工艺简单,成本低廉,可使沿空留巷达到较好的技术经济效果。
The advantages of this method are inexpensive, simple for construction and able to get good benefits to retain roadway for next sub-level.
分析了沿空留巷围岩移动的力学根源和巷道煤帮内支承应力变化的规律。
An effort has been also made to diagnose the dynamic causes of displacement of the surrounding rocks and the occurrence of changes of bearing stress in roadway coal pillars.
分析了沿空留巷围岩移动的力学根源和巷道煤帮内支承应力变化的规律。
An effort has been also made to diagnose the dynamic causes of displacement of the surrounding rocks and the occurrence of changes of bearing stre...
该法施工工艺简单,成本低廉,可使沿空留巷达到较好的技术经济效果。
The advantages of this method are inexpensive, simple for construction and able t...
介绍综采工作面沿空留巷方法,提高采区资源回收率,缓解采掘关系紧张问题。
This paper introduces comprehensivelg to adopt in working range leaving lane method to raise rate of recovery of resource, to alleviate and to excavate the tense problem of the relation.
可缩量、理论值与现场沿空留巷试验测结果相同,说明了这种力学模型的正确性。
The shrink quantity, theory value and test result of retaining roadways along goaf are the same, this shows the exantness of the mechanics model.
综放沿空留巷技术研究成果的成功应用为综放工作面实现集约化高效生产开拓了新路。
Based on the successful application of gob-side entry retaining at longwall top coal caving face, a new way for realizing intensive and high efficiency is put forward in thick seams.
介绍了45 1工作面运输平巷的地质采矿条件及沿空留巷支护技术在该巷的应用情况。
The application of the geology mining condition and the gob-side entry support technology in haulage roadway No. 451 face are introduced.
工程应用表明,锚杆支护巷道沿空留巷,有效切落了采空区侧顶板,减小了巷旁支护体载荷;
The project application cases showed that the gob-side entry retaining with bolt support could effectively cut the side roof of the gob-sides and reduce the loading of the support devices.
通过对大倾角工作面沿空留巷巷道破坏原因的分析,提出了相应的有效支护措施,收到了良好的技术经济效果。
Through analyzing on the reason of large tilt Angle face roadway destruction, corresponding efficient support measures are provided, and good technology economic results are made.
高水材料巷旁充填沿空留巷技术由于其在采煤生产中的独特优点而愈来愈受到采矿界的高度重视,并逐步得到推广应用。
Due to the unique advantages in coal mining, the back fill technology with high water material for rib in used gateway is getting more and more special attraction from the coal mining industry.
介绍了急倾斜中厚煤层回采工艺的具体计算数据,以及在实际施工中的应用效果;同时介绍了采后沿空留巷的施工方法。
The specific calculated data of mining technology in the steeply pitching medium thick coal seam and it's application effect in real construction are introduced.
通过理论分析、实验研究和现场试验,本文率先在国内初步建立了由大断面、小断面沿空留巷组成的综放沿空留巷技术体系。
With theory analysis, experiment research and spot test, this paper takes the lead in establishing technology system of gob-side entry retaining with large section or small one.
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滞后现象以及位移和压力增长的不同步现象。
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.
本文指出了我国现有沿空留巷支护存在的问题,分析了沿空留巷支架的工作状态和载荷构成,提出了沿空留巷支架的合理工作特性、工作阻力以及支护方式。
The problems related to the supports used in gateways maintained along the goaf-sides are discussed in this paper. The working state of the supports and constituents of the load are analyzed.
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.
由关键块的分析和数值模拟结果,确定了综放沿空小断面留巷的断面形状,给出了斜梁的合理支护设计。
The entry section shape and the reasonable design of inclined beam were determined according to the analysis of key blocks and the results of numerical simulation.
同时通过实测与模型计算相结合,验算了区段煤柱留设尺寸的合理性,并在此基础上探讨了沿空掘巷无煤柱开采的可行性。
Combined with field tests and numerical simulation, the size of section pillar is proved to be reasonable and the feasibility of driving without section pillar is also studied.
同时通过实测与模型计算相结合,验算了区段煤柱留设尺寸的合理性,并在此基础上探讨了沿空掘巷无煤柱开采的可行性。
Combined with field tests and numerical simulation, the size of section pillar is proved to be reasonable and the feasibility of driving without section pillar is also studied.
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