The case of accidents, the proposed blasting mining roof caving face the basic requirements for control and prevention of incidents of roof effective measures, must learn.
该文通过事故案例分析，提出了炮采放顶煤工作面顶板控制的基本要求和预防顶板事故发生的有效措施，有一定借鉴意义。
The smelter, owned by Met-Mex Peñoles, part of a big Mexican mining group, ran without a roof from 1901 until 2000, blanketing the surrounding area with layers of fine black powder.
这家冶炼厂归Met-Mex Peñoles所有，它是一个大的墨西哥矿业集团的一部分，1901年建厂时它连厂房屋顶都没有，到2000年该厂把周围的地区盖上了一层层细的黑色粉末。
Roof falling, floor heave of roadway and pillar failure are important problems of rock mechanics in mining process.
顶板冒落、巷道底鼓和矿柱破坏是采矿过程中的重要岩石力学问题。
Provided that, roof structure 's stability analysis of ShenDong Mining Field is built on the static relation, there will be much different from the engineer practice.
若将神东矿区顶板结构的稳定性分析建立在“静态”关系基础上，这与其工程实践有较大出入。
Roof fall accident is one kind of dangerous accidents happened at underground mines and underground pressure management is the main task of mining safety management.
冒顶片帮事故是地下矿山危害最为严重的事故，矿山地压管理是地下开采矿山安全管理的重要任务。
Roof-contacted filling is one of the critical techniques for this mining method.
接顶充填是该采矿法的关键技术之一。
Several cases of roof bolting application in various mining and geological conditions were described.
在不同的采矿地质条件下，进行了多种顶板锚固应用研究。
In the future, the efforts to research and deploy the mining methods, modify and perfect the roof support techniques and improve the mechanization should be made in the mining of gold deposits.
今后在金矿床开采中应致力于新的采矿方法研究和推广应用，改进和完善护顶技术，提高机械化水平。
In the process of Shanxi formation seam mining in Shaqu Colliery, the seam roof and floor sandrock aquifers constitute the direct discharge aquifers.
沙曲煤矿山西组煤层开采过程中，煤层顶底板砂岩含水层构成煤层开采时的直接充水含水层。
Based on the site actual measurements, the inversion analysis on the destroy range of roof and floor by the combined mining of thin seams was made by using numerical modeling.
以现场实测结果为基础，利用数值模拟与反演方法分析了薄煤层联合开采的顶、底板破坏范围。
The increase in mining height makes the weighting of immediate roof become more violently, which requires that the support strength should increase accordingly.
由于采高加大使基本顶来压更加强烈，支架的支护强度更要加大。
The development and successful application of mobile roof support make ready a new type supporting equipment for mechanized mining of short-wall faces.
履带行走式液压支架的研制与成功应用，为短壁工作面机械化开采提供了一种新的支护设备。
The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate.
本文将倾斜长壁仰斜、俯斜开采的老顶岩层视为倾斜弹性板。
Through the detail introduction on optimization of raining method in Shandong Wangcun Bauxite Mine, this paper puts forward a new mining method——longwall caving with artificial roof pillar.
通过对山东王村铝土矿采矿方法优化的介绍，提出了一种新的采矿方法——人工顶柱无底柱长壁式崩落法。
During the process of underground mining, the stabilization of stope roof is the basement of normal and productive mining.
金属矿地下开采过程中，采场顶板稳定是矿山正常、高效回采的前提。
Moreover, there are some other influencing factors such as: thick loose bed, surface mining degree, impel speed of working face, coal mining and roof manage methods, mining procedure and time.
此外，厚松散层、地表采动程度、工作面推进速度、采煤方法与顶板管理方法、开采程序及时间因素等对采场覆岩空间结构均有一定影响。
Analyses factors that affect cover caving ability of roof coal in sublevel caving mining method.
分析了放顶煤开采顶煤冒放性的影响因素。
The constant temperature, static state corrosion resistant test and results of mining glass fibre net false roof materials under analog working conditions and special working conditions are presented.
本文介绍了矿用玻璃纤维网假顶材料在模拟自然工况和特殊工况条件下的恒温、静态耐腐蚀试验及结果。
Take an underground copper mine as studying object, on which the surface has to be protected, the mining method of sublevel filling method with roof reconstructing is studied.
以某地下铜矿为研究对象，研究了地表要求保护的前提下极破碎矿体的顶板再造上向分段充填采矿法。
Technology of continuous mining-induced caving roof is the organic combination of continuous mining technology and induced caving roof technology.
连续采矿顶板诱导崩落技术是连续采矿技术和诱导崩落技术的有机结合。
According to the studying and acquainting with the direct roof control of Datong mining area, this paper offers a kind of simple and workable classification for direct roofs.
根据作者对大同矿区直接顶板控制的研究和了解，提出了一种简单易行的直接顶分类方法。
The roof in working areas is simplified as rock beam, the maximum tensile stress and limited span of rock beam are important in mining engineering.
将采场顶板简化为岩梁模型，岩梁的最大拉应力及其极限跨距是采矿工程涉及到的两个重要参数。
The paper described in detail the high undercover large mining coal face roof control the basic requirements of the roof control and the strengthening of specific measures.
该文详细叙述了大采高卧底煤工作面顶板控制的基本要求和加强顶板控制的具体措施。
By field observation and simulating test of shallow seam longwall mining, the phenomenon of main roof asymmetry breaking is discovered during the first weighting.
依据典型浅埋煤层工作面的实测和模拟，发现了采场老顶初次破断的非对称现象。
By field observation and simulating test of shallow seam longwall mining, the phenomenon of main roof asymmetry breaking is discovered during the first weighting.
依据典型浅埋煤层工作面的实测和模拟，发现了采场老顶初次破断的非对称现象。
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