This paper introduces the application about anchor cable jetting combined supporting in broken soft rock drift.
重点介绍了锚索喷注联合支护在碎胀软岩巷道掘进中的应用。
The system model based on computer aided design and expert system techniques is established through analytical studying on the engineering data of rock drift tunneling.
通过对岩巷掘进工程资料的分析研究，建立了基于辅助设计和专家系统技术的系统模型。
So we construct for the background by the Second Shizuishan Mining, tunneling of the coal road and rock drift, carried on research to single tunneling technique of the horizontal tunnel.
本文以石嘴山二矿煤、岩巷的掘进施工为背景，对水平巷道单巷掘进技术进行了研究。
The paper outlines the situation that Sanxiao experience is popularized for rock drift excavating also its economic efficiency in aspect of promoting driving rate of advance and decreasing cost.
总结了岩巷掘进推广应用“三小”的情况和在提高单进、降低掘进成本等方面取得的经济效益，提出了存在问题和建议。
This paper introduces driving rock drift with minor diameter bit, minor diameter cartridage and minor diameter bolt, it can realize smooth blasting, roadway speed is raised, driving cost is reduced.
在岩巷掘进过程中使用小直经钻尖，小直径药卷和小直径锚杆，可实现光面爆破，有效提高成巷建设，降低掘进成本。
This region marks where heat rising from the leading edge of the plume is pushing rock up, as tectonic forces cause the plume to drift eastward.
这个区域标志来自火山柱主要边缘的热度正在把岩石往上拱，如构造作用力导致火山柱向东方漂移。
Deficient floor slope Angle of an ore body often needs to dig a drift (or access) in its footwall rock when adopting non-pillar sublevel caving following-vein excavation.
采用沿脉布置的无底柱分段崩落法，当矿体底板倾角不足时，需要在下盘岩石中开掘进路。
If clouds are beings, and beings are clouds, are we not all well advised to drift, to feel the wind tucking us in here and plucking us out there? Are we such rock-hard bodily lumps as we imagine?
若浮云如人，人亦如浮云，我们是否都应该飘，感受风的力量，让我们一时扎根这里，一时又把我们拔起吹走？难道我们真的就如自己想像中的那样稳如磐石吗？
To overcome the difficulty of unstability of orebody and surrounding rock, the test of flat-back cut-and-fill drift mining is carried out.
针对凡口铅锌矿狮岭顶板矿体和围岩极不稳固的牲，进行了机械化上向进路分层充填采矿工艺的试验研究。
The feasibility of testing rock deformation by the optical fiber grating technology is verified in this paper. The drift can reflect the deformation.
本论文通过实验验证了光纤光栅技术在测试岩层变形时的可行性，波长的偏移可以反映模拟岩层的变形规律。
When driving and maintaining a drift in loose and fractured host rock, carrying capacity of host rock tends to be poor and underground pressure be intensifying.
在松散破碎围岩条件下进行巷道开掘及维护时，往往会出现围岩承载能力差、矿压显现剧烈等一系列问题。
With the increasing of mining depth, the roof-floor lithology of the tunnel shows the characteristics as soft rock, normally resulting in the drift floor-heave.
随着矿井采深的增加，巷道顶底板岩层表现出软岩特性，常导致巷道形成严重的底臌。
The shape and energy distribution of direct wave is mainly influenced by drift, while the energy distribution of reflected wave is influenced mainly by the interface between coal and rock.
巷道对各道直达波能量分布及波列形状有明显影响；煤岩分界面主要影响反射波能量分布。
Then, it is to remain some blasted ore to block the drift outlet at the last mining level to prevent the impact of air flows induced by the rock falling.
保持最下一层空场出矿分段的进路端部出矿口不敞空，防止冒落冲击危害。
Then, it is to remain some blasted ore to block the drift outlet at the last mining level to prevent the impact of air flows induced by the rock falling.
保持最下一层空场出矿分段的进路端部出矿口不敞空，防止冒落冲击危害。
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