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- Analyses for Coupled Stress Field, Strain Field and Temperature Field of Adjacent Rock of Deep Mine Tunnel 深井巷道围岩应力场、应变场和温度场耦合作用研究
- deep mine tunnel 深井巷道
- Research on the Optimum Formulation of the Heat Proof Materials Used in the Deep Mining Tunnel 深井煤矿巷道隔热材料最佳配方的研究
- The cast and working capacity of driving and supporting tunnel increase several times over in mining deep mine.The subterranean heat problem gradually appears in the deep mine. 在深矿井开采中,巷道的开掘和支护成本、工作量都要成倍地增加,并且在深矿井中地热问题也逐渐显现。
- Rescuers recover a victim at the mine tunnel in West Sumatra, Indonesia, on Tuesday. 周二，搜救人员从煤矿中救起了一名受害者。
- coal mine tunnel under deep earth 深部煤矿巷道
- Deep mining first blighted the West Virginia landscape. 深挖矿井首先使弗吉尼亚州的风景遭到破坏。
- Being effected by air flow temperature,the use rule algorithm calculation high temperature mine tunnel ventilation parameter is able to come into being the specified error. 受风流增温的影响,使用常规算法计算高温矿井的巷道通风参数会产生一定误差,这会直接影响风网解算结果。
- The characters of deep mine are larger raw rock pressure,larger ore body plasticize,mine pressure severe appearance. 深矿井的特征是原岩压力大、矿体塑性大及矿山压力显现剧烈。
- The extraction of coal from these deep mines is expensive. 从这些深矿中取得煤是很昂贵的。
- Underground test showed that this system can control large do formation of deep mine to keep stability of its surrounding cock. 井下试验表明，高预应力、强力锚杆支护系统能有效控制深部巷道强烈变形，保持围岩稳定。
- Because of the weak borehole sealing and inadequate use of the initial free face, the higher investment and unsatisfactory blasting effect still exist in the mine tunnel excavation blasting. 由于炮孔堵塞不牢和初始自由面利用不充分,井下平巷的掘进开挖爆破仍存在投入大、爆破结果欠理想等问题。
- The effects of cage in mine tunnel on the cutoff frequency is analyzed by the finite-element method when the tunnel is regarded as a waveguide, and the numerical results are obtained. 把矿井隧道看作波导,利用有限元法分析了隧道中的罐笼对电磁波截止频率的影响,并得到数值结果。
- As increasing number of metal mines turn to deep mining,tunnel rock burst in nonpillar sublevel caving has grown into one of the major engineering geology problems in the field of mining. 随着金属矿山相继进入深部开采,无底柱分段崩落法巷道岩爆问题成为采矿领域中主要的工程地质问题之一。
- However,highway tunnel engineering quality inspection and evaluation standard is being dominated by mine tunneling method that obviously exists limitation and obsolescence. 然而在公路隧道质量控制和管理方面仍沿用按矿山法制定的质量检验评定标准，显然存在局限性和陈旧性。
- After entering deep mining in Fujia mine, the orebody becomed small, stope layer transition increased, and productive capacity decreased. 富家矿转入深部开采以后,矿体变小,采场转层次数频繁,生产能力降低。
- Most of large and middle scale open-pit mines in China have reached deep mining. 摘要我国的大多数大中型露天矿山已经或即将进入深部开采。
- Loss of Electromagnetic Energy in Mine Tunnel 矿井隧道中电磁场能量的损耗
- With mining capacity continuous increase and with mine entering into deep mining stage,the grade of crude ore and the grindability of ore decrease that raise the cost of grinding. 随着矿山规模的不断扩大和进入深部开采,矿石的原矿品位和相对可磨度逐渐降低,磨矿成本随之升高。
- JIANG Yaodong, ZHAO Yixin, LIU Wengang, et al.Investigation on three-dimensional model of instability of translatory coal bumps in deep mining[J]. 刘文岗;姜耀东;周宏伟;等.;冲击倾向性煤体的细观特征与裂纹失稳的试验研究[J]
