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- The simulation experiment and theoretical analysis show that backdraft is able to break out in the underground roadway network fire. 摘要采用实验模拟和理论分析的方法证明了煤矿井巷火灾过程中同样存在回燃现象。
- Based on rock engineering system(RES) theory,a full coupling analysis method and optimization design idea for the stability problem of underground roadway engineering are put forward. 针对地下巷道工程稳定性问题,基于岩石工程系统(RES)理论,提出了全耦合分析法及优化设计思想。
- Keywords penetrative cranny;underground roadway;unstability; 贯通裂隙;地下巷道;失稳;
- The Development and Application of Underground Roadway Waste Packing Unit 井下巷道矸石充填设备的研制与应用
- In view of the brittleness of the surrounding rocks of underground roadways, it is best that the contour of roadways takes the shape of a pressure curve. 正>目前煤炭工业中地下巷道维护所用的支护形式,不外被动支护(围岩破坏后作用于支架,如砌(石旋);
- With the increasing depth of coal mining, underground roadways will be a higher environment of geo-stress, especially in the areas where there have happened intense activities of geological structure. 摘要随着煤矿开采深度的不断增加,井下煤矿巷道将处于更高的地应力环境中,尤其在地质构造复杂的地区,井下巷道支护及稳定性更加难以保证。
- With the increasing depth of coal mining,underground roadways will be a higher environment of geo-stress,especially in the areas where there have happened intense activities of geological structure. 随着煤矿开采深度的不断增加,井下煤矿巷道将处于更高的地应力环境中,尤其在地质构造活动强烈的地区,井下巷道支护及稳定性更加难以保证。
- Principle of Measuring Broken Rock Zone Around Underground Roadway with GPR and Its Application 用地质雷达测试围岩松动圈的原理与实践
- Design procedures and application study of prestressed bolting support for underground roadway 煤巷预应力锚杆支护设计方法及其应用研究
- Telescopic long bolts to be applied for supporting the largely deformed underground roadway 可缩性长锚索支护在大变形巷道中的使用
- A raised roadway, as across water or marshland. 堤道加高的行道,如穿过水洼或沼泽的道路
- Method for Setting Out the Center-line of Underground Roadway under Bump Pressure 对井下大压力巷道中线标定方法的探讨
- Don't stop on the roadway; move in to the side. 别在车行道上停留;到边上来。
- Methods of bolting and grouting support for underground roadway with dynamic pressure in incompetent stratum 软岩动压巷道锚杆注浆支护方式探讨
- Recently they have laid an underground pipeline. 最近他们铺设了一条地下管道。
- The missile is delivered from underground. 这种导弹由地下发射。
- They were suspected of underground activities. 他们被怀疑进行地下活动。
- Moles stay underground most of the time. 钱鼠大部分时间住在地下。
- He went underground to avoid capture. 他转入秘密工作以免被捕。
- The cavers discovered a vast underground chamber. 探穴人发现了一个地下大洞穴。