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- The grouting and bolting technique is designed based on analysis of surrounding rock in roadway and actual conditions in spot. 在分析巷道围岩特性的基础上,依据现场实际情况,提出锚注加固技术治理方案。
- surrounding rock in roadways 巷道围岩
- In view of the mining affecting the upward-downward airways and accessorial uphill of mining face 4222 (3) in xieyi coal mine, in-situ survey of surrounding rock in the three roadways was done. 摘要针对谢一矿4222(3)采煤工作面的上、下风巷和辅助上山受采动影响情况,对三条巷道的矿压显现进行了现场测试。
- Analyzing to the phenomenon of underground pressure and the stress of surrounding rock in roadway protecting pillar 大煤柱护巷矿压显现规律及围岩应力实测分析
- Regular Patterns and Analysis of Deformation of Surrounding Rock in Roadway Supported By Permanent Support Combination of Bolting Wire Mesh and Cable Anchor 永久锚网带索联合支护巷道围岩变形规律及分析
- The drilling fluid may interact with the surrounding rock in other ways. 钻井液可能会以其它方式与周围的岩石相互作用。
- In the river valley region,discal phenomena of drilling cores and laminated exfoliation of surrounding rock in the exploration tunnels are obvious. 河谷下切引起的应力集中是显著的 ,河谷地区许多构造形迹及地下工程中出现的若干围岩稳定问题都与此有关。
- The results show that the rare earth elem met s characteristic of ore is highly similar to that of surrounding rock in gold ore of Yunnang Mengman. 结果表明,矿石与围岩的稀士元素总体特征非常相似,说明两者稀士来源基本一致。
- It is found that the main problems are the uncoupled strength and the uncoupled regidity between the support and the surrounding rock in the soft rock. 文中认为目前煤矿软岩巷道支护存在的主要问题是支护体与围岩之间的强度或刚度的不耦合问题。
- Through numerical analysis, the stability of surrounding rock in two sides of deep roadway under the conditions of supporting and grouting in the floor was studied. 摘要通过数值计算,研究了底板支护和注浆加固底板后深部软岩巷道两帮围岩的稳定性。
- Therefore, it shows that the uncertaity measurement model is effective, available and can be applied to classification of tunnel surrounding rock in underground engineering. 且方法科学合理,意义明确,为隧道围岩分级判别提供了一种新思路。
- Lithostatic pressure is the stress exerted on a body of rock in the earth's crust by surrounding rock, which increases with depth below the earth's surface. 岩体静压是地壳内部岩体受周围岩石施加的应力,随地表下深度的增加而增加。
- Aiming at the characteristic of the distortion of the extremely hard maintained roadway, the numerical analysises were made on surrounding rock stress and displacement in roadway with FLAC program. 针对极难维护放顶煤回采巷道的变形特点,依据FLAC程序对不同支架形式的巷道围岩应力场和位移场进行了数值模拟。
- Most of the rock in this mountain is shale. 这座山上大部分的岩石都是页岩。
- Stress shell, which bears and pass load of overlying strata, is primary supporting body.The stress in skewback of stress shell forms abutment pressure of surrounding rock in vicinity of working face. 应力壳承但并传递上覆岩体荷载和压力,是最主要的承载体,应力壳拱脚处应力形成采场四周围岩支承压力。
- By means of similarity-simulation test the authors have studied the displacement law of surrounding rock in coal roadway supported by the roof trusses,bolt-mesh shoterete and H-beam steel. 通过相似模拟试验,研究煤巷采用组合桁架锚杆、锚架网和工字钢支护时的变形玻坏规律,由此对比分析探讨组合桁来锚杆的支护效果。
- This system is applied to analyze the stability of surrounding rock in diversion tunnel of the Daliushu Hydro Project.The application shows that the system is effective and practical. 该评价方法被应用到黄河大柳树水电站导流洞围岩稳定性综合评价中,其结果得到了实际工程的检验,说明该方法有一定的适用价值。
- Using the decay time function of ADINA, the deformation law of the surrounding rock in the process of the new Austrian tunneling method;and the accuracy of the analytical results is improved. 利用ADINA有限元软件中的时间衰减功能真实地模拟了新奥法施工过程中围岩变形规律,提高了结果分析的精确性。
- There are two types of rocks in this area. 这个地区有两种类型的岩石。