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- Numerical Simulation Research of Wall Rock Stability of Preparatory Workings at Chengchao Iron Mine 程潮铁矿采准巷道围岩稳定性数值模拟研究
- Investigation on the Abandoned Air-Raid Shelter and Study on the Stability of Wall Rock 废弃人防地道的综合勘察及围岩稳定性研究
- Keywords gently inclined coal seams;stability of wall rock;rockbolt shoring design; 缓倾斜煤层;围岩稳定性;锚杆支护设计;
- stability of wall rock 围岩稳定
- Consequently, the evaluation of wall rock"s stability is a momentous science research correlated with expressway"s roading. 因此,围岩稳定性评价是与高速公路隧道施工和运营密切联系的一项极为重要的研究内容。
- In flat dip layer, the seam thickness control the stability of the wall rock, the thick-bedded hard rock is stable than the thin-bedded hard rock. 岩层厚度在缓倾斜时对围岩稳定起控制作用,厚层硬岩整体稳定性好于薄层状硬岩。
- The stability of stope wall rock and obsturator is a key issue for the safty of the second stage minimg in Jinchuan no.2 digging. 金川二矿区深部开采过程中采场围岩及充填体的稳定性是二期安全生产中的关键技术问题。
- As we can conclude from practical experiences, the stability of tunnel wall rock is determined by geologic quality, ground stress and timbering technology. 实践证明:巷道围岩稳定性是由围岩的工程地质特征、地应力和支护控制技术决定的。
- Effects of Wall Admittance Changes on Aeroelastic Stability of Turbomachines. 壁导纳变化对涡轮机气动弹性力学稳定性的影响。
- The oecurrence of tourmalinite is the same as that of wall rock,but the obvious feature of the tourmalinite is microlaminated structure. 主要成分为微粒镁电气石,其次有石英、长石,少量粘土矿物、毒砂和黄铁矿。
- It is concluded that location of foot-wall drawing points are closely related to orebody dip, cut-off grade and ore grade of wall rock. 认为下盘放矿点位置与矿体倾角、放矿截止品位、围岩含矿品位有着密切的关系。
- This paper presents results of the wall rock resistance, the lining-stress, distortion and stability of XinDaoGou double vault tunnel along Beijing-Chengde highway using the finite element method. 摘要本文以京承高速公路新道沟连拱隧道为实例,应用有限元数值方法对连拱隧道二次衬砌的围岩抗力、应力、变形及其稳定性等问题进行了模拟与分析。
- The seep loading is one of the main loadings that affect the stability of the wall rock, so a simplified model is presented to illustrate the effect of the seep loading"s randomness. 渗流荷载是地下洞室围岩稳定的主要荷载之一,存在着不确定因素,本文讨论了一个简化模型可方便地计入渗流荷载随机性的影响。
- In the test of the large diameter longhole mining of No.91 orebody at Tongkeng mine,the stress and the displacement of wall rock at the stope drilling chamber were monitored. 在铜坑矿91号矿体大直径深孔采矿法试验过程中,对采场凿岩硐室围岩的应力状态和岩移进行了监测。
- Again, according to analyze wall rock change along with working face advancing under caving, the paper gains three different phases of wall rock transmogrification. 再次,分析了采动影响下沿空巷道随着工作面的推进围岩变化情况,得出了围岩变形的三个不同阶段;
- DING Wu-xiu,CAI Li-ming,CHENG Jian-ping,et al.Research on configurable characteristic of wall rock regolith of Longmen Grottoes in Luoyang[J].Luoyang Univ Trans,2003,(4):79-82. [3]丁梧秀;蔡丽朋;陈建平;等.;洛阳龙门石窟围岩风化层结构特性研究[J]
- Stability evaluation of wall rock 围岩稳定性评价
- The government has taken a measure to maintain the stability of prices. 政府已经采取了措施以确保物价稳定。
- Viscoelastic stability of cavity bedding wall rock 顺层围岩地下洞室的粘弹性稳定