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- Keywords shaft wall fracturing;drawdown of piezometric level;additional stress;Yanzhou coal mining area; 井壁破裂;水位压降;附加应力;兖州矿区;
- Keywords shaft wall;rupture;horizontal force;base pressure;aquifers/ seepage deformation;non-homogeneous;earth pressure; 井壁;破裂;水平力;底部压力;含水层/渗透变形;不均匀;地压;
- Disposal of shaft wall accretion and hearth accumulation of 2500 m~3 BF at Maanshan Iron & Steel Co.,Ltd. 马钢2500m~3高炉炉墙结厚与炉缸堆积的处理
- The stress formula of shaft wall is obtained, and an example is persuasively analyzed. 分析研究表明导致立井壁破坏的主要原因是井壁负摩擦力和温度应力。
- The distributing rule of additional forces of compressible shaft wall is given by numerical analysis and model test. 摘要通过数值分析和模型试验研究，揭示了竖向可缩性井壁附加力分布规律。
- The contrast of theory calculation and test results verifies the rationality of joint rigidity model of prefabricated arc board of freezing shaft wall. 通过理论计算与试验结果的对比，验证了冻结井预制弧板井壁接头刚度模型的合理性。
- Variety rules of concrete strain of outer shaft wall were carried out based on in-situ measurement during freeze sinking of Longgu Mine auxiliary shaft. 摘要通过龙固副井冻结凿井期现场实测，获得了龙固副井外层井壁混凝土应变的变化规律。
- The paper inquires into the function princile and influnce factors of pressure-releasing slot in shaft wall and analyzes its application results in harnessing cracred shaft wall. 探讨了井壁卸压槽的作用机理及影响因素，分析了卸压槽在破裂井壁治理工程中的应用效果。
- The setting optimization principle of compressible tie-in is brought forward;and it has important guidance meaning to design compressible shaft wall reasonably. 提出的可缩接头设置优化原则，对科学、合理地设计竖向可缩性井壁具有重要的指导意义。
- Keywords shaft lining;mechanics model;rheidity; 井壁;力学模型;流变性;
- Based on the discussion of hydrogeological condition of the fouth aquifer of Cenozoic Erath-em and the weathered zone of bedrock in Linhuan mining area, the cause of shaft wall damage is analysed. 本文着重讨论了临涣矿区新生界松散层中第四含水层(以下简称四含)及其下基岩风化带的水文地质条件.
- Keywords shaft kiln cement;compoud mineralizer; 立窑水泥;复合矿化剂;
- And the properties and amplitude of stress of rock mass in the back of shaft wall at the bottom are related with l ayout of working face, mining sequence, and distance of the working face to shaf t. 观测结果表明：井筒上部壁后岩体在铅垂方向上受张应力影响，而井筒底部壁后岩体应力的大小和性质与工作面的布置方式、开采顺序以及井筒与工作面的相对位置有关。
- Keywords shaft;grouting hole;face pregrouting; 井筒;注浆孔;工作面预注浆;
- DISCUSSIONThe diagnosis of orbital wall fracture can be done by clinical manifestation and imagin examination. 可根据临床表现及影像学的系统检查作出眶内壁骨折的诊断。
- Plumb in underground is made in the middle of the interstice between cage and shaft wall using total station laser plumbing instrument after setting up stations at the two temporary points. 分别在两个临时点摆站，利用全站仪激光对点器将其点位在罐笼与井壁间隙中间投于井下。
- Keywords Shaft kiln Road cement Mineralizer; 立窑;道路水泥;矿化剂;
- However, after the wall has been built, the thick-bedded clay results in enhancement of the strength of shaft wall, and the development of the lateral friction resistance during consolida... 成井后,却是两类特凿井壁强度增强的部位,也是固结沉降时形成井壁侧摩阻力的主要部位。
- Keywords shaft steelwork;testing;vibration signal; 罐道;测试;振动信号;
- The presence of intraorbital air indicates paranasal-orbital communication that results mainly from medial wall fracture. 藉由擤鼻涕、嗽等动作，引起副鼻窦压力上升，空气会因压力驱使经由鼻窦－框之间破洞进入眼框造成眼框气肿。
