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- freezing shaft lining 冻结井壁
- Fit and inspect shaft line of M/E. 4主机轴系安装报验合格。
- Keywords thick alluvium,freezing shafting lining,stability analysis,vertical additional force,dynamic observation, freezing pressure; 深厚表土;冻结立井井筒;稳定性分析;附加力;动态监测;冻结压力;
- Keywords mining engineering;super-deep alluvium;frozen shaft lining;inner steel plate cylinder;high strength reinforced concrete;model experiment; 采矿工程;特厚表土层;冻结井壁;内层钢板筒;高强钢筋混凝土;模型试验;
- The security of freezing wall is the key problem of freezing shaft sinking in deep alluvium. 冻结壁的安全性是深厚冲积层中冻结凿井的关键问题。
- frozen shaft lining 冻结井壁
- Fracture accidents of vertical shaft lining in aquifer are introduced. 研究了表土段立井井壁的破裂情况；
- 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。
- With the geometrical size and temperature exchange value of the mine shaft, the possibility of the cracking on the mine freezing shaft would be increased with the depth of the overburden. 在井筒的几何尺寸及温度变化值确定的情况下,冻结立井随着表土段深度的增加,破裂的可能性在随之增大。
- Aiming at the deep alluvium support of coal shaft, the composite shaft lining of high strength concrete and double steel cylinders is presented. 针对煤矿立井井筒深厚表土层的支护,提出了采用双层钢板高强混凝土复合井壁结构。
- The upper shaft lining of No.1 blast furnace for smelting high TiO2 bearing vanadic titanomagnetite is repaired by forcing and gunning methods. 对冶炼高钛型钒钛磁铁矿的一号高炉炉身上部进行了压入和喷补造衬。
- Research on freezing pressure in deep thick alluvium is in great need with the increase in depth of frozen shaft. 随冻结法凿井深度的增加,我国对深厚冲积层冻结井冻结压力分布的研究需求已经十分迫切。
- Based on the test results, the design method of vertical bearing capacity of the retractable drilling shaft lining was obtained. 由此提出了可缩性钻井井壁竖向承载力的设计方法。
- Huainan Banji coal mine introduces precasting in Main Shaft and ventilation shaft,and drilling shaft lining is precast construction in ground. 淮南板集煤矿主井与风井采用钻井法凿井,钻井井壁在地面预制施工。
- The shear character in the interface between soil and structure in high stress is one of key research in shaft lining fracture theory. 高应力下土与结构接触面剪切特性的研究是当前井壁破裂理论研究的关键之一,本文对高应力作用下的实验仪器和实验过程做了简要的介绍。
- The fuzzy integrative evaluation theory is used to set up the fuzzy integrative evaluation method of shaft lining under complicated loads in thick alluvium. 在此基础上,利用模糊评价理论,建立了深表土复杂条件下的井壁可靠性模糊评价方法。
- Aiming at the fractured mechanism of mine shaft lining under the condition of stratum subsiding, a new type of retractable drilling shaft lining structure was proposed. 针对地层沉降条件下煤矿立井井壁的破坏机理,提出了一种新型可缩性钻井井壁结构。
- high - strength freezing shaft wall 高强冻结法井壁
- According to calculations, it was necessary to adopt a new type of structure of the shaft lining with vertically yieldable segments for reason of safety. 分析计算表明：应采用竖向可缩新型井壁结构防止井壁因冲积层疏排水而破坏。
- Combine the numeric calculation medal of concrete hydration heat,using ADINA finite element program ,numerically simulates the temperature field of frozen wall and shaft lining. 结合混凝土水化热情况下冻结壁井壁温度场数值计算模型的建立方法,运用有限元软件ADINA建立数值模型,进行冻结壁温度场计算,得出冻结壁温度场分布特性。
