| 1. | Thermal stress analysis of shaft in melting stage of frozen wall 冻结壁融化阶段井壁温度应力研究 |
| 2. | Elastic and plastic model for calculattion of frozen wall stress and displacement field 弹塑性本构模型计算冻结壁应力场和位移场 |
| 3. | Nonlinear model calculating frozen wall stress and displacement fields in shaft excavation 井筒开挖下非线性冻结壁的应力场和位移场计算 |
| 4. | In freezing , control of thickness of the freezing wall is of great importance 在冻结法施工过程中,如何控制冻结壁的厚度是一个非常重要的环节。 |
| 5. | Moreover , relation between temperature of cold media , freezing time and the thickness of freezing wall is analyzed 此外,还分析了冷媒温度、冻结时间和冻结壁厚度的关系。 |
| 6. | The study demonstrated that the application of finite method analysis can predict the temperature field development of frozen tube wall , and it can provide reference data for performance of freezing engineering projects 研究表明:应用有限元方法分析冻结温度场,能很好地预测冻结壁温度场发展,可为冻结工程信息化施工提供参考。 |
| 7. | In the paper , the theory of thermal transport in porous media is used to establish the mathematical model of the development of the frozen wall considering the groundwater flow , which is used to research the effects of the groundwater flow on the formation of frozen wall with numerical method 采用多孔介质热运移理论建立了考虑地下水流时冻结壁发展的数学模型,可用于数值模拟研究地下水流对冻结壁形成的影响。 |
| 8. | On the basis of a case study regarding freezing engineering project from a coal mine , huainan , the frozen wall thickness , average temperature , freezing time of an oblique frozen tube axe simulated using large - scale non - linear finite element computational procedure adina numerical simulator , resulting in the data coincided with site measured 以淮南某煤矿冻结工程为研究背景,应用大型非线性有限元计算程序adina模拟冻结管偏斜条件下的冻结壁厚度、平均温度与冻结时间等,结果和现场实测十分接近。 |
| 9. | The principle of artifical freeze sinking and its advantages in engineering application are introduced ; and combining with field cases , a definite introduction is made on the computational method of freeze walls in mine construction ; moreover , how to predict the thickness of freeze walls by using computer simulation is briefly introduced 摘要介绍了人工冻结法的原理及其工程应用中的优点,并结合工程实例对矿井施工中冻结壁厚度的计算方法做了一定的介绍,并简略介绍如何来用计算机模拟来预测冻结壁的厚度。 |