freezing pipe

The break reason analyze and processing technique of Zhangji center wind well freezing pipe;

张集中央风井冻结管断管原因分析及处理技术

The main reason is that inappropriate design of mechanical model for a freezing pipe led to errors in calculated stress data.

煤矿立井冻结法施工中 ,冻结管断裂一直是一个未能得到很好解决的国际性课题 ,主要原因是冻结管的力学模型设计不合理 ,进而导致应力计算结果错误。

The prevention of freezing pipe breaks in deep shaft freezing has become a key technique in mine construction in China.

防止冻结管断裂在国内深井冻结中已成为关键技术。

On the basis of parameters of a practical project,and consideration of the phase change of water content in soil and the variation of freezing temperature,the features of the temperature field in frozen wall with and without deflection freezing pipes is analyzed with the Finite Element Calculation Software.

冻结法工程中的造孔总存在一定的偏斜,以工程实际参数为基础,考虑了土层中水的相态变化和冻结温度随冻结时间变化等因素,利用大型有限元软件,对冻结孔随机偏斜和无偏斜条件下冻结壁的形成及其温度场特征进行详细地分析,得出了冻结管偏斜下,冻结孔交圈时间、冻结壁厚度、冻结壁平均温度等主要技术参数,提出了偏斜条件下冻结壁平均温度的计算公式,对深井冻结设计和多排冻结管温度场的研究有重要的参考价值。

By considering deflection of freezing pipes and using the FEM method,the three-dimensional temperature field of the connecting passage of Shanghai Eas.

考虑了冻结管偏斜布置的情况,利用有限元方法对上海市复兴东路隧道联络通道进行了三维温度场模拟。

Theoretical analyses and simulatingtests on stresses in freezing pipes were carried out, andthe following results were obtained.

对冻结管受力的理论分析和模拟试验研究表明，在安装阶段，冻结管的应力很小，可略去不计；在积极冻结阶段，受管材冷缩、冻土冷缩和冻土冻胀的作用，冻结管轴向受拉（压）并向井外弯曲在该阶段后期，纯拉（压）应力σ１由正最大值向负值转变，且数值变小；而纯弯曲应力σｗ则趋于稳定，其值虽较大但对后期冻结管的安全无害。

Analysis on deformation and stress of freezed wall and freezing tube with elastic foundation beam theory;

基于弹性基础梁理论的冻结壁和冻结管变形与受力分析

The bending strength of a freezing tube was studied by integral bending test.

通过冻结管整体抗弯试验 ,表明冻结管破裂失效的主要原因是接头的损坏 ;而内衬管对焊接头形式提高了接头强度和冻结管的变形能力 ,较好地解决了作为结构物和密封容器的冻结管与冻结壁的协调变形问题。

Cement injection of perforating holes in a frozen pipe is a wholly new technology for consolidating shaft wall rock and stopping water of frozen shafts in coal mines.

冻结管射孔注浆是在对石油输油井射孔技术和地面注浆技术进行研究的基础上 ,开发出的一种用于煤矿冻结井筒围岩加固和堵水的全新技术。

The measures to prevent frozen pipes from rupturing are choosing proper materials, increasing the wall thickness, decreasing the diameter, improving the joint quality of frozen pip.

防止冻结管断裂的措施为选用合适的冻结管材料,增大冻结管壁厚度,减小冻结管直径,提高冻结管接头质量,控制掘进段高。

On the reasons for brine intake Fractured and Ways to Prevent Brine Intake Fractured

再论冻结管断裂原因及防止断管的途径

Analysis and Prevention of Freezing Tube Breakage in Deep Shaft Freezing Sinking;

深井冻结凿井冻结管断裂原因分析及防治技术

Research on Calculation Method for Temperature Field of Frozen Soil Considering Irregular Layout of Freezing Pipes;

任意冻结管分布下冻土温度场计算方法研究

On the reasons for brine intake Fractured and Ways to Prevent Brine Intake Fractured

再论冻结管断裂原因及防止断管的途径

A research on frozen wall temperature field thawing characters under multi-coil tube freezing

多圈管冻结下冻结壁温度场融化特性的实测研究

Research on Performance of Frost Formation Process on the Coil of Cold Wall in Vacuum Freeze-Drying Machine;

冻干机冷阱盘管表面结霜特性的研究

Research on the freezing wall temperature field of three-circle pipes with partical heat preservation in deep mine shaft

深井三圈管局部保温冻结温度场研究

Strict management will be exercised over the use of forestland, and requisitioning of forestland will be blocked for one year.

要严格实施林地用途管制，冻结征占用林地一年。

Experiment of the partial charged ice-on-coil with aerated discharging

不完全冻结式冰盘管充气融冰的实验研究

Influence of Heat Emission of the Segments on the Construction of the Tunnel Cross Passage by Artificial Freezing Method;

管片散热对隧道联络通道冻结法施工的影响

Project Management of the Freezing Construction of Side Channel in Shanghai Metro

上海地铁旁通道冻结法施工中的项目管理

Simulation Research on Soil Freezing Temperature Field Surrounding Ground Heat Exchanger

地埋管换热器周围土壤冻结温度场的模拟研究

cryogenic period

【地质】低温冻结期

the frozen North; frozen pipes; children skating on a frozen brook.

冰封的北国；冻结了的水管；孩子们在结冰的小溪上溜冰。

"Cell damage, tissue dehydration, and oxygen depletion caused by freezing and thawing can lead to Blood-cell disruption, clotting in capillaries, and gangrene."

因冷冻和解冻引起的细胞损伤、组织脱水、缺氧会导致血红细胞瓦解、毛细管内结块、坏疽。

Multi freezing air orientation, freezing equably.

多重变换冻结气流方向，冻结均匀。

Freezes and unfreezes split in active window

冻结或取消冻结活动窗口的拆分区域

A Non-linear Number Analysis of the Frozen-wall;

冻结凿井时冻结壁的非线性数值分析

Water expands on freezing, as can be deduced form occasional breaks in water pipes in severe winters.

水结冰时会膨胀，这可由严冬季节水管有时会冻裂的现象推论出来。