Average temperature calculation for straight single-row-piped frozen soil wall

被引:11
|
作者
Hu, XiangDong [1 ,2 ]
She, SiYuan [1 ]
Yu, RuiZhi [1 ]
机构
[1] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China
[2] Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China
来源
SCIENCES IN COLD AND ARID REGIONS | 2011年 / 3卷 / 02期
基金
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词
artificial ground freezing; single-row-piped freezing; frozen soil wall; average temperature; equivalent trapezoid method; equivalent triangle method; Bakholdin's solution;
D O I
10.3724/SP.J.1226.2011.00124
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
The average temperature of frozen soil wall is an essential parameter in the process of design, construction, and safety management of artificial ground freezing engineering. It is the basis of calculating frozen soil's mechanical parameters, further prediction of bearing capacity and, ultimately, safety evaluation of the frozen soil wall. Regarding the average temperature of single-row-piped frozen soil wall, this paper summarizes several current calculation methods and their shortcomings. Furthermore, on the basis of Bakholdin's analytical solution for the temperature field under straight single-row-piped freezing, two new calculation models, namely, the equivalent trapezoid model and the equivalent triangle model, are proposed. These two approaches are used to calculate the average temperature of a certain cross section which indicates the condition of the whole frozen soil wall. Considering the possible parameter range according to the freezing pipe layout that might be applied in actual construction, this paper compares the average temperatures of frozen soil walls obtained by the equivalent trapezoid method and the equivalent triangle method with that obtained by numerical integration of Bakholdin's analytical solution. The results show that the discrepancies are extremely small and these two new approaches are better than currently prevailing methods. However, the equivalent triangle method boasts higher accuracy and a simpler formula compared with the equivalent trapezoid method.
引用
收藏
页码:124 / 131
页数:8
相关论文
共 24 条
  • [21] Large scale excavation model test on single strutted sheet pile wall and back calculation of soil parameters
    Tefera, T. H.
    Nordal, S.
    Sandven, R.
    Numerical Methods in Geotechnical Engineering, 2006, : 391 - 397
  • [22] Volumetric calculation method and temperature characteristics of frozen soil in mechanical testing (vol 85C, pg 225, 2012)
    Zhang, Shujuan
    Sun, Zhizhong
    Xu, Xiangtian
    Du, Haimin
    COLD REGIONS SCIENCE AND TECHNOLOGY, 2013, 88 : 1 - 1
  • [23] Effect of uncertain hydrothermal properties and freezing temperature on the thermal process of frozen soil around a single freezing pipe
    Wang, Tao
    Liu, Yong
    Zhou, Guoqing
    Wang, Di
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2021, 124
  • [24] Temperature Calculation of a Single-Layer Wall Heated or Cooled Bilaterally by Heat Flows of Different Densities.
    Rehenek, Jaroslav
    Stavebnicky Casopis, 1975, 23 (12): : 897 - 908