[1]李方政.基于指数积分函数的人工冻土温度场解析研究[J].东南大学学报(自然科学版),2004,34(4):469-473.[doi:10.3969/j.issn.1001-0505.2004.04.011]
 Li Fangzheng,Xia Mingping.Study on analytical solution of temperature field of artificial frozen soil by exponent-integral function[J].Journal of Southeast University (Natural Science Edition),2004,34(4):469-473.[doi:10.3969/j.issn.1001-0505.2004.04.011]
点击复制

基于指数积分函数的人工冻土温度场解析研究()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第4期
页码:
469-473
栏目:
其他
出版日期:
2004-07-20

文章信息/Info

Title:
Study on analytical solution of temperature field of artificial frozen soil by exponent-integral function
作者:
李方政1 3 夏明萍2
1 东南大学岩土工程研究所, 南京 210096; 2 北京联合大学自动化学院, 北京 100101; 3 北京中煤矿山工程有限公司, 北京 100013
Author(s):
Li Fangzheng1 3 Xia Mingping2
1 Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
2 Institute of Automation, Beijing Union University, Beijing 100101, China
3 Beijing Coal Mine Ltd., Beijing 100013, China
关键词:
冻土帷幕 指数积分函数 瞬态温度场 相变
Keywords:
frozen soil wall exponent-integral function transient temperature field phase change
分类号:
TD265
DOI:
10.3969/j.issn.1001-0505.2004.04.011
摘要:
人工冻土温度场是与空间和时间相关的且含有相变的瞬态温度场.将指数积分函数作为人工冻土瞬态温度场的解析形式,通过指数积分函数的近似级数表达式和工程应用,说明瞬态冻土温度分布的近似解析解是可行的,且分别在时间和空间上服从对数规律分布.从冻结相变过程中,得出了冻土帷幕扩展厚度、速度与冻结时间关系的理论表达式,为冻结工程分析冻土温度分布、冻结帷幕的厚度、强度及冻结时间提供了一条新的途径.
Abstract:
The temperature field of artificial frozen soil is a transient temperature field which relates to both space and time involving phase change. Regarding exponent-integral function as an analytical way of transient temperature field of artificial frozen soil, the feasibility of the analytical solution and its logarithmic distribution law on both space and time are confirmed by the approximate progressional expression of exponent-integral function and the engineering application. The theoretical function expression between the expanding depth and velocity of frozen soil wall and freezing time is acquired according to freezing procedure of phase change. Therefore, a new way of analyzing the distribution of temperature, the expanding depth, strength, as well as the freezing time of artificial frozen soil is provided for freezing engineering.

参考文献/References:

[1] 陈湘生. 人工冻结粘土力学特性研究及冻土地基离心模型试验[D].北京:清华大学水利水电工程系,1999.
[2] 杨更社,张晶.非均匀温度分布冻土墙围护深基坑开挖的有限元数值模拟[J].岩石力学与工程学报,2003,22(2):316-320.
  Yang Gengshe,Zhang Jing.Finite element numerical simulation of deep foundation pit excavation supported by frozen soil wall with nonhomogeneous themperature distribution [J].Chinese Journal of Rock Mechanics and Engineering,2003,22(2):316-320.(in Chinese)
[3] 曹荣斌. 深井冻结凿井法数值模拟与工程计算[D].淮南:安徽理工大学土木工程系,2002.
[4] 张燕. 预报冻结壁形成及其温度分布的有限元法[J].煤炭学报,1979,11(2):29-37.
  Zhang Yan.Using finite element method to predict the formation and temperature distribution of the freezing-wall in the freezing method of shaft sinking [J]. Journal of China Coal Society,1979,11(2):29-37.(in Chinese)
[5] 奥齐西克著.热传导[M].余昌铭等译,北京:高等教育出版社,1983.
[6] 朱法银,梁碧芝.井函数及其级数展开[J].大庆石油学院学报,1994,18(1):114-116.
  Zhu Fayin,Liang Bizhi.Well function and its series expansion [J]. Journal of Daqing Pertroleum Institute,1994,18(1):114-116.(in Chinese)

备注/Memo

备注/Memo:
基金项目: 煤炭科学研究总院科技发展基金资助项目.
作者简介: 李方政(1972—),男,博士生,工程师,lifangzheng@263.net.
更新日期/Last Update: 2004-07-20