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人工水平冻结冻土帷幕强制解冻温度场数值分析(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2011年04期
Page:
117-120
Column:
研究论文
publishdate:
2011-07-31

Article Info:/Info

Title:
Thermal field numerical analysis of artificial thawing of horizontal freezing soil wall
Author(s):
YUAN Yunhui YANG Ping* WANG Haibo
College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
Keywords:
artificial horizontal freezing artificial thawing thermal field numerical analysis
Classification number :
TU445
DOI:
10.3969/j.jssn.1000-2006.2011.04.024
Document Code:
A
Abstract:
Combined with the artificial horizontal soil freezing reinforcement construction for the arriving of shield machine in the northern end of the Metro station distribution law of horizontal soil wall thermal field was studied in artificial thawing condition. In this process ADINA finite element calculation software was applied to establish the artificial thawing model. Sensitivity of temperature of hot brine, circulation time of hot brine and distance between thawing pipes was analyzed. Calculation results indicated that raising temperature of brine, prolonging circulation time of brine and utilizing the shortest distance between thawing pipes could shorten the artificial thawing time of freezing wall. Furthermore, construction technical parameter and criteria of artificial thawing in arriving of shield machine horizontal freezing was proposed.

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Last Update: 2011-08-13