Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Main positions: President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
Other Post: Vice President of the Chinese Society of Rock Mechanics and Engineering CSRME
Title of Paper:季节性冻土地区高铁路基沉降研究
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Date of Publication:2013-08-15
Journal:东北大学学报（自然科学版）
Included Journals:EI、PKU、ISTIC、CSCD、Scopus
Volume:34
Issue:8
Page Number:1202-1205
ISSN No.:1005-3026
Key Words:高铁路基;季节性冻土;CFG桩复合地基;有限元;沉降值
Abstract:以哈大高铁苏家屯段为研究对象,利用有限元软件ADINA对其进行三维模拟,结果表明,未经CFG桩处理的高铁路基沉降值不符合规范要求.通过改变CFG桩参数(褥垫层模量、褥垫层厚度、桩径、桩间距、桩长),利用有限元软件进行多次二维模拟,得到各参数与路基沉降的关系.最后将CFG桩的参数进行组合,模拟出路基在CFG桩各参数组合条件下的路基沉降值.模拟结果表明,当褥垫层厚度为350 mm,褥垫层变形模量为120 MPa,桩间距为2m,桩径为0.5m,桩长为9.5m时,路基沉降量最小.
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