个人信息Personal Information
副教授
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:水利工程系
学科:水工结构工程
办公地点:综合试验3号楼528-2
联系方式:QQ545704082
电子邮箱:zhang-yunliang@dlut.edu.cn
锁脚锚管受力分析的双参数弹性地基梁模型
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发表时间:2016-01-01
发表刊物:岩石力学与工程学报
卷号:35
期号:5
页面范围:989-999
ISSN号:1000-6915
摘要:To avoid the weakness of the Winkler beam model on elastic foundation,a
two-parameter foundation model of Pasternak reflecting the continuity of
the foundation was applied in the analysis of the feet-lock pipe
combined with steel arch. The formulae to calculate the deflection,shear
force,bending moment and foundation reaction of feet-lock pipes were
derived using the theory of structural analysis and beam on elastic
foundation under the consideration of the compatibility of deformation
and load transfer between the feet-lock pipe and steel arch. The
influence of subgrade coefficient and shear stiffness of the foundation
on the mechanical behaviors of feet-lock pipe was investigated through
examples and comparison with the Winkler model. It was found that the
smaller subgrade coefficient resulted in the larger difference of two
models of feet-lock pipe regarding values shear force,bending moment and
foundation reaction. The double parameter model produced a lager
foundation reaction and smaller distribution range,and the foundation
reaction mainly concentrated in the region near the near-end of the
feet-lock pipe. The tunnel settlement was less than that calculated from
the Winkler model. Finally,it was suggested that the designed length of
the feet-lock pipe should be reduced and its diameter should be
increased reasonably so as to obtain the desired supporting effect.
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