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Study on Properties of Stress、Deformation and Reducing-Pressure Mersure on the High-Stacked Culvert

Author: ZhangShiPing
Tutor: YaoLingZuo；XuZhongRong
School: Southwest Jiaotong University
Course: Architecture and Civil Engineering
Keywords: GaoTianTu embankment
CLC: U449
Type: Master's thesis
Year: 2004
Downloads: 163
Quote: 7
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Abstract


The paper based on to cross in highway embankment GaoTianTu under culvert entity engineering, through the master test element test, study the culvert top soil pressure distribution and variation characteristics, and combined with GaoTianTu culvert field test results, and points out that some design departments use the values of calculation formula of smaller or experience curve calculation culvert top vertical earth pressure is the main causes of the disease, better solutions in culvert top spread fill compressibility than fill of soft material, can greatly reduce hole crest the clock milk which vertical earth pressure. To gather all ethylene (EPS) foam as load reducing material comparison test and obtain load reduction measures and not take load reduction measures culvert vertical earth pressure and load reducing material deformation of large quantities of measured data, analyses and summarizes the EPS board as culvert load reducing material performance and load reducing effect. With the aid of MARC and ANSYS software, the elastic-plastic constitutive model for high filling culvert of earth pressure distribution and settlement characteristics of the nonlinear finite element calculation, and with the field measured results are compared and analyzed, the results of the study of high fill embankment under culvert structure design and construction is a guiding role. On this basis, put forward to reduce the high fill embankment under culvert structure on the vertical earth pressure of effective measures.

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CLC: > Transportation > Road transport > Bridges and Culverts > Culvert
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