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The soft ground abutments stability control and on-site monitoring technology

Author: YueJian
Tutor: LengWuMing
School: Central South University
Course: Geotechnical Engineering
Keywords: Soft ground Abutment Stability control On-site monitoring Finite Element Method
CLC: U443.21
Type: Master's thesis
Year: 2007
Downloads: 148
Quote: 1
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Abstract


For the construction of the bridge in the deep soft ground , after the Taiwan high embankment construction bridgehead lying on soft soil overlying embankment load lateral plastic flow and consolidation , if not handled properly , will abutment stability very negative impact , such as the bridge span is reduced , can not rack beams , even in the construction or operation of the manipulation abutment severely deformed , pile breaking, etc. . Wenfu railway located in the deep soft ground on the Service Mountain Bridge Wenzhou abutments on-site monitoring during the construction phase , and combined with theoretical analysis , deep soft soil of abutment stability under high embankment : (1) according to the literature , summarizes the bridgehead embankment filling soft foundation abutment stability affect field trials , laboratory experiments and numerical computing research has already been achieved . ( 2 ) analysis of the soft ground Abutment Subgrade impact on the stability of the bridge abutment to explore Taiwan after embankment construction caused by soft soil deformation the lateral abutment piles pressure and negative skin friction calculation method , , and calculation methods were analyzed and compared . ( 3 ) analysis of the causes and manifestations of the the soft ground abutments disease , summarizes the key factors affecting soft ground abutments stable , summed up the the soft ground abutments stable control measures . ( 4) to carry out the monitoring of the construction phase of Works Hill Bridge Wenzhou Bridge station , collation and analysis has been made of the initial monitoring results . ( 5) the use of large general-purpose finite element software ADINA soft foundation abutment pile of traits in Taiwan the roadbed heap after loads for three-dimensional analysis of a pile by the Taiwan Subgrade deformation law .

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CLC: > Transportation > Road transport > Bridges and Culverts > Bridges constructed > Pier structure ( substructure ) > Abutment
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