Numerical Simulation Research on Spatial Variation of Displacement of Underground Pipeline During Excavation of Deep Foundation Pit in Tianjin Soft Soil Area

Ji Kuixiang; Guo Jinjing; Zhou Yuming

doi:10.3969/j.issn.1007-2993.2014.01.008

Volume 28 Issue 1

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Ji Kuixiang, Guo Jinjing, Zhou Yuming. Numerical Simulation Research on Spatial Variation of Displacement of Underground Pipeline During Excavation of Deep Foundation Pit in Tianjin Soft Soil Area[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2014, 28(1): 33-36,50. doi: 10.3969/j.issn.1007-2993.2014.01.008

Citation:

Ji Kuixiang, Guo Jinjing, Zhou Yuming. Numerical Simulation Research on Spatial Variation of Displacement of Underground Pipeline During Excavation of Deep Foundation Pit in Tianjin Soft Soil Area[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2014, 28(1): 33-36,50. doi: 10.3969/j.issn.1007-2993.2014.01.008

Citation:

Ji Kuixiang, Guo Jinjing, Zhou Yuming. Numerical Simulation Research on Spatial Variation of Displacement of Underground Pipeline During Excavation of Deep Foundation Pit in Tianjin Soft Soil Area[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2014, 28(1): 33-36,50. doi: 10.3969/j.issn.1007-2993.2014.01.008

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Numerical Simulation Research on Spatial Variation of Displacement of Underground Pipeline During Excavation of Deep Foundation Pit in Tianjin Soft Soil Area

doi: 10.3969/j.issn.1007-2993.2014.01.008

1. Tianjin Chengjian University, Tianjin 300384, China;
2. Tianjin Institute of Geotechnical Investigation and Surveying, Tianjin 300191, China

Received Date: 2013-07-17
Available Online: 2021-07-19

Abstract

Abstract

Taking a deep foundation pit engineering of a research building in Tianjin as an example,analysis adjacent pipeline displacement rule caused by foundation pit excavation with the finite element simulation.Simulation results show that different excavation sequence will lead to different displacements of pipeline,the influence on pipeline from middle to both sides excavation is smaller than that from both sides to the middle excavation,and at the end of the foundation pit is the maximize curvature change of the pipeline.The soil reinforcement can effectively reduce the displacement of pipeline caused by foundation pit excavation.Different depth and width of reinforced soil will result in different restrictions on pipeline displacement function.In combination with the practical situation of the project,believe that when the strengthening depth is 7 m and the width is 7 m is the most economic under the premise of best reinforcement effect.
- soft soil area,
- underground pipeline,
- reinforce,
- finite element simulation