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Mechanical Behaviors and Deformation Properties of Retaining Wall Formed by Grouting Mould-Bag Pile

查看全文 作　　者：Shengcai [1]Li;Jun [1,2]Tang;Lin [3]Guo 高影响力作者 机构地区：[1]School of Civil Engineering,Huaqiao University,Xiamen,361021,China;[2]Cross-strait Tsinghua Research Institute,Xiamen,361006,China;[3]Fujian Engineering Research Center for Construction and Management of Green Buildings,Minnan University of Science and Technology,Quanzhou,362700,China高影响力机构 出　　处：《Structural Durability & Health Monitoring》索引2019年第13卷第1期,共24页高影响力期刊 基　　金：The work is supported by the National Natural Science Foundation of China(No.51578253);Scientific and Technological Planning Project of Xiamen City(Nos.3502Z20172011 and 3502Z20172014);Scientific and Technological Planning Project of Quanzhou City(No.2018C083R);Reform study of graduate education and teaching of Huaqiao University in 2018(No.18YJG55). 摘　　要：The simplified mechanical model and finite element model are established on the basis of the measured results and analysis of the grouting pile deformation monitoring,surface horizontal displacement and vertical displacement monitoring,deep horizontal displacement(inclinometer)monitoring,soil pressure monitoring and seepage pressure monitoring in the lower reaches of Wuan River regulation project in Shishi,Fujian Province.The mechanical behavior and deformation performance of mould-bag pile retaining wall formed after controlled cement grouting in the silty stratum of the test section are analyzed and compared.The results show that the use of controlled cement grouting mould-bag pile technology is to strengthen the soft stratum for sealing water and reinforcement,so that it can rock into a retaining wall,which can both retain soil and seal water with excellent effect.The control of cement grouting technology not only makes the soft soil rock in the range of retaining wall of mould-bag pile,but also makes a wide range of soil around the mould-bag pile squeeze and embed to compaction;and its cohesion and internal friction angle increased,so as to achieve the purpose of reducing soil pressure and improving mechanical and deformation properties of retaining wall. 关 键 词：Controlled cement grouting technology grouting mould-bag pile retaining wall mechanical behaviors deformation properties
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