Application of composite inclined PRC pipe pile retaining structure in excavation engineering
Prestressed concrete(PRC)pipe piles have the characteristics of large bending rigidity,high ductility and reliable pile formation,it is more suitable to used as supporting structures in the excavation engineering in which the pile mainly bears horizontal force.Inclined-vertical and inclined-vertical double-rows retaining structure has frame,supporting and gravity effect,which can effectively reduce the horizontal deformation and internal force of the pile.Taking the inclined PRC pipe pile excavation support in silt area as an example,according to the design selection,inclined PRC pipe pile construction,excavation deformation monitoring and analysis,the supporting effect of inclined PRC pipe pile composite structure was discussed,and the results show that it better controls the excavations deformation and has favorable application effect in the silt stratum.
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