Study on Π Type Retaining Wall Based on Fabricated Design Philosophy
Based on the design philosophy of fabricated retaining wall,herein two structural forms of Π type retaining wall were put forward.The form 1 was that the upper layer of structural unit of retaining wall was supported on the rib of lower layer of structural unit;and the form 2 was that the faceplate of upper layer of structural unit was supported on the rib top of lower layer of structural unit.The rib was supported on the filling between the upper and lower layers of structural unit.The upper layer of structural unit provided through the protuberant faceplate at the lower layer the mechanism of horizontal displacement limit to transfer horizontal thrust,and this mechanism was proved to be scientific and reliable by numerical simulation.The research shows that,the contact stress between the structural units of Π type retaining wall meets the compressive strength requirement;the structure stiffness and the horizontal deformation meet the requirement;the overall stability of the structure also meets the requirement;and compared with traditional weight-balanced and counterfort retaining wall,Π type retaining wall is superior at the respect of project cost due to its convenient construction.
fabricatedΠ type retaining wallstructure unitcontact stressstructure stiffnessstability
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