不均匀地层条件下装配式车站力学特性研究

Research on mechanical characteristics of fabricated stations under uneven strata

深圳地区普遍存在上软下硬的不均匀地层,鉴于装配式车站榫槽注浆式接头抗弯刚度的非线性特性,采用梁-弹簧计算模型实现抗弯刚度的迭代算法,分析装配式车站结构在典型不均匀地层条件下的力学特征,并同均一地层结构的受力进行对比分析,可知其内力和变形均存在一定的差异,从而得出在不均匀地层条件下装配式车站的受力及变形规律。

Uneven strata with a soft top and hard bottom generally exist in the Shenzhen area.In view of the nonlinear characteristics of the flexural rigidity of tongue-and-groove grouting joints in fabricated stations,the beam-spring calculation model is adopted,to achieve the iterative algorithm of flexural rigidity,analyze the mechanical characteristics of fabricated station structures under typical uneven stratum conditions,and compare and analyze the stress of the uniform stratum structure.It can be seen that certain differences exist in internal forces and deformation,so as to obtain the stress and deformation law of the fabricated station under uneven strata.