Sand　liquefaction　is　one　of　the　leading　causes　of　severe　earthquake　damage.　In　this　study,　shaking　table　tests　were　carried　out　to　investigate　the　dynamic　interaction　between　the　saturated　sand　and　the　irregular　subway　stations.　In　this　test,　a　method　for　the　preparation　of　a　liquefiable　foundation　based　on　a　flexible　sensing　chain　combined　with　water　sedimentation　was　proposed.　Typical　test　results　were　interpreted,　including　the　development　and　spatial　distribution　of　pore　pressure,　surface　subsidence,　acceleration,　deformation,　and　dynamic　earth　pressure.　Results　show　that　the　spatial　distribution　of　excess　pore　water　pressure　is　changed　by　the　irregular　underground　structure,　and　the　liquefiable　soil　below　the　bottom　plate　of　the　structure　can　be　divided　into　I,　II,　and　III　areas　based　on　the　degree　of　liquefication.　The　surface　subsidence　is　significantly　related　to　Arias　intensity　and　is　concentrated　within　the　range　of　5　%-95　%　of　the　intensity.　The　structural　floating　is　synchronized　with　the　liquefaction　of　the　saturated　sand,　and　the　uneven　floating　and　inclination　of　the　underground　structure　are　remarkable,　anti-flotation　design　of　underground　structures　should　take　into　account　differences　in　section　forms.　During　the　liquefaction　of　saturated　sand,　the　foundation　soil　has　conspicuous　lateral　deformation,　especially　in　the　deep　soil　layer.　The　shape　of　the　dynamic　earth　pressure　increments　turns　from　triangular　to　linear,　when　the　foundation　soil　changes　from　non-liquefied　to　liquefied.　Compared　with　the　limiting　values　of　the　elastic　interstory　drift　ratio,　the　maximum　inter-story　drift　ratio　of　the　structure　is　smaller.　The　tensile　strain　responses　on　the　columns,　particularly　in　the　lower　layer,　are　more　prominent　than　those　at　the　slabs　and　side　walls.