This　paper　describes　the　key　influences　of　yaw　excavation　loadings　on　ground　displacement　and　segmental　stress　for　a　curved　shield　tunnel.　The　influences　are　investigated　through　finite　element　models,　the　reliabilities　of　which　are　validated　through　comparisons　to　field　data　and　analytical　solutions.　Multiple　case　studies　of　different　curvature　tunnels　and　their　comparison　to　straight-line　tunnels　are　presented.　Under　the　dual　action　of　over-cutting　and　construction　loadings,　the　surface　settlement　of　the　curved　tunnel　is　larger　than　that　of　the　straight-line　tunnel.　The　horizontal　displacements　at　the　inner　and　outer　sides　of　the　curved　tunnel　are　asymmetric　with　respect　to　the　tunnel　axis.　This　asymmetry　can　increase　significantly　during　yaw　excavation　of　over　one　ring　width.　Yaw　excavation　loadings　have　a　significant　influence　on　the　horizontal　and　vertical　displacements　of　the　ground　within　a　span　of　shield　length　starting　from　the　position　of　the　hydraulic　jacks　until　the　back.　The　circumferential　compressive　stress,　axial　tensile　stress,　and　axial　compressive　stress　of　newly　installed　segment　of　the　curved　tunnel　are　greater　than　those　of　the　straight-line　tunnel.　Interestingly,　the　stress　increments　increase　linearly　with　yaw　severity.　The　results　are　of　benefit　to　suggest　improvements　for　practical　construction　procedures.