<p>Shield construction has become the preferred method for urban tunnel projects, with a growing number of curved shield tunnels. Compared to straight shield tunnels, curved shield tunnels present two distinctive attributes: soil loss caused by localized over-excavation and more complex construction loads. The current theoretical methods lack specificity for construction load asymmetry. Based on the jacking thrust values and cylinder distribution, a simplified method is proposed to calculate uneven additional thrust, enabling real-time dynamic prediction of ground deformation. Subsequently, analytical expressions are derived for ground deformation induced by small-radius curved shield tunnels. These formulations integrate an existing soil loss model applicable to curved shield tunnels, incorporating both uneven additional thrust and the over-excavation gap that considers articulation systems. The reliability and rationality of the obtained solutions are validated through field data and a numerical model. A comparison analysis with existing models reveals that the offsets calculated by each model follow a discernible pattern, with the proposed method proving effective for curved tunnels exhibiting significant thrust discrepancies. Further parametric analyses show that the average additional thrust primarily affects ground deformation values, whereas the difference coefficient mainly affects the horizontal offset.</p>