中文摘要：

通过广州某地铁车站的施工对周边既有建筑物影响的三维数值模拟分析，探讨了地表钻孔帷幕注浆对既有建筑物的保护作用。实践证明，帷幕注浆起到了阻隔地层变形及地下水渗流的作用，有效地减小了建筑物的沉降量及倾斜度，保证了建筑物的安全。

英文摘要：

Through the 3D numerical simulation analysis of the impact on the existing building by Guangzhou subway station, the protection of existing building by curtain grouting is discussed. Results show that curtain grouting can obstruct ground deformation and infiltration , reduce the subsidence and inclination effectively and assure the security of the structure.