Three-dimensional laser scanning technology can comprehensively and accurately monitor slope deformation. To conduct deformation monitoring and stability evaluation of the Changzhou Shunguoshan landslide, in this paper, the causes of the Changzhou Shunguoshan landslide were analyzed. Consequently, 3D laser scanning technology and the traditional monitoring methods such as data from the total station were compared. The point cloud data provides big data support for landslide deformation monitoring and landslide stability early warning. Meanwhile, the landslide stability was evaluated by analogy with existing studies on slope deformation monitoring data. Results show that the three-dimensional laser scanning monitoring data is similar to the total station monitoring data. The overall deformation of the Shunguoshan landslide is no more than ± 0.0015 m; the deformation of the Liyang slope is less than ±0.09 m, which is far less than the analog slope deformation monitoring data. The slope construction and monitoring process are in a stable state.

The test section of Changzhou North Railway Station of Rail Transit Line 1 is taken as the engineering background. It is before the shield tunnel passes through the Beijing-Shanghai high-speed railway. With software of PLAXIS 3D, the numerical simulation on surface deformation is conducted considering the influence of shield tunnelling, based on the M-C. HS and HSS model. The calculated results of the three models are compared with the monitoring data. It is shown that the HSS model is optimal. In addition, the applicability of 0.5% and 0.8% for the loss rate of shield tunnelling in Changzhou is studied. It is reasonable to adopt 0.5% stratum loss rate for general shield tunnel conditions. But, sometimes in order to consider the special conditions such as deviation rectification construction, stratum loss rate should be set at 0.8%.