Under the action of an earthquake, a slope can dissipate energy by generating a certain displacement. The critical permanent displacement in the state of limit equilibrium is the allowable displacement of the slope to dissipate seismic energy. Within the range of allowable displacement, the slope can transform and consume the seismic energy by generating displacement safely. However, when the displacement exceeds the allowable displacement, the slope will be unstable. In this paper, considering the mechanism of vibration absorption, and energy dissipation of flexible supporting structures, based on the energy method, the calculation model for the seismic displacement of slope supported by the frame structure with anchors is built, the structural energy dissipation and energy response process under earthquake action are analyzed, and the seismic permanent displacement of the slope is studied. The research results can quantify the energy consumption of the slope supporting structure under earthquake action, optimize the supporting structure according to the energy consumption of the structure, and provide a certain theoretical foundation for the aseismic design of the slope strengthened by the frame structure with anchors.

This paper takes the deep foundation pit project of Lanzhou Hospital of Traditional Chinese Medicine as the background. The design and construction of the foundation pit is relatively difficult due to the complex environment around the pit, the dense surrounding buildings, the complex underground soil layer and the influence of groundwater on the pit. In order to detect problems in the construction process, the pit was monitored in real time through an automated monitoring system for the whole process of excavation and backfilling of the pit. The analysis of the actual monitoring data shows that: (i) the support scheme of bored pile + prestressed anchor cable support combined with concrete corner bracing can meet the design of this type of foundation pit without causing disturbance to the surrounding buildings; (ii) combined with the actual case of the influence of groundwater on the excavation process of the foundation pit, it proves that the real-time measurement by the robot can timely detect the safety hazards caused by external factors during the construction process of the foundation pit. The project is a very important one for deep pits and complex pits. This project provides a good reference case for deep foundation pits and foundation pit projects in complex environments.