A Pile-raft Composite Seismic Isolation Trough Foundation Structure Under Strong Earthquake

Abstract

The invention provides a foundation structure of pile-raft composite seismic-isolation groove under strong earthquake, which comprises multiple pile foundations and multiple seismic-isolation bearings, and a plurality of matrix-arranged pile foundations are arranged in the foundation soil, and the pile top of each pile foundation is fixed The shock-isolation support is installed, and also includes the shock-isolation groove, the shock-isolation groove is installed on the vibration-isolation seat, the inner wall of the shock-isolation groove is laid with a hot-melt rubber layer, and the shock-isolation groove is laid sequentially from bottom to top. Rubber mats, pebble cushions, geogrids, rubber gravel mats, composite geomembranes, epoxy pours, asphalt sand mats and rafts. The invention can effectively attenuate or eliminate earthquake energy, avoid shaking and vibration of superstructures, and reduce disasters caused by earthquakes. The anti-seismic effect is outstanding, the construction is simple, the construction period is short, and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of anti-seismic engineering, and in particular relates to a pile-raft composite shock-isolation groove foundation structure under strong earthquakes. Background technique [0002] The piled raft foundation was proposed by Davis and Poulos in 1972. It refers to the foundation form of the rigid connection between the raft and the piles. It is often used in high-rise buildings in house construction. In recent years, with the rapid development of high-speed railways, nuclear power plants, and housing construction, piled raft foundations have been continuously applied to other construction fields. my country is an earthquake-prone country with frequent earthquakes, and the disasters caused by earthquakes are extremely serious, often endangering life and property safety. At the same time, the application of piled raft foundations faces new challenges in how to solve the problem of earthquake disasters. Therefore, it is ne...

AI Technical Summary

Problems solved by technology

However, for large-scale piled raft foundations, due to the characteristics of large scale and high rigidity, the isolation effect of only rubber isolation bearings is limited, and it is difficult to meet the seismic isolation requirements of large-scale piled raft foundations under strong earthquake conditions.

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