Method for consuming earthquake energy by sand gravel bedding and ensuring self-stability of sand gravel bedding

Abstract

A method for consuming earthquake energy by sand gravel bedding and ensuring self-stability of the sand gravel bedding comprises the following steps: a circle of peripheral elastic walls are arranged on the outer side of the bottom of a building foundation while the sand gravel bedding is laid, the elastic walls surround the bottom of the whole foundation and the material of the sand gravel bedding under the foundation, pre-buried wood bricks are arranged at wall corners or deformation seams, the elastic walls are connected into a whole through steel nails and the pre-buried wood bricks, sand or gravel wrapped by geotechnical cloth is arranged in the centers of the elastic walls, old tires wrap the geotechnical cloth, and the outside of the old tires is wrapped with a geonet to form a continuous closed wall. The flexibility of the elastic walls is utilized to consume the earthquake energy, the containment of the elastic walls is utilized to restrain the movement space of sand gravels, the self-organizing characteristic of a discrete material is utilized to guarantee the self-stability and the steadiness of the sand gravel bedding after many times of great vibrations, and differential settlement of the building, caused by deformation of the bedding in the service period of the building, is effectively prevented.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of buildings, and in particular relates to a method for using a sand and gravel cushion to consume seismic energy and ensure its own stability. Background technique [0002] In the field of anti-seismic buildings, the sand and gravel cushion is used as the bearing layer of the building. The sand and gravel cushion can also play a role in adjusting the pile-soil load sharing ratio when applied to the rigid pile composite foundation. This is the replacement of other continuum materials. At the same time, the sand and gravel cushion can separate the superstructure from the foundation, and use the horizontal displacement and deformation generated by the sand and gravel cushion to consume seismic energy, thereby reducing the seismic response of the superstructure, killing two birds with one stone. Sand and gravel cushion can be obtained locally, convenient for construction, short in construction ...

AI Technical Summary

Problems solved by technology

The cushion is no longer flat, and the stability of the cushion is reduced, which is easy to cause uneven settlement of subsequent buildings (structures), especially under the action of earthquakes, the situation is particularly serious

There is no good prevention method

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