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Earthquake isolation method for underground structure and earthquake-isolated underground structure

An underground structure and geomembrane technology, which is applied in the field of seismic isolation of underground structures and underground structures, can solve problems such as difficult application, high cost, and complicated measures, and achieve the effects of eliminating displacement difference, low cost, and simple isolation methods

Active Publication Date: 2020-07-28
JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a seismic isolation method for underground structures to solve the defects of high cost, complicated measures and difficult application in actual engineering in various existing seismic isolation inventions

Method used

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  • Earthquake isolation method for underground structure and earthquake-isolated underground structure
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  • Earthquake isolation method for underground structure and earthquake-isolated underground structure

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Embodiment Construction

[0025] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0026] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof;

[0027] As introduced in the background technology, the common seismic isolation measure in the field of seismic ...

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Abstract

The invention discloses an underground structure seismic insolation method and a seismic isolation underground structure. The underground structure seismic insolation method comprises the following steps of performing foundation pit excavation and foundation treatment, laying two layers of geomembranes onto a foundation; pouring a cushion layer onto the two layers of geomembranes to form a bottomplate, performing waterproof treatment on the bottom plate, and pouring concrete onto the bottom plate to form an underground structure; performing waterproof treatment on the side walls and the top plate of the underground structure; performing; performing foundation pit backfilling, backfilling the outside of the side walls of the underground structure with high-rigidity soil in a shape wide atthe top and narrow at the bottom, which does not fill a foundation pit completely, filling plain soil in between the outside the backfilled soil and the foundation pit, and compacting the filled plainsoil according to design requirements; laying another two layers of geomembranes onto the top plate of the underground structure.

Description

technical field [0001] The invention relates to a seismic isolation method for an engineering structure, in particular to a seismic isolation method for an underground structure and an underground structure obtained by the method. Background technique [0002] The constraints of the soil around the underground structure can limit its deformation. When an earthquake occurs, its natural vibration characteristics are not very obvious, so its earthquake damage was often overlooked in the past. With the extensive construction of underground structures and the improvement of people's awareness of earthquake resistance, more and more attention has been paid to underground earthquake resistance. [0003] At present, the common seismic isolation measure in the field of seismic resistance of above-ground structures is to install a seismic isolation layer composed of seismic isolators or dampers between the superstructure of the building and the foundation, so as to prolong the natural...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/08E02D3/00
CPCE02D3/005E02D31/08
Inventor 马正李军葛丰源彭小刚张光利郑志超
Owner JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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