Geotextile bag shock absorption and vibration isolation building foundation, and construction method and application thereof

A geotechnical bag and foundation technology, which is applied in the direction of basic structure engineering, construction, protection devices, etc., can solve the problems of poor vertical shock absorption effect and high price, and achieve good shock absorption and isolation effect, good effect and resource saving Effect

Active Publication Date: 2010-12-15
HOHAI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vertical shock absorption effect of the above-mentioned shock isolation and energy dissipation devices is not good enough, and the price is too high, so it is difficult to popularize and apply them in ordinary buildings, especially in the foundations of middle and low-rise buildings in cities and towns.

Method used

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  • Geotextile bag shock absorption and vibration isolation building foundation, and construction method and application thereof
  • Geotextile bag shock absorption and vibration isolation building foundation, and construction method and application thereof
  • Geotextile bag shock absorption and vibration isolation building foundation, and construction method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1: A geotechnical bag shock-absorbing and seismic-isolation building foundation

[0025] Excavate a 1.2m×1.2m×1.2m foundation pit on the ground floor directly below the building pillars (50cm×50cm), arrange 40cm×40cm geotechnical bags in a criss-cross pattern and lay 8 layers, each layer is pressed by a roller compactor The gaps between the solid and geotechnical bags are filled with excavated soil to form a geotechnical bag pier foundation, and three layers of geotechnical bags are laid under the load-bearing wall of the building, arranged in a crisscross manner and compacted to form a geotechnical bag strip foundation. Lay 3 layers of geotechnical bags on the entire foundation surface of the building, arrange them in a criss-cross pattern and compact them to form a raft-shaped foundation of geotechnical bags, and pour a layer of reinforced concrete floor on the top surface of the raft-shaped foundation.

Embodiment 2

[0026] Embodiment 2: A construction method for a geotechnical bag shock-absorbing and seismic-isolation building foundation, its construction steps are as follows:

[0027] A. First put the foundation soil excavated from the construction site into a 40cm×40cm woven bag, and tie the bag mouth well to form a geotechnical bag for use;

[0028] B. Excavate a foundation pit with a depth of 1.2m×1.2m×1.2m under the building column according to the load on the upper part of the building and the foundation conditions, and compact the surface of the foundation pit with a rolling machine;

[0029] C. Place the geotechnical bags of step A layer by layer in the foundation pit in a criss-cross arrangement, roll them layer by layer with a rolling machine, and fill the gaps between the geotechnical bags with the excavated foundation soil;

[0030] D. Construct layer by layer according to the method of step C, and lay 8 layers of geotechnical bags to form a geotechnical bag pier-shaped founda...

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Abstract

The invention provides a geotextile bag shock absorption and isolation building foundation and a construction method thereof. The foundation consists of a geotextile bag, geotextile bag pier foundation, a geotextile bag strip foundation, a geotextile bag raft foundation and a terrace, wherein geotextile bags are horizontally and longitudinally staggered and stacked layer by layer under the terrace in the sequence of the pier foundation under the column, the strip foundation under the wall and the raft foundation under the house of the building foundation; and clearances among the geotextile bags are filled up and tamped; and reinforced concrete or other material protective layer and the like is spread on the terrace. When an earthquake happens, earthquake waves are reflected and refracted between the insides of the geotextile bags and the geotextile bags; and the flexible deformation of the geotextile bags and the friction movement among soil particles inside the geotextile bags as well as the friction diastrophism among the geotextile bags consume the energy of the earthquake waves, and the earthquake waves are isolated due to the discontinuity among the geotextile bags. The method has the advantages of good shock absorption and vibration isolation effects, simple construction, economy, and remarkable economic and social benefits.

Description

technical field [0001] The invention relates to a shock-absorbing and seismic-isolation building foundation and its construction method and application, in particular to a geotechnical bag shock-absorbing and seismic-isolation building foundation and its construction method and application. Background technique [0002] The seismic isolation and energy dissipation of existing buildings is basically to set a seismic isolation layer between the superstructure and the foundation of the building to prolong the natural vibration period of the entire structural system, increase the damping, and reduce the seismic energy input to the superstructure. Meet the expected shockproof requirements. At present, rubber shock-isolation bearings and damping devices are widely used at home and abroad. However, the vertical shock absorption effect of the above-mentioned shock-isolation and energy-dissipation shock-absorbing devices is not good enough, and the price is on the high side, so it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/34E02D31/08
Inventor 刘斯宏王艳巧胡晓平李亚军
Owner HOHAI UNIV
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