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Detachable soil body vibration reduction structure constructed based on vibration reduction and wave absorption material

A technology of wave-absorbing materials and vibration-damping structures, which can be used in infrastructure engineering, buildings, protective devices, etc., and can solve problems such as poor shock-absorbing effect and large volume

Active Publication Date: 2022-01-11
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and problems existing in the existing equipment, the present invention provides a detachable soil vibration-damping structure based on the vibration-absorbing material, which effectively solves the problems of poor vibration-damping effect and volume in the existing equipment. big problem

Method used

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  • Detachable soil body vibration reduction structure constructed based on vibration reduction and wave absorption material
  • Detachable soil body vibration reduction structure constructed based on vibration reduction and wave absorption material
  • Detachable soil body vibration reduction structure constructed based on vibration reduction and wave absorption material

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Embodiment 1

[0030]Embodiment 1: This embodiment aims to provide a detachable soil vibration-damping structure based on vibration-absorbing materials, which is mainly used for penetrating soil engineering. Internal vibration sources and external vibration sources (such as earthquakes) ) caused by the impact on engineering stability, in order to ensure the basic stability of soil engineering under the action of internal (common in water pipelines) or external vibration sources (common in earthquakes). Currently, steel pipes are usually placed in reinforced concrete box culverts in the embankment pipeline structure used in current projects, and the gap between the steel pipes and box culverts is filled with medium-coarse sand. Since the structure is relatively simple, and because the density of the filling material is not high and there is a certain gap between the structures, in the case of normal operation of the high-pressure water pipeline, the phenomenon of vibration of the surrounding s...

Embodiment 2

[0038] Embodiment 2: This embodiment is basically the same as Embodiment 1, the difference is that this embodiment further explains the structure of the wave-absorbing concrete material layer.

[0039] In this embodiment, two layers of wave-absorbing concrete material layers are arranged at intervals, and a wave-absorbing cavity 49 is formed between the two layers, wherein the drainage cavity between the inner layer of wave-absorbing concrete material layer and the buffer layer, and the outer layer of wave-absorbing concrete material layer and the transition layer connections.

[0040] In this embodiment, a detachable damping layer is provided, and its inner layer is a wave-absorbing cavity 49 with a certain thickness. The specific thickness of the wave-absorbing cavity 49 is determined by the period length of the vibration wave generated by the vibration source. Generally, it is a period length, which is used to refract and reflect the vibration wave, and to reduce the magnit...

Embodiment 3

[0041] Embodiment 3: This embodiment is basically the same as Embodiment 1, the difference is that this embodiment further explains the structure of the buffer layer and the steel fiber concrete layer.

[0042] The thickness of the buffer layer 43 is twice the thickness of the steel fiber concrete layer 42. At the same time, the thickness of the buffer layer outside the steel fiber concrete material layer 42 is related to the diameter of the pipe body, the diameter of the pipe body a and the thickness of the steel fiber concrete. If the steel fiber concrete material layer used is b, and b is not greater than 2 cm, it means that the vibration level is small, and the thickness of the buffer layer used at this time is generally 5 cm. If the vibration level is relatively large and the thickness of the steel fiber concrete used is greater than 4 cm, the thickness of the external buffer layer is generally twice the thickness of the steel fiber concrete layer.

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Abstract

The invention belongs to the technical field of vibration reduction of soil body engineering, and particularly relates to a detachable soil body vibration reduction structure constructed based on a vibration reduction and wave absorption material. The detachable soil body vibration reduction structure has high innovativeness and a good vibration reduction effect, can be prefabricated, and effectively solves the problems that when an existing vibration source component works normally, resonance of surrounding soil is caused by vibration, so that the basic stability of the soil is damaged under the action of dynamic load, soil settlement in a part of areas is caused, and the safety of a whole project is endangered; and meanwhile, component layers can be freely added or reduced according to the specific environment, the whole structure is detachable, convenient to construct, simple and efficient, harm caused by vibration is reduced, the problem that a vibration reduction structure and surrounding soil are not coordinated is solved to a certain extent, the effect of protecting the vibration reduction structure is achieved by limiting deformation of an internal vibration source structure, and therefore the structural stability of the soil engineering is improved.

Description

technical field [0001] The invention belongs to the technical field of soil engineering vibration reduction, in particular to a detachable soil vibration-damping structure constructed based on vibration-damping and wave-absorbing materials. Background technique [0002] Due to actual needs, for new soil engineering or in order to meet the needs of upgrading, reconstruction and reinforcement, it needs to be dealt with on the basis of the original project, especially the construction of some water pipelines. It not only affects the basic stability of the original project to a certain extent, but also the subsequent vibration problems are destructive to soil engineering. At the same time, vibration problems caused by natural disasters such as earthquakes cannot be ignored. In order to avoid the occurrence of situations such as repairing after a dead sheep, it is worth considering how to solve multiple problems in one construction. [0003] The common water pipelines running t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/08E02D31/02
CPCE02D31/08E02D31/02Y02A10/11
Inventor 张建伟邢帅黄锦林张翌娜江琦曹克磊
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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