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An indoor test device for measuring the vibration propagation characteristics of soil

A technology of propagation characteristics and indoor test, applied in the field of indoor test equipment, can solve the problem of lack of measurement of vibration propagation characteristics, and achieve the effect of suppressing the transmission of vibration waves

Active Publication Date: 2015-11-04
INST OF MECHANICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The current indoor soil experiment devices are mainly used to measure the strength and constitutive properties of soil, and there is still a lack of devices for measuring vibration propagation characteristics.

Method used

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  • An indoor test device for measuring the vibration propagation characteristics of soil
  • An indoor test device for measuring the vibration propagation characteristics of soil
  • An indoor test device for measuring the vibration propagation characteristics of soil

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Experimental program
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Embodiment Construction

[0036] The experimental device of the present invention can well meet a variety of experimental requirements, and needs to meet the following five points: 1. It can realize external load excitation with any frequency and any size; 2. It can load the soil with random signals and spectral signals. ; 3. The layout of the sensors can be arranged arbitrarily according to the needs, which can realize the intensive collection of vibration signals; 4. According to the experimental requirements, the three phases of the soil can be adjusted, and the humidity and compactness of the soil can be detected and monitored. Fifth, it can facilitate further research on soil vibration reduction and vibration isolation. All of the above points can be accomplished through this experimental device.

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] The indoor test device for measuring the vibration propagation characteristics of ...

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Abstract

The invention discloses an indoor test apparatus for measuring the vibration propagation characteristic of soil. The apparatus comprises an experiment excitation portion and an experiment enforcement portion, and the experiment excitation portion comprises a lateral support vertical plate, a top fixing beam, a fixed exciter clamp, an exciter, an excitation link device, a force sensor and an excitation gasket, and the excitation gasket contacts soil; and the experiment enforcement portion comprises a soil tank, a soil tank fixing device, a vibration isolation and damping material, an acceleration sensor, a soil humidity measurer and a soil compactness measurer. The test apparatus has the advantages of strong applicability, simple operation, convenient installation and dismounting, and low cost and operation cost, and is suitable for the fields of transportation, construction, high-speed railways, automobiles and the like.

Description

technical field [0001] The invention relates to an indoor test device for measuring the vibration propagation characteristics of soil. Background technique [0002] With the sustained and rapid development of the country's economy and the acceleration of urbanization, the population continues to gather in cities, and the scale of cities continues to expand, and even super cities such as Beijing and Shanghai have emerged. In order to meet people's normal travel requirements, major cities have built a large number of rail transit lines or heavy-duty expressways, which have brought great convenience to the lives of citizens, but various disadvantages have also become prominent. [0003] One of the problems is that the vibration caused by rail transit and heavy-duty vehicles in large cities has a significant adverse impact on the living and working environment of urban people near these traffic lines. Due to the heavy load and fast speed of rail transit or heavy-duty wheeled tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
Inventor 曾晓辉张良申仲翰周济福胡明祎
Owner INST OF MECHANICS CHINESE ACAD OF SCI
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