Geogrid reinforced rubble vibration isolating device and manufacturing method thereof

Abstract

The invention belongs to the field of the control of industrial vibration, and relates to a geogrid reinforced rubble vibration isolating device and a manufacturing method thereof. The device comprises vibration isolating layers and an isolating layer, wherein the vibration isolating layers consist of a lower geofabric layer, grading rubble layers paved alternately, a geogrid and an upper geofabric layer from bottom to top; and the isolating layer is positioned above the vibration isolating layers. Based on the principle of wave scattering, the geogrid reinforced rubble vibration isolating device provides a driving vibration isolating device for reducing the vibration output of vibration equipment, has the excellent vibration isolating effect on the vibrating equipment and middle and low-frequency vibration caused by a foundation thereof, and can reduce vibration output effectively and weaken the adverse effect of vibration on peripheral precise instruments, historic buildings and thelike. Gaps among rubbles in the vibration isolating layers serve as an excellent drainage channel, and can play the effect of foundation improvement of reducing (nonuniform) sedimentation and improving the bearing capacity on soft strata. Compared with other conventional vibration isolating protective screens, the geogrid reinforced rubble vibration isolating device cannot be eroded by underground water, has stable performance and durability, and can play a role in isolating vibration for a long time.

Description

technical field [0001] The invention belongs to the field of industrial vibration control, and in particular relates to a vibration isolation device made of geogrid-reinforced gravel and a vibration isolation method using the device. Background technique [0002] At present, the countermeasures to control vibration pollution at home and abroad are mainly divided into: vibration source countermeasures, vibration countermeasures and distance countermeasures. Since the distance measure is at the expense of limited space, it is not advisable in actual engineering, and active vibration isolation and passive vibration isolation measures are often used at present. The traditional vibration isolation method uses a vibration isolator or vibration isolation material between the workbench (or foundation) and the supporting structure for vibration isolation. The main vibration isolators currently used are cylindrical coil spring vibration isolators, disc springs and laminated plates Sp...

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Problems solved by technology

Due to the influence of factors such as soil stability, groundwater level and construction cost, it is impossible to set the depth of the continuous barrier that determines the vibration isolation effect to be very deep, so it is only suitable for medium and high frequency vibrations; although the construction of discontinuous barriers such as row piles may not be affected by this However, the vibration isolation effect of a single row of piles is poor. If multiple rows of piles with good vibration isolation effects are used, the project cost will be higher

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