Grouting pile sandwich panel wave barrier

Abstract

The invention relates to an expanded pile sandwich board wave barrier, which consists of a plurality of parallel pile bodies (2). The upper and lower ends of each pile body (2) are spherical or discal expanded bodies (1), and each two adjacent expanded bodies (1) are connected with each other. The plate surface of each expanded body (1) is convex concave ragged structure. The expanded pile sandwich board wave barrier is suitable for treating the ambient vibration harm caused by high-speed railways, subways and large-scale macroshock equipment. The expanded pile sandwich board wave barrier can be used for active or passive vibration isolation without impacting the foundation and ground structure of a treated object. The in-earth sandwich board wave barrier consisting of the pile bodies and the expanded body structures is embedded under the ground with required depth, and the size of the wave barrier depends on the wavelength of the in-earth ambient vibration. The convex and concave ragged plate surface of the wave barrier consisting of the expanded bodies can reduce the reflection of a wave front and consequently improve the vibration isolation effect of the wave barrier. The wave barrier can usually reduce the ground ambient vibration by 6 to 7 dB. An execution implement can usually be a common pile foundation implement, and the concrete material is also used as a usual material, and the cost can be controlled at 3,500 yuan per meter.

Description

technical field [0001] The invention belongs to the technical field of ground vibration isolation, and mainly relates to a wave barrier of an expanded pile sandwich plate. It is suitable for passive or active vibration isolation of environmental vibration caused by high-speed railways, subways, large-scale strong vibration equipment, etc. Background technique [0002] The existing control of environmental vibration damage caused by high-speed railways, subways, and large-scale strong vibration equipment is mostly active vibration isolation, but the floating plate commonly used in active vibration isolation prevents high-speed trains from running at high speed due to the greatly reduced critical speed. Only passive vibration isolation measures can be taken. The wave barrier that can implement the passive vibration isolation of environmental vibration is still under study in our country. Internationally, most of the ground vibration isolation wave barriers are still in the t...

AI Technical Summary

Problems solved by technology

The multi-row pile with the lowest cost is 40,000 / m, and the calculation result is slightly lower than the former in terms of vibration isolation efficiency

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