基于模型试验的减振沟减振效应灰关联度分析

段宝福; 公伟增; 张雪伟; 沈世占; 孙克斌

基于模型试验的减振沟减振效应灰关联度分析

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出版历程
- 发布日期: 2020-01-19

Grey Correlation Analysis of Vibration Reduction Effect of Damping Ditch Based on Model Experiment

摘要

摘要: 为了研究爆破地震波传播过程中减振沟的减振规律,以实际工程为背景进行室内减振沟相似模型试验,通过控制减振沟的深度、宽度、长度和相对位置等参数,研究减振沟参数变化时的减振规律。运用灰色绝对关联度法确定减振沟参数对减振效果影响的主次关系,通过分析各变量对测点振速峰值影响的相关程度得出:爆心距和爆源深度为影响爆破振动效应的关键因素,减振沟其他参数一定时,爆心距越小或者爆源越浅,减振沟的减振效应越明显。对确定的爆破施工,减振沟的深度为准优因素,增加减振沟的深度可有效的提高减振效应。
- 爆破振动 /
- 减振沟尺寸 /
- 减振沟位置 /
- 相似模型试验 /
- 减振效应 /
- 灰关联分析
Abstract: To study the vibration reduction law of the damping ditch during the blasting seismic wave propagation, the indoor similar model test of damping ditch is carried out by taking the actual engineering as the background. By controlling the parameters such as the depth, width, length and relative position of the damping ditch, to study the vibration reduction law with the damping ditch parameters change. The grey absolute correlation method is used to determine the primary-secondary relationship of the influence of ditch parameters on the vibration reduction effect. The results showed that the blasting distance and the source depth are the key factors affecting the blasting vibration effect. When other parameters of the damping ditch are fixed, the smaller the blasting distance or the shallower the source is, the vibration reduction effect of the damping ditch is obvious. For the determined blasting construction, the ditch depth is a quasi-optimal factor, and increasing the ditch depth can effectively improve the vibration reduction effect.
- blasting vibration /
- damping ditch size /
- damping ditch position /
- similar model experiment /
- vibration reduction /
- grey correlation analysis

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参考文献(16)

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