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author:

李润 (李润.) [1] | 简文彬 (简文彬.) [2] (Scholars:简文彬)

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Abstract:

采用单轴压缩等幅疲劳试验方式,对含预设裂隙的类岩模型试样、相应加锚模型试样及完整试样进行循环荷载试验,对试样进行实时超声波速、波形、时域波幅的测量及分析。结果表明:超声波速随裂隙倾角增大而减小,裂隙倾角0°试样波速最大,裂隙倾角90°试样波速最小;纵波波速随疲劳损伤的发展呈较明显的倒 S 形三阶段衰减规律,锚固试样波速衰减曲线比无锚杆试样平稳;波形在疲劳损伤过程中从近似半圆形逐渐发生畸变,波形相关系数随疲劳损伤累积呈下降趋势;时域幅值变化不稳定,锚固试样的时域幅值大于相同情况下无锚杆试样。

Keyword:

含裂隙类岩材料 声学参数 循环荷载 疲劳损伤

Community:

  • [ 1 ] [李润]福州大学
  • [ 2 ] [简文彬]福州大学

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Source :

水利与建筑工程学报

ISSN: 1672-1144

CN: 61-1404/TV

Year: 2014

Issue: 3

Page: 115-120,124

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 0

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