Test and numerical analysis of crack propagation caused
 by vibrations of rock materials

ZHANG Tong; LIU Wei-qun; ZHA Hao; FEI Xiao-dong

doi:10.16285/j.rsm.2016.S2.096

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Test and numerical analysis of crack propagation caused by vibrations of rock materials

更新时间：2026-06-25

- Test and numerical analysis of crack propagation caused by vibrations of rock materials
- Vol. 37, Issue S2, Pages: 761-768(2016)
- 作者机构：
  
  1. 中国矿业大学力学与建筑工程学院,江苏,徐州,221116
  2. 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏,徐州,221116
  3. 常熟森润工程技术咨询有限公司，江苏常熟,215500
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2016.S2.096
  CLC： TU452
- Online First：09 June 2018，
  
  Published：2016
- 稿件说明：
移动端阅览
ZHANG Tong, LIU Wei-qun, ZHA Hao, et al. Test and numerical analysis of crack propagation caused by vibrations of rock materials[J]. 2016, 37(S2): 761-768.
DOI：

ZHANG Tong, LIU Wei-qun, ZHA Hao, et al. Test and numerical analysis of crack propagation caused by vibrations of rock materials[J]. 2016, 37(S2): 761-768. DOI： 10.16285/j.rsm.2016.S2.096.

摘要

岩性体振动裂隙扩展是路基、桥梁、振动施工和防震等领域共同关注的问题。通过自制惯性加载装置联合振动实验台，对12组含边中穿透裂隙的板状相似岩样进行振动加载试验，观测裂隙扩展和贯通规律，并利用PFC颗粒流软件建立试验对应模型，进一步分析裂隙扩展的控制机制。结果表明，不同区域振动变形的相位差会促进裂隙的扩展行为；边裂隙的起裂方向与振动方向夹角较小，约在±10°以内，且与振向相同的边裂隙最容易扩展，与振向相同的边—中裂隙对最容易贯通；破坏频率与裂隙间距呈正相关性，并且随着裂隙倾角和振向夹角的增大，裂隙扩展越来越困难，垂直振向的裂隙最难扩展；振动裂隙扩展路径为裂尖最近路线，符合能量最小原理。

Abstract

Crack propagation caused by vibration of lithosome is a common concern in the fields of subgrade

bridge

vibration construction and earthquake prevention etc. Through combining the home-made inertia loading device with the platform of vibration

we implement 12 groups of vibration loading experiments on similar rock plates with penetrating cracks

observing the propagation and coalescence mechanism. Moreover

we establish the corresponding model in PFC software to analyze mechanism of crack propagation further. The results show that the phase difference of vibration deformation in different regions promotes the crack propagation behavior. The dipping angle between the direction of vibration and the initial propagating direction of notches is a little bit small

within the scope of ±10 degrees. Besides

in the direction of vibration

the notch is easier to propagate; while the couple of notch-middle fracture is prone to coalesce. The frequency of crack collapse shows positively correlative to the crack spacing. With the increase of the dipping angle between the crack inclination angle and the vibration direction

crack propagation becomes more and more difficult; and it’s the most hardly when the crack is perpendicular to the vibration direction. The same as what in static process

the path of crack propagation by vibration is the nearest route

which is consistent with the minimum energy principle.

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