Study on a Method of Describing the Rock Fracture Surface based on PFC3D

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Study on a Method of Describing the Rock Fracture Surface based on PFC3D

更新时间：2025-09-25

- Study on a Method of Describing the Rock Fracture Surface based on PFC3D
- Issue 1, Pages: 43-50(2020)
- 作者机构：
  
  青岛理工大学土木工程学院,山东,青岛,266033
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Published：2020
- 稿件说明：
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丛怡,王在泉,张黎明,丛宇.基于颗粒离散元法描述岩石断面形貌的方法研究[J].防灾减灾工程学报,2020,(1):43-50

CONG Yi. Study on a Method of Describing the Rock Fracture Surface based on PFC3D[J]. 2020, (1): 43-50.
丛怡,王在泉,张黎明,丛宇.基于颗粒离散元法描述岩石断面形貌的方法研究[J].防灾减灾工程学报,2020,(1):43-50 DOI：

CONG Yi. Study on a Method of Describing the Rock Fracture Surface based on PFC3D[J]. 2020, (1): 43-50. DOI：

摘要

破裂面作为岩石破坏之后最为直观的观测对象，其中蕴含着大量与破坏过程相关的细观信息，通过室内断口粗糙度扫描试验对破裂面进行分析不仅耗时耗力，而且试样最终断裂表面覆有大量白色岩粉会导致破裂面信息在扫描过程中出现不同程度的丢失。因此提出一种基于数值模拟的细观破裂面拟合方法，通过PFC3D对不同应力路径下大理岩的变形破坏过程进行细观模拟，基于裂纹形成过程中的三类位移场与破裂面之间的关系，对试样最终破裂面进行提取与重建。结果表明：通过该方法拟合所得破裂面同室内试验所得真实岩样破裂面的粗糙度信息及破坏特征基本一致，可以很好地反映不同应力路径下试样破裂面的差异性。

Abstract

The fracture surface is the most intuitive observation object after rock destruction

which contains much detailed information related to the destruction process. It is not only time-consuming and labor-consuming to analyze the fracture surface employing indoor fracture roughness scanning test

but also a large amount of white rock powder covering the final fracture surface of the specimen will lead to the loss of fracture surface information in different degrees during the scanning process. Therefore

this paper proposes a method of micro-fracture surface fitting based on numerical simulation

which simulates the deformation and failure process of marble under different stress paths by PFC3D. The extracts and reconstructs the final fracture surface of samples based on the relationship between three types of the displacement field and fracture surface in the process of crack formation. The results show that the roughness information and failure characteristics of the fracture surface fitted by this method are consistent with those of the real rock samples obtained from laboratory tests

and can well reflect the difference of the fracture surface under different stress paths.

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Keywords

references

Barton N,Choubey V.The shear strength of rock joints in theory and practice?[J].Rock Mechcanics,1977,10(1/2):1-45.?

El-soudani S M.Profilometric analysis of fractures?[J].Metallography,1978,11(3):247-336.?

Tes R,Cruden D M.Estimating joint roughness coefficient?[J].International Journal of Rock Mechanics and Mining Sciences&Geomechanics Abstracts,1979,16(5):303-307.?

Maerz N H,Franklin J A,Bennett C P.Joint roughness measurement using shadow profilometry?[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics,27(5):329-343.?

Elaqra H，Godin N，Peix G，et al.Damage evolution analysis in mortar，during compressive loading using acoustic emission and X-ray tomography：Effects of the sand/cement ratio?[J].Cement and Concrete Research，2007，37(5)：703-713.?

Han Y H，Hu D D，Matzar L.Numerical computation of elastic properties for porous rocks based on CT—scanned images using direct mapping method?[J].Journal of Petroleum Science and Engineering，2014，122：346-353.?

赵永红，黄杰藩，王仁.岩石微破裂发育的扫描电镜即时观测研究?[J].岩石力学与工程学报，1992,11（3）：284-294. Zhao Y H,Huang J F,Wang R.SEM of micro-cracking development of rock and its real-time observation?[J].Chinese Journal of Rock Mechanics and Engineering，1992，11(3)：284-294.(in Chinese)?

朱珍德，张勇，徐卫亚，等.高围压高水压条件下大理岩断口微观机制分析与试验研究?[J].岩石力学与工程学报，2005，24(1)：44-51. Zhu Zh D，Zhang Y，Xu W Y，et al.Experimental studies and microcosmic mechanics analysis on marble rupture under high confining pressure and high hydraulic pressure?[J].Chinese Journal of Rock Mechanics and Engineering，2005，24(1)：44-51.(in Chinese)?

谢和平,陈至达.分形几何与岩石断裂?[J].力学学报,1988,20(3):264-275. Xie H P,Chen Zh D.Fractal geometry and rock fracture?[J].Mechanics,1988，20(3):264-275.(in Chinese)?

Zhang Z X,Yu J,Kou S Q,et al.On study of influences of loading rate on fractal dimensions of fracture surfaces in gabbro?[J].Rock Mechanics and Rock Engineering,2001,34(3):235-242.?

刘传孝,王龙,张晓雷，等.石灰岩断口细观复杂程度的分形几何学分析[J].重庆交通大学学报（自然科学版），2017,36(7)：77-82. Liu Ch X,Wang L,Zhang X L,et,al.Fractal geometry analysis on complexity of limestone fracture mesoscale.?[J].Journal of Chongqing Jiaotong University(Natural Science)2017,36(7):77-82.(in Chinese)?

梁运培，李清淼，顾义磊，等.不同围压下页岩残余强度及破裂面特征的试验研究?[J].采矿与安全工程学报，2017，34（6）：1 179-1 185. Liang Y P，Li Q M，Gu Y L，et al.Experimental study on characteristics of post-peak residual strength and fracture surface of shale under various confining pressures.?[J].Journal of Mining &Safety Engineering，2017，34（6）：1 179-1 185.(in Chinese)?

朱焕春.PFC 及其在矿山崩落开采研究中的应用?[J].岩石力学与工程学报,2006,25(9):1 927-1 931. Zhu H Ch.PFC and application case of caving study?[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(9):1 927-1 931.(in Chinese)?

马春驰，李天斌，陈国庆,等.硬脆岩石的微观颗粒模型及其卸荷岩爆效应研究?[J].岩石力学与工程学报，2015，34(2):217-227. Ma Ch Ch，Li T B，Chen G Q，et al.A micro particle model for hard brittle rock and the effect of the unloading rock burst?[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(2):217-227.(in Chinese)?

吴顺川,周喻,高斌,等.卸荷岩爆试验及 PFC 3D 数值模拟研究?[J].岩石力学与工程学报，2010,29(増2):4 082-4 088. Wu Sh Ch,Zhou Y,Gao B,et al.Study of unloading tests of rock burst and PFC 3D numerical simulation?[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(Sup 2):4 082-4 088.(in Chinese)?

Zhang X P,Wong L N Y.Displacement field analysis for cracking processes in bonded-particle model?[J].Bulletin of Engineering Geology and the Environment,2014，73（1）:13-21.?

Golden Software Inc.Surfer 8 user’s guide?[M].Colorado,USA：Golden,2002.?

Belem T,Homand F,Souley M.Quantitative parameters for rock joint surface roughness?[J].Rock Mechanics and Rock Engineering,2000,33(4):217-242.?

Ge Y F,Kulatilake Pinnaduwa H S W,Tang H,et al.Investigation of natural rock joint roughness?[J].Computers and Geotechnics,2014,55:290-305.

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