The numerical simulation to model fallure of brittle rock with prefab crack

WANG Shi-min; LIU Feng-jun; YE Fei; LI Peng

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The numerical simulation to model fallure of brittle rock with prefab crack

更新时间：2026-06-25

- The numerical simulation to model fallure of brittle rock with prefab crack
- Vol. 27, Issue S1, (2006)
- 作者机构：
  
  1. 同济大学地下建筑与工程系,上海,200092
  2. 河南科技大学建筑工程学院,洛阳,471003
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU452
- Online First：15 December 2006，
  
  Published：2006
- 稿件说明：
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WANG Shi-min, LIU Feng-jun, YE Fei, et al. The numerical simulation to model fallure of brittle rock with prefab crack[J]. 2006, 27(S1).
DOI：

WANG Shi-min, LIU Feng-jun, YE Fei, et al. The numerical simulation to model fallure of brittle rock with prefab crack[J]. 2006, 27(S1). DOI：

摘要

岩石是经过变形、遭受过破坏的地质体。在外界荷载条件下岩石内部缺陷引起的渐进性破坏，这个过程与材料本身存在的缺陷有着密切的关系。应用数值模拟方法对含有预制裂纹的脆性岩石的破坏规律进行了初步的研究，分析了裂纹的存在对岩石破坏的影响机制。研究发现，在对带有预制裂纹的岩石试件进行加载试验过程中，预制裂纹的存在成为了影响岩石破裂方式的主要因素。与之相比，由材料非均质性所造成的影响便成了次要因素，而对于含有双预制裂纹的岩石试件裂纹的间距是影响岩石破坏型式的重要因素。

Abstract

The rock is a geological media that underwent distortion and destroy. The failure of rock is progressive failure process that is conduced by the inner flaws under the condition of the outside load. This process has intimate relation with the media’s inner flaws. The pilot study on the failure law of brittle rock with prefab crack is carried out by numerical sisulation

and the influencing mechanism of the cracks on the brittle rock failure is analyzed. Based on the study results

some conclusions can be drawn. In the failure process of the brittle rock with prefab crack under load

the existence of the cracks becomes the master factor that influences the failure mode of the brittle rock instead of the heterogeneity. And the distance between the prefab cracks is an important factor influencing the failure mode of the brittle rock with double cracks.

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