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在压缩荷载下含共线裂纹岩石断裂破坏的实验研究 被引量:1

Experimental Study on the Fracture Properties of Rock with Collinear Cracks under Compression
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摘要 通过压缩实验,对作者以前提出的共线裂纹岩石在压缩荷载下的破坏准则进行了实验研究。以砂岩为研究材料,实验探讨了在压缩载荷下,共线裂纹体的破坏情况。实验主要研究了裂纹间距、裂纹倾角、侧压力对试件压缩强度的影响,并实验研究了裂纹表面摩擦力对试件抗压强度的影响。结果表明,裂纹间距、裂纹的倾角、裂纹表面的摩擦力及其所承受的侧压力对试件的抗压强度都有很大的影响。实验结果与作者提出的共线裂纹在压缩载荷下的扩展准则的计算结果基本吻合,表明该准则是确实可行的。 通过压缩实验,对作者以前提出的共线裂纹岩石在压缩荷载下的破坏准则进行了实验研究。以砂岩为研究材料,实验探讨了在压缩载荷下,共线裂纹体的破坏情况。实验主要研究了裂纹间距、裂纹倾角、侧压力对试件压缩强度的影响,并实验研究了裂纹表面摩擦力对试件抗压强度的影响。结果表明,裂纹间距、裂纹的倾角、裂纹表面的摩擦力及其所承受的侧压力对试件的抗压强度都有很大的影响。实验结果与作者提出的共线裂纹在压缩载荷下的扩展准则的计算结果基本吻合,表明该准则是确实可行的。
出处 《四川大学学报(工程科学版)》 EI CAS CSCD 北大核心 2012年第S2期49-51,共3页 Journal of Sichuan University (Engineering Science Edition)
基金 国家自然科学基金资助项目(51074109) 973国家重大基础研究项目(2010CB732005) 科研创新团队(IRT1027)共同资助
关键词 共线裂纹 裂纹扩展准则 裂纹间距 裂纹表面摩擦力 collinear cracks crack propagation criterion crack spacing crack surface friction
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参考文献13

  • 1朱哲明,汪元,周章涛,李碧雄,谢和平.脆性材料在压缩载荷作用下的断裂破坏准则[J].四川大学学报(工程科学版),2008,40(5):13-21. 被引量:14
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二级参考文献25

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