爆炸载荷作用下的岩石损伤断裂研究STUDY ON ROCK DAMAGE AND FRACTURE UNDER EXPLOSION LOAD
林英松,阮新芳,蒋金宝,丁雁生,郑哲敏,陈力,朱天玉
LIN Ying-song~(1,2),RUAN Xin-fang~1,JIANG Jin-bao~1,DING Yan-sheng~2,ZHENG Zhe-ming~2,CHEN Li~2,ZHU Tian-yu~1 (1.China University of Petroleum,College of Petroleum Engineering,Dongying 257062,China;2.Institute of Mechanics,Chinese Academy of Sciences.Beijing 100081,China)
摘要(Abstract):
岩石爆破机理是一个复杂的问题,目前理论研究还不是很成熟。根据以往经典固体力学方法解释岩石在爆炸载荷作用下的力学行为,是无法揭示岩石爆破破碎的全过程,也难以确定岩石内的损伤和破坏程度;采用细观力学方法可以深入了解岩石内部从损伤到破碎全过程。岩石爆破损伤断裂机理是由岩石爆破机理和岩石细观损伤力学理论组成的。本文在分析研究现有岩石爆破模型的基础上,指出了现有的岩石爆破损伤模型存在的不足及发展方向;并进行了水中爆炸实验,分析了激波对水泥试样的损伤特性。
The rock blasting mechanism is a complicated subject and at present the study of its theory isn't mature.Using the ancient solid mechanics methods to explain mechanical behavior of rock under explosion load can't reveal the whole process of rock blasting,and meanwhile,it's difficulty to ascertain damage and fracture in rock.While using meso-damage mechanism and rock meso-damage mechanics can do it well.The mechanism of damage and fracture of rock blasting is composed of blasting mechanism and rock meso-damage theory.The present paper pointed out the deficiencies and development direction of the existing model of rock blasting based on the analysis of the existing damage model of rock blasting,and analyzed damage characteristic of cement sample through doing underwater blasting experiment.
关键词(KeyWords):
岩石;损伤;爆炸载荷;微裂纹
Rock;Damage;Explosion load;Micro-fracture
基金项目(Foundation):
作者(Authors):
林英松,阮新芳,蒋金宝,丁雁生,郑哲敏,陈力,朱天玉
LIN Ying-song~(1,2),RUAN Xin-fang~1,JIANG Jin-bao~1,DING Yan-sheng~2,ZHENG Zhe-ming~2,CHEN Li~2,ZHU Tian-yu~1 (1.China University of Petroleum,College of Petroleum Engineering,Dongying 257062,China;2.Institute of Mechanics,Chinese Academy of Sciences.Beijing 100081,China)
参考文献(References):
- (1)丁雁生,陈力,谢燮,等.低渗透油气田“层内爆炸”增产技术研究[J].石油勘探与开采,2001(2):90-96.
- (2)张晓春,杨挺青,缪协兴.岩石裂纹演化及其力学特性的研究进展[J].力学进展,1999,29(1):97-104.
- (3)王挥云,李忠华,李成金.基于岩石细观损伤机制的岩爆机理研究[J].辽宁工程技术大学学报,2004,23(2):188-190.
- (4)钟冬望.岩体爆破破碎损伤机理探讨[J].武汉冶金科技大学学报,1998,21(4):387-390.
- (5)邵鹏,贺永年.脆性岩石细观损伤分析与临界破坏行为[J].煤炭科学技术,2001,29(7):31-34.
- (6)杨小林,王树仁.岩石爆破损伤断裂的细观机理[J].爆炸与冲击,2000,20(3):247-252.
- (7)余寿文,冯西桥.损伤力学[M].北京:清华大学出版社,1997.
- (8)凌建明,孙均.脆性岩石的细观裂纹损伤及其时效特征[J].岩石力学与工程学报,1993,12(4):304-312.
- (9)杨小林,王树仁.岩石爆破损伤模型及评述[J].工程爆破,1999,5(3):71-75.
- (10)凌建明.压缩荷载条件下岩石细观损伤特征的研究[J].同济大学学报,1993,21(2):219-226.
- (11)王明洋,葛涛,戚承志,钱七虎.爆炸荷载作用下岩石的变形与破坏研究(Ⅱ)[J].防灾减灾工程学报,2003,23(3):9-20.
- (12)钮强.岩石爆破裂隙的形成与扩展[J].有色金属采矿动态,1979,2.
- 林英松
- 阮新芳
- 蒋金宝
- 丁雁生
- 郑哲敏
- 陈力
- 朱天玉
LIN Ying-song~(1 - 2)
- RUAN Xin-fang~1
- JIANG Jin-bao~1
- DING Yan-sheng~2
- ZHENG Zhe-ming~2
- CHEN Li~2
- ZHU Tian-yu~1 (1.China University of Petroleum
- College of Petroleum Engineering
- Dongying 257062
- China
- 2.Institute of Mechanics
- Chinese Academy of Sciences.Beijing 100081
- China)
- 林英松
- 阮新芳
- 蒋金宝
- 丁雁生
- 郑哲敏
- 陈力
- 朱天玉
LIN Ying-song~(1 - 2)
- RUAN Xin-fang~1
- JIANG Jin-bao~1
- DING Yan-sheng~2
- ZHENG Zhe-ming~2
- CHEN Li~2
- ZHU Tian-yu~1 (1.China University of Petroleum
- College of Petroleum Engineering
- Dongying 257062
- China
- 2.Institute of Mechanics
- Chinese Academy of Sciences.Beijing 100081
- China)