NI Hong-jian, WANG Rui-he, ZHANG Yan-qing. Numerical Simulation Study on Rock Breaking Mechanism and Process Under High Pressure Water Jet[J]. Applied Mathematics and Mechanics, 2005, 26(12): 1445-1452.
 Citation: NI Hong-jian, WANG Rui-he, ZHANG Yan-qing. Numerical Simulation Study on Rock Breaking Mechanism and Process Under High Pressure Water Jet[J]. Applied Mathematics and Mechanics, 2005, 26(12): 1445-1452.

# Numerical Simulation Study on Rock Breaking Mechanism and Process Under High Pressure Water Jet

• Rev Recd Date: 2005-08-17
• Publish Date: 2005-12-15
• The numerical simulation method to study rock breaking process and mechanism under high pressure water jet was developed with the continuous mechanics and the FEM theory.The rock damage model and the damage-coupling model suited to analyze the whole process of water jet breaking rock were established with continuum damage mechanics and micro damage mechanics.The numerical results show the dynamic response of rock under water jet and the evolvement of hydrodynamic characteristic of jet during rock breaking is close to reality,and indicates that the body of rock damage and breakage under the general continual jet occurs within several imlliseconds,the main damage form is tensile damage caused by rock unload and jet impact,and the evolvement of rock damage shows a step-change trend.On the whole,the numerical results can agree with experimental conclusions,which manifest that the analytical method is feasible and can be applied to guide the research and application of jet breaking rock theory.
•  [1] 王瑞和,倪红坚.高压水射流破岩机理研究[J].石油大学学报(自然科学版),2002,26(4):118—122. [2] 章本照.流体力学中的有限元方法[M].北京：机械工业出版社,1986. [3] 王勖成,邵敏.有限元基本原理和数值方法[M].北京：清华大学出版社,1997. [4] 王肖钧.高速碰撞中的有限元方法及其应用[J].爆炸与冲击,1993,12(1):296—304. [5] 恽寿榕.爆炸力学计算方法[M].北京:北京理工大学出版社,1995. [6] 陈庭根,管志川. 钻井工程理论与技术[M].山东东营:石油大学出版社，6—41. [7] Furlong J R,Davis J F, Alme M L.Model the dynamic load/unload behavior of ceramics under impact loading[R]. RDA-TR-00.0-0001, Arlington, V A: R & D Associates, Arlington,1990. [8] 杨军,金乾坤,黄风雷.岩石爆破理论模型及数值模拟计算[M].北京:科学出版社,1999. [9] 余寿文,冯西桥.损伤力学[M].北京:清华大学出版社,1997. [10] Lemaitre J. 损伤力学教程[M].陶春虎，倪金刚 译.北京:科学出版社,1996. [11] 徐小荷,余静.岩石破碎学[M].北京：煤炭工业出版社,1984.

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