浅海爆炸切割时水中冲击波传播及安全措施
|
摘要
对于浅海或浅滩的作业区域,爆炸拆除作业具有较高的危险性。通过ANSYS/LS-DYNA对浅海废弃油井水下爆炸切割进行数值模拟,分析得到水面应力、质点速度随时间的变化关系,同时获取了水深与应力的关系。将实际工程操作与技术分析相结合,从爆破施工角度研究了浅海废弃油井爆炸切割时应力分布规律,并给出浅海中安全施工措施,为复杂海洋环境下实施安全爆破提供了实践经验与技术支持。
Explosive demolition has high risks when the explosive areas located in shallow sea or shallow land.Explosion cutting process of abandoned oil wells in shallow sea was simulated numerically by ANSYS/LS-DYNA.The relations of water surface pressure,particle velocity with time were gained.More-over,the relations of water pressure with water depth were also gained.Combining actual engineering operation with technical analysis,stress distribution laws to explosive cutting of abandoned oil wells in shallow sea were studied from the aspect of blasting construction,and safe measures of the blasting construction in shallow sea were put forward.All of which provide practical experience and technical support for safe blasting under complex sea environment.
Explosive demolition has high risks when the explosive areas located in shallow sea or shallow land.Explosion cutting process of abandoned oil wells in shallow sea was simulated numerically by ANSYS/LS-DYNA.The relations of water surface pressure,particle velocity with time were gained.More-over,the relations of water pressure with water depth were also gained.Combining actual engineering operation with technical analysis,stress distribution laws to explosive cutting of abandoned oil wells in shallow sea were studied from the aspect of blasting construction,and safe measures of the blasting construction in shallow sea were put forward.All of which provide practical experience and technical support for safe blasting under complex sea environment.
引文
[1]张立,丁华,杨玉成.废弃油井多重套管爆破拆除的设计与实践[J].爆破器材,2001,30(1):32-35.
[2]徐永胜,刘家骢.油气井中的切割弹研究综述[J].爆破器材,2003,32(2):26-30.
[3]李晓杰,江德安,闫鸿浩,等.大型聚能切割器对浅海废弃油井的爆破拆除[J].辽宁工程技术大学学报(自然科学版),2008,27(增刊):136-138.
[4]顾文彬,郑向平,刘建青,等.浅层水中爆炸冲击波对混凝土墩斜碰撞作用试验研究[J].爆炸与冲击,2006,26(4):26-30.
[5]中华人民共和国标准.爆破安全规程(GB6722-2003)[S].北京:中国标准出版社,2004.
[6]库尔P.水下爆炸[M].北京:国防工业出版社,1960.
[7]宗琦,汪海波,周胜兵.爆破地震效应的监测和控制技术研究[J].岩石力学与工程学报,2008,27(5):938-945.
[8]江德安,李晓杰,闫鸿浩.一种新型聚能爆破切割水下废弃油井方法的探索[J].爆破器材,2008,37(3):7-10.
[9]时党勇,李裕春,张胜民.基于ANSYS/LS-DYNA 8.1进行显示动力分析[M].北京:清华大学出版社,2005.
[2]徐永胜,刘家骢.油气井中的切割弹研究综述[J].爆破器材,2003,32(2):26-30.
[3]李晓杰,江德安,闫鸿浩,等.大型聚能切割器对浅海废弃油井的爆破拆除[J].辽宁工程技术大学学报(自然科学版),2008,27(增刊):136-138.
[4]顾文彬,郑向平,刘建青,等.浅层水中爆炸冲击波对混凝土墩斜碰撞作用试验研究[J].爆炸与冲击,2006,26(4):26-30.
[5]中华人民共和国标准.爆破安全规程(GB6722-2003)[S].北京:中国标准出版社,2004.
[6]库尔P.水下爆炸[M].北京:国防工业出版社,1960.
[7]宗琦,汪海波,周胜兵.爆破地震效应的监测和控制技术研究[J].岩石力学与工程学报,2008,27(5):938-945.
[8]江德安,李晓杰,闫鸿浩.一种新型聚能爆破切割水下废弃油井方法的探索[J].爆破器材,2008,37(3):7-10.
[9]时党勇,李裕春,张胜民.基于ANSYS/LS-DYNA 8.1进行显示动力分析[M].北京:清华大学出版社,2005.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心