水射流动力特性及破土机理  

Dynamic property and breaking soil mechanism of water jet

作　　者：马飞[1] 宋志辉[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083

出　　处：《北京科技大学学报》2006年第5期413-416,共4页Journal of University of Science and Technology Beijing

基　　金：北京科技大学校基金资助课题(No.00089176)

摘　　要：水射流破土效果取决于射流参数和土体参数,射流参数决定射流作用力的大小,而土体参数决定着土体临界破坏力．通过射流动力特性及其破土机理分析,揭示了射流参数与土体参数之间存在的内在联系,建立了水射流破土的理论方程．该方程解决了以往在射流破土过程中参数选取的随意性或无法确定射流参数的问题．Water jet breaking soil effect is determined by water jet parameters and soil parameters. Water jet parameters decide the water jet impact force, while soil parameters do the soil critical destructive force. Based on analyzing the dynamic property and breaking soil mechanism of water jet, the internal relationship between water jet parameters and soil parameters was discovered and the theoretical equation of water jet breaking soil was established. This equation solves the problem hard to precisely select parameters during the process of water jet breaking soil.

关 键 词：水射流 动力特性 破坏机理 土体 

分 类 号：TP69[自动化与计算机技术—控制理论与控制工程] TU74[自动化与计算机技术—控制科学与工程]