CAJ | 학술논문

以能量理论、数值计算结果和现场振动测试结果为基础结合大量工程实践对冷却塔高卸荷槽复式切口爆破技术的控制振动机理进行了综合分析。高卸荷槽复式切口能有效调控塔体应力状态，增大塔体倒塌过程中的解体程度和速度，降低塔体塌落触地动能，同时增大塔体触地冲击过程中促使冲击结构进一步解体的能量，并降低碰撞后转化为波动的能量，而且能改变塔体倒塌触地冲击形式和冲击过程，分散塔体触地冲击能量，延长塔体倒塌触地冲击时间，减小塔体触地冲击强度。
이능량이론、수치계산결과화현장진동측시결과위기출결합대량공정실천대냉각탑고사하조복식절구폭파기술적공제진동궤리진행료종합분석。고사하조복식절구능유효조공탑체응력상태，증대탑체도탑과정중적해체정도화속도，강저탑체탑락촉지동능，동시증대탑체촉지충격과정중촉사충격결구진일보해체적능량，병강저팽당후전화위파동적능량，이차능개변탑체도탑촉지충격형식화충격과정，분산탑체촉지충격능량，연장탑체도탑촉지충격시간，감소탑체촉지충격강도。
Here,the mechanism of vibration control for composite cut blasting technology of high load relieving groove of a cooling tower was analyzed comprehensively based on the energy theory,numerical results,the measured vibration results and engineering practice.The study results showed that firstly,this technology can adjust and control the tower body's stress state,increase the disintegration failure level and speed in the tower collapse process,then reduce the tower kinetic energy when it touches the ground;secondly,it can increase the disintegration failure energy of a shocked structure,and reduce the vibration wave energy;further more,it can change the impact forms and the impact process of a tower body,disperse the ground shock energy,extend the impact time of tower body touching the ground,and decrease the impact strength of tower body.