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针对防灭火灌浆过程中注浆临界速度难以确定导致管道弯管段振动强烈、容易破裂、震动剧烈等问题,为了保证注浆过程中注浆管道弯管段能安全高效运行,建立了稠化胶体管道输送数学模型,采用ANSYS软件对不同入口速度工况进行了数值模拟,得到了不同入口速度条件下的压力、速度、变形、应力应变分布并确定了注浆临界速度,数值模拟结果与实验实测结果相吻合,为注浆防灭火技术提供了新的理论基础。
In order to ensure that the grouting critical speed in fire extinguishing grouting process is difficult to determine and lead to strong vibration, easy rupture and violent vibration in the pipe bend section, in order to ensure the safe and efficient operation of grouting pipe bend section during grouting, a thickening colloid The mathematical model of pipeline transportation was established. The ANSYS software was used to simulate the different inlet velocity conditions. The pressure, velocity, deformation, stress and strain distribution under different inlet velocities were obtained and the critical grouting velocities were determined. The numerical simulation results were in good agreement with the experimental results The results are consistent with the fire grouting technology provides a new theoretical basis.