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对发电厂中由桩基支撑的大直径引(排)水钢沉管进行了结构分析和计算.结果表明:应在管道支座截面处设置支撑环;支撑环截面的环向抗弯刚度IZ对管身的应力水平及变形量影响很大;IZ与该支座支撑范围内管段的管壁环向抗弯总刚度IP之比不宜小于10.
The structural analysis and calculation of large-diameter water-immersed steel tube supported by pile foundations in power plant are carried out. The results show that the support ring should be set at the cross-section of pipe support; the circumferential bending rigidity IZ The body of the stress level and the amount of deformation is greatly affected; IZ and the support within the support section of the pipe wall bending ring stiffness of the total stiffness of the IP should not be less than 10.