Theoretical analyses and practice show that it is not need to set expansion joints when the out pipe meets the radial compensation requirement and the support meets the requirement.
Theoretical analyses and practice show that it is not need to set expansion joints when the out pipe meets the radial compensation requirement and the support meets the requirement.
理论分析和实际应用表明，在引出管满足径向补偿要求和支架做法满足要求的条件下，可以不设立管伸缩节。