沉降缝部位压力钢管相对变位的危害及应对办法探讨

Discussion on the harm of relative displacement of penstock at settlement joint and its countermeasures

阐述了压力钢管在沉降缝部位产生相对变位及其危害性,并提出了利用机组进水阀下游侧的伸缩节来消化吸收此种变位的具体技术措施。

The paper describes the harm of relative displacement of penstock at settlement joint and puts forward the technology of using the expansion joint at the downstream side of the unit inlet valve to resolve the displacement.