HBPU填缝密封胶在贵港达开灌区中干渠改造工程中的应用

摘要

结合贵港达开灌区干渠伸缩缝改造工程，总结HBPU填缝胶在渠道伸缩缝的止水应用经验，介绍HBPU的物理化学性能，简述该干渠伸缩缝应用HBPU填缝胶止水的技术方案、施工工艺及效果等。质检结果：采用HBPU填缝密封胶渠段的稳渗强度为2.604 L/m2⋅h，防渗和止水效果好。%HBPU sealant had been used in renovation of trunk canal expansion joints for Dakai irrigation zone in Guigang City. The authors summarize the application experience,make an introduction on the physic-chemical properties of HBPU sealant,present the technical program,construction technology and application effects. The re⁃sults of quality examination demonstrate good anti-seepage and water stop effects,with a steady seepage strength of 2.604L/m2⋅h.