黔中水利高墩大跨连续刚构渡槽质量控制

Quality control of continuous rigid frame aqueduct with high pier and long span for Qianzhong Hydro Project

黔中水利枢纽一期工程总干渠4座连续刚构渡槽墩高、跨度大、荷载大、结构新颖,工程建设管理难度大。质量控制通过邀请省内外桥梁专家把脉问诊,并委托具有桥梁设计、桥梁监测、桥梁检测等资质的第三方进行施工过程监控及质量检测,完工后,经充水试验表明:渡槽应力、位移满足设计要求,施工质量良好,结构安全。

The master trunk canal of lst-stage Qianzhong Hydro Project is designed with four continuous rigid frame aqueducts each with high piers, long span, high loads and new structures, rendering much difficulties for construction management. For quality control, bridge experts inside and outside the province were invited to exam- ine and give suggestions; and the third party with the qualification of bridge design, monitoring and inspection was entrusted to supervise the construction and check the quality. Water filling test was conducted after the construction was completed. The results of test demonstrate the stress and displacement of aqueduct satisfy design requirements, construction quality is good with safe structures.