摘要
Abstract
The entire section of aqueduct water filling test work was carried out according to the scheduled plan for checking the quality and security of Shahe aqueduct structure of South-to-North Water Diversion Project. In the test,72 quality defects were found out caused by four types of quality problems,such as groove crack,water stop seam,construction seam and bolt hole. As a whole,the quality of concrete con-struction and sealing was good and quality defects did not affect on the engineering structure safety. Aqueduct structure could meet the re-quirements of normal use after comprehensive concrete grouting and surface processing. In the overall monitoring of aqueduct deformation and the stress-strain during the water filling test,the maximum deflection was 2. 90 mm,the largest settlement was 18. 72 mm and the maximum differential settlement was 5. 53 mm. Shahe aqueduct prestressed tank body structure was in compression state under various operating condi-tions,and the stress-strain of ordinary reinforced concrete tank body structure was within the scope of the permit. Water filling test shows that the whole Shahe aqueduct structure is security and stabile,and is operated smoothly under the design conditions.关键词
充水试验/结构可靠性/沙河渡槽/南水北调中线工程Key words
water-filling test/structure reliability/Shahe aqueduct/Middle Route Project of South-to-North Water Diversion分类
建筑与水利
