白鹤滩水电站左岸进水口基础固结灌浆抬动控制

Uplift control on foundation consolidation grouting of left-bank inlet of Baihetan Hydropower Station

在有盖重固结灌浆过程中,经常发生混凝土抬动裂缝,影响地基稳定和建筑物安全,对工程质量造成一定影响,后期处理更是费时费工。通过对白鹤滩水电站进水口基础固结灌浆抬动控制施工实例进行分析,提出了根据不同地质条件采取差异化抬动控制措施。研究结果可以为类似工程提供借鉴与参考。

During the consolidation grouting with cover-weight,the uplifting cracks of concrete occur frequently,which impact the stability of the foundation and the safety of the structure,and then cause certain impacts on the construction quality of the project,thus need a lot of time and labor to treat in the later period. Through the analysis on the actual construction case of the uplift control on the foundation consolidation grouting of the inlet for Baihetan Hydropower Station,the control measures for the differential uplifts are proposed herein in accordance with various geological conditions,so as to provide some references for the similar projects.