三峡永久船闸高边坡锚索预应力状态监测分析

MONITORING ANALYSIS ON PRESTRESS STATE OF ANCHOR CABLE OF HIGH SLOPE OF THE TGP PERMANENT SHIPLOCKS

三峡永久船闸高边坡使用了２５０束１０００ ｋＮ和３ ８７３束３０００ ｋＮ的预应力锚索进行加固，并安装了１１３台锚索测力计对锚索的受力状态进行长期监测，在使用锚索的数量及安装测力计台数上均属世界少有。在对锚索测力计监测资料系统整理和分析的基础上，重点分析了高边坡锚索的受力状态、加固效果及预应力损失，为船闸高边坡稳定安全状态的判别提供依据，并为今后其他工程提供可资借鉴的实际应用资料。

and 3 873 bundles of prestressed anchor cables with grade of 1000 kN and 3000 kN respectively, have been employed to stabilize the high slope of the TGP permanent shiplocks and 113 sets of stress monitors have also been installed to monitor the stress state of these anchor cables. It is rare to have so many anchor cables and stress monitors for a slope in the world. Based on the interpretation and analysis of stress monitor data, the stress state of anchor cables, stabilization effect and loss of prestress are discussed, which will facilitate the safety judgment of high slope stabilization and provide practical experience for other similar projects.