三峡永久船闸直立坡锁口锚杆应力监测分析

Analysis on monitoring results of locked anchor-bar stress at TGP permanent lock’s vertical slope

为了解永久船闸直立坡顶锁口锚杆应力状态 ,有效地评价锚固施工质量及锚固效果 ,在部分锁口锚杆上布置了锚杆应力计 ,并进行了应力监测。监测成果表明 ,锚杆锚固效果明显 ,永久船闸二期开挖完毕后直立坡变形基本趋于稳定。

For understanding the stress state of locked anchor bars at the top of TGP permanent lock’s vertical slope,and effectively evaluating their construction qualities and anchoring effects,several anchor stress meters were located at partial locked anchor bars,and monitoring were practised. The monitoring results of stresses measured from anchor bars showed that anchoring effects of anchor bars are obvious,the deformation of permanent lock’s vertical slope basically tends towards stability.