摘要
为保证三峡永久船闸高边坡施工期和运行期的安全，布置了比较齐全的监测项目和监测设施。监测资料分析表明，边坡整体稳定性良好。局部块体失稳是边坡的主要破坏形式，采取适当的加固处理措施后可保证其稳定性。二闸室至三闸首中隔墩顶部产生并一度发展的裂缝，随着闸槽开挖结束而呈明显的收敛趋势。边坡岩体时效变形量值不大，持续时间不长。
In order to guarantee the safety of TGPs permanent shiplocks excavated high slope during the construction and operation period, from the beginning of construction in April, 1994, comparatively complete monitoring items and facilities have been installed. The analysis on the monitored data demonstrates that the slope is stable in whole. The major failure mode of the slope is the local rock block lossing stability, and after taking suitable strengthening countermeasures, the slope stability can be reached. Some cracks occurred and developed for a time on the top of rock central wall between locks from second lock chamber to third lock chamber. The crack openings assumed an obvious shrinkage trend along with the termination of chamber excavation. The time effect deformation value of the rock mass is small and the duration is short. It is predicted that the deformation of the rock slope will not influence the normal operation of the shiplocks mitre gate.
出处
《人民长江》
北大核心
1999年第10期1-4,共4页
Yangtze River
关键词
多级船闸
高边坡
安全监测
边坡稳定性
Flight of lock High side slope Safety monitoring Slope stability Systematization of observation Sanxia Multipurpose Project
