Analyse and Evaluation of Deformation of Structural Joint and Leakage at Qiaoqi Dams Foundation Gallery
In the Qiaoqi dam,the deformation of structural joints between monitor gallery and grouting tunnel is a key content of dam safety monitoring.In the union anti-seepage system,the displacement of corewall and cut-off wall both have certain influence on the monitor gallerys displacement,and the monitor gallerys horizontal displacement and the settlement will increase the structural joints dislocation. This article mainly aimes at the big dislocation deformation of vertical 0+168.12 m structural joint in the junction between monitor gallery and left grouting tunnel GJ3# ,and the leakage appeared when reservoir impoundment is up to high water level.In this paper,author analyzes the data of structure joints dislocation,monitor gallerys vertical displacement and corewalls deformation,discusses the various influencing factors and their proportion which lead the large deformation of the structure joints. This article takes reservoir water depth and the aging factor as the factors which affect the dislocation.By the establishment of multiple partial regressions statistical model,quantitative analysis is carried on the dislocation of 0+168.12 m structural joint upstream and downstream direction. Thus the developing situation of this dislocation,is predicted to achieve early warning of the possible leakage situation.
Qiaoqi dam structural joint deformation and leakage
Qi Yue Cui Huidong Xiong Chunfa Lang Xingxue
Yunnan Lubuge Consulting Co.,Ltd.,No.1 at Bailong Road,Kunming 650051,China
国际会议
The 1st International Symposium on Rockfill Dams(第一届堆石坝国际研讨会)
成都
英文
767-773
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）