(1. State Key Laboratory of Hydroscience and Hydraulic Engineering，Tsinghua University，Beijing 100084，China； 2. East China Investigation and Design Institute Under CHECC，Hangzhou，Zhejiang 310014，China)
Abstract：High arch dam toe area is the focus of reinforcement design. In order to study its anchorage，anchorage mechanism of high arch dam toe，based on the deformation reinforcement theory，is farther illuminated. In this mechanism，the unbalance force of a load case is the corresponding minimal reinforcement for stability and unbalanced force direction is the optimal design of anchorage direction. Combined with this idea，the method of unbalanced force calculation and normal condition of anchorage of high arch dam toe area are presented. The mechanism is applied to numerical analysis of anchorage of Baihetan high arch dam toe，and the minimum reinforcement force and the optimal design of anchorage direction are obtained. The reasons of unbalanced force distribution law are analyzed. At the same time，geomechanical model experimental research，under large-scale (250∶1)，is carried out. From loading to failure，the displacement，strain and crack of high arch dam toe are monitored and analyzed；failure relationship between dam toe area and loading process is obtained. The experimental results and the numerical ones consistently show that left bank dam toe area of Baihetan arch dam is more vulnerable than the right ones. The research validates that deformation reinforcement theory provides scientific theoretical basis and practical analyzing method for anchorage of high arch dam toe.
官福海，刘耀儒，杨强，徐建强，杨若琼. 白鹤滩高拱坝坝趾锚固研究[J]. 岩石力学与工程学报, 2010, 29(07): 1323-1332.
GUAN Fuhai1，LIU Yaoru1，YANG Qiang1，XU Jianqiang2，YANG Ruoqiong1. RESEARCH ON ANCHORAGE OF DAM TOE OF BAIHETAN HIGH ARCH DAM. , 2010, 29(07): 1323-1332.
