Model experimental study of toppling failure of fully-embedded anti-sliding pile

作者：Fu Xiang; Xie Qiang^*; Zhang Yong Xing; Qiu Peng; Wan Ren Feng

来源：Yantu Lixue/rock and Soil Mechanics, 2014, 35(8): 2205-2211 and 2218.

• Anti-sliding pile
• Dynamic monitoring
• Earth pressure cell
• Lateral displacements
• Mechanical characteristics
• Model tests
• Monitoring results
• Stress deformations

Based on the indoor-push-pile model experiments, the toppling failure mode and stress deformation characteristics of the fully-embedded anti-sliding pile are studied. Under the premise of the test similarly relation, the indoor model experiment-pool is established; and from loading to the toppling destruction of the whole process, the deformations of model pile are observed. Arranging earth pressure cells, steel strain gauges, concrete strain gauges, and dial indicators, and using a multi-channel dynamic measuring system to monitor pile strain, the steel strain, the displacement of pile top and the earth pressure, the mechanical characteristics of the model pile is analyzed. It is shown that, the relationship of load and lateral displacement of the pile top could be divided into 3 stages. When the anchorage depth is not enough to the monitoring results, the destruction form of the pile performs as a rigid rotation (toppling failure). The soil pressure of the pile is approximately parabolic. Maximum soil pressure is near the middle of the pile. The moment of the pile is larger around the sliding surface and smaller at the top and bottom of the pile.

• 出版日期2014