复合桩加固液化土机理研究现状分析

Analysis on the Mechanism of Liquefied Soil Foundation Reinforced by Composite Piles

为分析复合桩加固液化土机理,利用振动台对其加固模型进行了一系列模拟试验,得到了复合桩加固液化土模式下孔隙水压力、孔压比、土压力、桩身弯矩、加速度、沉降量随振动时间的变化规律及这些参数与埋深之间的关系,通过对试验数据进行整理与分析,揭示了多个参数之间的内在联系,进一步完善了复合桩加固液化土理论,为其实际应用提供了科学依据。

To analyze the mechanism of liquefied soil foundation reinforced by composite piles,a series of simulation experiments about the reinforcement model are done by using the vibration table,and it is got that the changing rule with the vibration time of pore water pressure, pore pressure ratio,earth pressure,bending moment,acceleration,the settlement of liquefied soil model reinforced by the composite piles and the relationships between these parameters and the buried depth. By collecting and analyzing the test data,it is revealed that the internal relations between multiple parameters,further perfecting the theory of liquefied soil reinforced by composite piles,and providing the scientific basis for practical application.