仿宋建筑结构基础浸水环境下的稳定性能评价

STABILITY EVALUATION OF FOUNDATION OF IMITATION SONG DYNASTY UNDER WATER EROSION

雁柏山庄建立在雁栖湖流水之上,水侵蚀可能会影响桩基础自身的结构稳定性。基于工程地质取样与力学性能测试,得到了混凝土经水侵蚀前后、各个土层的基本力学参数。利用FLAC 3D数值模拟软件,分析了混凝土经浸水前后的桩基础的稳定性。结果表明,当桩基础被水侵蚀弱化后,自身结构的最大位移值明显变大、自身结构易引起下方层土的变形,桩体与承台中的塑性区明显增大,从而降低了建筑结构的稳定性。研究结果对实际工程桩基础稳定性分析与相应的防侵蚀办法具有一定参考价值。

Yanbai Mountain Villa is built on the flowing water of Yanqi Lake.Water erosion may affect the structural stability of pile foundation itself.Based on engineering geological sampling and mechanical property testing,the basic mechanical parameters of each soil layer of concrete before and after water erosion are obtained.FLAC3 D numerical simulation software is used to analyze the stability of concrete pile foundation before and after water erosion.The results show that when the pile foundation is weakened by water erosion,the maximum displacement of its own structure becomes larger obviously,and its own structure easily causes the deformation of the soil beneath it,and the plastic zone in the pile body and cap increases obviously,thus reducing the stability of the building structure.The research results have certain reference value for the stability analysis of pile foundation in practical engineering and the corresponding anti-erosion methods.