论文部分内容阅读
结合广州市海珠区某基坑工程,研究温缩引起的基坑支护结构位移变化规律,进一步预测温缩对深基坑结构力学行为的影响,结果表明:基坑支护结构变形受温度变化影响较大,引发围护结构内力显著增大;连续墙受温缩影响程度由基坑顶至底表征出先增大后减小的规律,最大扰动点取决于内支撑位置;通过应力-温度场耦合计算预测,给出基坑变形控制标准,并提出温缩控制建议。
Combined with a foundation pit project in Haizhu District of Guangzhou City, the variation of displacement of foundation pit supporting structure caused by temperature shrinkage was studied, and the influence of temperature shrinkage on the mechanical behavior of deep foundation pit was further predicted. The results show that the deformation of supporting structure of foundation pit is affected by temperature variation Which leads to a significant increase of the internal force of the envelope. The law of the initial increase and then decrease of the diaphragm wall is mainly characterized by the influence of the shrinkage of the diaphragm wall. The maximum perturbation point depends on the position of the internal bracing. Through the stress-temperature field Coupling calculation and prediction, given control standards for deformation of foundation pit, and proposed temperature control recommendations.