长期中断施工的深基坑数值模拟分析及施工对策

Numerical Simulation Analysis and Construction Countermeasures of Deep Foundation Pit with Long-term Interruption of Construction

深基坑工程具有明显的时空效应,在工程施工过程中,中断施工风险会随着中断时间的增长而不断增大。结合工程实践,采用数值模拟对不同中断施工方案的影响进行对比分析,最终选择相对安全的临时全封闭板中断施工方案,并采用支撑伺服控制系统进行主动控制,实施效果良好,具有一定的参考意义。

Deep foundation pit engineering has obvious time-space effect.In the process of engineering construction,the risk of construction interruption will increase with the increase of interruption time.Combined with the engineering practice,the influence of different interruption construction schemes is compared and analyzed by the numerical simulation,and a relatively safe interruption construction scheme of temporary fully enclosed plates is finally selected,and the active control is carried out by a support servo control system.The implementation effect is good and has certain reference significance.