板桩不同施工方法的受力形状研究

传统锚定板桩的计算方法以极限平衡的方法为基础,并没有考虑施工方法的影响。但在实际工程中施工方法对板桩的影响通常是显著的。通过物理模型试验研究板桩的某些参数在这开挖和回填这2种施工方法下的不同表现,包括板桩的位移形变、板桩墙的弯矩以及锚固力等。研究结果表明,回填法施工比开挖法施工产生了更大的板桩位移和弯矩,以及更小的锚固力。

Experimental study on sheet pile wall's behavior under different construction methods

The conventional methods, which are based on limit equilibrium approach, commonly used in the design of anchored sheet pile walls do not consider the method of construction. However, the influence of construction method in real projects is usually significant. A series of physical model experiments are conducted using both excavation and backfill methods to measure some of the parameters reflecting the behavior of sheet pile walls, including wall deformations, wall bending moments, and anchor forces. The study results indicate that walls constructed by backfill method yield significantly higher bending moments and wall deformations, but lower anchor forces.