海冰与孤立桩柱碰撞破碎模型

Failure Modes and Damage Processes of Sea Ice in front of the Isolate Cylinder Pile

本文对辽东湾冰原冰与孤立桩相互作用过程进行了研究，根据高速率下冰原冰的非开裂挤压脆性破坏过程特点，将整个冰与桩柱相互作用过程分为三个阶段，通过一些适当的简化和假设，提出了这三个不同阶段孤立桩前冰的破碎过程模型，利用此破碎过程模型结合格应的力学模式计算冰与桩住相互作用力随时间的变化。实测资料与模拟计算值比较，其结果符合较好，因此该破碎过程模型具有较好的可实用性。

Interactions of the ice-field in Liaodong Bay with isolated cylinder pile is studiedin this paper.A brittle crushing failure process mode of the ice-field in front of the isolated cylin-der pile is presented.Interactions of the ice-field with the cylinder pile is divided into three phases,when ice moves at high and medium speeds. The phases are established for three differentmodes under some simplifications and assumptions,The failure process mode with mechanicalmodel can be used to calculate ice force variation on isolated cylinder pile. The calculated value arecompared with field measured value,the results show that the simulated result is very good and the mode can be used in calculation.