珊瑚砂岛礁钢板桩护岸结构影响因素分析

Influencing Factors Analysis of Steel Sheet Pile Revetment Structure in Coral Sand Islands

钢板桩护岸结构在珊瑚砂岛礁地区的应用并不常见。以马尔代夫维拉纳国际机场改扩建工程钢板桩护岸结构为依托,对珊瑚砂岛礁地区钢板桩护岸结构进行受力、变形研究,剖析设计关键影响因素,分析结构形式对钢板桩受力及变形的影响规律,研究结果表明:在其他影响因素不变的情况下,钢板桩高度仅对水平位移影响较突出,拉杆长度改变对结构受力、变形影响微弱,几乎可忽略;截面形式对钢板桩水平位移、侧向土压力及桩身弯矩影响均较大,应作为设计重点考虑因素。

Steel sheet pile revetment structure is not often applied to coral sand areas. Based on the sheet pile revetment part of the reconstruction and extension project of Maldives Verana International Airport,the stress and deformation of sheet pile revetment structure in coral reef area are studied. The key factors affecting the design of sheet pile revetment project are analyzed. The influence law of structure type on the stress and deformation of sheet pile is analyzed,the results show that the height of steel sheet pile only has a prominent influence on horizontal displacement when other factors remain unchanged,and the change of the length of tie rod has a very weak influence on the mechanical deformation of the structure,which can almost be neglected. The influence of section type on the horizontal displacement,lateral earth pressure and pile bending moment of steel sheet pile is greater,which should be taken as the key consideration in the design.