Investigation of installation caused interlocking failure of combined steel sheet piles

钢板桩在岩土工程中被用于挡土墙和码头墙等建筑。这种板桩的设计是基于对施工和运行状态的结构分析。不考虑因压桩、振动打桩和打桩而产生的制造影响。特别是在现代码头结构的高荷载组合板桩墙中，板桩联锁破坏时有发生。例如鹿特丹的Maasvlakte I，不来梅港的Neue Kaiserschleuse和Wilhelmshaven的JadeWeserport(JWP)。在该项目的框架内，在理论和数值研究的基础上研究了板桩的总荷载，包括安装过程对板桩的影响。这包括研究打桩导向的作用、打桩产生的热量以及作用于板桩墙上的土压力和水压力的空间分布。该项目的主要目标是制定设计规则，以减少未来建设中的连锁问题。

Steel sheet piles are used in geotechnics for retaining and quay wall constructions amongst others. The design of such sheet piles is based on structural analysis for construction and operational states. Manufacturing caused impacts due to pressing, vibratory pile driving and pile driving are not considered. Especially at highly loaded combined sheet pile walls of modern quay wall constructions often failures of sheet pile interlocking occur. Examples are Maasvlakte I at Rotterdam, Neue Kaiserschleuse at Bremerhaven and the JadeWeserPort (JWP) at Wilhelmshaven. In the framework of the proposed project the total loading of sheet piles are studied including impacts due to installation processes based on theoretical and numerical investigations. This includes investigations of the role of pile driving guide, of heat generation due to pile driving, and of spatial distribution of earth and water pressure acting on sheet pile walls. Main objectives of the project are design rules to reduce interlocking problems in future constructions.