D型软体排沉排施工中缩撕断排机理

Mechanism of shrinkage,tearing,breakage of type D flexible mattress in mattress sinking construction

以长江中游周天河段天星洲高滩守护工程为例,描述在复杂水流条件下D型软体排沉排施工中的缩撕断排现象,综合分析缩撕断排现象的不确定因素,并从受力角度深入探讨缩撕断排的机理,为复杂水流条件下软体排的设计和沉排施工提供指导。

Taking Tianxingzhou coast protecting project implemented at the Zhoutian reach of middle reaches of the Yangtze River, the paper describes the shrinkage, tearing and breakage phenomenon of type D flexible mattress in mattress sinking construction under complex flow condition, analyzes uncertain factors of the shrinkage, tearing and breakage phenomenon, and probes into the mechanism of the above-said phenomena from the angle of force loaded. The result provides a guidance for the design of flexible mattress and mattress sinking construction under complex flow condition.