基于EDEM和ANSYS联合仿真的格宾石笼护岸施工分析

Construction of gabion stone cage revetment based on EDEM and ANSYS joint simulation

格宾石笼挡土墙属于柔性结构,施工过程中变形和沉降过大容易导致平整度和高程超验收规范要求。采用离散元仿真软件EDEM和有限元仿真软件ANSYS联合仿真,对格宾石笼本身及内部散粒体系的受力、变形进行研究。石笼网箱受力具有较复杂且随机性大的特点。以研究石笼网箱的土压力为着手点,就石笼护岸变形过大的问题,提出石笼护岸墙前一定范围采用料石码砌;就沉降过大的问题,提出预留沉降或增加网箱高度。解决措施效果显著,研究成果可为类似项目提供借鉴。

Gabion retaining wall is a flexible structure that is prone to deformation and excessive settlement during construction,resulting in flatness and elevation exceeding the acceptance standards.This paper uses the discrete element simulation software EDEM and finite element simulation software ANSYS to jointly simulate the force and deformation of the Gebin gabion itself and the internal granular system.The force on the gabion mesh box has the characteristics of complexity and randomness.This paper starts from studying the soil pressure of the gabion net box,and proposes a solution to the problem of excessive deformation of the gabion revetment wall by using material and stone masonry within a certain range in front of the gabion revetment wall.Regarding the issue of excessive settlement,measures such as reserving settlement or increasing the height of the cage are proposed,which have achieved significant results and can serve as a reference for similar projects in the future.