矩形顶管施工的数值模拟研究

Study on Numerical Simulation of the Rectangular Pipe Jacking Construction

结合包头市阿尔丁大街地下通道顶管工程,采用三维有限元计算软件ANSYS模拟了矩形顶管施工的过程,着重分析了在动力荷载作用下的矩形顶管施工对施工现场周围土体位移产生的影响。通过研究,得到了矩形顶管施工对土体扰动的影响范围以及在横、纵两个方向上的变化规律,并与工程实测资料进行了对比,证明了数值模拟对顶管法施工有重要的工程指导意义。

Combined with the city of Baotou Arden Street underground passage pipe jacking engineering,three-dimensional finite element software ANSYS is used to simulate the process of rectangular pipe jacking construction.The analysis pay emphasis on the influence of soil displacement around the construction site of the rectangular pipe jacking construction under dynamic loads.Through research,it got the rectangular pipe jacking construction sphere of influence of soil disturbance,the variation in both horizontal and vertical direction,and compared with the measured data.It proves that the numerical simulation has important guiding significance to the pipe jacking construction.