Gongxu model works as a frame in the construction system of the underground structuregroup, and then the Gongxu model nodes in this frame are refined to Huodong model.
地下厂房洞室群施工系统以工序模型作为框架，将框架中的模拟工序节点细化为活动模型。
2
According to the system models talked above, the system simulation software for the construction of underground structuregroup is developed using the object-oriented technology.
The traffic transportation system of underground structuregroup is a kind of typical discrete event dynamic system, which is difficult to describe with analytic mathematic models.