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本文介绍在 BNL(Brookhaven National Laboratory)进行的,利用 FEMWA-TER 有限元程序,以2-D 垂直方式,在垂直于通用型长形浅埋沟长轴的垂直切面上,模拟低放废物浅埋沟中的水流的研究工作。模拟区约为56m(H)×34m(V),网格由513个节点和468个大小不一的四边元素组成。所模拟的浅埋沟位于包气带中,其切面约为28m(W)×10m(D),由三种材料组成:上部为导水率高的石子帽;石子帽下面为导水率低的粘土层及废物埋藏区回填土;模拟区的其它部分为原状土。通过改变边界
This paper presents a method to simulate the low-level waste of shallow radioactive waste at the vertical section perpendicular to the long axis of a general-purpose long shallow buried trench in the 2-D vertical mode by the FEMWA-TER finite element program at BNL (Brookhaven National Laboratory) Ditch the flow of research work. The simulation area is about 56m (H) x 34m (V). The grid consists of 513 nodes and 468 four-sided elements of different sizes. The simulated shallow buried trench is located in the aeration zone and its section is about 28m (W) × 10m (D). It consists of three materials: the upper part is a stone cap with high water conductivity; Of the clay layer and waste buried area backfill soil; other parts of the simulation area of undisturbed soil. By changing the border