In recent years, construction has increased widely throughout the world, and the need for excavation and dewatering has increased dramatically. The potential for pollutants to enter soil and groundwater including chemical fertilizers, municipal landfill leachate, and hydrocarbons has also increased. The dewatering process used in the excavation can detrimentally affect the spread of contamination in the soil. In this study, the effect of different parameters on the emission of pollutants in different excavation depths has been investigated. Two software products SEEP/W and CTRAN/W are used for numerical modelling. The results show that the physical properties of soil have a significant influence on the contaminant movement. Also, it is indicated that the change in water level depth and the excavation depth have a massive effect on the contaminant migration process. Moreover, the vertical barrier can be an effective way to reduce the migration of contaminants to the excavation zone.

近年来，世界范围内的建筑工程大量增加，对挖掘和排水的需求急剧增加。污染物进入土壤和地下水的可能性也增加了，包括化肥、市政垃圾渗滤液和碳氢化合物。挖掘过程中使用的脱水过程会对土壤中污染物的扩散产生不利影响。本研究研究了不同参数对不同开挖深度污染物排放的影响。两个软件产品 SEEP/W 和 CTRAN/W 用于数值建模。结果表明，土壤物理性质对污染物运动有显着影响。还，表明水位深度和开挖深度的变化对污染物迁移过程有很大影响。此外，垂直屏障可以有效地减少污染物向开挖区的迁移。