针对传统平流沉淀池对高浊度来流处理效果不理想这一问题，开展了新型双层平流沉淀池在高浊度来水下的沉降效果研究。本研究设计三个沉淀池模型：下向流斜板构造双层平流沉淀池（模型A）、上向流斜板构造双层平流沉淀池（模型B）以及串联式双层平流沉淀池（模型C），通过对三个沉淀池模型在高浊度来流下开展未添加絮凝剂与添加絮凝剂的对比试验，分析新型双层平流沉淀池与现有的串联式双层平流沉淀池对高浊度来流的沉降效果，对三个沉淀池的沉降效果进行分析发现三个沉淀池中下向流斜板构造双层平流沉淀池沉降效果最好。目前关于双层平流沉淀池的模型试验研究资料较少，本文通过理论分析与模型试验为新型双层平流沉淀池在高浊度来流地区的使用提供理论基础。

In order to solve the problem of the low efficiency of the traditional horizontal sedimentation tank, the paper carried out the study on the settlement effect of a new type of double-deck horizontal flow sedimentation tank in the water of high turbidity. This study designed three tank model : to flow inclined plate structure under double-deck horizontal flow sedimentation tank (model A), to the flow on the inclined plate tectonic double-deck horizontal flow sedimentation tank (model B) and tandem double-deck horizontal flow sedimentation tank (model C) , based on the three tank model in high turbidity to shed not adding flocculants compared with adding flocculant experiment, analysis of new double-decker advection sedimentation tank with existing tandem double-deck horizontal flow sedimentation tank for high turbidity flow sedimentation effect, analyze the effect of the settlement of the three tank found three tank next to the flow inclined plate tectonic double-deck horizontal flow sedimentation tank settlement work best. At present, the data about double-deck horizontal flow sedimentation tank model test research is less, in this paper, through theoretical analysis and model test for the new double-deck horizontal flow sedimentation tank based on the use of high turbidity to flow region to provide theoretical basis.