中文摘要：

土壤火山灰成胶状黏土(SB ) 垂直泥浆截止墙是为城市的工业污染地点的一个有用处理。由于泥土重的金属相互作用，重要变化将在 SB 截止墙的设计行为发生。然而，以前的学习沿着把 solidum 氯化物或钙氯化物用作目标沾染物被限制到 kaolinitic 土壤或 montmorillonitic 土壤。在这个工作，一系列 oedometer 测试被进行在压缩的可能性和白陶土火山灰成胶状黏土(KB ) 的渗透上调查铅(Pb ) 的效果混合物，一个简化模型在原处 SB 截止墙装填。另外，沉积测试被进行解释从土壤织物的观点控制压缩的可能性和渗透的变化的机制。为 oedometer 测试和沉积测试的污染 Pb 的 KB 混合物被干燥质量与 0， 5% ， 10% ，和 15% 的火山灰成胶状黏土内容准备，并且他们基于设计 Pb 集中和 solid-to-solution 比率与铅硝酸盐答案的预定体积被混合。Pb 集中与 solid-to-solution 比率作为 0， 0.1， 0.5， 1.0， 5.0， 10，和 50 mg/g 被控制近似 0.5。有 0， 5% ，和 10% 的火山灰成胶状黏土内容的准备 KB 混合物为沉积测试被选择。他们是 freeze-dried 并且与 10 g/100 mL 的 solid-to-solution 比率与 DDI 混合了。结果显示混合关于 Pb 集中更加改变了的 KB 的那 pH，压缩的可能性，和渗透。这被结束 KB 混合的织物，取决于受到 pH 和 Pb 集中的不同范围的粒子粒子相互作用，管理沉积行为和渗透。液体的结果限制(w < 潜水艇 class= “ a-plus-plus ” > 自从它仅仅是离子依赖者的， L ) 不能以沉积行为被解释。

英文摘要：

Soil-bentonite （SB） vertical slurry cutoff wall is a useful treatment for urban industrial contaminated sites. Due to the clay-heavy metal interaction, significant changes would occur in the engineering behavior of SB cutoff walls. However, previous study is limited to kaolinitic soils or montmorillonitic soils along using solidum chloride and/or calcium chloride as target contaminant. In this work, a series of oedometer tests were conducted to investigate the effects of lead （Pb） on the compressibility and the permeability of kaolin-bentonite （KB） mixtures, a simplified model of in-situ SB cutoff wall backfills. In addition, sedimentation tests were conducted to interpret the mechanism controlling the change of compressibility and permeability from the perspective of soil fabric. The Pb-contaminated KB mixtures for oedometer tests and sedimentation tests were prepared with bentonite contents of 0, 5%, 10%, and 15% by dry mass, and they were mixed with pre-determined volume of lead nitrate solution based on designed Pb concentration and solid-to-solution ratio. The Pb concentration was controlled as 0, 0.1, 0.5, 1.0, 5.0, 10, and 50 mg/g with a solid-to-solution ratio of approximate 0.5. The prepared KB mixtures with bentonite contents of 0, 5%, and 10% were chosen for the sedimentation tests. They were freeze-dried and mixed with DDI with a solid-to-solution ratio of 10 g/100 mL. The results indicate that pH, compressibility, and permeability of KB mixture changed considerably with respect to Pb concentration. It is concluded that the fabric of KB mixture, depending on the particle-particle interaction subjected to different ranges of pH and Pb concentration, governs the sedimentation behavior and permeability. The results of liquid limit （WE） cannot be explained in terms of the sedimentation behavior since it is only ionic-dependent.