The effects of industrial wastewater on the geotechnical properties of clayey soil and the behavior of free-headed pile driven into clayey soil and subjected to lateral cyclic loading were studied in this research. The industrial wastewater discharged as by-product from an Electrical Power Plant and the intact soil samples were collected from the same region. The clayey soil samples were artificially contaminated with 10, 20, 40, and 100% (by weight) of water used in soaking process for 30 days. The results revealed that the differences in the concentration of contaminants have only slight effects on the chemical and physical properties of soil, but significant effects on the mechanical properties, including the shear strength and compression parameters. In addition, soil contamination has nonlinear effects on the lateral load-displacement relation of pile. The lateral resistance of pile decreased with increasing concentration of contaminant in the soil. The total lateral displacement of the pile head for e/L = 0.5 was larger than that for e/L = 0.25 by 22–30% under the same loads.
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机译：研究了工业废水对黏性土的岩土力学特性的影响，以及施加于侧向循环荷载下的无头桩打入黏性土的行为。从发电厂排放的副产品工业废水和完整的土壤样品均收集自同一地区。用浸泡过程中使用的10％，20％，40％和100％（按重量计）的水对黏性土壤样品进行30天的人工污染。结果表明，污染物浓度的差异对土壤的化学和物理性质影响很小，而对机械性能（包括剪切强度和压缩参数）的影响却很大。此外，土壤污染对桩的横向荷载-位移关系具有非线性影响。桩的侧向阻力随着土壤中污染物浓度的增加而降低。在相同载荷下，e / L = 0.5的桩头的总侧向位移比e / L = 0.25的桩头的总侧向位移大22–30％。
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