NEW APPROACHES FOR THE PHYSICAL CHARACTERIZATION OF WETLAND DEPOSITS/WELLS G+H

描述：本提案侧重于导致人类 通过从市政泵送的饮用水接触有毒化学品 1964年至1979年在沃本的威尔斯G和H。其目的是 了解有毒金属通过湿地的迁移和归宿 存款和提供更有效的方法，为未来的网站 调查拟议的研究将测量现场地层 和水力传导率的沉积物之间的阿伯乔纳河 以及G和H将按垂直比例绘制剖面图 分辨率与沉积规模相适应， piezocone可测量轴摩擦力、点阻力和穿透力 稳定贯入过程中的孔隙压力。的物理性质 湿地沉积物的特征将通过实验室测试来确定， 原状土样数值模型需要这些数据 用于解释贯入度测量，提供参考值 在特定地点进行的活动，并有助于了解 泥炭和高度可压缩的有机粘土的行为。相结合 的实地和实验室研究将用于制定新的 层状材料中渗透过程的解释方法。

Description: This proposal focuses on the processes leading to human exposure to toxic chemicals via drinking water pumped from municipal Wells G and H in Woburn between 1964 and 1979. It is aimed at understanding the transport and fate of toxic metals through wetland deposits and providing a more efficient methodology for future site investigation. The proposed research will measure the site stratigraphy and hydraulic conductivity of the deposits between the Aberjona River and Well G and H. The profiles will be developed at a vertical scale resolution which is compatible with the scale of deposition by using the piezocone which measures shaft friction, point resistance and penetration pore pressure during steady penetration. The physical properties of the wetland deposits will be characterized using laboratory testing on undisturbed soil samples. These data are required for numerical models used to interpret the penetration measurements, provide reference values at specific locations and contribute to the understanding of the behavior of peats and highly compressible organic clays. The combination of the field and laboratory studies will be used to formulate new methods of interpretation for penetration processes in layered materials.