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首页> 外文会议>Western Dredging Association Twenty-Second Technical Conference, Thirty-Fourth Texas Aamp;M Dredging Seminar, and Special Permanent International Association of Navigational Congresses Session, Jun 12-15, 2002, Denver, Colorado >BENEFICIAL REUSE SEDIMENT CHARACTERIZATION ACTIVITIES WITHIN TWO MID-ATLANTIC USACE CONFINED DISPOSAL FACILITIES
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BENEFICIAL REUSE SEDIMENT CHARACTERIZATION ACTIVITIES WITHIN TWO MID-ATLANTIC USACE CONFINED DISPOSAL FACILITIES

机译：两种中等大西洋用途密闭处置设施中的有益的再利用沉积物表征活动

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The Philadelphia District of the U.S. Army Corps of Engineers (USACE) operates and maintains upland dredged material disposal sites in New Jersey, Delaware, and Pennsylvania, including Pedricktown Confined Disposal Facility (CDF) in Salem County, New Jersey, and Fort Mifflin CDF in Philadelphia, PA. These CDFs have been used by USACE for the disposal of sediment generated from hydraulic maintenance dredging in the Delaware and Schuylkill Rivers. In Fall 2001, a sampling effort was undertaken in select areas of the Pedricktown and Fort Mifflin CDFs to characterize large volumes of dredged material. Approximately 1.7 million cubic yards of material were analyzed for a suite of chemical and geotechnical characteristics. Chemical parameters included volatiles, semivolatiles, polychlorinated biphenyls, pesticides, metals, cyanide, and diesel range organics. Geotechnical parameters included particle size analysis, moisture content, Atterberg limits, organic content, and soil classification. Additional engineering tests were conducted at a lower frequency, including compaction, permeability, shear strength, and consolidation. With the exception of areas immediately surrounding pipe outfalls (hydraulic pump discharges), the materials in the Pedricktown and Fort Mifflin CDFs are chemically and geotechnically similar. Metals and polyaromatic hydrocarbons were detected in the dredged material at both locations; however, concentrations of these constituents were less than New Jersey and Pennsylvania soil cleanup criteria, with minimal exceptions. The majority of the material was classified as high plasticity organic silt based on the Unified Soil Classification System, and contained high organic content (>10%). Potential unamended beneficial uses of this material include non-structural, non-load bearing fill applications or topsoil. Also, unamended dredged material can be used as a feed-stock of raw material in the production of numerous other products, such as lightweight aggregate or concrete blocks. Material recovered in the vicinity of the pipe outfalls was classified as either silty sand or poorly graded sand, and had lower organic content. This more sandy material could potentially be used as structural fill material.
机译：美国陆军工程兵团（USACE）的费城地区在新泽西州，特拉华州和宾夕法尼亚州运营和维护高地疏material材料处理场，包括新泽西州塞勒姆县的Pedricktown密闭处置设施（CDF）和密西根州的Fort Mifflin CDF宾夕法尼亚州费城。 USACE已使用这些CDF来处理特拉华河和舒尔基尔河水力维护疏maintenance产生的沉积物。在2001年秋季，对Pedricktown和Fort Mifflin CDF的选定区域进行了抽样工作，以表征大量挖出的材料。分析了约170万立方码的材料的化学和岩土特性。化学参数包括挥发物，半挥发物，多氯联苯，农药，金属，氰化物和柴油范围的有机物。岩土参数包括粒度分析，水分含量，阿特伯格限值，有机物含量和土壤分类。其他的工程测试以较低的频率进行，包括压实，渗透性，剪切强度和固结。除了紧邻管道排污口的区域（液压泵的排放口）外，Pedricktown和Fort Mifflin CDF的材料在化学和岩土上相似。在两个位置的挖出材料中均检测到金属和多芳烃；但是，这些成分的浓度低于新泽西州和宾夕法尼亚州的土壤净化标准，只有极少数例外。根据统一土壤分类系统，大多数材料被归类为高可塑性有机淤泥，并且有机含量高（> 10％）。该材料潜在的未经修改的有益用途包括非结构性，非承重填充应用或表土。同样，未经修正的疏material材料也可以用作生产许多其他产品（例如轻质集料或混凝土砌块）的原料。在管道出口附近回收的材料分类为粉质砂或等级不佳的砂，并且有机物含量较低。这种多沙的材料可能会用作结构填充材料。

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