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首页> 外文期刊>Journal of JSCE >A SYSTEM FOR SPRAY-BASED CONSTRUCTION OF HIGH-DENSITY LAYERS WITH LOW PERMEABILITY FOR RADIOACTIVE WASTE DISPOSAL FACILITIES
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A SYSTEM FOR SPRAY-BASED CONSTRUCTION OF HIGH-DENSITY LAYERS WITH LOW PERMEABILITY FOR RADIOACTIVE WASTE DISPOSAL FACILITIES

机译：基于喷雾的放射性废物处置设施低渗透率高密度层构建系统

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摘要

High-density, low-permeability uniform layers of bentonite are required in radioactive waste disposal facilities to prevent the migration of such waste into the biosphere via ground water. Against such a background, the applicability of high-density compacted bentonite for the construction of low-permeability layers has become a subject of international consideration. However, the construction of these layers involves major technical challenges because the limited space available means that heavy machinery cannot be used.?The authors developed a method for the construction of high-density low-permeability layers using a wet spraying approach that enables work to be performed in restricted spaces. This paper reports on research performed to verify the method, to investigate a water content adjustment technique for the bentonite used, and to study a measurement technique for bulk density, and also outlines construction quality control criteria.
机译：放射性废物处理设施中需要高密度，低渗透率的膨润土均匀层，以防止此类废物通过地下水迁移到生物圈中。在这样的背景下，高密度压实膨润土在低渗透性层的构造中的适用性成为国际关注的课题。但是，这些层的构造面临重大技术挑战，因为可用的空间有限，无法使用重型机械。作者开发了一种使用湿式喷涂方法构造高密度低渗透性层的方法，该方法可实现以下目的：在有限的空间内进行。本文报告了为验证该方法而进行的研究，研究了所用膨润土的含水量调节技术，研究了堆积密度的测量技术，并概述了施工质量控制标准。

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