气候危机与可持续发展视角下的地铁隧道废弃泥浆处理技术应用与研究
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https://doi.org/10.70693/cjst.v1i1.614关键词:
气候危机；可持续发展；地铁隧道；废弃泥浆；旋流除砂器和卧式螺旋离心机摘要
随着国家基础设施建设的加快，越来越多的城市开始建设城市地铁。车站和区间等土建工程在施工过程中不可避免地会产生大量的废弃泥浆，这导致了资源浪费和环境污染。绿色施工是建筑业发展的趋势和必然要求。废弃泥浆的直接排放会对环境造成极大的污染。与此同时，泥浆外运的成本非常高。因此，废弃泥浆的泥水分离零排放处理是一种趋势，也是必然的选择。 针对这一问题，研发并首次采用了旋流除砂器和卧式螺旋离心机相结合的工艺来处理围护结构产生的废弃泥浆。这种工艺将泥浆外运转变为土方外运加上清水排放。工程应用表明，与传统的每立方米110元的废弃泥浆外运单价相比，成本降低了66%。该项目总共节省了28万元。它实现了降本增效、减少污染等多个目标。从经济效益和社会效益两方面分析，该工艺具备广泛推广应用的条件。
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