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Green engineering brings urban flood relief

机译：绿色工程带来城市抗洪救灾

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摘要

River engineering specialists Fourth Element Consulting have combined hydraulic engineering with green infrastructure to provide urgently needed flood relief in the Atlasville suburb of the Ekurhuleni Metropolitan Municipality. Atlasville is a suburb of Boksburg just east of the OR Tambo International Airport in Johannesburg, Gauteng. Transformation of the area began in the early 1970s, when a natural wetland was drained to allow development of a middle-class suburb for personnel employed at the newly established Atlas Aircraft Company and affiliated industries. The flow of the natural watercourse was confined in a narrow canal and named the Atlaspruit, and the surrounding wetland area was backfilled with subsoils and building rubble on which residential houses were constructed. At the same time the area immediately adjacent to the canal was established as a recreational park. With ongoing residential and industrial development upstream of Atlasville, however, there was an increase in the generation of run-off from the catchment. This continuously increased the volume of water carried in the canalised Atlaspruit during storm events. From February 2006 the canal was no longer adequate to carry the run-off from major storms, and flooding caused severe damage to adjacent properties and households. Residents were forced to leave their homes while repairs were undertaken. Sewers and stormwater drains backfilled and overflowed, presenting health hazards. Insurance cover was refused in some instances and property values fell substantially.
机译：河流工程专家Fourth Element Consulting已将水力工程与绿色基础设施相结合，以在Ekurhuleni大都会市郊的Atlasville郊区提供迫切需要的洪水救济。 Atlasville是Boksburg的一个郊区，位于豪登省约翰内斯堡的OR Tambo国际机场以东。该地区的改造始于1970年代初，当时自然的湿地被排干，以便为新成立的Atlas Aircraft Company和相关行业雇用的人员发展中产阶级郊区。天然水道的流动被限制在一条狭窄的运河中，并命名为阿特拉斯普雷特（Atlaspruit），周围的湿地地区被底土和建筑瓦砾回填，在上面建造了住宅。同时，紧邻运河的地区被确定为休闲公园。但是，随着阿特拉斯维尔上游住宅和工业的发展，集水区径流的产生增加了。在暴风雨期间，这不断增加了带孔的阿特拉斯普雷特水的承载量。从2006年2月起，运河不再足以承受暴风雨的径流，洪水对邻近的财产和家庭造成了严重破坏。维修期间，居民被迫离开家园。下水道和雨水渠回填和溢出，对健康构成危害。在某些情况下，保险被拒绝，财产价值大幅下降。

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  • 来源
    《Civil Engineering》 |2014年第7期|25-29|共5页
  • 作者

    Raishan Naidu; Vincent Carruthers; Corlia Snyman;

  • 作者单位

    Engineering and Hydrology Fourth Element Consulting;

    Fourth Element Consulting;

    Business Development Bio-engineering Maccaferri Africa;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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