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布尔吉迪拜(Burj Dubai)泵抽翻译

发布时间:2012-12-22      阅读次数:1391

布尔吉迪拜(Burj Dubai)泵抽翻译

取高度达到601米---而且还可以更高!

2007年11月初,比预期的时间要早, 布尔吉迪拜(Burj Dubai)公司的普茨迈斯特(Putzmeister)超高压混凝土泵,达到601米的高度。 在这个高度,属于当今世界上最壮观的高层建筑工程,中心大楼核心混凝土结构墙体在155层。泵抽吸高度计算为高层建筑结构的垂直高度,包括管柱和固定吊杆。混凝土的实际填筑在585米的高度进行,还没有到达高层建筑混凝土末端的抽取,但已经在视线范围内。同时,预期的抽取高度,在视线范围内,混凝土泵的正常作业可以进一步向上移动到611米处(Ill. 1514-1,  -2 and 3)。

客户, Emaar 公司( 阿拉伯联合酋长国),已经成立联营企业,由三星( 朝鲜)、BeSix ( 比利时)和Arabtec ( 阿拉伯联合酋长国)三方进行管理,着手于进行建造世界上超过800米最高的大楼, 特纳建设公司(美国)负责该项目管理工作。

3 个普茨迈斯特(Putzmeister)高性能混凝土泵,一个高级的配送管道系统,4个无压载物固定吊杆以及复杂的混凝土混合料,自2005的起,布尔吉迪拜(Burj Dubai)的构架一直在建设中。由于施工进展迅速,大楼的上层结构日益狭窄,3个固定吊杆和一个固定泵已经拆除。(Ill. 1514-12)

Unimix –公司负责混凝土产品到布尔吉迪拜(Burj Dubai)的输送工作,要求有相当数量的值得信赖的专有技术和可靠合伙人。 - 决定对普茨迈斯特(Putzmeister)公司混凝土泵和吊杆系统的供应和安装进行试运行。通过早期的混凝土泵测试, 普茨迈斯特(Putzmeister)已经确定混凝土泵和管道最大输送高度为600米,产量大约为30 m3 / h。布尔吉迪拜(Burj Dubai)将从第156层起,开始使用较轻的钢材进行施工,由于静力因素,楼层混凝土高度为160层(611米高度)。

高层建筑的模拟抽取的全面初步测试
PM的准备在2005起, 采用极其费时和劳动密集型的方式,在Aichtal公司和迪拜的建筑工地。 在工地进行全面的水平管道测试,通过全面的系列试验,并采用本地PM代理德国海湾企业(参见GGE第11 页信息)的支持服务。测试是为了研究后期的混合料运转失灵,并转为高层压力抽取。试验使用BSA14000 HP-D系列高层建筑抽取泵和ZX 输送管道。
(DN 125).          (Ill. 1514-4)

同时,塔的基板和3个塔翼车装混凝土泵带有不同的吊杆。 7,000平方米 200 混凝土灌注桩(直径1.5米)支持塔体, 650 平台基座支撑两翼 (横断面0.9米)。基座最大深度为55米,铺设45,000 立方米布尔吉迪拜(Burj Dubai)混凝土基座,其中包括基板。(Ill. 1514-9)
601 m pump height at Burj Dubai – and it's getting higher!

Earlier than expected, at the start of November 2007, a Putzmeister super high pressure concrete pump at the Burj Dubai reached the record delivery height of 601 m. At this height, in the most spectacular high-rise building project in the world, a wall of the central building core was concreted on level 155. The pump height is calculated from the length of the riser secured in the structure and the vertical delivery line including the tubular column and stationary boom. The actual concrete placement took place at a height of 585 m. An end to the high-rise concrete pumping has thus not yet been reached, but is in sight. The desired pump height has in the meantime – not least in view of the way the concrete pumps have been working so smoothly - been moved further upwards to 611 m.               (Ill. 1514-1,  -2 and 3)

The client, Emaar Properties (UAE), has commissioned a consortium managed by Samsung (Korea) together with BeSix (Belgium) and Arabtec (UAE) with carrying out the construction works on what will be the highest building in the world, at over 800 m. Turner Construction (USA) is responsible for the project management.

With three Putzmeister high performance concrete pumps, a sophisticated delivery line system, four non-ballasted stationary booms and challenging concrete mixtures, the carcass of the Burj Dubai has been under construction since the start of 2005. Due to the rapid progress in construction and the narrowing building structure as it rises upwards, three of the stationary booms have in the meantime been dismantled and one of the stationary pumps removed.    (Ill. 1514-12)

A proper amount of trust in the know-how and reliability of the partner was required when Unimix - responsible for concrete production and delivery at the Burj Dubai - decided to commission Putzmeister AG with the supply and installation of the pumps and boom systems. Through earlier pump tests, Putzmeister had already determined that the concrete pumps and pipelines for delivery heights of up to 600 m were suitable at an output of around 30 m3/h. It was also known that the tip of the Burj Dubai would be erected in a lighter steel construction from level 156, for static reasons, and that only the decks would be concreted up to level 160 (611 m height).

High-rise pumping simulated in extensive preliminary tests
PM's preparations at the start of 2005 were correspondingly thorough as well as extremely time-consuming and human-resource intensive, both at the Aichtal Works and at the construction site in Dubai. On site, extensive tests were carried out with horizontally laid pipelines in a large series of tests and with the support of the local PM agent German Gulf Enterprises (GGE – see info box on page 11). The reason was to simulate the pressure behaviour and the expected friction of the concrete in the pipeline based on the later mixture breakdown and to convert it to the high-rise pumping. The tests were carried out using a series produced BSA 14000 HP-D high-rise pump and ZX delivery line
(DN 125).          (Ill. 1514-4)

In the meantime, the base plate for the tower and the three tower wings was produced by truck-mounted concrete pumps with different boom reaches. The 7,000 m2 foundation is supported by 200 concrete piles (diameter 1.5 m) for the actual tower and 650 platform piles (cross section 0.9 m) for the wings. The piles reach a depth of up to 55 m. In total, 45,000 m³ of concrete was laid at the Burj Dubai for the foundation, including base plate.       (Ill. 1514-9)

武汉翻译公司

2012.12.22

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