Dirt Simple Paving – From String Lines to Complete 3D Machine Control Solution

案例分析

作者:理查德·戴维斯

在全球范围内,空中旅行的数量在过去70年中成倍增加。根据24航班,在一天中,超过230,000架商业航班飞行。最近的研究E. Mazareanuestimates the number of passengers travelling on scheduled flights to be over 4.72 billion in 2020; it is around 137 per cent higher than in 2004.

特别是阿拉伯联合酋长国(阿联酋)正迅速成为航空旅行的重要枢纽,阿布扎比和迪拜国际机场都争夺不断增长的联系市场。支持此操作规模所需的基础架构水平是很大的。至关重要的是,它的构造是最高标准的,并且在需要维护时任何停机时间都受到限制。

位于阿联酋的建筑公司Al NISR是飞机场建设和支持基础设施的世界领导者。该公司正在经历快速增长,并认为在争夺复杂合同时,对技术进行投资至关重要,尤其是那些涉及跑道或围裙铺路的合同。该公司以前曾在阿布扎比国际机场,阿尔·马克托姆国际机场,沙迦国际机场,艾尔·贝滕行政机场,艾尔·富查伊拉国际机场以及阿联酋的许多军事空军基地上参与阿联酋的主要项目。


从传统的弦线方法到完成3D铺路解决方案


当铺平基础设施与跑道和机场围裙一样重要时,AL NISR的目标是铺设跑道的耐受性5毫米,这意味着厚度为5 mm或更少的厚度变化,表面高度。传统上,他们利用弦线方法在铺路工作中实现了这种准确性,使用手动布置的串放入地面上,以指导放置沥青的厚度和水平。正如Al Nisr的总经理Eng。

“我们使用的是弦线 - 这限制了可能丢弃材料的卡车数量。有时人们会碰到弦线,这会导致问题。混凝土在晚上放置,现场的调查是在早晨进行的,因此,如果弦乐在晚上被击中,则将项目延迟到第二天早晨。弦有时也不准确并且可以体验下垂 - 这可能会对表面的准确性产生负面影响。使用字符串,我们最初只能一次铺平300m的长度。”

凭借几个重要的项目,例如阿布扎比的阿提哈德航空公司(Atihad Airways)经营的新机场和军事机场,Al NISR投资了Leica图标铺路混凝土机器控制系统Leica Geosystems, 部分亚搏苹果app,提高其工作效率和准确性。该公司已经意识到Leica Geosystems易于使用的解决方案,因为他们的一位工程师在英国使用了该系统,并且对性能印象深刻,并理解它代表了3D沥青铺路的完整解决方案。此外,AL NISR先前还使用了Leica Geosystems的各种调查解决方案,包括Leica TS9和TPS1200亚博5分钟快三, 随着Leica Viva GS14GNSS智能天线。他们总是对这款调查设备的可用性和可靠性感到满意,因此投资Leica Geosystems的机器控制解决方案是有意义的。


通过无绳铺路实现高准确性


Machine control systems save time and costs for a variety of heavy construction applications and are used in paving applications to avoid dependency on string lines, making work easier for operators and contractors, while reducing costs. Stringless concrete paving also increases the consistency and quality of the finished surface.

Al Nisr购买的Leica图标铺路混凝土系统由崎,防水和防水组成Leica MCP80控制面板,Leica iCR80或者TS16亚博5分钟快三总站,两个Leica MPR122360°棱镜进行指导,所有这些都支持Leica MC1软件,用于机器控制的多合一软件平台。使用该系统时,来自Al NIR的操作员发现了图形接口直观且整洁,从而使他们能够专注于手头的工作,并以所需的精度快速完成工作。Leica Conx是一个基于云的解决方案和网络接口allowi吗ng customers to visualise and validate localised reference models, survey data and constructed data, with powerful analysis tools for monitoring and reporting site productivity. Al Nisr found this feature particularly helpful, as it allowed their chief surveyor to accurately visualise progress on site from the comfort of his office.

在开始铺路工作之前,使用Leica GeoSystems的Leica GS14 GNSS智能天线和总站解决方案进行了调查。Autodesk AutoCAD Civil 3Dsoftware was used to make a model of the site, before converting into an XML file and then simply uploading it directly to the pavers.Leica Iconstruct Field Simulator被用来确保一切都在工作之前是正确的。一旦完成了铺路的部分,就可以使用Leica Geosystems GNSS设备再次进行制造的检查Leica NA2自动级别。

由于Hexagon Portfolio提供的各种软件和硬件解决方案的简单集成和互操作性,Al Nisr能够从传统的工作流程转向更连接,数字化的建筑工地。亚搏苹果app


On-going on-site support and training from Leica Geosystems


The installation of the system was supported locally by dedicated machine control staff from Leica Geosystems and their local distribution partner, GECO Engineering. Al Nisr staff needed training – Leica Geosystems staff visited and sat with the engineers and all other staff involved with the project, to ensure they were comfortable with the system. On-going support was also provided during the project.

该系统使用Gomaco GHP2800和GP2400摊铺机铺设跑道和围裙,为Al NISR提供了各种好处,效率是主要的。最初,摊铺机的每晚线性300米,但现在每晚可以执行900 m线性或每晚近2000立方米。此外,借助这项技术,测量师的作用现在更加容易,更安全。办公室中开发的铺路图案和模型可以直接上传到摊铺机上,而无需敲打任何销钉线。得益于CONX提供的可见性的提高,所有利益相关者现在都可以看待该项目,并充满信心地说,它的完成速度将比以前快得多。

首席测量师Arshad Mahmood使用机器控制的好处很明显:

“Everything is nice, we really like the system! In UAE, this system helps us to lead the market – we can now look at a project and say it can be completed in a much shorter time. I would say that we see up to three times more productivity than when we use a regular system”.


通过机器控制的预期截止日期过高


Initial calculations suggested that the Abu Dhabi airfield project could take up to 12 months, yet utilising machine control from Leica Geosystems, it took six months. With large infrastructure projects such as airfields, contractors want to complete well within deadline as this allows them to avoid significant financial punishments, and move onto other jobs.

Leveraging the wide-range products and brands of Hexagon’s heavy construction portfolio, Al Nisr is proud to be the pioneer of machine control for airfields in the United Arab Emirates. The approach increases the company’s performance, improves its reputation, and helps the business win more work.

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