精确铣削的基板作为安全，耐用街道的基础

作者:Ilona Bihlmayer

The civil engineering and road construction sector is facing ever more challenges. When it comes to motorway construction, public authorities require shorter build times to keep traffic jams and congestion to a minimum. Other challenges include the increasing number of heavy good vehicles due to the international movement of goods, increasing commuter traffic, the general increase in the number of individual cars on the road, and the size and weight of those cars.

For all these reasons, companies in the civil engineering and road construction sector need to be especially diligent to ensure roads are safer and more hard-wearing, and that they last longer. The planning parameters and target values for roads given by those who commission the builds should, in theory, guarantee the optimal run-off of surface water, good distribution of loads, and durability.

多亏了数字测量解决方案，这种道路更加艰难，更安全

Using digital measurement solutions in road construction helps to transfer these target values into precise actual values on the ground. For this reason, Mr Stahl, head of the surveying department at LEONHARD WEISS decided to use a digital solution from Leica Geosystems for the milling work on the renovation of the superstructure of the German A70 autobahn (BAB A70), to speed up the work and ensure it is precise.

For this project, the state of Bavaria, through the North Bavarian Motorway department, has provided the planning data and the target values to the construction company in a design guide. When it comes to renovating a road, milling off the existing surface layer is an important step. An accurately milled substrate is a prerequisite for delivering the planed asphalt base layer as detailed in the design guide with precise cross slopes and gradients.

Digitisation should increase efficiency and precision without impeding progress

“The aim of this project is to use 3D profile milling to create a base with exactly the right profile, which we can then build on,” explains Mr Stahl. He needs a system that is “ready to use quickly, so that the construction process is not brought to a standstill.”

When selecting a measurement system for the team and Stefan Stahl, easy-of-use and minimal effort required in upgrading the milling machine were also important factors.

Leica GeoSystems的入门级，GNSS支持的铣削解决方案满足了所有这些要求，因此Stahl选择了Leica Icon Site磨坊飞行员。

由于Leonhard Weiss已经使用了Leica Icon ICG70和ICG60 Construction Rovers，CC80施工控制器和Icon Site-Field软件，引入了铣削飞行员系统，这是无缝的。图标网站软件专门为建筑行业定位任务而开发，并且在所有Leica Icon-GNSS硬件上运行，在这里特别有用。

“我们的团队发现它容易操作铣公益诉讼ot. The software is intuitive, the milling process was displayed graphically and it helped us to set the milling depth accurately,” stressed Stahl. A brief on-site introduction to the system was all that was needed for the entire milling team to be able to use the system.

土木工程和道路建设的全方位数字解决方案

这样的项目越来越多地通过数字方式处理。在这种情况下，现有站点是由工程公司数字调查的，然后将数据传输到图标软件中。

The target values from the design guide were then loaded into the software, and the delta, the section that needed to be milled away, was calculated. The 2-step preview of the target and cross slope values on the main set points along the road enabled consistent milling with no unevenness.

The software’s visualisation function meant that the error-prone spray-on marking process was not necessary and it saved time and costs compared to the manual preparation process. In road construction, costs are also incurred when additional layers need to be applied if the milling has gone too deep. This is also avoided by the increased precision the system provides.

简单安装

The iCON site Milling Pilot simply requires an iCON-GNSS smart antenna, a CC80 controller and the relevant software. Positioned on the top of the milling machine, the antenna, in this case the iCON gps 70 T, sends GNSS correction data to the controller. This data is displayed graphically by the software.

Leica Geosystems的令人印象深刻的服务和支持

最初，莱昂哈德·魏斯（Leonhard Weiss）团队租用了该系统，以查看它是否适合他们的解决方案。此后不久，他们投资了自己的系统。Stahl说：“在测试阶段并安装了我们自己的系统，我们从德国Leica Geosystems团队获得的服务和支持非常有帮助。”

Stahl went on to say that, “the Leica Geosystems team set up an individual installation just for us whereby the system was powered with electricity directly from the machine so there would be no need to charge batteries.”

作为Leica Geosystems的长期客户，Stahl知道他可以依靠Leica Geosystems进行各种项目的支持，并说：“他会毫不犹豫地推荐Icon网站磨坊飞行员，以确保其精确和放松 -使用。这以及我使用过的Leica Geosystems的所有其他系统都使在建筑工地上的工作更加容易。Leica服务团队始终在那里回答我们的问题，并帮助我们优化流程。”

Within a short space of time the entire milling team at LEONHARD WEISS GmbH & Co. KG was familiar with operating the iCON site Milling Pilot.

The iCG70T is impressive, not just as a construction site rover with precise GNSS data, but also on top of a milling machine.

2步预览可实现精确的铣削结果，而不会不平衡

The Leica iCON CC80 controller uses the iCON site software to graphically display the milling depths prescribed.