让它流动

作者：Renata Barradas Gutiérrez

Hydropower is a clear source of energy fuelled by water.

圣安东尼奥水力发电厂是能够的国内能源来源provide electricity to about 45 million Brazilians。Located in the heart of the Amazon, this hydroelectric complex is the fourth largest plant in Brazil and No. 1 in sustainability as per the International Hydropower Association (IHA) evaluation.

为了建立这项努力的项目，需要用Cofferdams封闭水，以创造一个干燥的环境，以进行主要的建筑工作。在水力发电工厂竞争之后，Grupo Toniolo Company拥有critical task to remove the downstream cofferdamso the Madeira River could flow freely through the turbines to generate electricity.

To reach the full potential of the hydroelectric plant,Grupo Tonilo公司had90 days to remove the 33,000 square metres of solid rock, compact soil and clay composing the cofferdam.

With the commissioning of Consórcio Construtor Santo Antônio (CSAC), Grupo Toniolo geared up for this challenging project and set up the excavators with the Leica Geosystems 3D excavator machine control solution. The challenge of this project, however, didn’t only reside on the magnitude of the cofferdam’s volume – excavators had to be mounted on two barges to extract the material from the opaque waters of the Madeira River.

No more guesswork

Excavating with zero visibility through waterwith maximum performance and efficiency was possible for this project thanks to theLeica iXE3 3D System。IXE3面板上的信息无需依靠操作员的猜测去除COFFERDAM材料，使操作员可以完全准确地知道where to dig and how deep.

“借助Leica的3D挖掘机控制解决方案，我们确切地知道Cofferdam在哪里以及从哪里开始删除材料。操作员got it right on the first time并很容易实现very good results,” said Johnis Toníolo, owner of Grupo Toniolo. “We cannot run this kind of project without Leica’s iCON iEX3 anymore. It is like a blind man seeing again.”

Based on the bathymetric survey of the riverbed channel provided by CSAC, Grupo Toniolo designed aCAD 3D model to guide the excavation根据引用的设计。借助IEX3 3D/2D面板视图，运营商拥有完整的信息来操作挖掘机，还可以：

• Visualise the precise positioningof the cofferdam without external survey support. The iEX3 screen shows the operator the cut and fills areas in the colour map.
• Avoid overloading.The system tells the correct position of the bucket allowing blind and submerged cuts.
• Eliminate over excavation.If the desired depth is reached, the colour map in the control panel screen changes to green

No more rework

Allowing a rapid and accurate excavation in the Madeira River based on a 3D CAD model resulted in节省时间和成本。Eliminating grade checking and rework permitted the company to finish this complex jobon time。Additionally, the skilled team of operators just needed几个小时的训练to start operating the excavator without any outside cabin indication, mark on a stick, or water level

“借助Leica的Icon IEX3解决方案，挖掘机的停机时间减少了50％，我们第一次完成了工作，因此不需要返工。使用该系统将我们的产量提高了40％，”said Frederico Martins, production engineer at Grupo Toníolo.

幕后

Success on-site depends also on the preparation, transfer and processing of data.

TheLeica ConXandiCON officesolutions supported by the 3D excavator system enabled theimport and export of data from the office to the fieldand empowered远程访问现场operation

Thanks to these software technology solutions Grupo Toniolo was able to:

• Control the progress on-site，检查操作小时，并使用Icon远程信息处理从其基地的数字模型更新数字模型(CONX).
• Verify and record excavation progressdirectly on the machine screen and on the office with iCON Telematics (CONX).
• Share with their customerall on-site data, calculate volume analysis, and generate various reports with the use of iCON office.

Dare to digitalise

For this particular project, Grupo Tonilo dared to go digital with Leica’s 3D excavator machine control solution toautomate processes in a faster, more efficient and accurate way。

“By using Leica’s iCON iXE3 3D system, our company benefited for the first time from 3D CAD models and state-of-the-art GNSS technology to guide an excavator machine,”said Martins. This first contact with Leica’s 3D excavator machine control system meant a complete新工作流程for Grupo Toniolo – from the design to the operation, this project represented aninnovation关于他们如何做生意。