940041 Broschuere Wasserbau EN 190502 - Felbermayr€¦ · Broschuere_Wasserbau_EN_130801:F-940041...

h y d r a u l i c e n g i n e e r i n g . .h y d r a u l i c e n g i n e e r i n g .

Broschuere_Wasserbau_EN_130801:F-940041 01.08.2013 08:31 Seite 1

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h y d r a u l i c e n g i n e e r i n g .h y d r a u l i c e n g i n e e r i n g .


Getting to the bottom of itHydraulic engineering is counted among the internationally sig-nificant fields of activity in which the family-run company Felber-mayr operates. To date, this strongly expanding company divisionhas grown to include around 140 floating vessels and numerouspush boats, which could be used to process virtually the wholeof Europe's domestic water system. The multitude of serviceson offer ranges from classic dredging, ramming and drilling work,to planned excavation and bank protection work to stabilise the

water level. Moreover, general vessel transportation and routemaintenance measures can also be implemented, for instance.But this strongly expanding field of work also includes the rentingout of floating vessels. What's more, Felbermayr customers alsobenefit from the multitude of synergies to Felbermayr's othercivil engineering divisions and to the business field of transportand lifting technology.

HYDRAULIC ENGINEERING

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Used to restore and preserve waterwaysThe removal of material from standing and/or flowing waters iscounted among the most common tasks undertaken in hydraulicengineering. This work in the groundwater area calls for a prepa-ratory examination and approval from expert individuals. Whenthe work is being executed, specialist expertise, the use of a suit-

able vessel and consideration of environmental protection anddefined conditions are key. The accumulating material can beused to add to the bed load or, provided that it is suitable for sucha purpose, can also be recycled as a mineral material withinstructural or civil engineering applications.

DREDGING

At the international regatta centre in Ottensheim (UpperAustria), the stilted dredger pontoon Ludwig and the self-dumping barges were moved into position. They had tomake the channel floor suitable for racing during the WorldRowing Championships, which were about to take place.Thanks to an electronic system, the desired dredging depthcan be complied with exactly and monitored on a screen.



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Solutions tailored to waterIf hydraulic power plants are opposed to harmless shipping com-panies or a planned construction project, we have the ideal ves-sel that can implement the necessary structural measures.Using a multitude of different hydraulic drills, we rectify any un-derwater rock formations. Combined with the vessel – which isoptimised for underwater use – and our employees' know-how,

we efficiently disassemble even reinforced concrete structures,all the while taking into consideration the ecological frameworkconditions. If necessary, we also perform underwater demoliti-ons and guarantee to transport away and recycle the accumula-ting construction residue.

UNDERWATER DRILLING AND DEMOLITION WORK

Erosion in the Danube at Ottensheim in Upper Austria couldhave resulted in the minimum fairway depth falling short, dueto a rock in the fairway channel. The stilted dredger pontoonsLudwig and Milena were deployed and foul ground was recti-fied using hydraulic drills in Ottensheim in Upper Austria. Inorder to rectify the rock formation with millimetre precision,a three-dimensional GPS system was deployed. Around 600cubic metres of granite were removed in total.


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BANK PROTECTION WORK / BREAKWATER CONSTRUCTION


Biological engineering measuresOne of the essential roles played by bank protection and break-waters is protecting water shores from erosion. Bank protectioncan be designed as a simple riprap, but also as a mat. On shoresthat are at high risk of erosion, concrete bank protection someti-mes needs to be set up. Breakwaters serve to change the cross-section of a river and areset up in the midstream direction from the shore.

This increases the flow speed in the midstream, which also goeshand-in-hand with increased sediment removal to deepen the fair-way channel. In contrast, the flow is slowed down in the boundaryareas. This results in areas of slack water, which are frequently setup to restore sections of waters.


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To restore the Danube's ecological balance in Hain-burg (A), four breakwaters were set up in a new, flow-optimised shape during the course of a pilot project.The special feature here was that the breakwatersfeature a flat design and are overflowed on the shoreside even during low tide.


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Quick and efficient help in maritime disastersForces of nature, low water levels or technical malfunctions canoccasionally make rescue and lighterage deployments neces-sary. For services such as this, Felbermayr's Hydraulic Enginee-ring division has a multitude of floating vessels, such as stilted

pontoons, long-arm excavators and motor boats. But also appro-priate lifting vessels, such as work platforms and cranes, can bepromptly deployed for rescue deployments and lighterage.

RESCUE WORK

A motorised freighter that had run aground in Vienna's Freudenau power plant was lightened thanks to Horst Felix being deployed.To this end, around 400 tonnes of artificial manure had to be unloaded from the damaged ship to Horst Felix. Then, the motorisedfreighter was pulled into free water and the big packs were re-loaded with the cargo.



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Everything to do with waterIn addition to the general areas of activity in hydraulic engineering,Felbermayr has also proven itself as being a strong partner in thesense of structural steel hydraulic engineering. Felbermayr's Hy-draulic Engineering division is thereby also able to guarantee ram-ming work and on-water transportation of construction machinesin a time- and cost-efficient manner.

The necessary conditions for this are created by (among otherthings) the pontoons, which can be disassembled and also trans-ported by road. In addition to the technical possibilities, the em-ployees of the Felbermayr Hydraulic Engineering division also haveimpressive knowledge in relation to civil engineering. Customer re-quirements can thus be optimally understood and implemented.

VESSEL-RELATED DEPLOYMENTS


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RINSING AND SUCTION

The suction dredger belonging to the Felbermayr subsi-diary Reinhold Meister Wasserbau was used in the sto-rage room of the Roseggg-St. Jakob power plant. Todeepen the water level from 3.5 to 6.5 metres, around300,000 cubic metres of bed load was transported away.The job was completed in spring 2013.

A suction dredger: an individual deployed vesselWith an application depth of up to 20 metres, our suction dred-gers are suitable for deployment in Europe's flowing waters inpractically all areas of application. In addition, they can be disas-sembled thanks to their modular design and can thus be trans-ported by road. They can therefore also be effortlessly deployedon lakes and smaller waters.

Suction dredgers are primarily used to remove mud, sand orgravel from the water bed. During this process, the material istaken up using a suction head and then transported away usinga jet system. For tougher rocky formations, the cutting wheelcan also be used as an alternative to the suction head.

The accumulating material is transported to the shoreusing a so-called floating pipeline.



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Reinhold Meister Wasserbau GmbHDonaustraße 2D-94491 HengersbergTel.:+ 49 9901 9310-0Fax: +49 9901 9310-109E-Mail: [email protected]

Felbermayr Bau GmbH & Co KGMachstraße 7A-4600 Wels Tel.: +43 7242 695-611Fax: +43 7242 695-9611E-Mail: [email protected]

Müsing Wasserbau GmbHMarie-Curie-StraßeD-16321 BernauTel.: +49 3338 6058 - 0Fax: +49 3338 [email protected]

SITESYour project is in good handsDuring spring 2012, in addition to further sub-divisions, Fel-bermayr acquired the Hydraulic Engineering and CulvertConstruction divisions of the former Reinhold MeisterGroup, which is based in Hengersberg, Deggendorf. Felber-mayr has thereby expanded its existing Hydraulic Enginee-

ring segment and tapped into a new area of activity. Consi-dered from a geographical perspective, we're at home onall the waters in Europe. In this way, we are able to use ourknow-how to work on both flowing waters and inland lakes.


Felbermayr Bau GmbH & Co KG Hydraulic Engineering Division

Machstraße 7A-4600 Wels

Tel.: +43 7242 695-611Fax: +43 7242 695-9611

E-Mail: [email protected]

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