h a m m e r e r – s y s t e m – m e s s t e c h n i k Ing. Max Hammerer

Activities:Consulting and advisory service for Water- and Energy Supply Companies

Activities in the market and experience in this field since 1974Special sectors: Leak detection, damage statistics, rehabilitation procedures

Cooperation partners: Technical University Dresden, Faculty for City developement, Prof. Dr. R. Herz

IT-Center for Supply Networks, Hartl/Wehr Düsseldorf, Dipl.Ing. R. WehrIT-SoftwareCenter for GIS, Hemminger SHH Esslingen, Dipl.Ing. G. Voß

Special products:PARIS: Freely PARameterisable Information System G I S

PROFI: Programme for Control and Maintanance of Networks INFRA: Programme for prognoses of rehabilitation needs ROKA: Programme for Network Calculation on GIS basis

Offices in Klagenfurt/Austria and Düsseldorf/Germany

h a m m e r e r – s y s t e m – m e s s t e c h n i k Ing. Max Hammerer

Active Membership:German Association for Gas- and Waterworks DVGW (network rehabilitation)

Austrain Association for Gas- and Waterworks ÖVGW (coordination group)International Association of Waterworks in the Danube Catchment Area IAWD

Austrian Danube Water Cooperation (Cooperation of Industy and Water companies)

Country activities:Austria: Water, Gas, Energy and Sewerage companies

Germany: Water, Gas, Energy and Sewerage companiesItaly, Luxembourg: Water and Gas companies

Reform countries in Southeastern Europe: Bosna-Herzegovina, Bulgaria, Croatia, Hungary, Serbia&Montenegro, Romania,

Slovakia, Slovenia, Czech Republic: Water and Sewerage companies

h a m m e r e r – s y s t e m – m e s s t e c h n i k Ing. Max Hammerer

Selected References:Water network Vienna 3.400 km Gas network Vienna 3.300 kmWater network Innsbruck 860 km Gas network Innsbruck 690 kmWater network Graz 945 km Gas network Graz 540 kmWater network Udine 640 km Water network Triest 920 kmWater network Munich 3.800 km Gas network Munich 2.400 kmWater network Essen 1.860 km Gas network Essen 1.440 kmWater network Gotha 1.100 km Water network Nürnberg 2.140 kmWater network Sindelfingen 340 km Water network Luxembourg 410 kmWater network Ankara 4.100 km Water network Belgrade 2.100 km

Activities: Leakage controlDamage statisticPerformance indicatorsRehabilitation and replacement strategyProgramme for network control and maintananceAdvising for modern operation management on GIS basis

Computer aided rehabilitation strategyfor supply pipeline systems

´on basis the pipe groups

and pipe sections

Computer aided rehabilitation strategyfor supply pipeline systems

G I S - Databasepipe data – damage data – graphical data

Pipe groups

Existing pipe analysisDamage analysis

Damage prognosis

Replacement rate–50 years Pipe sections + graph

Damage rate-pipe sectionDamage prognosis

External criteria register

Pipe replacement / year

Selection for rehabilitation

Rehabilitation method

pipe materialrehabilitation criteria

economic aspects

Step 1

Step 2

Step 3

Infr.Pro

Infra.Plan

Infra.Reha

Damage data Pipe data Network grafic

Infra.statDamage analyse

Damage prognose

Infra.ProRehabilitation rate

Strategies

Infra.PlanNetwork

rehabilitation p.a.

Infra.PlanDetail planing

in the street

Hydraulic networksimulation foractual diameter

GIS

6 steps for rehabilitation of pipes

Damage analyse

Rehabilitation strategy

Rehabilitation priorities

Detail planing for one pipe

Hydraulich network analyse for actual diameter

Pipe groupes Pipe sectionsLeitungsbestand

Infra-System

Teplice 7249 km 33 Jahre

Mannheim 960 km 36 Jahre

Karlsruhe 807 km 39 Jahre

Stuttgart 1158 km 36 Jahre

Innsbruck 245 km 28 Jahre

Wien 2533 km 27 Jahre

Zürich 1081 km 45 Jahre

Gera 960 km 45 Jahre

Erfurt 318 km 48 Jahre

Mainz 673 km 29 Jahre

Examples of existing networks and their service times

30 20 10 0 10 20 30

26-50

51-75

1-25

76-100

101-125

126-150

151-175

176-195

Alter2070

Länge in km

Alter

101-125

76-100

51-75

26-50

1-25

1875

1900

1925

1950

1975

2000

2025

2050

2075

2100

Jahrgänge(5 Jahre) 2000

30 20 10 0 10 20 30Länge in km

30 20 10 0 10 20 30

1-25

26-50

51-75

76-100

101-125

126-155

Alter2030

Länge in km

Prognosis of the network age and the replacement

Rehabilitation concept for rehabilitation needs on the basis of pipe groups

Kohorten-Pipe life model

I N F R A

Calculating of theoperation time

Rehabilitation-options

NetworkDamage data

NetworkPipe data

Cost of theprojects

Network simulationfor future planing

Network simulationExisting situation

Results:Quantity of renewal

Limited operation timeDamage development

Actual pipe dataRehabilitation costs

Analysis of the existing pipe dataPipe groups and construction period

• Underground• Pipe material• Number of service pipes• Age of the pipe• Pipe connections• Isolating of the pipe• Traffic in the street• Influences of construction works• Quality of pipe construction• Operation pressure of the medium

Influences of damages

Damage rate on mians Damages on service pipes Diameters in mm Materials

Analysis of the damage data over a longer periodDamage development over 17 years

ExamplesAnalysis of the damage data over a longer period

Damage analyse for Steel pipe group Damage analyse for cast iron pipe group

Prognosis simulation of existing pipegroups

Concentration of damageson basis the age of pipes

Determine of the critical damage rateand the risc range of pipes

Determination of the forecasted age with standard tolerance

Evaluated service time andresidual service life of all pipe groups

Survial function

Failure rateDistribution of the age

Residual service life

Determine of the ageing function of one type of pipes

Age of the pipe

Age of the pipe

Age of the pipe

Age of the pipe

Res

idua

l ser

vice

life

in y

ears

Future rehabilitation needsEvaluated by Infra.Pro

Existing rehabilitation activities andforecated future rehabilitation needs

Future rehabilitation needs

0,5%

1,0%

1,5%

2,0%

Computer aided selection of efficientrehabilitation projects on the basis og pipe sections

Evaluated by infra.planCriteria catalog of infuences

for rehabilitation projects Presentation of results in GIS

Determination of pipe sections for rehabilitationEvaluation by Infra.Plan with GIS-data

Numeric data presentationof the pipe sections needed for rehabilitation

Methods for the rehabilitation of pipelines

Rehabilitation of pipes Renewal of pipes

Tube relining Cement relining Pipe constructionClosed replacement

PE-LiningClosed lining

Berst-liningPress-pull-lining

Repair campaigns Rehabilitation

Cleaning of pipes

Maintenance

Table to select the right rehabilitation method for rehabilitation

Supply system

Pipe data Service pipe dataFitting data Inhabitants

Loss control

Repairs

Damage statistic Damage analyse

Key parameter Key parameter

Loss dynamik Damage dynamik ForecastService time

DECISIONReplacementRehabilitation

MaintananceRepair costs

CriteriaRehabilitation - Repair

Investment Operatingexpenditure

Decision for Investment / Operating expenditure

Distance to buildings

Strategy: Rehabilitation on basisThe evaluated prognosies needs

Costs and benefit Bilance

Break-Even: 2022

-100.000.000 €

-50.000.000 €

- €

50.000.000 €

100.000.000 €

150.000.000 €

200.000.000 €

250.000.000 €

300.000.000 €

2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050

-40.000.000 €

-30.000.000 €

-20.000.000 €

-10.000.000 €

0 €

10.000.000 €

20.000.000 €

30.000.000 €

40.000.000 €

50.000.000 €

2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050

Investitionskosten Reparaturkosten Verlustkosten

WI-Kosten Eingesparte Reparaturen Vermiedene Verluste

Economic factsfor rehabilitation procedure

Time shedule and realisation stepsfor implementation a rehabilitation concept

1. Definition of the goal 6 months

2. Definition of the basis data

3. Identification of supply companies for a pilot project

4. Analysis of the data from the defined network and and prognosis

of the residual service life of the existing pipe material 6 months

5. Presentation of the future rehabilitation needs

6. Selection of pipe sectors for rehabilitation 6 months

7. List of all relevant methods for the rehabilitation of water pipes

8. Assessment of these rehabilitation methods 6 months

9. Proposal of recommended priorities for methods of rehabilitation

10. Recommendation for a rehabilitation strategy 6 months