ppt-1736 nabralift pile foundation - nabrawind

NABRALIFT PILE FOUNDATION

ION AROCENA DE LA RÚAProgram Manager+34 670 366 [email protected]

Bremen, August 27th 2019PPT-1736 Rev. /

2

AGENDA

1. NABRALIFT INTRODUCTION• XXL Tower Challenges• Nabralift Technology

2. NABRALIFT FOUNDATION PORTFOLIO• Foundation Alternatives• Adaptation to Soil Characteristics

3. NABRALIFT PILE FOUNDATION DESIGN• Pile Foundation Design Basis• Cost Savings

4. ONGOING PROJECTS• First Pile Foundation• Nabralift Pipeline Forecast

3

Cost IncreaseExponential Cost

Most Expensive Component HH>120

Installation RatesSlow Wind Farm Installation Rates

Inefficiency Time Increase

Assembly CranesLack of Availability

Large Mobilization and Rental Costs

LogisticsRoads / Bridges Limiting Concepts

High Logistic Cost

WTG IntegrationControl Challenges in Soft-Soft Towers

Soft-Stiff Unfeasible for XXL Steel Tow.

Nabralift Description1 NABRALIFT® INTRODUCTION

4

Nabralift Description

Tower Transition

Framed Structure

Foundation

1 NABRALIFT® INTRODUCTION

5


6

GAILDORF (ALE) VIINAMÄKI (FIN) RENANIA (ALE) ESLAVA (SPN)178m 175m 164m 160m


8

Easy IntegrationSoft-Stiff for HH>180m

Standard Interface

Ultra Low CostFoundation / Tower Components

Logistics / Assembly

Fast AssemblySelf-Erection in 3 days / Prefab Found.

Higher Wind Speeds for Erection

Self ErectionNo Large Cranes

Low Occupation of Small Cranes

Minimum LogisticsSized for Standard Containers

Optimum Packaging

Assembly Platform

Tower Foundation

Tower Components

Tower Logistics

Tower/WTG InstallationTOTAL-22%

160m Standard Steel Tower 160m Nabralift

-50%

-60%

-10%

-30%

-25%


9

CO2 Emissions ReductionMassive Concrete & Steel Reduction

Steel

Concrete

Concrete

Steel

-70%

160m Hybrid Tower

Concrete

Steel

160m Nabralift Tower

Foundation

Tower

200 towers/year:

savings equivalent to 120 000 UE-people emissions

Footprint1000m2 reduction of assembly platform

-50%

Removable & recyclable structureSteel to be reused in future structures

Concrete tower waste after demolition Nabralift components after disassembly


10

AGENDA





11

2 NABRALIFT® FOUNDATION PORTFOLIOInternal Loads Distribution

12

Foundation Portfolio

Gravitational FoundationStandard Wind Solution

Deep FoundationsFast & Disruptive Cost

Piled FoundationsStandard Soil

Anchor RockBedrock in Surface

13

Gravitational FoundationStandard Wind Solution

Simple Foundation Interface3x44 studs for 4MW-HH160

Preassembled Bolt CagesFast Installation on Site

Light Steel Reinforcement3x14T steel for 4MW-HH160

Low Concrete Volume40% reduction

14

Technology Basis

• Solution for Wind Turbines• Optimized for Nabralift

10-15m

0-15m

Fast Solution1 week / foundation

Minimum Cost for Hard Rock-50% vs wind rock found.

Anchor RockBedrock in Surface

12-15m

15

Pile FoundationStandard Soil

Technology Basis

• Design: offshore jackets• Process/Cost: civil works

10-15m

0-15m

Fastest Solution4 days / foundation

Minimum Cost-60% vs std wind foundations

16

12%

63%

25%

Gravitational Pile Anchor Rock

P

P

A

P

G

P

P

A

2 NABRALIFT® FOUNDATION PORTFOLIOApplicability as per Real Geotechnical Studies

17

AGENDA





18

Pile Design (4MW-160m)Diameter (D) 1.5mDepth (L) 5MPa Rock 20m

10MPa Rock 15m15MPa Rock 15m

Pile Part List (10MPa Rock)Concrete 80m3

Reinforcement Steel 21TM36 Bolts (1.5m) 132udAnchor cage plates (250kg) 6ud

D

L

Pile Foundation Design3 NABRALIFT PILE FOUNDATION

19

Materials & Equipments3 NABRALIFT PILE FOUNDATION MANUFACTURING PROCESS

Pile Reinforcement

Auxiliary Digger Kelly

Auxiliary Crane (60T)

Bolt Cages

Concrete

20

3 NABRALIFT PILE FOUNDATION

1.-Drilling5MPa Rock 6h10MPa Rock 8h15MPa Rock 15h

Pile Foundation Manufacturing Process

21


2.-Reinforcement Installation2h/pile


22


3.-Concrete pouring1h/pile


23


4.-Concrete setting


25

3 SUMMARY OF SAVINGSMaterial Savings

0

20

40

60

80

100

120

140

0

100

200

300

400

500

600

700

NBW Pile Foundation NBW Grav. Foundation Standard Foundation

Mas

s [T

]

Volu

me

[m3]

4MW-HH160 Foundation ComparisonConcrete Volume [m3] Reinforcement Steel [T]

26

3 SUMMARY OF SAVINGSCost Savings

0%

25%

50%

75%

100%

4 6 8 10 12 14 16

Cos

t vs

Stan

dard

Fou

nd [%

]

Rock Compressive Strength [MPa]

Foundation Cost ComparisonNBW Pile Foundation NBW Grav. Foundation Standard Foundation

27

AGENDA





28

1 x 4.5MW - HH1671 x 4.5MW - HH200

1 x 3.6MW - HH144

2018 2019 2020 20211 x 3.5MW - HH160

4 ONGOING PROJECTS NABRALIFT INSTALLATION PIPELINE

29

FIRST PILE FOUNDATION

30

Pile Design (3.6MW-144m)Diameter (D) 1.2mDepth (L) 4MPa Rock 24m

Pile Foundation Part ListConcrete 81m3

Reinforcement Steel 25TM36 Bolts (1.5m) 99udAnchor cage plates (250kg) 6ud

4 ONGOING PROJECTS FIRST PILE FOUNDATION

Detailed Design in Collaboration with

34

Drilling CompletedPiles to be executed in September

35

CONCLUSIONS

NabraliftEntry-into-Market Phase

Pile FoundationDisruptive Installation Pace (4 days)

Pile FoundationDisruptive Cost Reduction (-60%)

Thanks for Your Attention© Nabrawind Technologies 2018

All rights reserved. No part of this publication can be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical or photocopying, recording, or otherwise.

ppt-1736 nabralift pile foundation - nabrawind

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