prof. roger frank cermes (enpc-lcpc) tokyo iwm august 2004 present issues in design and constrution...
TRANSCRIPT
![Page 1: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/1.jpg)
Prof. Roger FRANK Prof. Roger FRANK
CERMES (ENPC-LCPC)CERMES (ENPC-LCPC)
Tokyo IWM August 2004Tokyo IWM August 2004
PRESENT ISSUES INPRESENT ISSUES INDESIGN AND CONSTRUTION OF DESIGN AND CONSTRUTION OF
MICROPILE SYSTEMSMICROPILE SYSTEMS
![Page 2: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/2.jpg)
1) Present state of European Norms (design, 1) Present state of European Norms (design, construction and testing)construction and testing)
2) Need for well documented field tests and case 2) Need for well documented field tests and case historieshistories
3) Control of installation effects3) Control of installation effects
![Page 3: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/3.jpg)
1) CEN European standards1) CEN European standards
![Page 4: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/4.jpg)
![Page 5: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/5.jpg)
CEN/TC 250CEN/TC 250Date: 2004-08Date: 2004-08
EN 1997-1EN 1997-1CEN/TC 250CEN/TC 250
Secretariat: NENSecretariat: NEN
Eurocode 7 Geotechnical design - Part 1: General rulesEurocode 7 Geotechnical design - Part 1: General rulesEurocode 7 Entwurf, Berechnung und Bemessung in der Geotechnik – Teil 1: Eurocode 7 Entwurf, Berechnung und Bemessung in der Geotechnik – Teil 1: Allgemeine RegelnAllgemeine RegelnEurocode 7 Calcul géotechnique - Partie 1: Règles généralesEurocode 7 Calcul géotechnique - Partie 1: Règles générales
ICS : 93.020; 91.080.01ICS : 93.020; 91.080.01
![Page 6: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/6.jpg)
Under preparationUnder preparation : :
Euronorm on pile load tests (from ETC3 work)Euronorm on pile load tests (from ETC3 work)
![Page 7: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/7.jpg)
2) Micropile design from well documented2) Micropile design from well documented
load tests and case historiesload tests and case histories
![Page 8: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/8.jpg)
![Page 9: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/9.jpg)
1,75 m
,50 m
,25 m
,40
m
,40
m
3,50
m
2,84 m 4,00 m
4,00
m
34,21 NGF
35,10 NGF
20 °
13,5 °
0,65 m0,60 m
LATERAL LOADING TEST
![Page 10: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/10.jpg)
-2
0
2
4
6
8
10
12
14
16
0 100 200 300 400
effort (kN) pr
ofon
deur
sous
la se
mel
le (m
)
AXIAL LOAD ON VERTICAL PILEForce (kN)
Depth
z (m)
( compression )
![Page 11: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/11.jpg)
-2
0
2
4
6
8
10
12
14
16
0 100 200 300 400
AXIAL LOAD ON INCLINED MICROPILE
Depth
z (m)
Force (kN) ( traction )
![Page 12: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/12.jpg)
3) Installation effects3) Installation effects
![Page 13: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/13.jpg)
_______
Movement of the water level
( sea tide, river flow)
_______
Wooden piles :
B = 0,30 m s/B = 4
Micropiles : B = 0,22 m s/B = 10
![Page 14: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/14.jpg)
STABILIZATION OF THE SETTLEMENTS AFTER MICROPILES INSTALLATION
![Page 15: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/15.jpg)
RAILWAY EMBANKMENT STABILIZED BY MICROPILES :
Additional settlement due to the installation of the micropiles
![Page 16: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/16.jpg)
![Page 17: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/17.jpg)
![Page 18: Prof. Roger FRANK CERMES (ENPC-LCPC) Tokyo IWM August 2004 PRESENT ISSUES IN DESIGN AND CONSTRUTION OF MICROPILE SYSTEMS](https://reader037.vdocuments.site/reader037/viewer/2022110205/56649c715503460f94922a3f/html5/thumbnails/18.jpg)
Thank you for your attention !