EP1108818A2 - Fondation active - Google Patents

Fondation active Download PDF

Info

Publication number
EP1108818A2
EP1108818A2 EP00126332A EP00126332A EP1108818A2 EP 1108818 A2 EP1108818 A2 EP 1108818A2 EP 00126332 A EP00126332 A EP 00126332A EP 00126332 A EP00126332 A EP 00126332A EP 1108818 A2 EP1108818 A2 EP 1108818A2
Authority
EP
European Patent Office
Prior art keywords
grid
phase
injections
nozzle
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00126332A
Other languages
German (de)
English (en)
Other versions
EP1108818A3 (fr
EP1108818B1 (fr
Inventor
Eduard Dipl.-Ing. Falk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keller Grundbau GmbH
Original Assignee
Keller Grundbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keller Grundbau GmbH filed Critical Keller Grundbau GmbH
Publication of EP1108818A2 publication Critical patent/EP1108818A2/fr
Publication of EP1108818A3 publication Critical patent/EP1108818A3/fr
Application granted granted Critical
Publication of EP1108818B1 publication Critical patent/EP1108818B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil

Definitions

  • the invention relates to a method for soil improvement, according to the injection of binder suspension from a variety from across a floor surface according to an area grid distributed boreholes are executed.
  • method for soil improvement of this type are used to introduce hardening Solids that are broken down in suspensions, in the ground to improve the load-bearing capacity of the ground and Avoid settlement.
  • the injections can be in the jet immediately after drilling from a suitably prepared one Drill rods are deployed. It is also known to be injections through valve pipes permanently installed in boreholes or Execute single valves to settle the Compensate floor surface.
  • the valve tubes are on simple supply lines connected and closed at the free end, while the individual valves each in individual line loops are integrated, which ensure inflow and reflux. In the following, only valves are often simplified addressed.
  • a nozzle jet method is for example in DE 43 11 917 described.
  • a drill pipe with high-pressure nozzles in the form of a circular disc in a joint Flat erosion areas are formed in the ground.
  • the valve tubes in particular fan-shaped from the side under an existing building guided.
  • the object of the present invention is a method to provide soil improvement that compared is more economical than conventional processes.
  • An at least two-stage process is hereby proposed, in which in a first phase a general Soil improvement takes place with economical use of material and in a further phase the conditions are created that additional improvements in at least one subsequent additional phase situation-related, d. H. differentiated locally depending on needs.
  • Implementation of the valve-controlled Injections of a supplementary phase can be done here if subsidence can be observed during or after completion of the structure to be created. To the Observe the subsidence or the success of the valve-controlled The building is to be injected with measuring levels.
  • a favorable embodiment consists in a method with the additional method step: in a second phase following the first, nozzle-jet injections (nozzle-jet fracturing) are carried out at different heights and in different directions from uncased boreholes arranged according to a second grid which differs from the first.
  • a supplementary improvement phase occurs during observation the quality of the soil already reached Improvement can be identified and assessed, and then the conditions are created in a further phase, that in at least one subsequent supplementary phase additional improvements situation-related, d. H. so locally again differentiated, and can be carried out depending on needs.
  • the holes of the further grid which are equipped with valves can, with a large grid dimension of the first grid or second grid separately and alone for the assembly with Valves are executed.
  • part of the boreholes of the first grid are used for the further grid, or that when using the second method, the whole the holes of the second grid as another grid for the further phase, d. H. so for the fitting with valves, be used.
  • the method is particularly suitable for shallow foundations up to a treatment depth of approx. 10 m from the top of the site.
  • the method may appear suitable as a replacement for deep foundations in numerous cases.
  • the goal is the settlement-free removal of bed tensions from 100 to approx. 1000 kN / m 2 .
  • the method according to the invention is particularly suitable for improving foundation soils with locally different load intensities and thus for overcoming the differentiation usually associated therewith.
  • the method according to the invention can compensate for overall settlements and differentiation at different loads can be used, for example, a different one Settling behavior of supports in comparison to hall floors as well how different setting behavior of parts with different Number of floors or different foundation depths in the sense of compensation.
  • the called compensation of the different settlements sets one geodetic observation or a metrological recording of the Signs of settlement in advance with known and suitable means. Due to the valve-controlled valve control, which only takes place as required Injections of the said supplementary phase will be a minor Material use adhered to. The display overdrawn Degrees of improvement due to uniform assumptions for needs an overall area is thus avoided.
  • Standardized injection quantities can be used for different soil parameters especially for use in jet injection come, so that the implementation of the process is standardized and can be simplified and made by individual decisions becomes independent in the first phase.
  • An easy one Exploratory drilling can be sufficient for parameter determination after which the injection quantities are selected in a table become.
  • the floor surface in the area to be treated with a square grid approx. 4.25 m grid dimension.
  • the intersections of the grid the location of the first holes and the jet injections the first phase.
  • Another like Grid is preferably offset by half the grid dimension torn open on the floor surface, the intersections of which Location of the second holes and the jet injections of the determine the second phase, which in the further phase with valve pipes or individual valves that make up the pressings of the supplementary phases.
  • the pitch of the second grid may also be wider than that of be the first, e.g. double the size.
  • the drilling for the first phase is carried out with Suspension rinsing to the final depth tB, with an escape of the Avoid drilling fluid on the floor surface if possible becomes.
  • Drill rods with suitable sealing sleeves are in the suggested further. From the holes of the first grid after reaching the final depth, the nozzle opening for Suspension-equipped drill rods in steps from 10 to 20 cm, an average of 15 cm, drawn and moving from level to level Swiveled 90 °. At each level, one becomes dependent on soil parameters predetermined injection quantity applied in the high pressure jet. The amount of injection is preferred with decreasing depth reduced from level to level. This causes the range to increase the slats are approximately the same size.
  • the second holes are drilled in the second grid.
  • the drill pipe in increments of 10 to 20 cm swiveled by 90 ° from level to level.
  • this can already the injection quantity depending on the floor elevations, which are achieved are measured.
  • Injection volumes of the first phase by a constant factor reduced used as injection amounts of the second phase. These floor elevations can be done with previously set up measurement levels be monitored.
  • Valve tubes or individual valves are introduced. These can fixed in the usual way with filling compound opposite the borehole become.
  • valve-controlled pressings that each take place in the medium pressure range and in those in different Heights from the individual valve openings or from the Individual valves installed at different heights each have predetermined ones Injection quantities are applied.
  • this supplement (final) phase only from a subset of ver built valves, e.g. B. every second valve in a horizontal line, can be generated, or it can be the valve-controlled injections this additional phase from the individual valves several times be repeated.
  • the area to be treated will be at the end of the first phase usually provided with a series of measurement levels so that the surface movements caused by the injection of the second phase can be determined. If the same quantities are added at the same level elevations between the individual boreholes can lead to the achievement of a desired homogeneity getting closed.
  • a possible excavation is carried out, which should go deeper than the upper limit of the injection area lies.
  • the supply lines of the valve pipes or The individual valves are to be protected and functional hold and if necessary to connect with extension leads, that remain operational all the time. After finishing of the floor slab or of the building are measured levels again or installed on it.
  • the amount added is 2 to 5% of the treated soil volume accepted. Suspensions rich in solids are said to Use, the volume of which is not hardened deviates significantly from the liquid volume.
  • Mixtures based on water come as suspensions, Cement, filler, bentonite for use, as a ready mix or processed on site.
  • Diluted water glass is used as an accelerator or an alkali-free accelerator.
  • the method according to the invention can be used for relevant soil improvement up to 1 m from the ground surface, better however only used up to 2 m from the ground surface become.
  • the feed lines the valves are extended and shielded. After that the foundations and the base plate are made.
  • Figure 1 is a plan view of a floor surface with solid Lines shown a first square grid 1 and with dash-dotted lines in relation to each one by half grid offset second grid 2.
  • grid points 3 of the first grid 1 define the boreholes for jet injection a first phase;
  • the grid points 4 of the second Grids define the drill holes for jet injections a second phase, which also includes the installation positions for the Play valve pipes or individual valves, their installation in another phase. If in a simplified Carrying out the process the further phase of installing the Valves immediately the first phase of jet injections follows, d. H. no second phase jet injections are made, define the grid points 4 of the second The drill holes for receiving the valve pipes or individual valves in the further phase.
  • the preferred grid dimension is the Size of 4.25 m, due to the range of the jet injections.
  • FIG. 2a shows a vertical section through a floor to be treated, the floor surface 11 forming the working planum and being designated with the height + 0.0 m.
  • first bores 12 are shown after a first grid, from which nozzle jet injections 13 are carried out (nozzle jet fracturing), which penetrate the floor in essentially horizontal binder lamellae. These range from a depth of - 2.0 m to a depth of - 10.0 m below the working level.
  • FIGS. 2b are offset by half a pitch Section plane shown second bores 14, one of which in one second phase also carried out nozzle jet injections 15 are that also penetrate the floor in horizontal slats.
  • the first bores 12 are dashed in a behind them Level indicated, the already existing Slats from the implementation of the first phase not shown are.
  • Measuring levels 16 are installed on the floor surface 11, those already in operation during the second phase injections and with which the effects of carrying out the second Phase are monitored, d. H.
  • Floor elevations can be determined can.
  • the individual injections are quantitatively like this controlled that certain absolute or addition-related Elevation values can be achieved at the individual levels.
  • FIG. 2d shows that starting from the work plan 11 excavated an excavation pit 19 to the depth of a bottom edge of the foundation which is below the upper limit of previous solidification measures lies.
  • a base plate 20 is in the construction pit 19 created.
  • the supply lines of the individual valves 17, 18 are passed through this base plate protected so that the Valves 17, 18 in each of the wells 14 continue to operate are. Further measurement levels 21 are set up on the base plate. It is also shown how from the individual valves 17, 18 valve-controlled pressings 22, 23 to compensate for Settlements are created when creating the floor slab or when further construction progress and additional burden from the Structure to compensate for settlement phenomena executed repeatedly can be.
  • FIG. 3 shows one of the bores 12 of the first phase, in which a drill pipe 31 with a drill bit 32 and a nozzle 33 dashed in the lowest position and in a higher position is shown undressed.
  • a drill pipe 31 with a drill bit 32 and a nozzle 33 dashed in the lowest position and in a higher position is shown undressed.
  • Frracs Binder lamellas 24
  • Figure 5 is a cross section through one of the boreholes 12 the result of the jet injection in different Altitudes and shown in different directions, being a Core area with 25 and a border area with 26 are designated.
  • FIG. 6 to 8 is the lower end of a drill string 31 with a drill bit 32 recognizable at the front end shown in one of the holes 12.
  • the nozzle for the binder suspension is designated 33, a smaller nozzle for Accelerator is denoted by 34.
  • the inclined representation of the borehole is intended to clarify that the method also with brought down at an angle of inclination parallel to each other running holes can be performed.
  • Figure 6 is a simple mounted on the linkage 31
  • Steel ring sleeve 35 shown above the nozzle openings the borehole 12 seals so that as little drilling fluid as possible or suspension can flow upwards out of the borehole.
  • the Steel ring sleeve 35 can have different thicknesses and is welded to the linkage 31.
  • Figure 8 is in the previously indicated position on the linkage 31 a rubber-elastic cuff provided that there are two symmetrical ring lips 39, 40, fixed with straps 41, 42 on the linkage 31 are. These ring lips seal this under their own elasticity Linkage opposite borehole 12.
  • FIG. 9 shows a borehole 26, which is shown here as an additional one Drilled borehole to carry out the further phase and has not yet been used for jet injection Has.
  • Drilled borehole to carry out the further phase and has not yet been used for jet injection Has.
  • the single valves 43, 44 can carry out the further phase after their Positioning in the borehole 26 with filling compound, for example with the available suspension, filled without pressure become.
  • the supply lines 45, 46 are on the Shield the outlet opening against subsequent construction measures, so that the individual valves 43, 44 are kept ready for operation.
  • Figure 10 symbolically shows an overall system for processing Suspension and for drilling and jet injections the first and second phases.
  • a generator 51 a cement silo 52, a mixer 53, a Reservoir 54 for suspension, a pump 55 and a self-propelled Drilling device 56 on which the drill pipe 31 is guided.
  • First phase injections are completed at borehole 12, work in progress on another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Soil Working Implements (AREA)
  • Catching Or Destruction (AREA)
EP00126332A 1999-12-13 2000-12-02 Fondation active Expired - Lifetime EP1108818B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19960023A DE19960023A1 (de) 1999-12-13 1999-12-13 Aktive Gründung
DE19960023 1999-12-13

Publications (3)

Publication Number Publication Date
EP1108818A2 true EP1108818A2 (fr) 2001-06-20
EP1108818A3 EP1108818A3 (fr) 2002-06-05
EP1108818B1 EP1108818B1 (fr) 2004-11-17

Family

ID=7932450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00126332A Expired - Lifetime EP1108818B1 (fr) 1999-12-13 2000-12-02 Fondation active

Country Status (3)

Country Link
EP (1) EP1108818B1 (fr)
AT (1) ATE282738T1 (fr)
DE (2) DE19960023A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102330425A (zh) * 2011-08-11 2012-01-25 福建省建筑科学研究院 带枝花管引导注浆构建鱼体仿生结构加固软土层的方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10133121A1 (de) * 2001-07-07 2003-01-23 Keller Grundbau Gmbh Verfahren zur Verdichtung von Böden
DE10148730B4 (de) * 2001-10-02 2007-06-14 Tracto-Technik Gmbh Verfahren zum Herstellen eines gerichteten Einpresskörpers durch Injektionen im Baugrund und Kombirohr zur Durchführung des Verfahrens
EP2535461B1 (fr) 2011-06-16 2016-09-28 Keller Holding gmbh Procédé et dispositif de fabrication d'éléments de sol
EP2730702B1 (fr) 2012-10-31 2015-05-27 Keller Holding GmbH Procédé et dispositif de fabrication de dépôts parallèles au moyen d'outils à jet
EP3882327B1 (fr) 2020-03-17 2022-11-09 BAUER Spezialtiefbau GmbH Procédé de fabrication d'une semelle d'étanchéité au sol et semelle d'étanchéité

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3521434A1 (de) 1985-06-14 1986-12-18 Gkn Keller Gmbh, 6050 Offenbach Injektionsverfahren und -vorrichtung zur bodenverbesserung
DE4311917A1 (de) 1992-12-29 1994-07-07 Keller Grundbau Gmbh Verfahren zum Herstellen von Verfestigungsbereichen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543059A1 (de) * 1984-12-07 1986-08-07 Gkn Keller Gmbh, 6050 Offenbach Verfahren zum verfestigen von bodenabschnitten
FR2582694B1 (fr) * 1985-05-30 1988-01-15 Soletanche Procede de densification statique horizontale des terrains de fondations
DE9004177U1 (fr) * 1990-04-11 1990-06-28 Bergwerksverband Gmbh, 4300 Essen, De
DE4210196A1 (de) * 1992-03-28 1993-09-30 Gerd Prof Dr Ing Gudehus Verfahren zum Verformungsausgleich im Untergrund durch Einpressen bodenschonender Pasten
DE19752180C1 (de) * 1997-11-25 1999-07-29 Keller Grundbau Gmbh Verfahren zum Herstellen einer Dichtsohle nach dem Düsenstrahlverfahren

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3521434A1 (de) 1985-06-14 1986-12-18 Gkn Keller Gmbh, 6050 Offenbach Injektionsverfahren und -vorrichtung zur bodenverbesserung
DE4311917A1 (de) 1992-12-29 1994-07-07 Keller Grundbau Gmbh Verfahren zum Herstellen von Verfestigungsbereichen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102330425A (zh) * 2011-08-11 2012-01-25 福建省建筑科学研究院 带枝花管引导注浆构建鱼体仿生结构加固软土层的方法

Also Published As

Publication number Publication date
EP1108818A3 (fr) 2002-06-05
ATE282738T1 (de) 2004-12-15
EP1108818B1 (fr) 2004-11-17
DE19960023A1 (de) 2001-06-28
DE50008660D1 (de) 2004-12-23

Similar Documents

Publication Publication Date Title
DE3535320A1 (de) Verfahren und vorrichtung zum setzen eines stab-, draht- oder rohrfoermigen einbauteils in eine bodenformation mit drueckendem wasser
DE2751972A1 (de) Verfahren zur herstellung einer verstaerkten unterirdischen bauscheidewand
EP1108818B1 (fr) Fondation active
DE3416679C2 (fr)
EP0483110A2 (fr) Procédé et dispositif pour réaliser un puits
DE69938438T2 (de) Ein in beton eingebetteter rundpfahl und pfahlrammmethode
DE3914685C2 (de) Verfahren zum Einziehen einer Dichtsohle für die Untergrundabdichtung eines Geländebereiches
DE4311917C2 (de) Verfahren zum Herstellen von Verfestigungsbereichen
DE2838363A1 (de) Fluessigkeitsundurchlaessige wandung und verfahren zur herstellung derselben
DE3410830C2 (fr)
DE19721361C2 (de) Verfahren zur Herstellung von Pfählen und solchermaßen hergestellte Pfähle
DE3543059C2 (fr)
EP3656926B1 (fr) Procédé de stabilisation et d'élévation des bâtiments
DE4137359C2 (de) Verfahren zur Sicherung von Bauwerken gegen Baugrundbewegungen aufgrund einer mobilen Erdstufe
DE3521434A1 (de) Injektionsverfahren und -vorrichtung zur bodenverbesserung
EP0346941B1 (fr) Méthode pour réaliser des éléments de construction dans le sol tels que des pieux, des ancrages ou similaires ainsi qu'un dispositif pour l'application de cette méthode
EP0340599B1 (fr) Dalle de fond ajustable pour hauts bâtiments ainsi que méthode pour sa réalisation
EP3650603B1 (fr) Procédé de fabrication d'un dallage d'étanchéité dans le sol
DE4446028C2 (de) Verfahren und Anlage zum Stabilisieren eines Bodens mit Hilfe von Injektionen
EP2730702B1 (fr) Procédé et dispositif de fabrication de dépôts parallèles au moyen d'outils à jet
DE4442475C2 (de) Herstellung eines horizontalen Dichtschirms gegen drückendes Wasser
DE1928471A1 (de) Verfahren und Vorrichtung zur Verdichtung und Entwaesserung von Boeden
DE19528330C2 (de) Herstellung einer Baugrube mit nachträglichem Grundwasserdurchfluß
DE10323141B4 (de) Verfahren zur statischen Sicherung von Stützmauern und Füllpackung hierfür
DE102004040191B4 (de) Verfahren zur Herstellung von Führungselementen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20021107

AKX Designation fees paid

Designated state(s): AT CH DE FR GB IT LI

17Q First examination report despatched

Effective date: 20030217

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041117

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041117

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50008660

Country of ref document: DE

Date of ref document: 20041223

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20041117

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050818

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151202

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20170710

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 50008660

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20181213

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20181218

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20181231

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50008660

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 282738

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200701

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191202