DE19509315C1 - Concrete post-treatment during tunnel concretion - Google Patents
Concrete post-treatment during tunnel concretionInfo
- Publication number
- DE19509315C1 DE19509315C1 DE1995109315 DE19509315A DE19509315C1 DE 19509315 C1 DE19509315 C1 DE 19509315C1 DE 1995109315 DE1995109315 DE 1995109315 DE 19509315 A DE19509315 A DE 19509315A DE 19509315 C1 DE19509315 C1 DE 19509315C1
- Authority
- DE
- Germany
- Prior art keywords
- concrete
- aftertreatment
- temperature
- chambers
- micro
- 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.)
- Expired - Fee Related
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000004698 Polyethylene Substances 0.000 claims abstract description 3
- -1 polyethylene Polymers 0.000 claims abstract description 3
- 229920000573 polyethylene Polymers 0.000 claims abstract description 3
- 239000003595 mist Substances 0.000 claims abstract 3
- 238000007711 solidification Methods 0.000 claims description 8
- 230000008023 solidification Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 239000013013 elastic material Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000002663 nebulization Methods 0.000 claims 1
- 229920001778 nylon Polymers 0.000 claims 1
- 239000011888 foil Substances 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001311 chemical methods and process Methods 0.000 description 2
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren für die Nachbehandlung von Beton beim Betonieren von Tunnelgewölben und eine Anlage zur Durchführung des Verfahrens gemäß den in den Ansprüchen 1 und 9 angegebenen Gattungen.The invention relates to a method for aftertreatment of concrete when concreting tunnel vaults and a plant for performing the method according to the genera specified in claims 1 and 9.
Erstarren und Erhärten des Betons sind chemische Vorgänge, und deshalb sehr abhängig von Temperatur und Feuchtigkeit. Durch die während des Erstarrungsvorganges entstehende Hydrationswärme wird die Betonmasse erwärmt. Ungleichmäßige oder zu schnelle Abkühlung kann thermische Spannungen sowie Rißbildung zur Folge haben. Zu hohe Temperaturen können die Ausbildung des Betongefüges stören und zu wesentlich niedri geren Festigkeitswerten führen. Unter Festigkeit sind vor allem Druck-, Zug- und Biegefestigkeit zu verstehen. Zu hoher Wassergehalt kann eine Entmischung, einen unzuver lässigen Zusammenhalt, eine verzögerte Erhärtung und damit eine Verminderung der Festigkeit des Betons bewirken. Neben besonderen Maßnahmen während des Mischens, dem Transport und Verdichten des Betons, ist die Nachbehandlung von großer Bedeutung.Solidification and hardening of the concrete are chemical processes, and therefore very dependent on temperature and humidity. By the arising during the solidification process Heat of hydration heats the concrete mass. Uneven or cooling too quickly can cause thermal stresses as well Result in cracking. Too high temperatures can Disrupt formation of the concrete structure and too low lower strength values. Under firmness are before all to understand compressive, tensile and flexural strength. To high water content can cause segregation casual cohesion, a delayed hardening and thus cause a reduction in the strength of the concrete. Next special measures during mixing, transport and compacting the concrete, the after-treatment is great Meaning.
Bekannt ist, (DE-Z.: Beton- und Stahlbetonbau 12/1983, S. 336 bis 341), daß die Bedeutung der Nachbehandlung für die Festigkeit des Betons und die Dauerhaftigkeit der Beton bauwerke zu allgemeinen Regeln und Vorschriften (DIN 1045) geführt hat, die aber meist für die praktische Ausführung einen weiten Spielraum lassen. Grund hierfür ist die Viel falt der Faktoren, wie Zementfestigkeitsklasse, Beanspru chung und Abmessung der Baukörper sowie Erhärtungsgeschwin digkeit und Austrocknungsbedingungen, die den Erstarrungspro zeß beeinflussen. Entsprechend vielfältig sind auch die Maßnahmen zur Nachbehandlung.Is known, (DE-Z .: concrete and reinforced concrete construction 12/1983, Pp. 336 to 341) that the importance of aftercare for the strength of the concrete and the durability of the concrete buildings to general rules and regulations (DIN 1045) has led, but mostly for the practical execution leave a wide margin. The reason for this is the much fold of factors such as cement strength class, stress The dimensions and dimensions of the structures as well as the hardening speed density and dehydration conditions that affect the solidification pro influence. They are correspondingly diverse Post-treatment measures.
In der Praxis sind folgende Methoden üblich: Abdecken mit feuchter Jute, Abdecken mit Folie, Belassen des Betons in der Schalung, zeitweiliges Besprühen mit Wasser, Lagern un ter Wasser und Anwendung von chemischen Nachbehandlungs mitteln.The following methods are common in practice: Cover with damp jute, covering with foil, leaving the concrete in the formwork, occasional spraying with water, storage and ter water and application of chemical aftertreatment average.
Die Mängel der vorbeschriebenen Maßnahmen bestehen darin, daß der Erstarrungsprozeß hinsichtlich Feuchtigkeit und Temperatur nicht koordiniert und meßbar beeinflußt wird.The shortcomings of the measures described above are that the solidification process with regard to moisture and Temperature is not coordinated and is measurably influenced.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren so wie eine Vorrichtung zur Durchführung des Verfahrens der gattungsgemäßen Arten anzugeben, mit denen es möglich ist, den Erstarrungsprozeß des Betons zur Erzielung eines gleich mäßigen Gefüges und einer optimalen Festigkeitsentwicklung meßbar zu beeinflussen und bei denen auch äußere Einflüsse, wie Witterungsschwankungen oder interne Unregelmäßigkeiten beim Ablauf der chemischen Prozesse, mitberücksichtigt werden.The invention has for its object a method like this as an apparatus for performing the method of Specify generic species with which it is possible the solidification process of the concrete to achieve the same moderate structure and optimal strength development measurable influence and where also external influences, such as weather fluctuations or internal irregularities taken into account in the course of the chemical processes will.
Diese Aufgabe wird durch ein Verfahren sowie eine Anlage gemäß den kennzeichnenden Merkmalen der Ansprüche 1 und 9 gelöst. Zweckmäßige Ausführungsformen der Erfindung sind Gegenstand der Unteransprüche.This task is accomplished through a process as well as an attachment according to the characterizing features of claims 1 and 9 solved. Appropriate embodiments of the invention are Subject of the subclaims.
Die Vorteile der Erfindung bestehen in der meßbar kontrol lierten Nachbehandlung von Beton. Statt der bisher üblichen Maßnahmen wie Abdecken und unkontrolliertem Befeuchten des Betons, wird der Erstarrungsprozeß erfindungsgemäß hinsicht lich Temperatur, Feuchtigkeit und zeitlichem Ablauf ge steuert.The advantages of the invention lie in the measurable control after-treatment of concrete. Instead of the usual Measures such as covering and uncontrolled humidification of the Concrete, the solidification process according to the invention temperature, humidity and chronological sequence controls.
Es ist möglich, mittels Probewürfel von jeder Betoncharge die optimalen Soll-Werte zu bestimmen und den Prozeß chargenweise durch unterschiedliche Werte in den einzelnen Klimakammern zu führen. Hierdurch ist mit größerer Sicher heit ein gleichmäßiges Gefüge und damit höhere Festigkeit zu erzielen.It is possible to use test cubes from each batch of concrete to determine the optimal target values and the process in batches by different values in the individual To lead climatic chambers. This is more secure an even structure and thus higher strength to achieve.
Nachfolgend wird anhand schematischer Zeichnungen ein Aus führungsbeispiel der Erfindung beschrieben.Below is an off using schematic drawings leadership example of the invention described.
Es zeigenShow it
Fig. 1 einen Querschnitt durch ein Tunnelprofil und einen Nachbehandlungswagen, Fig. 1 shows a cross section through a tunnel profile, and a post-treatment cart,
Fig. 2 den Längsschnitt durch einen Nachbehandlungswagen, Fig. 2 is a longitudinal section through a post-treatment cart,
Fig. 3 eine Seitenansicht eines Nachbehandlungswagens mit der Anordnung der Mikro-Vernebelungsdüsen, Fig. 3 is a side view of a post-treatment vehicle with the arrangement of the micro-atomizing nozzles,
Fig. 4 eine Darstellung der Metall-Systemelemente, Fig. 4 is an illustration of the metal-system elements,
Fig. 5 die Anpassungsmöglichkeit an das Tunnelprofil, Fig. 5, the adaptability to the tunnel profile,
Fig. 6 die Außenverkleidung der Nachbehandlungswagen. Fig. 6, the outer lining of the aftertreatment trolley.
Wie aus Fig. 1 zu ersehen, ist der Nachbehandlungswagen (1) mit seinem Außenprofil der Innenseite des Betongewöl bes (2) so angepaßt, daß ein Zwischenraum entsteht, der zur Nachbehandlung des Betons als Klimakammer (3) verwendet wird.As can be seen from Fig. 1, the aftertreatment trolley ( 1 ) with its outer profile of the inside of the concrete vault bes ( 2 ) is adapted so that an intermediate space is created which is used for the aftertreatment of the concrete as a climatic chamber ( 3 ).
Die Außenseite (6) der Nachbehandlungswagen (1) ist gemäß Fig. 6 mit gitterverstärkter PVC-Folie (7) bespannt. Die jeweils zwischen zwei Wagen bestehenden Zwischenräume sind ebenfalls mit PVC-Folie abgeschirmt.The outside ( 6 ) of the aftertreatment trolley ( 1 ) is covered with grid-reinforced PVC film ( 7 ) according to FIG. 6. The gaps between two cars are also shielded with PVC film.
Beim ersten hinter dem Schalwagen folgenden Nachbehandlungs wagen (1) ist zur Vermeidung eines Kälteschocks unter der PVC-Folie (7) noch eine geschlossenzellige Polyethylen- Folie (8) als Wärmeisolation angebracht. Die beiden ersten Nachbehandlungswagen (1) sind zusätzlich außen mit einem Filzbelag (9) versehen.In the first aftertreatment carriage ( 1 ) behind the formwork carriage, a closed-cell polyethylene film ( 8 ) is attached as thermal insulation to avoid a cold shock under the PVC film ( 7 ). The first two post-treatment trolleys ( 1 ) are additionally provided with a felt covering ( 9 ) on the outside.
Die Abdichtung der Klimakammern (3) zur Tunnelsohle und an den Stirnseiten der Nachbehandlungswagen (1) zum Tunnelge wölbe erfolgt gemäß Fig. 1 und 2 durch aufblasbare Schläu che (4) und (5).The sealing of the climatic chambers ( 3 ) to the tunnel sole and on the end faces of the aftertreatment trolley ( 1 ) to the tunnel vault takes place according to FIGS . 1 and 2 by inflatable hoses ( 4 ) and ( 5 ).
Die Steuerung und Versorgung mit dem zu vernebelnden Medium und der Druckluft erfolgt mittels der Steuer- und Versor gungseinheit (13).The control and supply with the medium to be atomized and the compressed air takes place by means of the control and supply unit ( 13 ).
Gemäß Fig. 1, 2 und 4 sind die Nachbehandlungswagen (1) aus den zusammensteckbaren Metall-Systemelementen (14), (15) und (16) aufgebaut, wobei diese nach Fig. 2 mittels Längsverbin dungen (17) und Diagonalverstrebungen (18) miteinander ver bunden sind. Die Metall-Systemelemente (14), (15) und (16) sind nach Fig. 1 und 2 auf beiderseits angeordneten Basis trägern (19) montiert, die ihrerseits an beiden Enden tele skopartig ausziehbar und auf der Unterseite mit Lauf rollen (20) versehen sind.According to Fig. 1, 2 and 4, the post-treatment cart (1) from the matable metal system members (14), (15) and (16) are constructed, these compounds according to Fig. 2 by means of Längsverbin (17) and diagonal struts (18) are connected with each other. The metal system elements ( 14 ), ( 15 ) and ( 16 ) are mounted according to FIGS. 1 and 2 on both sides arranged base carriers ( 19 ), which in turn telescopically extendable at both ends and roll on the underside with barrel ( 20 ) are provided.
Die Möglichkeit der Anpassung an das Tunnelprofil ist aus Fig. 5 ersichtlich. Der schwenkbare Haltebügel (21) des Metall-Systemelementes (15) nimmt das segmentartig geformte Metall-Systemelement (16) in der erforderlichen Winkelnei gung auf. Die Verbindung der beiden jeweils zugehörigen Metall-Systemelemente (16) erfolgt durch Anpaßstücke (22), die entsprechend der Winkelneigung und der Tunnelbreite aus gebildet sind.The possibility of adapting to the tunnel profile can be seen in FIG. 5. The pivotable bracket ( 21 ) of the metal system element ( 15 ) takes the segment-shaped metal system element ( 16 ) in the required Winkelnei supply. The connection of the two respective associated metal system elements ( 16 ) is carried out by adapter pieces ( 22 ) which are formed in accordance with the angular inclination and the tunnel width.
Fig. 1 und 3 zeigen die in den Klimakammern (3) angeord neten und die in das Betongewölbe (2) eingegossenen Sen soren für Temperatur (23) und relative Luftfeuchte (24). Fig. 1 and 3 show the angeord Neten in the air chambers (3) and the cast concrete into the vault (2) Sen sensors for temperature (23) and relative humidity (24).
Claims (21)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995109315 DE19509315C1 (en) | 1995-03-15 | 1995-03-15 | Concrete post-treatment during tunnel concretion |
EP96104190A EP0732480A3 (en) | 1995-03-15 | 1996-03-15 | Method and installation for the post-treatment of concrete, in particular for casting a tunnel vault |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995109315 DE19509315C1 (en) | 1995-03-15 | 1995-03-15 | Concrete post-treatment during tunnel concretion |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19509315C1 true DE19509315C1 (en) | 1996-05-09 |
Family
ID=7756702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1995109315 Expired - Fee Related DE19509315C1 (en) | 1995-03-15 | 1995-03-15 | Concrete post-treatment during tunnel concretion |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0732480A3 (en) |
DE (1) | DE19509315C1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2752013A1 (en) * | 1996-07-30 | 1998-02-06 | Parra Robert | Curved coffering ring for tunnel |
EP0863294A1 (en) * | 1997-03-07 | 1998-09-09 | Ed. Züblin Ag | Method and device for the industrial construction of reinforced ceiling structures |
CN104695979A (en) * | 2015-02-16 | 2015-06-10 | 中交一航局第一工程有限公司 | Method for integrally and transversely moving high and large formwork through high and large trolley |
CN108533291A (en) * | 2018-06-15 | 2018-09-14 | 中铁工程设计咨询集团有限公司 | The concrete curing equipment that can be kept the temperature and maintenance process |
CN115478517A (en) * | 2022-09-19 | 2022-12-16 | 河南黄河河务局工程建设中心 | Support protection device for hydraulic engineering construction and use method thereof |
Families Citing this family (10)
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CN102704952B (en) * | 2012-06-28 | 2014-12-10 | 中国水利水电第七工程局成都水电建设工程有限公司 | Self-propelled tunnel grouting trolley |
JP2014152527A (en) * | 2013-02-08 | 2014-08-25 | Mashino:Kk | Curing water supply system for concrete curing facility and the like |
CN104389622A (en) * | 2014-09-26 | 2015-03-04 | 甘肃万泰建设工程有限公司 | Construction method of arched steel lifting molds of tunnel secondary lining arch foot curved wall |
CN104500098B (en) * | 2014-11-25 | 2017-02-01 | 中铁十八局集团有限公司 | Method for increasing construction space under invert trestle of single track railway tunnel |
CN106065778B (en) * | 2016-06-03 | 2018-04-20 | 江苏中路工程检测有限公司 | A kind of tunnel steel arch frame apparatus for placing |
CN108004888B (en) * | 2017-12-12 | 2019-11-26 | 中交机电工程局有限公司 | A kind of road traffic splash guard installation trolley |
CN110617070B (en) * | 2019-10-15 | 2020-12-11 | 中铁五局集团第一工程有限责任公司 | Tunnel construction method |
CN110645019B (en) * | 2019-10-15 | 2021-02-26 | 中铁五局集团第一工程有限责任公司 | Integrated form tunnel construction equipment |
CN110645020B (en) * | 2019-10-15 | 2021-02-26 | 中铁五局集团第一工程有限责任公司 | Construction equipment walking method |
CN110656958B (en) * | 2019-10-15 | 2021-02-26 | 中铁五局集团第一工程有限责任公司 | Steady formula construction equipment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3826521A1 (en) * | 1988-08-04 | 1990-02-08 | Kloeckner Becorit Ind | Device for wetting pack construction materials |
US5089198A (en) * | 1989-02-17 | 1992-02-18 | Cam Sales, Inc. | Method for curing concrete articles |
-
1995
- 1995-03-15 DE DE1995109315 patent/DE19509315C1/en not_active Expired - Fee Related
-
1996
- 1996-03-15 EP EP96104190A patent/EP0732480A3/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
DE-Z: Beton- und Stahlbetonbau 12/1983, S. 336-341 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2752013A1 (en) * | 1996-07-30 | 1998-02-06 | Parra Robert | Curved coffering ring for tunnel |
EP0863294A1 (en) * | 1997-03-07 | 1998-09-09 | Ed. Züblin Ag | Method and device for the industrial construction of reinforced ceiling structures |
CN104695979A (en) * | 2015-02-16 | 2015-06-10 | 中交一航局第一工程有限公司 | Method for integrally and transversely moving high and large formwork through high and large trolley |
CN108533291A (en) * | 2018-06-15 | 2018-09-14 | 中铁工程设计咨询集团有限公司 | The concrete curing equipment that can be kept the temperature and maintenance process |
CN115478517A (en) * | 2022-09-19 | 2022-12-16 | 河南黄河河务局工程建设中心 | Support protection device for hydraulic engineering construction and use method thereof |
CN115478517B (en) * | 2022-09-19 | 2024-01-26 | 河南黄河河务局工程建设中心 | Support protection device for hydraulic engineering construction and application method thereof |
Also Published As
Publication number | Publication date |
---|---|
EP0732480A3 (en) | 1998-08-12 |
EP0732480A2 (en) | 1996-09-18 |
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