DE1029772B - Manhole covers - Google Patents
Manhole coversInfo
- Publication number
- DE1029772B DE1029772B DEG9049A DEG0009049A DE1029772B DE 1029772 B DE1029772 B DE 1029772B DE G9049 A DEG9049 A DE G9049A DE G0009049 A DEG0009049 A DE G0009049A DE 1029772 B DE1029772 B DE 1029772B
- Authority
- DE
- Germany
- Prior art keywords
- rubber
- paint
- corrosion
- segment
- shaft
- 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.)
- Pending
Links
- 238000005260 corrosion Methods 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010073 coating (rubber) Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/012—Use of fluid-tight or anti-friction material on outside of, or between, lining layers
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Paints Or Removers (AREA)
Description
Schachttübbings Die beim Abteufen durch wasserführende Schwimmsandschichten verwendeten Schachtauskleidungen in Form von Tübbings aus Eisenguß oder Stahl unterliegen bekanntlich einer hohen Korrosion, welche die bei der langen Nutzungsdauer von Grubenschächten geforderte Standfestigkeit des Stahlausbaues in hohem Maße gefährdet. Besonders starke Korrosionen werden in Wetterschächten beobachtet, da hier die Korrosion durch die ausziehenden feuchtwarmen Grubenwetter stark begünstigt wird. Auch in solchen Schächten, deren Ausbau durch zwei koaxial ineinanderliegende Tübbingssäulen mit einer Zwischenfüllung aus Beton oder einem anderen Füllmaterial gebildet wird, treten nicht nur an den mit den Schwimmsandschichten unmittelbar in Berührung stehenden Außenwandungen der äußeren Tübbingssäule Korrosionen auf, sondern auch an den äußeren Wandungen der inneren Säule. Das ist vor allem dann der Fall, wenn der Beton und die äußere Tübbingssäule auf Grund von Gebirgsbewegungen undicht geworden sind. Die durch die aggressiven Wässer hervorgerufene außerordentlich starke Korrosion stellt daher eine große Gefahr für die Standfestigkeit des Ausbaues und des Schachtes dar.Shaft segments The when sinking through water-bearing floating sand layers Manhole linings used in the form of tubbings made of cast iron or steel are subject known to be a high level of corrosion, which is caused by the long service life of mine shafts The required stability of the steel structure is endangered to a high degree. Particularly strong corrosion is observed in weather shafts, as this is where the corrosion occurs the moving warm, humid mine weather is strongly favored. Even in those Shafts, their expansion by two coaxially nested segment columns with an intermediate filling made of concrete or another filler material occurs not only on those in direct contact with the layers of floating sand Corrosion on the outer walls of the outer segment column, but also on the outer ones Walls of the inner column. This is especially the case when the concrete and the outer tubbing column has become leaky due to rock movements. The extremely strong corrosion caused by the aggressive waters therefore poses a great risk to the stability of the expansion and the shaft represent.
Es ist bekannt, Gegenstände durch Anstriche oder Verzinkungen vor Korrosion zu schützen. Es ist außerdem bekannt, den Korrosionsschutz in bestimmten Fällen durch eine Gummierung zu schaffen. So hat man bereits vorgeschlagen, Filterrohre für Brunnenanlagen nach dein sogenannten Hagusta-Verfahren (Abkürzung für Hartgummi und Stahl) zu gummieren, uni sie korrosionsbeständig zu machen. Es hat sich hierbei herausgestellt, daß derartige Rohre selbst nach längerer Benutzung keinerlei Korrosionserscheinungen aufweisen. Man hat weiter die Eignung von Chlor-Kautschuk als Korrosionsschutzmittel für Schachteinbauten untersucht, mit dem Ziel, deren Lebensdauer zu erhöhen.It is known to present objects by painting or galvanizing To protect against corrosion. It is also known to protect against corrosion in certain To create cases by means of a rubber coating. So one has already proposed filter tubes for well systems based on the so-called Hagusta method (abbreviation for hard rubber and steel) to be rubberized to make them corrosion-resistant. It has turned out to be here found that such pipes do not show any signs of corrosion even after prolonged use exhibit. Chlorine rubber is also suitable as a corrosion protection agent investigated for manhole installations with the aim of increasing their service life.
Ausgehend von diesen Untersuchungen schlägt die Erfindung vor. kautschukartige Schutzmittel für Schachttübbings derart zu verwenden, daß zur Abdichtung zwischen den Tübbingsteilen das gleiche kautschukartige Schutzmittel zur Anwendung kommt, so daß auf die für diesen Zweck bisher gebräuchlichen teuren Bleidichtungen verzichtet werden kann. Hierdurch ist die Möglichkeit gegeben, die Schutz- und Dichteigenschaften chlorkautschukartiger Anstrichmittel in technisch und wirtschaftlich vorteilhafter Weise für den Schachtausbau in Tübbingringen miteinander zu verbinden. Das Aufbringen der Gummierung kann vor oder nach dem Einbau der Tübbingsteile erfolgen. Für die Korrosionsverhütung ist es zweckmäßig, die nach dem Einbau unzugänglichen Tübbingflächen vor dem Einbau der Tübbings in den Schacht mit dein kautschukartigen Anstrichmittel zu versehen.The invention proposes on the basis of these investigations. rubbery To use protective means for shaft segments in such a way that for sealing between the same rubber-like protective agent is used for the segment parts, so that the expensive lead seals previously used for this purpose are dispensed with can be. This gives the opportunity to improve the protective and sealing properties chlorinated rubber-like paints in technically and economically advantageous Way to connect the shaft extension in segment rings. The application the rubber coating can be done before or after the installation of the segment parts. For the It is advisable to prevent corrosion in the segment areas that are inaccessible after installation before installing the segments in the shaft with your rubber-like paint to provide.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG9049A DE1029772B (en) | 1952-06-07 | 1952-06-07 | Manhole covers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG9049A DE1029772B (en) | 1952-06-07 | 1952-06-07 | Manhole covers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1029772B true DE1029772B (en) | 1958-05-14 |
Family
ID=7119010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG9049A Pending DE1029772B (en) | 1952-06-07 | 1952-06-07 | Manhole covers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1029772B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE677766C (en) * | 1934-02-18 | 1939-07-01 | Emil Schmidtmann | Ring-shaped pit or tunnel lining of any cross-section made of rolled profile iron |
-
1952
- 1952-06-07 DE DEG9049A patent/DE1029772B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE677766C (en) * | 1934-02-18 | 1939-07-01 | Emil Schmidtmann | Ring-shaped pit or tunnel lining of any cross-section made of rolled profile iron |
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