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DE3124001A1 - Injection compositions for the consolidation of freshly cut rock, preferably for mining tunnels, having early-bearing flexural, tensile and compressive strength - Google Patents

Injection compositions for the consolidation of freshly cut rock, preferably for mining tunnels, having early-bearing flexural, tensile and compressive strength

Info

Publication number
DE3124001A1
DE3124001A1 DE19813124001 DE3124001A DE3124001A1 DE 3124001 A1 DE3124001 A1 DE 3124001A1 DE 19813124001 DE19813124001 DE 19813124001 DE 3124001 A DE3124001 A DE 3124001A DE 3124001 A1 DE3124001 A1 DE 3124001A1
Authority
DE
Germany
Prior art keywords
tensile
freshly cut
compressive strength
early
injection molding
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.)
Ceased
Application number
DE19813124001
Other languages
German (de)
Inventor
Heribert Ing.(grad.) 4390 Gladbeck Dewert
Heinrich Ing.(grad.) 4600 Dortmund-Wickede Gresch
Heinz Ing.(grad.) Hölter
Heinrich Ing.(grad.) 4390 Gladbeck Igelbüscher
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19813124001 priority Critical patent/DE3124001A1/en
Priority to FR8207578A priority patent/FR2504912A1/en
Priority to GB8212834A priority patent/GB2097776B/en
Publication of DE3124001A1 publication Critical patent/DE3124001A1/en
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/001—Improving soil or rock, e.g. by freezing; Injections
    • E21D9/002—Injection methods characterised by the chemical composition used

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)

Abstract

In order to achieve the strength in freshly cut rock in minutes in a range of, preferably, above 70 kp/cm<2>, it is proposed to use an injection composition which comprises about 60% of gypsum, preferably from flue gas desulphurisation after coal power stations or gas purification units from other combustion (incineration) plants. The anhydride component in the composition is synthetic anhydride. About 2.5% of calcium-chloride dihydrate can be added to the composition. In addition, it is possible to add 0.3-2% of stearates, preferably aluminium tristearates, to the composition.

Description

Beschreibung und Erläuterung zur ZusatzpatentanmeldungDescription and explanation of the additional patent application

"Spritzmassen zur Verfestigung des frisch geschnittenen Gebirges, vorzugsweise für Bergbaustrecken mit frühtragender Biege-, Zug- und Druckfestigkeit" Zusatz zu P 31 17 43Q.1."Gunning mixes to consolidate the freshly cut mountains, preferably for mining routes with early bending, tensile and compressive strength " Addition to P 31 17 43Q.1.

In der Hauptanmeldung "Spritzmassen zur Verfestigung des frisch- geschnittenen Gebirges9 vorzugsweise für Bergbaustreckenfl P 31 17 436.1 wird eine Spritzmasse beschrieben, vorzugsweise zur Verfestigung des angrenzenden Gebirges nach dem Auffahren von Grubenstrecken, die gekennzeichnet ist durch das Aufnehmen der Restprodukte von Rauchgasentschwefelungsanlagen, die hinter Kohlekraftwerken angesetzt sind und das zusätzliche Nischen von Anhydrit, Elektrofilterstaub, Mineralwollfasern, Zement und Calciumchlorid.In the main application "Injection molding compounds for solidifying the freshly cut Gebirges9 preferably for mining routes P 31 17 436.1 is a gunning compound described, preferably to consolidate the adjacent mountain range after driving of mine sections, which is characterized by the collection of residual products of flue gas desulphurization systems that are installed behind coal-fired power plants and the additional niches of anhydrite, electrostatic precipitator dust, mineral wool fibers, cement and calcium chloride.

Um die Festigkeit beim frisch angeschnittenen Gebirge in Minutenschnelle in einem Bereich von vorzugsweise über 70 kp/cm² zu erzielen, wird erfindungsgemäß vorgeschlagen, eine Spritzmasse zu verwenden, der zu den in der oben genannten Patentanmeldung angeführten Zuschlagstoffen zusätzlich anstelle von Mineralwollfasern z.B. Glasfaser und/oder Stahlfasern und erfindungsgemäß Naturanhydrit, vorzugsweise synthetischer Anhydrit sowie Stearate, vorzugsweise Aluminium-Tristearate, zugegeben werden.About the strength of the freshly cut mountains in a matter of minutes to achieve in a range of preferably over 70 kp / cm², is according to the invention proposed to use a molding compound, which is in the above-mentioned patent application listed aggregates in addition to mineral wool fibers, e.g. glass fiber and / or steel fibers and, according to the invention, natural anhydrite, preferably synthetic Anhydrite and stearates, preferably aluminum tristearates, are added.

Dieses Stearat bringt für die spezifischen notwendigen Eigenschaften der Konsolidierung beim frisch geschnittenen Gebirge den Frühtrage-Effekt.This stearate brings about the specific properties necessary the consolidation in freshly cut mountains has the early wearing effect.

Nachstehend wird die erfindungsgemäße Auflistung der Ergänzungsmischung angeführt.The following is the listing of the supplement mixture according to the invention cited.

Stearate, vorzugsweise Aluminium-Tristearate, bringen den gewünschten notwendigen Vorteil Das Zumischen des genannten spezifischen Stearates oder der Mischung verschiedener Stearate wird erfindungsgemäß nur für den Bereich von 0,3 - 2 % angeführt, da erfindungsgemäß für das Streckenkonsolidierungsmaterial gerade dieser Mischungsbereich die spezifischen notwendigen Eigenschaften garantiert.Bring stearates, preferably aluminum tristearates the Desired necessary benefit Mixing in the specific stearate mentioned or the mixture of different stearates is according to the invention only for the range of 0.3-2%, since according to the invention for the route consolidation material It is precisely this mixing range that guarantees the specific properties required.

Es wurde gefunden, daß das Aluminium-Tristearat mit seiner besonderen Eigenschäft, eine Biege-, Zug- und Druckfestigkeit garantiert, die man bisher nur mit teuren Zuschlagstoffen wie Epoxydharz und Alpha-Gipsen erzielt hat, wobei diese Epoxydharze für den Untertage-Bergbau nur notgedrungen zugelassen werden, da sie a) bei Brandgefahr eine Gefährdung für die Arbeitsmannschaft bringen und das Formaldehyd in den Harzen auch durch stetige Ausdunstung eine Arbeitsplatzbelästigung bewirkt.It was found that the aluminum tristearate with its special Properties that guarantee flexural, tensile and compressive strength that were previously only available using expensive aggregates such as epoxy and alpha plasters, these have been achieved Epoxy resins for underground mining are only permitted by necessity, as they are a) in the event of a fire hazard, the work crew and the formaldehyde in the resins also a nuisance to the workplace due to constant evaporation causes.

b) Der Preis dieser erfindungsgemäßen Masse beträgt nur einen Bruchteil der bisher bekannten Konsolidierungsmassen mit Bindeharzzusätzen.b) The price of this mass according to the invention is only a fraction the previously known consolidation masses with binder resin additives.

Nachstehend wird die erfindungsgemäße Mischung beschrieben: 1.) ca. 60 % Gips, vorzugsweise aus der Rauchgasentschwefelung hinter Kohlekraftwerken bzw. Gasreinigungsanlagen anderer Verbrennungseinrichtungen; 2.) ca. 11 % Anhydrit, vorzugsweise synthetischer Anhydrit; 3.) ca. 15 * Elektrofilterstaub, ebenfalls anfailend vorzugsweise hinter Kohlekraftwerken; 4.) ca. 3 % faserartige Armierungsstoffe; 5.) ca. 11 % Zement der Qualitätsgüte PZ 450 F und/oder PZ 550 F, PZ 600 Fg 6.) ca. 2,5 % Calciumchlorid-Dihydrat, das hinter Kohlekraftwerks-Rauchgasentschwefelungsanlagen vorzugsweise ausgeschleust wird; 7.) 0,3 - 2 * Stearate oder deren Gemische, vorzugsweise Aluminium-Tristearat.The mixture according to the invention is described below: 1.) approx. 60% gypsum, preferably from flue gas desulphurization behind coal-fired power plants or Gas cleaning systems for other incineration facilities; 2.) approx. 11% anhydrite, preferably synthetic anhydrite; 3.) approx. 15 * electrostatic precipitator dust, also received preferably behind coal-fired power plants; 4.) approx. 3% fibrous reinforcing materials; 5.) approx. 11% Cement of the quality grade PZ 450 F and / or PZ 550 F, PZ 600 Fg 6.) approx. 2.5% calcium chloride dihydrate, which is behind coal-fired flue gas desulphurisation systems is preferably discharged; 7.) 0.3-2 * stearates or mixtures thereof, preferably Aluminum tristearate.

Zusatz-Patentansprüche: Additional claims:

Claims (1)

Zusatz-Patentansprüche: ==================== Anspruch 1) Spritzmassen zur Verfestigung des frisch geschnittenen Gebirges, vorzugsweise für Bergbaustrecken mit frühtragender Biege-, - Zug- und Druckfestigkeit dadurch gekennzeichnet, daß eine minutenschnelle Festigkeit in einem Biegezugbereich von vorzugsweise über 70 kp/cm2 erreicht wird mit einer Masse, die aus ca. 60 % Gips vorzugsweise aus der Rauchgasentschwefelung hinter Kohlekraftwerken bzw. Gasreinigungsanlägen anderer Verbrennungseinrichtungen - besteht.Additional claims: ==================== Claim 1) injection molding compounds to consolidate the freshly cut mountains, preferably for mining routes with early bending, tensile and compressive strength, characterized in that A tensile strength in a matter of minutes in a flexural tensile range of preferably over 70 kp / cm2 is achieved with a mass consisting of approx. 60% plaster, preferably from the Flue gas desulphurization behind coal-fired power plants or other gas cleaning systems Incinerators - exists. Anspruch 2 Spritzmassen zur Verfestigung des frisch geschnittenen Gebirges, vorzugsweise für Bergbaustrecken mit frühtragender Biege-, Zug- und Druckfestigkeit nach Anspruch 1 dadurch gekennzeichnet, daß der Anteil an Anhydrit in der Masse synthetischer Anhydrit ist.Claim 2 injection molding compounds for solidifying the freshly cut Mountains, preferably for mining routes with early bending, tensile and compressive strength according to claim 1, characterized in that the proportion of anhydrite in the mass synthetic anhydrite is. Anspruch 3 Spritzmassen zur Verfestigung des frisch geschnittenen Gebirges, vorzugsweise für Bergbaustrecken mit frühtragender Biege-, Zug- und Druckfestigkeit nach Anspruch 1 - 2, dadurch gekennzeichnet, daß der Masse ca.Claim 3 injection molding compounds for solidifying the freshly cut Mountains, preferably for mining routes with early bending, tensile and compressive strength according to claim 1 - 2, characterized in that the mass is approx. 2,5 % Calciumchlorid-Dihydrat zugesetzt werden.2.5% calcium chloride dihydrate can be added. Anspruch 4 ßpritzmassen zur VerSestigung des frisch geschnittenen Gebirges, vorzugsweise für Bergbaustrecken mit frühtragender Biege-, Zug- und Druckfestigkeit nach Anspruch 1 - 3, dadurch gekennzeichnet, daß der Masse 0,3 - 2 % Stearate, vorzugsweise Aluminium-ristearat, zugesetzt werden.Claim 4 injection molding compounds to consolidate the freshly cut Mountains, preferably for mining routes with early bending, tensile and compressive strength according to claim 1 - 3, characterized in that the mass 0.3-2% stearate, preferably Aluminum ristearate.
DE19813124001 1981-05-02 1981-06-19 Injection compositions for the consolidation of freshly cut rock, preferably for mining tunnels, having early-bearing flexural, tensile and compressive strength Ceased DE3124001A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19813124001 DE3124001A1 (en) 1981-06-19 1981-06-19 Injection compositions for the consolidation of freshly cut rock, preferably for mining tunnels, having early-bearing flexural, tensile and compressive strength
FR8207578A FR2504912A1 (en) 1981-05-02 1982-04-30 MASSES TO BE DESIGNED TO CONSOLIDATE THE FRESHLY HOLLOW FIELD, PREFERABLY FOR MINING GALLERIES
GB8212834A GB2097776B (en) 1981-05-02 1982-05-04 Injection composition for strengthening freshly-cut rock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813124001 DE3124001A1 (en) 1981-06-19 1981-06-19 Injection compositions for the consolidation of freshly cut rock, preferably for mining tunnels, having early-bearing flexural, tensile and compressive strength

Publications (1)

Publication Number Publication Date
DE3124001A1 true DE3124001A1 (en) 1983-01-13

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DE19813124001 Ceased DE3124001A1 (en) 1981-05-02 1981-06-19 Injection compositions for the consolidation of freshly cut rock, preferably for mining tunnels, having early-bearing flexural, tensile and compressive strength

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3614856A1 (en) * 1986-05-02 1987-11-05 Frank W Dr Ing Fink Method of mechanising the backfilling work in roadway support operations by using the same building material for sealing and cavity filling using pumping and by means of controlling the setting behaviour
AT384421B (en) * 1982-08-28 1987-11-10 Rhein Westfael Elect Werk Ag USE OF THE RESIDUAL SOLIDS OF THE DRY FUME DESULFURATION AS A BUILDING MATERIAL

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120348B (en) * 1959-09-04 1961-12-21 Knauf Westdeutsche Gips Plaster of paris or anhydrite compounds
GB1389429A (en) * 1972-11-07 1975-04-03 Bpb Industries Ltd Gypsum boards
DE2409231A1 (en) * 1974-02-27 1975-09-04 Heidelberg Portland Zement Structural bodies based on inorganic binders - reinforced with inorganic fibre mats
US3920795A (en) * 1973-03-08 1975-11-18 Dravo Corp Stabilization of sludge slurries
DE2805523A1 (en) * 1977-02-09 1978-09-07 Rhone Poulenc Ind METHOD FOR MANUFACTURING PLASTER COMPONENTS
DE2903515A1 (en) * 1978-01-31 1979-08-02 Rhone Poulenc Ind METHOD FOR PRODUCING PLASTER COMPONENTS

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120348B (en) * 1959-09-04 1961-12-21 Knauf Westdeutsche Gips Plaster of paris or anhydrite compounds
GB1389429A (en) * 1972-11-07 1975-04-03 Bpb Industries Ltd Gypsum boards
US3947285A (en) * 1972-11-07 1976-03-30 Bpb Industries Limited Accelerator
DE2342027B2 (en) * 1972-11-07 1976-12-09 Bpb Industries Ltd., London AGING-RESISTANT SET ACCELERATOR FOR USE IN THE MANUFACTURING OF PLASTERBOARD PANELS
US3920795A (en) * 1973-03-08 1975-11-18 Dravo Corp Stabilization of sludge slurries
DE2409231A1 (en) * 1974-02-27 1975-09-04 Heidelberg Portland Zement Structural bodies based on inorganic binders - reinforced with inorganic fibre mats
DE2805523A1 (en) * 1977-02-09 1978-09-07 Rhone Poulenc Ind METHOD FOR MANUFACTURING PLASTER COMPONENTS
DE2903515A1 (en) * 1978-01-31 1979-08-02 Rhone Poulenc Ind METHOD FOR PRODUCING PLASTER COMPONENTS

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DE-Z: Bergbau, 2/1980, S. 68-74 *
DE-Z: Glückauf, 111, 1975, Nr. 3, S. 114-119 *
DE-Z: Tiefbau, Ingenieurbau, Straßenbau, 1979, S. 86-89 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT384421B (en) * 1982-08-28 1987-11-10 Rhein Westfael Elect Werk Ag USE OF THE RESIDUAL SOLIDS OF THE DRY FUME DESULFURATION AS A BUILDING MATERIAL
DE3614856A1 (en) * 1986-05-02 1987-11-05 Frank W Dr Ing Fink Method of mechanising the backfilling work in roadway support operations by using the same building material for sealing and cavity filling using pumping and by means of controlling the setting behaviour

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