DE296246C - - Google Patents

Info

Publication number
DE296246C
DE296246C DENDAT296246D DE296246DA DE296246C DE 296246 C DE296246 C DE 296246C DE NDAT296246 D DENDAT296246 D DE NDAT296246D DE 296246D A DE296246D A DE 296246DA DE 296246 C DE296246 C DE 296246C
Authority
DE
Germany
Prior art keywords
pumps
conical recess
cone
hydraulic
explosive
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.)
Active
Application number
DENDAT296246D
Other languages
German (de)
Publication of DE296246C publication Critical patent/DE296246C/de
Active legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die Erfindung betrifft ein neues Verfahren zum Heraussprengen eines kegelförmigen Einbruchs aus einem unverritzten, nur nach einer Fläche zugänglichen Gebirgskörper mittels hydraulischer Sprengpumpen.The invention relates to a new method for blasting out a conical recess from an unscratched, only accessible after a surface rock mass by means of hydraulic Explosive pumps.

In der Zeichnung ist schematisch die Ausübung des Verfahrens an einem Beispiel veranschaulicht, und zwar zeigtIn the drawing, the execution of the method is schematically illustrated using an example, namely shows

Fig. ι eine Seitenansicht eines Stollens, von ίο dem aus ein Einbruch in die anstehende Gesteinsmasse erfolgen soll, undFig. Ι a side view of a tunnel, from which a break in the pending rock mass should take place, and

Fig. 2 eine Vorderansicht der Einbruchsstelle. Fig. 2 is a front view of the break-in point.

Das neue Verfahren besteht darin, daß zunächst eine achsiale Bohrung α und damit im Zusammenhang drei zusammenlaufende Bohrungen δ hergestellt werden. In diese zusammenlaufenden Bohrungen b werden die hydraulischen Sprengpumpen eingesetzt, so daß sie einen Kegelteil heraussprengen, wobei die achsiale Bohrung α die Gesteinsspannung im Innern des Kegels aufhebt und dadurch die Wirkung der Sprengpumpen erleichtert. Natürlich brauchen die Bohrungen α und b nicht vollständig in einem Punkt zusammenzulaufen, es kann auch ein Kegelstumpf ο. dgl. herausgesprengt werden.The new method consists in first producing an axial bore α and, in connection therewith, three converging bores δ. The hydraulic blast pumps are inserted into these converging bores b so that they blast out a part of the cone, the axial bore α canceling the rock stress inside the cone and thereby facilitating the action of the blast pumps. Of course, the bores α and b do not have to converge completely at one point; a truncated cone ο can also be. Like. Be blasted out.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zum Heraussprengen eines kegelförmigen Einbruchs mittels hydraulischer Sprengpumpen, dadurch gekennzeichnet, daß in der Achse des kegelförmigen Einbruchs eine Bohrung hergestellt wird, welche die Gesteinsspannung im Innern des Kegels aufhebt.Method for blasting out a conical recess by means of hydraulic Explosive pumps, characterized in that a bore is made in the axis of the conical recess which relieves the rock stress inside the cone. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT296246D Active DE296246C (en)

Publications (1)

Publication Number Publication Date
DE296246C true DE296246C (en)

Family

ID=550650

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT296246D Active DE296246C (en)

Country Status (1)

Country Link
DE (1) DE296246C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0482218A1 (en) * 1987-03-02 1992-04-29 Spetsializirovanny Trest Po Remontu Promyshlennykh Zdany I Soorzheny Pred. Chernoi Met. Tsentral. Raiona Tsentrmetallurgremont Process for the directed destruction of monolithic objects
US5634691A (en) * 1994-07-13 1997-06-03 Sungkyong Engineering & Construction Limited Method for excavating a working face by blasting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0482218A1 (en) * 1987-03-02 1992-04-29 Spetsializirovanny Trest Po Remontu Promyshlennykh Zdany I Soorzheny Pred. Chernoi Met. Tsentral. Raiona Tsentrmetallurgremont Process for the directed destruction of monolithic objects
US5634691A (en) * 1994-07-13 1997-06-03 Sungkyong Engineering & Construction Limited Method for excavating a working face by blasting

Similar Documents

Publication Publication Date Title
DE1952494C3 (en) Bullet
DE2158764B2 (en) METHOD OF MANUFACTURING UNDERGROUND COLUMNS
DE2425293A1 (en) METHOD AND MEANS FOR BREAKING A HARD COMPACT MATERIAL, IN PARTICULAR A ROCK
DE296246C (en)
DE441504C (en) Process for finishing wood
DE3440630C2 (en)
DE564418C (en) Drill guide device for producing a borehole parallel to a failure borehole
DE514148C (en) Process for finishing pre-forged shafts using a hammer or press
DE2641251A1 (en) METHOD AND DEVICE FOR BREAKING HARD MATERIAL, SUCH AS E. ROCK
DE924203C (en) Method and device for mining minerals by driving in an expandable tool
DE1942606C (en) Method for anchoring the individual wires of a tendon and device for carrying out the method
DE1278908B (en) Process for the damming of boreholes, which significantly supports the explosive effect
DE466005C (en) Process for the production of the spigot ends of hollow drills from round bars by means of drill sharpening and upsetting machines or the like.
DE2021870A1 (en) Method for connecting a pipe socket to a steam boiler chamber or a boiler drum, especially for high pressure steam
DE1603830B2 (en) Method for driving in a bolt that can be expanded in the area of its front end and the associated bolt and expansion member design
DE811180C (en) Process and device for the production of type wheels made of steel for numbering machines, pagination machines and the like. like
DE740706C (en) Method for producing an ammunition frame which is punched in the die as a blank
DE952300C (en) Method and device for the manufacture of highly stressed laminated wood objects, e.g. B. Webschuetzen
DE171776C (en)
DE861777C (en) Process for the cold forming of materials, especially metals, with a pronounced yield point
DE1173412B (en) Process for the extraction of coal from coal that tends to be fine-grained
DE1783112C2 (en) Hydraulically operated device for the mechanical dismantling of rock excretion us 1652483
AT77914B (en) Process for the production of multiple cranked crankshafts with offset strokes.
DE141883C (en)
DE927148C (en) Steel pit stamp