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
Links
- 238000000034 method Methods 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 2
- 239000002360 explosive Substances 0.000 claims description 2
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)
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)
| 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 |
-
0
- DE DENDAT296246D patent/DE296246C/de active Active
Cited By (2)
| 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 |
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