US1195781A - Method of channeling and severing by blasting - Google Patents
Method of channeling and severing by blasting Download PDFInfo
- Publication number
- US1195781A US1195781A US1195781DA US1195781A US 1195781 A US1195781 A US 1195781A US 1195781D A US1195781D A US 1195781DA US 1195781 A US1195781 A US 1195781A
- Authority
- US
- United States
- Prior art keywords
- holes
- channeling
- blasting
- severing
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title description 10
- 238000005422 blasting Methods 0.000 title description 5
- 230000005465 channeling Effects 0.000 title description 4
- 239000000463 material Substances 0.000 description 6
- 238000003776 cleavage reaction Methods 0.000 description 4
- 230000007017 scission Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 241001446467 Mama Species 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
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
Definitions
- My invention consists in the method of forming holes in the face or breast of the material where the tunnel, shaft or quarry is located; said holes to be vertical in the case of shaft and quarry excavation and horizontal in the case of tunnel excavation; said holes to be so formed and placed that they will locate the approximate outline of the tunnel, shaft or quarry when the blast is made, retaining in place the material forming the walls of the shafts, tunnels or quarries, and in this way adding greatly to the strength of the work and the safety of the workmen, besides saving the necessity of handling the excess of material which is occasioned by the present method of blasting. I attain this object by the method shown in the accompanying drawing.
- Figure 1 is a view of the face of the material showing the drill holes, some of which are to be blasted.
- Fig. 2 is a sectional view along the line XY of Fig. 1, showing the preferred method of charging one of the holes located along the desired outline.
- a series of holes A, B, C, D are drilled at various places around the contour of that portion of the shaft or tunnel which is to be removed, and a number of intermediate holes 3, l, 5, 6 are drilled adjacent the roof, sides,
- Each 40 of these latter holes shall be of suitable depth and size, with oppositely located grooves as shown, for directing the line of cleavage. They shall be charged with a suitable quantity of powder, 7, and proper 4 tamping, 8, (Fig. 2), or other suitable explosive'in such manner as to form an equalizing air-chamber, 9, and to be fired separately or together by the fuse, 15, or electrically, in order to accomplish the purpose set forth. Holes 10, 11, 12, 13 and 14, suitably placed, show ordinary blast-holes and may be used to break up the body of the rock or material, subsequent tothe blasts made under my said invention.
- the method of channeling and severing material which consists in forming a plurality of holes along the contour of the object to be severed to limit the cleavage, forming additional holes intermediate to said aforementioned holes to direct the cleavage and exerting an expansive force in said additional holes to sever the object.
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
TIA. CLARK. METHOD OF CHANNELING AND SEVERING BY BLASTING.
APPLICATION FILED SEPT-16,1915.
1,195,781. Patented Aug. 22, 1916.
ms mamas PETERS cm, wAsnlnmrou, D c
UNITED STATES PATENT OFFICE.
TERE A. CLARK, OF CHICAGO, ILLINOIS.
METHOD OF CHANNELING AND SEVERIN Gr BY IBLASTING.
Specification of Letters Patent.
Patented Aug. 22, 1916.
Application filed September 16, 1915. Serial No. 51,110.
To all whom it may concern:
Be it known that I, TERE A. CLARK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Method of Channeling and Severing by' Blasting, of which the following is the specification.
My invention consists in the method of forming holes in the face or breast of the material where the tunnel, shaft or quarry is located; said holes to be vertical in the case of shaft and quarry excavation and horizontal in the case of tunnel excavation; said holes to be so formed and placed that they will locate the approximate outline of the tunnel, shaft or quarry when the blast is made, retaining in place the material forming the walls of the shafts, tunnels or quarries, and in this way adding greatly to the strength of the work and the safety of the workmen, besides saving the necessity of handling the excess of material which is occasioned by the present method of blasting. I attain this object by the method shown in the accompanying drawing.
Figure 1 is a view of the face of the material showing the drill holes, some of which are to be blasted. Fig. 2 is a sectional view along the line XY of Fig. 1, showing the preferred method of charging one of the holes located along the desired outline.
In my improved method of blasting, a series of holes A, B, C, D are drilled at various places around the contour of that portion of the shaft or tunnel which is to be removed, and a number of intermediate holes 3, l, 5, 6 are drilled adjacent the roof, sides,
and floor of the tunnel, or peripherally of the shaft, to receive the explosive. Each 40 of these latter holes shall be of suitable depth and size, with oppositely located grooves as shown, for directing the line of cleavage. They shall be charged with a suitable quantity of powder, 7, and proper 4 tamping, 8, (Fig. 2), or other suitable explosive'in such manner as to form an equalizing air-chamber, 9, and to be fired separately or together by the fuse, 15, or electrically, in order to accomplish the purpose set forth. Holes 10, 11, 12, 13 and 14, suitably placed, show ordinary blast-holes and may be used to break up the body of the rock or material, subsequent tothe blasts made under my said invention. I do not claim the shape of the holes 3, 1, 5, 6 as new, but simply the method of tunneling, shaft-sinking and quarrying, by using such holes along the outline to direct the line of cleavage, in combination with the (preferably round) holes not to be charged, which limit the effect and force of the blasts made within the space intended.
Claim:
The method of channeling and severing material which consists in forming a plurality of holes along the contour of the object to be severed to limit the cleavage, forming additional holes intermediate to said aforementioned holes to direct the cleavage and exerting an expansive force in said additional holes to sever the object.
TERE A. CLARK.
Witness S. B. MOCONNIOO.
copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1195781A true US1195781A (en) | 1916-08-22 |
Family
ID=3263726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1195781D Expired - Lifetime US1195781A (en) | Method of channeling and severing by blasting |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1195781A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2546686A (en) * | 1947-03-21 | 1951-03-27 | Du Pont | Blasting device |
| US3637020A (en) * | 1969-07-18 | 1972-01-25 | Shell Oil Co | Tensile-stress fracturing |
| US4205610A (en) * | 1978-04-10 | 1980-06-03 | Geokinetics Inc. | Shale oil recovery process |
| US4367901A (en) * | 1980-10-28 | 1983-01-11 | Occidental Oil Shale, Inc. | Method for forming an in situ oil shale retort |
-
0
- US US1195781D patent/US1195781A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2546686A (en) * | 1947-03-21 | 1951-03-27 | Du Pont | Blasting device |
| US3637020A (en) * | 1969-07-18 | 1972-01-25 | Shell Oil Co | Tensile-stress fracturing |
| US4205610A (en) * | 1978-04-10 | 1980-06-03 | Geokinetics Inc. | Shale oil recovery process |
| US4367901A (en) * | 1980-10-28 | 1983-01-11 | Occidental Oil Shale, Inc. | Method for forming an in situ oil shale retort |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0692611B1 (en) | Method for excavating a working face | |
| CN104634199B (en) | Method for realizing smooth blasting of tunnel peripheral eyes by using detonating cord and detonating tube detonator | |
| CN105937395B (en) | A kind of comprehensive dig of coal mine big cross section hard-rock tunnel combines rapidly and efficiently driving method with big gun pick | |
| US20080236434A1 (en) | Mechanical Stemming Apparatus for Mining Blasting Operations | |
| CN208282701U (en) | A kind of segment algorithm applied to photoface exploision | |
| CN109341449A (en) | A kind of high courtyard primary drilling Discrete control explosion well completion method of big section | |
| Adhikari | Studies on flyrock at limestone quarries | |
| CN104453898A (en) | Deep hole blasting and static water injecting combining coal seam weakening method | |
| US1195781A (en) | Method of channeling and severing by blasting | |
| JP2015025239A (en) | Tunnel excavation method | |
| CN110879028A (en) | Surface mine blasting technical method for preventing frozen layer from being massive | |
| CN102787843A (en) | Dirt band-containing coal seam working surface mining process | |
| KR101511223B1 (en) | Open-cut blasting using 6 freeface | |
| CN104879128A (en) | Steep-dip ultra-thick coalbed mining technique based on top-coal advancing pre-detonation weakening | |
| KR101695384B1 (en) | Granite quarry blasting method using precision explosives | |
| SU898066A1 (en) | Method of unattended mining of coal beds | |
| CN115493466B (en) | Rapid rock blasting excavation method based on rod jet group | |
| LU500151B1 (en) | Closed Free Face Cut Blasting Method Capable of Improving Blasting Efficiency | |
| US465410A (en) | Method of blasting rock | |
| US4183584A (en) | Dressing a rock face for abandonment | |
| US3865436A (en) | Method of boring through hard rock formations | |
| RU2646152C2 (en) | System for explosive blasting of bump hazard rocks | |
| RU2232896C1 (en) | Method for contouring driving mines | |
| RU2094613C1 (en) | Method for driving underground working close to outburst-risky rock mass | |
| SU791975A1 (en) | Method of driving preparatory working in beds prezenting coal and gas outburst hazard |