EP1362980B1 - Safety device for open-pit mining - Google Patents
Safety device for open-pit mining Download PDFInfo
- Publication number
- EP1362980B1 EP1362980B1 EP02078958A EP02078958A EP1362980B1 EP 1362980 B1 EP1362980 B1 EP 1362980B1 EP 02078958 A EP02078958 A EP 02078958A EP 02078958 A EP02078958 A EP 02078958A EP 1362980 B1 EP1362980 B1 EP 1362980B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rafter
- pliers
- hydraulic
- screw
- mining
- 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
- 238000005065 mining Methods 0.000 title claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims abstract description 3
- 230000002441 reversible effect Effects 0.000 claims description 4
- 230000004397 blinking Effects 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000000284 resting effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
Definitions
- the present invention concerns a safety device for workers inside and outside an open-cut mining yard, for preventing dangerous ground release.
- the aim set forth is reached by means of the safety device according to the present invention, mainly consisting of:
- the enclosed figures show a safety device for workers in an open-cut mining yard, comprising:
- the device according to the present invention provides the presence of a rafter hinged with liquid nitrogen for the telescopic sliding of all components.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Business, Economics & Management (AREA)
- Pulmonology (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Shovels (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
- The present invention concerns a safety device for workers inside and outside an open-cut mining yard, for preventing dangerous ground release.
- It is well known that an open-cut mining are often the cause of injuries due to the easy cave-in of the ground because of different reasons:
- the open-cut mining determines a quick evaporation of the ground around and causes a retirement of the soil with the following cracking that starts the land-sliding;
- the open-cut mining may reach and cut different layers of ground or more or less moist layers, with following instability;
- underground pipes may be present near the open-cut mining, determining further weakening of the ground's structure;
- further instability may be determined by vibrations of the traffic;
- the push load of the ground varies according to the variation of the ground itself;
- the load of the vehicles passing by gets summed to the natural push of the ground;
- the load of possible buildings nearby may weigh on the walls of the mining.
- From the document
GB352261 - It is the aim of the present invention to realize an automatic hooking system of containing panels for open-cut mining yards.
- The aim set forth is reached by means of the safety device according to the present invention, mainly consisting of:
- a couple of steel panels or panels of any other suitable material;
- a joint element between said panels, consisting of a central rafter, that may be automatically operated, and can be installed by means of hydraulic pliers connected to the arm of a crane or of a digger; the tensioning will be performed by the same pliers which have inside a hydraulic screwing and unscrewing mechanism. The widening of the rafter is performed mechanically through a conic couple that screws or unscrews the screw to one or two principles with a suitable capacity fixed onto the sliding element inside said rafter. A further mechanic unthreading with manual blocking allows to further widen the rafter for reaching greater mining widths, until a maximum extension of 4 meter width;
- a means for coupling between panels and rafter, consisting of a rubber buffer that allows the different components to bend one towards the other for making said panels adhere always and in any case to the walls of the mining, even when the are not perfectly parallel to each other;
- a plurality of plugs for blocking the panels and the rafter that also allow to pre-load said rubber buffer during assembling so as to confer the wanted stiffness to thewhole device even outside of the mining, during moving and installation;
- hydraulic pliers that may be installed onto each hydraulic crane for lorries or onto the arm of a digger. Once said pliers are inserted, the rafter gets blocked by means of two or three hydraulic screw-jacks. Inside the pliers body a reversible hydraulic motor allows to screw or unscrew the screw of the rafter coupled with a conical couple for automatically widening or tightening said rafter.
- The present invention will be described more in detail hereinbelow relating to the enclosed drawings, in which an embodiment is shown.
-
Figure 1 shows a lateral scheme of a safety device for workers in open-cut mining yards, as installed. -
Figures 2, 3, 4, 5, 6 ,7 , show the details of the device, and respectively:-
figure 2 shows apanel 1; -
figure 2 shows arafter 4 with a double threading for an automatic installation; -
figure 3 shows a coupling for carryingaccessories 6, that allows the insertion of a barrier carrying post directly onto said panel and forms the resting for a toe-clip board; -
figure 4 shows thebarrier carrying post 7, -
figure 5 shows asupport 8 for a blinking lamp 9.
-
-
Figure 6 shows an axonometric view of a complete device according to the present invention, as installed. - The enclosed figures show a safety device for workers in an open-cut mining yard, comprising:
- a couple of
panels 1 connected by one singlecentral rafter 4 that holds the push load of the ground and thus prevents the sliding thereof; - an
automatic rafter 4; - self-centring hydraulic pliers to be connected to the arm of a crane or of a digger, for the automatic installation of said
rafter 4; - a reversible hydraulic motor inside the body of the pliers, for the automatic tensioning of said
rafter 4, - a accessory-carrying male/
female joint 6 inserted onto saidpanel 1; - a
barrier carrying post 7; - a barrier having also the function of a parapet;
- a
support 8 for Dorman like lamps; - accessories for assembling the markings, hooks, brackets etc.
- In a possible variant, the device according to the present invention provides the presence of a rafter hinged with liquid nitrogen for the telescopic sliding of all components.
Claims (3)
- A safety device for workers inside and outside open-cut mining yards, for preventing dangerous soil releases, comprising:- a couple of panels (1) connected by one single central rafter (4) that holds the push load of the ground and thus prevents the sliding thereon;- an automatic rafter (4);- self-centring hydraulic pliers to be connected to the arm of a crane or of a digger, for the automatic installation of the rafter (4);- a reversible hydraulic motor inside the body of the pliers, for the automatic tensioning of the rafter (4),- a accessory-carrying male/female joint (6) inserted onto said panel (1);- a barrier carrying post (7);- a support (8) for Dorman like lamps;- accessories for assembling markings;characterized in that the automatically operated rafter (4) is installed by means of hydraulic pliers connected to the arm of a crane or of a digger, and the tensioning will be performed by the same pliers which have inside a hydraulic screwing and unscrewing mechanism and the widening of the rafter (4) is performed mechanically through a conic couple that screws or unscrews the screw to one or two principles with a suitable capacity fixed onto the sliding element inside said rafter.
- A device according to claim 1, characterized in that said means for coupling between panels (1) and rafter (4) consists of a rubber buffer that allows the different components to bend one towards the other for making said panels adhere always and in any case to the walls of the mining, even when the are not perfectly parallel to each other.
- A device according to claim 1, characterized in the presence, for the automatic installation, of hydraulic pliers that may be installed onto each hydraulic crane for lorries or onto the arm of a digger; once said pliers are inserted, the rafter gets blocked by means of two or three hydraulic screw-jacks, while inside the pliers body a reversible hydraulic motor allows to screw or unscrew the screw of the rafter coupled with a conical couple for automatically widening or tightening said rafter.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2002RM000271A ITRM20020271A1 (en) | 2002-05-16 | 2002-05-16 | SAFETY DEVICE FOR OPERATORS ON THE CONSTRUCTION SITE, IN THE PRESENCE OF OPEN EXCAVATIONS. |
ITRM20020271 | 2002-05-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1362980A1 EP1362980A1 (en) | 2003-11-19 |
EP1362980B1 true EP1362980B1 (en) | 2008-09-03 |
Family
ID=11456305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02078958A Expired - Lifetime EP1362980B1 (en) | 2002-05-16 | 2002-09-24 | Safety device for open-pit mining |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1362980B1 (en) |
AT (1) | ATE407282T1 (en) |
DE (1) | DE60228686D1 (en) |
IT (1) | ITRM20020271A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2943695B1 (en) * | 2009-03-30 | 2016-09-02 | Aej Dev | DEVICE FOR SHIELDING TRENCHES. |
ITTO20110791A1 (en) * | 2011-09-03 | 2011-12-03 | Renato Massa | DEVICE FOR THE SAFETY SETTING OF THE SIDE WALLS OF AN EXCAVATION |
JP6429512B2 (en) * | 2014-07-03 | 2018-11-28 | 株式会社大盛工業 | Road lining method |
CN104295313B (en) * | 2014-09-29 | 2017-08-15 | 温玉桂 | Position mining device and mining system |
DE102015109106B4 (en) * | 2015-06-09 | 2024-02-01 | Manfred Passler | shoring device |
GB2557606A (en) * | 2016-12-09 | 2018-06-27 | M G F Trench Construction Systems Ltd | Edge protection system |
JP6670799B2 (en) * | 2017-06-09 | 2020-03-25 | ヒロセホールディングス株式会社 | Jack cover |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3362168A (en) * | 1966-01-24 | 1968-01-09 | Dotlich Rade | Trench wall retainer |
DE1634601A1 (en) * | 1967-02-21 | 1970-09-17 | Fritz Schleith | Warning device for graves, tunnels and the like. |
DE1286970B (en) * | 1967-07-07 | 1969-01-09 | Wehrheim Heinzwalter | Device for shoring pits |
AT307328B (en) * | 1970-06-30 | 1973-05-25 | Krings Josef | Trench sheeting device |
DE2321564A1 (en) * | 1973-04-28 | 1974-11-14 | August Grote Werkzeugfabrik | DEVICE FOR STRENGTHENING THE WALL OF DITCHES, PIPE DITCHES AND THE LIKE |
JPS61134431A (en) * | 1984-12-05 | 1986-06-21 | Osaka Gas Co Ltd | Landslide protection device |
US5199824A (en) * | 1992-08-03 | 1993-04-06 | Smith Jeffrey F M | Excavation shoring system |
-
2002
- 2002-05-16 IT IT2002RM000271A patent/ITRM20020271A1/en unknown
- 2002-09-24 AT AT02078958T patent/ATE407282T1/en not_active IP Right Cessation
- 2002-09-24 EP EP02078958A patent/EP1362980B1/en not_active Expired - Lifetime
- 2002-09-24 DE DE60228686T patent/DE60228686D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ITRM20020271A0 (en) | 2002-05-16 |
ATE407282T1 (en) | 2008-09-15 |
DE60228686D1 (en) | 2008-10-16 |
ITRM20020271A1 (en) | 2003-11-17 |
EP1362980A1 (en) | 2003-11-19 |
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