WO1986004672A1 - Method and device for controlling in situ movement processes in solid media - Google Patents
Method and device for controlling in situ movement processes in solid media Download PDFInfo
- Publication number
- WO1986004672A1 WO1986004672A1 PCT/HU1986/000008 HU8600008W WO8604672A1 WO 1986004672 A1 WO1986004672 A1 WO 1986004672A1 HU 8600008 W HU8600008 W HU 8600008W WO 8604672 A1 WO8604672 A1 WO 8604672A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensors
- medium
- movement
- signal
- signal transmitters
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000007787 solid Substances 0.000 title claims abstract description 18
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 12
- 230000001133 acceleration Effects 0.000 claims abstract description 9
- 230000011664 signaling Effects 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 15
- 230000004807 localization Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 20
- 238000011835 investigation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000012237 artificial material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
- E21F17/185—Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
Definitions
- the invention relates to a method for examining movement processes taking place in solid media, in particular for examining in the vicinity of.
- the invention further relates to a device for the investigation (perception, control) of movement processes taking place in solid media in situ.
- the constantly increasing energy demand makes it increasingly necessary to develop energy sources and raw material sources in mining, the geological conditions of which differ more or less from the usual ones.
- quarry construction is carried out on a broad front, in which the hanging rock immediately above the mineral to be mined is brought to a spontaneous or provoked demolition.
- measuring sites defined according to a specific network are provided with measuring devices - for example with state signal transmitters designed for the risk of an expected gas outbreak or with devices serving for measuring and / or signaling states related to mechanical strength. With these measuring devices, one or more state characteristics of the geological system are measured. Through repeated or continuous measurements, the tendency to change the
- the mining activity is then modified if necessary by means of the forecast based on this.
- the method generally includes observing the conditions of a geological system from certain points of view or influencing the changes in state on this basis. She gives ; However, no concrete solution for the in situ investigation of the partial movement processes taking place inside the rock.
- the aim of the invention was to eliminate the danger and, on the other hand, the uncertainty of the possible conventional investigation and to create a method or a device with which information can be obtained in situ about the movement processes taking place inside the solid rock. This information and also its chronological course enable the inner Track movement changes safely and objectively or take the necessary measures based on the observations.
- the movement processes taking place in the interior of the rock can be perceived, observed and registered by means of electrical sensors arranged appropriately in the solid medium.
- signals can be formed which discontinuously or continuously signal information about the movement processes, their location, size and, if necessary, their acceleration with the desired accuracy. These can then be registered, evaluated and processed under suitable and secure conditions.
- the invention accordingly relates to a method for examining movement processes occurring in solid media in situ, in which 'electrical sensors and / or — if desired outside the medium — signal transmitters are attached and fastened in the solid medium.
- signals corresponding to the location and / or the extent and / or the acceleration of the movement process are formed, these signals are transmitted via lines and / or wirelessly and then received, registered and / or processed.
- signals corresponding to the respective value of the - possibly resulting - impedance of the sensors are formed and the signals are modulated with them.
- the signals are formed in the frequency and / or time division multiplex system and / or with different modulation.
- the invention further relates to a device for the investigation of movement processes taking place in solid media in situ, which supply electrical energy having. It is characteristic of the device that it has sensors arranged and fixed at the examination point (s) of the medium, signal transmitters assembled or connected to the sensors, a signal receiver connected to the signal transmitters via lines or wirelessly, and, if desired, a registration and / or data processing unit.
- the sensors are preferably arranged in bores which are formed in the solid medium. It is further preferred if the sensors are also designed as acceleration sensors.
- the sensors are arranged in the form of a spatial so-called resistance network in which elements of the same impedance are connected in parallel.
- the sensors are designed as resistors deforming due to the movement of the medium or as a continuously divided capacitance which becomes shorter as a result of the movement of the medium.
- a further advantageous embodiment of the device contains electromagnetic signal transmitters and signal receivers, which are preferably designed as radio transmitters and receivers.
- Auoh is regarding the spatial sequence of the rock movements. it is advantageous to use several signal generators at the same time. In this case, the modulation of the signal transmitters is different and they are designed in the frequency and / or time division multiplex system.
- Fig. 1 shows an application of the invention in a deep mine where the observation of rock movements from one in the area of the mine located from or over the day takes place by means of an impedance network, which is arranged in a borehole, while in Fig.
- a bore 2 is provided in the area of the solid medium 1 to be examined, in which a impedance network 8 is attached, which is connected to the signal generator 5 via a line.
- the sensors 4 of the impedance network 8 are arranged at a corresponding distance from each other, parallel-connected elements of the same impedance.
- the signal transmitter 5 is expediently a radio transmitter which has its own current source and whose emitted signal modulation is controlled by the value of the resulting impedance of the impedance network 8.
- the signal generator 5 is connected via lines and / or wirelessly to the signal receiver 6 set up at a securely accessible location - possibly even for days -, expediently a radio receiver and also to the registration unit 7, which can be completed by a data processing unit not shown in the drawing .
- the part of the impedance network 8 concerned is torn off at the subsection 3 where the movement takes place. Because of the torn-off impedance elements, the resulting impedance perceived by the signal generator 5 changes and, accordingly, the modulation of the signal emitted. Since the point at which the bore 2, in which the examination points 3 and the impedance network 8 are located, is known, a change can be made from the signal and from its value be clear about the happening of the movement as well as the location of the rock area concerned. If the sensors 4 are also designed as acceleration sensors, the information mentioned is supplemented by data about the acceleration of the movement process.
- the bore 2 is designed to lead upwards from the excavation in order to examine a corresponding section of the hanging rock.
- the signal transmitters 5 assembled with the sensors 4 are arranged and fastened in the bore 2 at the examination sites 3.
- the signal transmitters 5 are expediently radio transmitters.
- the signal transmitters 5 are in wireless connection with a corresponding antenna 10.
- the antenna 10 is expediently arranged in a further bore drilled from the bore 2 at a distance of a few meters. At its lower end, the antenna 10 is connected to a metallic conductor 11 laid on the sole, via which the signals (if necessary also by wireless) are routed to the signal receiver 6. With an appropriate arrangement, the antenna can also be set up outside a borehole.
- the signal transmitters 5 are radio transmitter devices which emit signals of different frequencies and change the parameters of the emitted signal as a function of the rock movements.
- the signal transmitters 5 have independent current sources.
- the main advantages of the invention can be summarized as follows. a) A device can be placed in the solid rock, at the point to be observed, depending on the respective movement processes taking place inside the rock, its location and its extent - if necessary also from their acceleration - delivers objective signals in situ. These signals can be observed, registered and processed at a suitable location, in the desired frequency and under safe conditions. b) When used in the mine, the spatial and temporal course of the burglary and marking can be determined. Based on this, the later changes to be expected can be forecast.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU34185A HU206161B (en) | 1985-01-30 | 1985-01-30 | Device for indicating kinetic processes in situ, in a solid medium |
HU341/85 | 1985-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1986004672A1 true WO1986004672A1 (en) | 1986-08-14 |
Family
ID=10949170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/HU1986/000008 WO1986004672A1 (en) | 1985-01-30 | 1986-01-30 | Method and device for controlling in situ movement processes in solid media |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0211061A1 (en) |
JP (1) | JPS62501583A (en) |
DE (2) | DE3690039C1 (en) |
GB (1) | GB2183845B (en) |
HU (1) | HU206161B (en) |
WO (1) | WO1986004672A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0521234A2 (en) * | 1991-07-01 | 1993-01-07 | Moore Industries-International Inc. | Computerized remote resistance measurement system with fault detection |
DE19641196A1 (en) * | 1996-09-24 | 1998-04-02 | Andreas Dr Fischer | Detection method for metal object e.g. bomb in ground |
WO2000075604A1 (en) * | 1999-06-07 | 2000-12-14 | Deutsche Montan Technologie Gmbh | Device for measuring shifts in mountains |
US11414991B2 (en) * | 2018-11-06 | 2022-08-16 | China University Of Mining And Technology | System and method for monitoring bearing compression rate of filler in coal mine gob area |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3524101A1 (en) * | 1985-07-05 | 1987-01-08 | Battelle Institut E V | Method and device for continuously monitoring the state of wear of materials |
US5046366A (en) * | 1989-03-09 | 1991-09-10 | Csir | Apparatus for measuring deflection or deformation in pavement structures |
DE19806754A1 (en) * | 1998-02-18 | 1999-09-02 | Telefunken Microelectron | Sensor element |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT296642B (en) * | 1969-02-20 | 1972-02-25 | Interfels Intern Versuchsansta | Movement indicator for the visual display of rock, ground or building movements |
US3646553A (en) * | 1969-11-26 | 1972-02-29 | Ellsworth V Conkle | Roof micrometer and warning instrument |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH636698A5 (en) * | 1978-12-21 | 1983-06-15 | Foerderung Forschung Gmbh | METHOD AND DEVICE FOR DETERMINING SHIFTINGS IN A SOLID MEDIUM, ESPECIALLY IN THE GROUND, IN THE ROCK AND IN CONSTRUCTIONS. |
-
1985
- 1985-01-30 HU HU34185A patent/HU206161B/en not_active IP Right Cessation
-
1986
- 1986-01-30 WO PCT/HU1986/000008 patent/WO1986004672A1/en not_active Application Discontinuation
- 1986-01-30 DE DE19863690039 patent/DE3690039C1/de not_active Expired
- 1986-01-30 GB GB08622804A patent/GB2183845B/en not_active Expired
- 1986-01-30 DE DE19863690039 patent/DE3690039D2/en not_active Expired
- 1986-01-30 JP JP50096186A patent/JPS62501583A/en active Pending
- 1986-01-30 EP EP19860901118 patent/EP0211061A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT296642B (en) * | 1969-02-20 | 1972-02-25 | Interfels Intern Versuchsansta | Movement indicator for the visual display of rock, ground or building movements |
US3646553A (en) * | 1969-11-26 | 1972-02-29 | Ellsworth V Conkle | Roof micrometer and warning instrument |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0521234A2 (en) * | 1991-07-01 | 1993-01-07 | Moore Industries-International Inc. | Computerized remote resistance measurement system with fault detection |
EP0521234A3 (en) * | 1991-07-01 | 1995-03-08 | Moore Ind Int Inc | Computerized remote resistance measurement system with fault detection |
DE19641196A1 (en) * | 1996-09-24 | 1998-04-02 | Andreas Dr Fischer | Detection method for metal object e.g. bomb in ground |
DE19641196C2 (en) * | 1996-09-24 | 1998-07-09 | Andreas Dr Fischer | Method and device for detecting objects in the ground |
WO2000075604A1 (en) * | 1999-06-07 | 2000-12-14 | Deutsche Montan Technologie Gmbh | Device for measuring shifts in mountains |
AU763027B2 (en) * | 1999-06-07 | 2003-07-10 | Deutsche Montan Technologie Gmbh | Device for measuring shifts in mountains |
US6646440B1 (en) | 1999-06-07 | 2003-11-11 | Dmt Deutsche Montan Technologie Gmbh | Device for measuring shifts in mountains |
US11414991B2 (en) * | 2018-11-06 | 2022-08-16 | China University Of Mining And Technology | System and method for monitoring bearing compression rate of filler in coal mine gob area |
Also Published As
Publication number | Publication date |
---|---|
HUT39520A (en) | 1986-09-29 |
HU206161B (en) | 1992-08-28 |
DE3690039D2 (en) | 1987-01-29 |
DE3690039C1 (en) | 1989-03-16 |
GB2183845B (en) | 1989-01-11 |
GB8622804D0 (en) | 1986-10-29 |
GB2183845A (en) | 1987-06-10 |
JPS62501583A (en) | 1987-06-25 |
EP0211061A1 (en) | 1987-02-25 |
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