PL444980A1 - Method for determining the frequency of a paraseismic wave in the radial direction for determining the type of directional distribution of the horizontal radial velocity of ground vibrations during rock mining by firing explosive charges - Google Patents
Method for determining the frequency of a paraseismic wave in the radial direction for determining the type of directional distribution of the horizontal radial velocity of ground vibrations during rock mining by firing explosive chargesInfo
- Publication number
- PL444980A1 PL444980A1 PL444980A PL44498023A PL444980A1 PL 444980 A1 PL444980 A1 PL 444980A1 PL 444980 A PL444980 A PL 444980A PL 44498023 A PL44498023 A PL 44498023A PL 444980 A1 PL444980 A1 PL 444980A1
- Authority
- PL
- Poland
- Prior art keywords
- determining
- velocity
- product
- block
- cox
- Prior art date
Links
- 239000011435 rock Substances 0.000 title abstract 6
- 239000002360 explosive Substances 0.000 title abstract 4
- 238000005065 mining Methods 0.000 title abstract 3
- 238000010304 firing Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 2
- 238000005474 detonation Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/30—Analysis
- G01V1/307—Analysis for determining seismic attributes, e.g. amplitude, instantaneous phase or frequency, reflection strength or polarity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/30—Analysis
- G01V1/303—Analysis for determining velocity profiles or travel times
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Sposób określania częstotliwości fali podłużnej na kierunku radialnym dla określenia typu rozkładu kierunkowego poziomej radialnej prędkości drgań gruntu przy urabianiu skał poprzez odpalenie ładunków materiałów wybuchowych MW umieszczonych w rozmieszczonych w linii otworach strzałowych i odpalanych kolejno z opóźnieniem milisekundowym w stosunku do poprzedniego ładunku, znajdujący zastosowanie w górnictwie odkrywkowym w celu określenia bezpieczeństwa sejsmicznego obiektów znajdujących się w pobliżu urabianego złoża, charakteryzuje się tym, że wartość, mającej wpływ na wartość wskaźnika rozkładu kierunkowego drgań na kierunku X będącym kierunkiem prostopadłym do linii otworów strzałowych, częstotliwości drgań fx oblicza się z zależności, którą stanowi iloczyn stosunku prędkości Vt detonacji materiału wybuchowego MW do wartości 2π oraz pierwiastka kwadratowego ze stosunku iloczynu gęstości objętościowej pmw materiału wybuchowego MW i prędkości Cox fali podłużnej na kierunku X w złożu do iloczynu gęstości objętościowej ρs skały, prędkości drgań Vx cząsteczek bloczka na kierunku X oraz dwukrotności objętości Vb urabianego bloczka skalnego; fx=[(Vt/(2π)]٭[ρmw٭Cox/:/(ρs٭Vx٭Vb*2)]˄(1/2); gdzie; Vb-objętość urabianego bloczka skalnego stanowi iloczyn wartości zabioru z, odległości między otworami strzałowymi a oraz wysokości bloczka H; Vb=a*z*H; prędkość drgań Vx cząsteczek bloczka na kierunku X stanowi iloczyn odkształcenia krytycznego bloczka skalnego ɛx oraz prędkości Cox fali podłużnej na kierunku X w złożu; Vx=ɛx٭Cox.The method of determining the frequency of a longitudinal wave in a radial direction for determining the type of directional distribution of horizontal radial velocity of ground vibrations during rock mining by firing charges of explosive materials placed in blast holes arranged in a line and fired successively with a millisecond delay in relation to the previous charge, used in opencast mining in order to determine the seismic safety of objects located in the vicinity of the deposit being mined, is characterized in that the value of the vibration frequency fx, which affects the value of the directional distribution index of vibrations in the direction X, which is the direction perpendicular to the line of blast holes, is calculated from the relationship which is the product of the ratio of the detonation velocity Vt of the explosive material to the value of 2π and the square root of the ratio of the product of the volumetric density pmw of the explosive material and the velocity Cox of the longitudinal wave in the direction X in the deposit to the product of the volumetric density ρs of the rock, the vibration velocity Vx of the block particles in the direction X and twice the volume Vb of the mined rock block; fx=[(Vt/(2π)]٭[ρmw٭Cox/:/(ρs٭Vx٭Vb*2)]˄(1/2); where; Vb-volume of the mined rock block is the product of the value of the take z, the distance between the blast holes a and the height of the block H; Vb=a*z*H; the vibration velocity Vx of the block particles in the X direction is the product of the critical deformation of the rock block ɛx and the velocity Cox of the longitudinal wave in the X direction in the deposit; Vx=ɛx٭Cox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL444980A PL444980A1 (en) | 2023-05-24 | 2023-05-24 | Method for determining the frequency of a paraseismic wave in the radial direction for determining the type of directional distribution of the horizontal radial velocity of ground vibrations during rock mining by firing explosive charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL444980A PL444980A1 (en) | 2023-05-24 | 2023-05-24 | Method for determining the frequency of a paraseismic wave in the radial direction for determining the type of directional distribution of the horizontal radial velocity of ground vibrations during rock mining by firing explosive charges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL444980A1 true PL444980A1 (en) | 2024-11-25 |
Family
ID=93608991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL444980A PL444980A1 (en) | 2023-05-24 | 2023-05-24 | Method for determining the frequency of a paraseismic wave in the radial direction for determining the type of directional distribution of the horizontal radial velocity of ground vibrations during rock mining by firing explosive charges |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL444980A1 (en) |
-
2023
- 2023-05-24 PL PL444980A patent/PL444980A1/en unknown
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