PL447840A1 - Method for determining the maximum horizontal radial velocity of ground vibrations during rock mining by firing explosive charges - Google Patents
Method for determining the maximum horizontal radial velocity of ground vibrations during rock mining by firing explosive chargesInfo
- Publication number
- PL447840A1 PL447840A1 PL447840A PL44784024A PL447840A1 PL 447840 A1 PL447840 A1 PL 447840A1 PL 447840 A PL447840 A PL 447840A PL 44784024 A PL44784024 A PL 44784024A PL 447840 A1 PL447840 A1 PL 447840A1
- Authority
- PL
- Poland
- Prior art keywords
- horizontal radial
- radial velocity
- angle
- ground vibrations
- vibrations
- Prior art date
Links
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (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)
Abstract
Sposób określania maksymalnej poziomej radialnej prędkości drgań gruntu przy urabianiu skał poprzez odpalenie ładunków materiałów wybuchowych, które umieszcza się w rozmieszczonych w linii otworach strzałowych i które odpala się kolejno z opóźnieniem milisekundowym w stosunku do poprzedniego ładunku, dla dowolnego kąta kierunkowego α kołowego rozkładu prędkości drgań, charakteryzuje się tym, że pomiarów poziomej radialnej prędkości drgań gruntu dokonuje się za pomocą czujników prędkości drgań na jednym przyjętym kącie kierunkowym α, gdzie kąt kierunkowy α stanowi kąt pomiędzy linią otworów strzałowych a linią łączącą punkt pomiarowy ze źródłem drgań, które stanowi środkowy otwór strzałowy lub środek linii otworów strzałowych, przy czym kąt kierunkowy α wyznacza się na połowie obwodu koła, przed czołem urabianego bloku skalnego, w stałej odległości równej odległości obiektu chronionego od źródła drgań; następnie mając odczytane wyniki pomiarów poziomej radialnej prędkości drgań gruntu Vxa dla przyjętego kąta kierunkowego α wyznacza się wartość maksymalnej poziomej radialnej prędkość drgań gruntu Vx max z zależności, którą stanowi stosunek iloczynu wartości poziomej radialnej prędkości drgań gruntu Vxa i sinusa kąta 90° do sinusa kąta pomiarowego α (Vx max=VXα sin 90°/sin α).A method for determining the maximum horizontal radial velocity of ground vibrations during rock mining by firing explosive charges placed in blast holes arranged in a line and fired successively with a millisecond delay in relation to the previous charge, for any directional angle α of the circular vibration velocity distribution, characterized in that the horizontal radial velocity of ground vibrations is measured using vibration velocity sensors at one assumed directional angle α, where the directional angle α is the angle between the line of blast holes and the line connecting the measuring point with the source of vibrations, which is the central blast hole or the center of the line of blast holes, wherein the directional angle α is determined at half the circumference of the circle, in front of the face of the rock block being mined, at a constant distance equal to the distance of the protected object from the source of vibrations; then, having read the measurement results of the horizontal radial velocity of ground vibrations Vxa for the assumed directional angle α, the value of the maximum horizontal radial velocity of ground vibrations Vx max is determined from the relationship which is the ratio of the product of the value of the horizontal radial velocity of ground vibrations Vxa and the sine of the angle 90° to the sine of the measuring angle α (Vx max=VXα sin 90°/sin α).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL447840A PL447840A1 (en) | 2024-02-24 | 2024-02-24 | Method for determining the maximum horizontal radial velocity of ground vibrations during rock mining by firing explosive charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL447840A PL447840A1 (en) | 2024-02-24 | 2024-02-24 | Method for determining the maximum horizontal radial velocity of ground vibrations during rock mining by firing explosive charges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL447840A1 true PL447840A1 (en) | 2025-08-25 |
Family
ID=96808799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL447840A PL447840A1 (en) | 2024-02-24 | 2024-02-24 | Method for determining the maximum horizontal radial velocity of ground vibrations during rock mining by firing explosive charges |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL447840A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL420146A1 (en) * | 2017-01-11 | 2018-07-16 | POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego | Method for determination of the horizontal radial value of the ground vibrations speed vector for different distances from the vibration source |
-
2024
- 2024-02-24 PL PL447840A patent/PL447840A1/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL420146A1 (en) * | 2017-01-11 | 2018-07-16 | POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego | Method for determination of the horizontal radial value of the ground vibrations speed vector for different distances from the vibration source |
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