PL444979A1 - Method for determining the type of directional distribution of the horizontal radial velocity of ground vibrations and determining the directional angle of the highest horizontal radial velocity of ground vibrations during rock mining by firing explosive charges - Google Patents

Method for determining the type of directional distribution of the horizontal radial velocity of ground vibrations and determining the directional angle of the highest horizontal radial velocity of ground vibrations during rock mining by firing explosive charges

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Publication number
PL444979A1
PL444979A1 PL444979A PL44497923A PL444979A1 PL 444979 A1 PL444979 A1 PL 444979A1 PL 444979 A PL444979 A PL 444979A PL 44497923 A PL44497923 A PL 44497923A PL 444979 A1 PL444979 A1 PL 444979A1
Authority
PL
Poland
Prior art keywords
radial velocity
horizontal radial
ground vibrations
determining
directional
Prior art date
Application number
PL444979A
Other languages
Polish (pl)
Inventor
Tadeusz Chrzan
Original Assignee
POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego filed Critical POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego
Priority to PL444979A priority Critical patent/PL444979A1/en
Publication of PL444979A1 publication Critical patent/PL444979A1/en

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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
    • 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

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  • 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)

Abstract

Sposób określania typu rozkładu kierunkowego poziomej radialnej prędkości drgań gruntu oraz określenia kąta kierunkowego największej 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 pomiarów poziomej radialnej prędkości drgań gruntu dokonuje się za pomocą czujników prędkości drgań na wyznaczonych od 5° do 9° kątach kierunkowych α z zakresu od 0° do 90°, z których każdy 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 kąty kierunkowe α wyznacza się na połowie obwodu koła, przed czołem urabianego bloku skalnego w stałej odległości równej odległości obiektu chronionego od źródła drgań, kolejno odczytane wyniki pomiarów poziomej radialnej prędkości drgań gruntu dla każdego wyznaczonego kąta α nanosi się na układ współrzędnych i przedstawia graficznie za pomocą wykresu, z którego odczytuje się, czy dla poziomej radialnej prędkości drgań gruntu jest to rozkład prędkości drgań kołowy czy elipsoidalny i odczytuje się zakres kąta kierunkowego α o największej poziomej radialnej prędkości drgań gruntu.Method for determining the type of directional distribution of horizontal radial velocity of ground vibrations and determining the directional angle of the highest horizontal radial velocity of ground vibrations during rock mining by firing charges of explosives [MW] 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 to determine the seismic safety of objects located in the vicinity of the deposit being mined, characterized in that the measurements of the horizontal radial velocity of ground vibrations are made using vibration velocity sensors at directional angles α determined from 5° to 9° from the range of 0° to 90°, each of which 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 angles α are determined on half the circumference of a circle, in front of the front of the mined rock block at a constant distance equal to the distance of the protected object from the source of vibrations, the successively read measurement results of the horizontal radial velocity of ground vibrations for each determined angle α are plotted on the coordinate system and presented graphically using a chart from which it is read whether the horizontal radial velocity of ground vibrations has a circular or ellipsoidal vibration velocity distribution and the range of the directional angle α with the highest horizontal radial velocity of ground vibrations is read.

PL444979A 2023-05-24 2023-05-24 Method for determining the type of directional distribution of the horizontal radial velocity of ground vibrations and determining the directional angle of the highest horizontal radial velocity of ground vibrations during rock mining by firing explosive charges PL444979A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL444979A PL444979A1 (en) 2023-05-24 2023-05-24 Method for determining the type of directional distribution of the horizontal radial velocity of ground vibrations and determining the directional angle of the highest horizontal radial velocity of ground vibrations during rock mining by firing explosive charges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL444979A PL444979A1 (en) 2023-05-24 2023-05-24 Method for determining the type of directional distribution of the horizontal radial velocity of ground vibrations and determining the directional angle of the highest horizontal radial velocity of ground vibrations during rock mining by firing explosive charges

Publications (1)

Publication Number Publication Date
PL444979A1 true PL444979A1 (en) 2024-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL444979A PL444979A1 (en) 2023-05-24 2023-05-24 Method for determining the type of directional distribution of the horizontal radial velocity of ground vibrations and determining the directional angle of the highest horizontal radial velocity of ground vibrations during rock mining by firing explosive charges

Country Status (1)

Country Link
PL (1) PL444979A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL432966A1 (en) * 2020-02-20 2021-08-23 POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego Method for determining the type of directional distribution, of the horizontal radial velocity vector of ground vibrations and areas with a reduced value of these vibrations in the vicinity of an open-pit mine
PL432964A1 (en) * 2020-02-20 2021-08-23 POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego Method for determining the type of directional distribution, of the horizontal tangent velocity vector of ground vibrations and areas with a reduced value of these vibrations in the vicinity of an open-pit mine
PL432959A1 (en) * 2020-02-20 2021-08-23 POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego Method for determining the type of directional distribution of the horizontal radial acceleration vector of ground vibrations and areas with a reduced value of these vibrations in the vicinity of an open-pit mine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL432966A1 (en) * 2020-02-20 2021-08-23 POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego Method for determining the type of directional distribution, of the horizontal radial velocity vector of ground vibrations and areas with a reduced value of these vibrations in the vicinity of an open-pit mine
PL432964A1 (en) * 2020-02-20 2021-08-23 POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego Method for determining the type of directional distribution, of the horizontal tangent velocity vector of ground vibrations and areas with a reduced value of these vibrations in the vicinity of an open-pit mine
PL432959A1 (en) * 2020-02-20 2021-08-23 POLTEGOR-INSTYTUT Instytut Górnictwa Odkrywkowego Method for determining the type of directional distribution of the horizontal radial acceleration vector of ground vibrations and areas with a reduced value of these vibrations in the vicinity of an open-pit mine

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