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Dafang County's case and assessment

Dafang County's case and assessment

(Summary description)ChinaPetroleumandChemicalCorporationEastChinaPetroleumBureauSixthGeophysicalBrigadeinthegeologicalexplorationblastinginNiuchangTownship,LiuzhiSpecialZone,accordingtolocalresidents,theirhousesweredamagedintheblasting;ChinaPetroleumandChemicalCorporationEastChinaPetroleumBureauInordertoverifywhetherthedamageofthehouseinNiuchangTownshipwascausedbytheblasting,theSixGeophysicalBrigadedecidedtosimulatetheblastingsituationofNiuchangTownshipofLiuzhiSpecialZoneinAnxinVillage,GaodianTownship,DafangCounty,andentrustedourcompanytoblastvibrationatthesite.Testwork;accordingtothepreviousloadingrecords,theminimumchargeforgeologicalexplorationblastingis2kg,andthemaximumchargeis6kg.Forthemeasurementdataismorereliable,thisinstrumentusesatotalof4instruments,accordingtotheenvironmentalsituationofNiuchangTownship.Incombinationwiththelocalenvironment,atotalof12measuringpointsweresetup,andtheamountofthedrugwasmeasuredseveraltimes.Thedatawasobtainedin33groups,andthedataacquisitionratewasabout92%.Thedatanotrecordedbytherecordermaybeseparatedfromthepositionofthesensor.Areadistanceandheightdifferencearerelated.　　Shots:1dose:2kgdataacquisitionrateis100% NumberingMeasuringpointMeasuringpointfromtheexplosionareaDistance(m)Measuredvibrationvelocity(cm/s)Mainvibrationfrequency(Hz)Vibrationduration(s)135320-0.05524.0960.096632359270.00835.3980.19887334518-0.23633.8980.05362424118-0.21658.8240.010255242250.00723.3920.677256244200.25057.1430.02888733325-0.23349.3830.044948354twentythree-0.29244.4440.03781933230-0.11830.6510.0943710270280.0567.8900.6610011272260.05937.3830.0591212248350.0050.2751.89875　　Shots:2Dosage:2kgdataacquisitionrateis75% NumberingMeasuringpointMeasuringpointfromtheexplosionareaDistance(m)Measuredvibrationvelocity(cm/s)Mainvibrationfrequency(Hz)Vibrationduration(s)1353200.06513.2450.082752359270.00821.7390.577883345180.13414.9810.062884241180.05419.1390.008255242250.00712.1950.511256244200.06917.7780.006127270280.0418.7910.596378272260.05610.1010.489879248350.0050.3771.89975 Shots:3dose:6kgdataacquisitionrateis100%

Dafang County's case and assessment

(Summary description)ChinaPetroleumandChemicalCorporationEastChinaPetroleumBureauSixthGeophysicalBrigadeinthegeologicalexplorationblastinginNiuchangTownship,LiuzhiSpecialZone,accordingtolocalresidents,theirhousesweredamagedintheblasting;ChinaPetroleumandChemicalCorporationEastChinaPetroleumBureauInordertoverifywhetherthedamageofthehouseinNiuchangTownshipwascausedbytheblasting,theSixGeophysicalBrigadedecidedtosimulatetheblastingsituationofNiuchangTownshipofLiuzhiSpecialZoneinAnxinVillage,GaodianTownship,DafangCounty,andentrustedourcompanytoblastvibrationatthesite.Testwork;accordingtothepreviousloadingrecords,theminimumchargeforgeologicalexplorationblastingis2kg,andthemaximumchargeis6kg.Forthemeasurementdataismorereliable,thisinstrumentusesatotalof4instruments,accordingtotheenvironmentalsituationofNiuchangTownship.Incombinationwiththelocalenvironment,atotalof12measuringpointsweresetup,andtheamountofthedrugwasmeasuredseveraltimes.Thedatawasobtainedin33groups,andthedataacquisitionratewasabout92%.Thedatanotrecordedbytherecordermaybeseparatedfromthepositionofthesensor.Areadistanceandheightdifferencearerelated.　　Shots:1dose:2kgdataacquisitionrateis100% NumberingMeasuringpointMeasuringpointfromtheexplosionareaDistance(m)Measuredvibrationvelocity(cm/s)Mainvibrationfrequency(Hz)Vibrationduration(s)135320-0.05524.0960.096632359270.00835.3980.19887334518-0.23633.8980.05362424118-0.21658.8240.010255242250.00723.3920.677256244200.25057.1430.02888733325-0.23349.3830.044948354twentythree-0.29244.4440.03781933230-0.11830.6510.0943710270280.0567.8900.6610011272260.05937.3830.0591212248350.0050.2751.89875　　Shots:2Dosage:2kgdataacquisitionrateis75% NumberingMeasuringpointMeasuringpointfromtheexplosionareaDistance(m)Measuredvibrationvelocity(cm/s)Mainvibrationfrequency(Hz)Vibrationduration(s)1353200.06513.2450.082752359270.00821.7390.577883345180.13414.9810.062884241180.05419.1390.008255242250.00712.1950.511256244200.06917.7780.006127270280.0418.7910.596378272260.05610.1010.489879248350.0050.3771.89975 Shots:3dose:6kgdataacquisitionrateis100%

Information

China Petroleum and Chemical Corporation East China Petroleum Bureau Sixth Geophysical Brigade in the geological exploration blasting in Niuchang Township, Liuzhi Special Zone, according to local residents, their houses were damaged in the blasting; China Petroleum and Chemical Corporation East China Petroleum Bureau In order to verify whether the damage of the house in Niuchang Township was caused by the blasting, the Six Geophysical Brigade decided to simulate the blasting situation of Niuchang Township of Liuzhi Special Zone in Anxin Village, Gaodian Township, Dafang County, and entrusted our company to blast vibration at the site. Test work; according to the previous loading records, the minimum charge for geological exploration blasting is 2kg, and the maximum charge is 6kg. For the measurement data is more reliable, this instrument uses a total of 4 instruments, according to the environmental situation of Niuchang Township. In combination with the local environment, a total of 12 measuring points were set up, and the amount of the drug was measured several times. The data was obtained in 33 groups, and the data acquisition rate was about 92%. The data not recorded by the recorder may be separated from the position of the sensor. Area distance and height difference are related.

　　Shots: 1 dose: 2kg data acquisition rate is 100%

 

Numbering

Measuring point

Measuring point from the explosion area

Distance (m)

Measured vibration velocity (cm/s)

Main vibration frequency (Hz)

Vibration duration (s)

1

353

20

-0.055

24.096

0.09663

2

359

27

0.008

35.398

0.19887

3

345

18

-0.236

33.898

0.05362

4

241

18

-0.216

58.824

0.01025

5

242

25

0.007

23.392

0.67725

6

244

20

0.250

57.143

0.02888

7

333

25

-0.233

49.383

0.04494

8

354

twenty three

-0.292

44.444

0.03781

9

332

30

-0.118

30.651

0.09437

10

270

28

0.056

7.890

0.66100

11

272

26

0.059

37.383

0.05912

12

248

35

0.005

0.275

1.89875

　　

Shots: 2 Dosage: 2kg data acquisition rate is 75%

 

Numbering

Measuring point

Measuring point from the explosion area

Distance (m)

Measured vibration velocity (cm/s)

Main vibration frequency (Hz)

Vibration duration (s)

1

353

20

0.065

13.245

0.08275

2

359

27

0.008

21.739

0.57788

3

345

18

0.134

14.981

0.06288

4

241

18

0.054

19.139

0.00825

5

242

25

0.007

12.195

0.51125

6

244

20

0.069

17.778

0.00612

7

270

28

0.041

8.791

0.59637

8

272

26

0.056

10.101

0.48987

9

248

35

0.005

0.377

1.89975

 

Shots: 3 dose: 6kg data acquisition rate is 100%

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The fourth blasting vibration measurement technology seminar was held
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Time of issue : 2019-05-30 17:34:00
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Time of issue : 2019-05-30 17:27:00
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Time of issue : 2019-05-30 17:11:00
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