CN1060353A - Blasting of rock subregion and partition method - Google Patents
Blasting of rock subregion and partition method Download PDFInfo
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- CN1060353A CN1060353A CN 90107851 CN90107851A CN1060353A CN 1060353 A CN1060353 A CN 1060353A CN 90107851 CN90107851 CN 90107851 CN 90107851 A CN90107851 A CN 90107851A CN 1060353 A CN1060353 A CN 1060353A
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Abstract
The present invention relates to a kind of blasting of rock that is used to instruct the opencut explosion to produce divides and division methods.The present invention has broken through the notion of traditional rock mass classification, and the zone of forming with the quick-fried district of actual production is an object, and the explosion of rock mass is divided into four area classifications.The present invention has taken all factors into consideration the lumpiness of rock dynamic load characteristic, geological structure of rock mass and rock blasting and has formed, and the advanced gray digital model deal with data of employing, rock mass in the whole mining scope is carried out the explosion subregion, blasting parameter is selected for once in a zone, blasting efficiency can improve 20%, and the foundation boulder yield can reduce by 10%.
Description
The present invention relates to a kind of blasting of rock that is used to instruct the opencut explosion to produce divides and division methods.
Traditional rock blasting property grading that is used to instruct explosion to produce is representative have following several: (1) Soviet Union Pu Shi staging: 1/100 numerical value (being defined as the f coefficient) with the rock uniaxiality strength under static is standard, and rock is divided into ten grades; (2) the Su Shi staging of the Soviet Union: use avalanche 1M
3The explosive number that rock consumed or every avalanche 1M
3The big gun hole rice number that protolith consumed is that standard is carried out classification to rock; (3) by the wave impedance staging of rock: in this respect Russia and the U.S., daily have similarly by the method for wave impedance of rock classification, just thickness differs; (4) the rock mass classification method of Northeast China engineering college proposition is by the energy balance criterion, as grading criteria, rock is divided into ten grades with rock blasting funnel volume, shot rock LUMPINESS DISTRIBUTION situation and elastic wave velocity under the standard conditions; (5) Zhong Guo Changsha Mine Inst is a foundation with the longitudinal and transverse wave velocity of rock, rock strength and four factors of rock mass velocity of longitudinal wave, by fuzzy comprehensive evaluation method rock mass is carried out classification.Although above-mentioned stage division grading criterion and judging quota are different, method of testing is also variant, is object with the ore deposit rock all or is that main test target carries out classification with the ore deposit rock.The actual production explosion of opencut is that the unit carries out with quick-fried district, and the ore body storage requirement in each quick-fried district, geologic structure structure is intricate, as joint, crack, the ore deposit symbiosis of multiple rock etc.Therefore, when determining the blasting parameter of explosion in producing, must take into full account the characteristic of a primary rock mass in the zone, simultaneously, also must closelyer consider the dynamic load characteristic of rock practically.Obviously, above-mentioned several stage divisions have just departed from reality at least in the selection of its judging quota, and the blasting parameter of determining thus is also just reasonable inadequately.
Purpose of the present invention is intended to overcome problems of the prior art, to obtain a kind of lumpiness composition of considering rock dynamic load characteristic, geological structure of rock mass and rock blasting simultaneously, reaching to produce quick-fried district is that unit institute compositing area is the blasting of rock subregion and the partition method of object, with accurate controlled blasting parameter stably, thereby more help the production explosive applications
For achieving the above object, the present invention proposes a kind of blasting of rock subregion, promptly in whole mining scope, producing the zone of quick-fried district or a plurality of continuous quick-fried district of production forming with one is object, the explosion of rock mass is divided into four area classifications: difficult quick-fried district, more difficult quick-fried district, explosive district and very easily quick-fried district.
At above-mentioned blasting of rock subregion, the present invention proposes a kind of blasting of rock partition method, promptly producing quick-fried district with one is the unit, in whole mining scope, rock mass is carried out sample investigation, in each samples quick-fried district, measure following six subregion index: (1) rock dynamic compression strength, (2) rock dynamic modulus of elasticity, (3) crack length in the unit are, (4) fracture spacing in the unit are, (5) boulder yield, (6) average lumpiness.The critical value of above-mentioned six indexs of four area classifications in the mine of determining according to grey decision-making theory with by experience of study is obtained Power Function, standard power and the reality of above-mentioned six indexs and is weighed, the subregion vector of being made up of reality power is determined the explosion area classification in each quick-fried district of sampling, the advantage category regions of drawing a circle to approve the blasting of rock subregion in the whole mining scope according to the position and the area classification in each quick-fried district of sampling on composite plane then again.Based on the conventional blasting parameter of producing in mine, determine the reasonable blasting parameter in each zone according to the subregion result with test method(s), design and construct by the reasonable blasting parameter of recommending in the production explosion afterwards.The critical value of six indexs of above-mentioned four area classifications is that geological structure, rock strength and the breakage properties according to the mine set several class values earlier, and the result according to the tracking test of production explosion determines best critical value again.
Compared with prior art, the present invention is because the zone of forming with the quick-fried district of actual production is an object, taking all factors into consideration the lumpiness of rock dynamic load characteristic, geological structure of rock mass and rock blasting forms, and adopt advanced gray mathematics model to carry out data and handle, broken through the notion of traditional rock mass classification, blasting parameter is selected for once in a zone, and especially in the mine of multiple rock symbiosis, the present invention is more apparent superior.Facts have proved that adopt the explosion subregion can improve blasting efficiency more than 20%, the foundation boulder yield can reduce more than 10%, the economic benefit highly significant.
Claims (2)
1, a kind of blasting of rock subregion, it is characterized in that: in whole mining scope, producing the zone of quick-fried district or a plurality of continuous quick-fried district of production forming with one is object, and the explosion of rock mass is divided into four area classifications, promptly difficult quick-fried district, more difficult quick-fried district, explosive district and very easily quick-fried district.
2, a kind of blasting of rock partition method, it is characterized in that: producing quick-fried district with one is the unit, in whole mining scope, rock mass is carried out sample investigation, in sampling quick-fried district, each measures following six subregion index: (1) rock mass dynamic compression strength, (2) rock dynamic modulus of elasticity, (3) crack length in the unit are, (4) fracture spacing in the unit are, (5) boulder yield, (6) average lumpiness, the critical value of above-mentioned six indexs of four area classifications in the mine of determining according to grey decision-making theory with by experience of studying is obtained the Power Function of above-mentioned six indexs, standard power and actual power, the subregion vector of being made up of reality power is determined the explosion area classification in each quick-fried district of sampling, the advantage category regions of drawing a circle to approve the blasting of rock subregion in the whole mining scope according to the position and the area classification in each quick-fried district of sampling on composite plane then again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107851 CN1060353A (en) | 1990-09-28 | 1990-09-28 | Blasting of rock subregion and partition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107851 CN1060353A (en) | 1990-09-28 | 1990-09-28 | Blasting of rock subregion and partition method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1060353A true CN1060353A (en) | 1992-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90107851 Pending CN1060353A (en) | 1990-09-28 | 1990-09-28 | Blasting of rock subregion and partition method |
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| CN (1) | CN1060353A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406983A (en) * | 2014-12-09 | 2015-03-11 | 鞍钢集团矿业公司 | System evaluation method for block distribution after ore blasting |
| CN108086981A (en) * | 2017-12-01 | 2018-05-29 | 中国水利水电第十工程局有限公司 | With the construction method of more than the 100m high slopes of national highway zero distance |
| CN108761029A (en) * | 2018-03-20 | 2018-11-06 | 淮阴工学院 | A kind of method of tunnel Squeezing ground carbonaceous phyllite deformation classification |
| CN112556522A (en) * | 2019-09-26 | 2021-03-26 | 中国非金属材料南京矿山工程有限公司 | Blasting dust-settling delay detonation method |
| CN113932667A (en) * | 2021-09-30 | 2022-01-14 | 宏大爆破工程集团有限责任公司 | Method for partitioning sandstone aggregate mine rock mass according to lumpiness requirement |
| CN114018111A (en) * | 2021-09-30 | 2022-02-08 | 宏大爆破工程集团有限责任公司 | Blasting mining method for sandstone aggregate mine rock mass |
| CN115479512A (en) * | 2022-09-20 | 2022-12-16 | 中煤科工集团沈阳研究院有限公司 | Intelligent drilling and blasting pile block rate optimization method for strip mine |
-
1990
- 1990-09-28 CN CN 90107851 patent/CN1060353A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406983A (en) * | 2014-12-09 | 2015-03-11 | 鞍钢集团矿业公司 | System evaluation method for block distribution after ore blasting |
| CN108086981A (en) * | 2017-12-01 | 2018-05-29 | 中国水利水电第十工程局有限公司 | With the construction method of more than the 100m high slopes of national highway zero distance |
| CN108086981B (en) * | 2017-12-01 | 2019-12-17 | 中国水利水电第十一工程局有限公司 | construction method of high slope with zero distance to national road and more than 100m |
| CN108761029A (en) * | 2018-03-20 | 2018-11-06 | 淮阴工学院 | A kind of method of tunnel Squeezing ground carbonaceous phyllite deformation classification |
| CN112556522A (en) * | 2019-09-26 | 2021-03-26 | 中国非金属材料南京矿山工程有限公司 | Blasting dust-settling delay detonation method |
| CN112556522B (en) * | 2019-09-26 | 2022-05-17 | 中国非金属材料南京矿山工程有限公司 | Blasting dust-settling delay detonation method |
| CN113932667A (en) * | 2021-09-30 | 2022-01-14 | 宏大爆破工程集团有限责任公司 | Method for partitioning sandstone aggregate mine rock mass according to lumpiness requirement |
| CN114018111A (en) * | 2021-09-30 | 2022-02-08 | 宏大爆破工程集团有限责任公司 | Blasting mining method for sandstone aggregate mine rock mass |
| CN115479512A (en) * | 2022-09-20 | 2022-12-16 | 中煤科工集团沈阳研究院有限公司 | Intelligent drilling and blasting pile block rate optimization method for strip mine |
| CN115479512B (en) * | 2022-09-20 | 2023-08-22 | 中煤科工集团沈阳研究院有限公司 | Intelligent drilling and blasting pile large block rate optimization method for strip mine |
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