http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103527200-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21C41-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21F15-00 |
| filingDate | 2013-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103527200-B |
| titleOfInvention | Bottom-column-free sectional Rhombic room afterwards filling mining method |
| abstract | The present invention relates to mining technique field, a bottom-column-free sectional Rhombic room afterwards filling mining method specifically, is applicable to ore body developmental joint fissure, quasi-lamellar structure, ore body horizontal breadth is 20-25m, and inclination angle is gentle dip, tilted metallic and the nonmetal ore body of 35-40 °.At present, the exploitation of complex environment gentle dip, inclined orebody also exists efficiency, safety, cost, contradiction between dilution and loss.Be installed with wide 8-12m studding between nugget of the present invention, ensure have ore pillar to support between mineral building; Back production unit is rhombus block, and after back production, dead zone top plate shape approximation arch shape, make use of the feature that arched tunnel force structure is good; Utilize the ore removal structure of sublevel caving method without sill pillar, achieve sublevel open stoping mining, afterwards filling dead zone, the mining high efficiency of existing Caving Method with Large Space, has again the safety of filling method.Mining environment safety, goaf utilizes filling method process, improves ore recovery rate, reduces ore dilution rate. |
| priorityDate | 2013-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 15.