http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1420170-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e71f3be282bb359afacbcf593aed2b0d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21D13-02 |
| filingDate | 1986-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2372984eb640693b43918563a6b3caa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f580f20031af8e1923ff17bbe33e78d3 |
| publicationDate | 1988-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1420170-A1 |
| titleOfInvention | Mine working protection method |
| abstract | The invention relates to mining, in particular to the development of coal deposits and the protection of reservoir development workings from large deformations. The purpose of the invention is to increase the service life of generation by reducing the stresses from the reference pressure around the circuit. working out. It is produced ahead of the cleaning operation. To do this, in the lower part of the working area, a slit 2 is conducted parallel to the formation. hj 0.01 (0.214JH / Rj ,; - 4) -1, where i 1.2 is the index of the roof and soil, respectively; h; - the height of the gap at the top and bottom, respectively, m, the tensile strength for uniaxial compression of the roof rocks and soil, respectively, MPa; y is the bulk mass of rocks, H is the depth of laying the excavation, m, 1 is the half-span of excavation, m. 3 Il. W from 4: iik Yu |
| priorityDate | 1986-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.