http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106703880-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21F16-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21F16-00 |
| filingDate | 2016-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106703880-B |
| titleOfInvention | The unrestrained through type water conservancy diversion spilled water hole of mining high-order absciss layer water and its construction method |
| abstract | The invention discloses the unrestrained through type water conservancy diversion spilled water hole of mining high-order absciss layer water and its construction method, it is first determined spilled water hole installation position, it is then determined that aperture.First paragraph aperture is first crept into during drilling construction, tripping in first order sleeve pipe, carry out cement mortar isolation closing, second segment drilling construction is carried out after qualified, second segment drillable length reaches caving zone top interface, judges open-work opportunity by observing aperture air draught situation during working face mining, continues unrestrained high-order separated strata seeper, after working face extraction, whole sealing of holes are carried out to Luo He groups bottom and following hole section using cement mortar.The present invention sets open-hole and the method for carrying out periodicity open-work according to drilling air draught situation using in Luo He groups full section, the length run at the unrestrained absciss layer water drilling hole of underground construction is overcome to be beaten and the easily destroyed problem of hole body structure away from uphole hardly possible, it can ensure that hole structure is steady in a long-term, ensure to let out under absciss layer water continuous uniform. |
| priorityDate | 2016-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.