http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112556783-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f7dc2c1f194175c38327f0d482b1f91b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E02D29-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F23-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E02D29-12 |
| filingDate | 2020-12-11^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ef24ad2af7e4e5482118e1e357b6f01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8afe1bd6f6d2cd5c9e82097d59672f90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f967266e45364b4948ac9754c35ceab |
| publicationDate | 2021-03-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112556783-A |
| titleOfInvention | Static pressure type underground water level layered measurement observation well device and measurement method |
| abstract | The invention relates to a static pressure type underground water level layered measurement observation well device and a measurement method, wherein the observation well device is formed into a hollow structure by sequentially assembling a conical head, a first water filtering pipe, a first single-layer reducing joint, a first watertight pipe, a double-layer watertight reducing joint, a second water filtering pipe, a second single-layer reducing joint, a second watertight pipe and an inner pipe; the first water filter pipe and the second water filter pipe respectively comprise a water permeable pipe and a filter screen; and the threaded hole of each reducing joint is provided with a sealing ring. The invention buries underground water level observation holes through static penetration equipment, solves the problem of water permeability by using a small-caliber water filter pipe at a aquifer by utilizing a reducing design, solves the problem of water stop outside the pipe by using a large-caliber water-tight pipe at a water-tight layer, solves the problems of penetration and bottom sealing by adopting a solid conical head at the hole bottom, and can realize the purpose of layered measurement by inserting the pipe into the pipe by utilizing a reducing joint. The invention has the advantages of simple principle, one-step pore forming, good water stopping effect, high construction speed and low cost. |
| priorityDate | 2020-12-11^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID962 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419512635 |
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