http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114991776-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be2c55a9de09e08e3404c0a5a1ae4dc7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78d2e78945deea9453b1dc50b2dfb356 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12R2001-01 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21D9-001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N1-20 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12R1-01 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21D9-00 |
| filingDate | 2022-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be90234b60296d4376b8aaea35066d20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3e49221a9b9f63b84694eeac2c0be13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c191b02e0610428d9b25b14f3b5e06b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_958a77d977223c6fbc10baaa92edd40e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e15cd88d7aa9355872736aae57066799 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c2afb797ad06d81516cbfd41b1a0b4c |
| publicationDate | 2022-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114991776-A |
| titleOfInvention | Method and microbial slurry for strengthening the surrounding stratum of shield tunnel by microbial grouting in silty sandy soil stratum |
| abstract | The invention discloses a method and a microbial slurry for strengthening the surrounding strata of a shield tunnel by microbial grouting in a silty sandy soil layer. , a fixative, the mixed solution is a mixture of calcium acetate solution and urea solution according to a ratio of 0.8 to 1.2; the bacterial strain is Bacillus pasteurii; the fixative is a calcium chloride solution. The liquid and mixed liquid after mixing the microbial bacterial liquid and the fixative are used in the order of deep hole grouting, and the mixed liquid is penetrated into the soil layer around the tunnel through the overflow hole of the steel flower pipe by using a grouting pump. Under the reinforcement of microorganisms, the compressive strength, shear strength and liquefaction resistance of the silt and sand around the tunnel are significantly improved. For example, after 3 days of reinforcement, a core-pulling sampling is carried out. Most of the soil pores after reinforcement have been filled with calcium carbonate, and the soil strength is greatly improved. |
| priorityDate | 2022-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.