Ngwaọrụ Ịnyịnya HD na-ebu Hydromill

Ụgbọ mmiri hydromill nke crane na-eburu bụ akụkụ pụrụ iche nke usoro hydromill, nke a na-emezigharị maka ngwakọta ala na simenti na mmezi ala n’ime owuwu mgbidi diaphragm, mkpuchi mkpuchi, na ihe mgbochi secant pile. A na-ejide ụdị ndị a site na cranes na-arụ ọrụ siri ike ma ọ bụ usoro piling, na-enye ohere maka ịbanye n'ogo na mmezi ala n'akụkụ site na ngwakọta jet hydraulic. N'okwu nke injinia ntọala miri emi na njikwa mmiri ala, hydromills na-arụ ọrụ dị mkpa iji mepụta mpaghara ala na-enweghị mmiri ma ọ bụ na-akwado ibu site na ijikọ jets mmiri dị elu na ịtụgharị auger iji homogenize ala na ihe njikọ n'ime ogige ngwakọta nke a na-achịkwa. Usoro ọrụ nke hydromills nke crane na-eburu gụnyere nhazi jet mmiri nwere ọtụtụ nozzle nke na-emebi ala na-enweghị ihe ọ bụla site na eroding hydraulic mgbe ọ na-etinye ihe njikọ simenti ma ọ bụ kemịkal. Ka hydromill na-agba ọsọ n'akụkụ n'ime oghere a na-emegharị ma ọ bụ casings, auger na-agba ọsọ na-ebufe ihe ngwakọta na elu. Usoro a na-eji nrụgide dị iche iche na-achịkwa—na-adịkarị site na 400 ruo 600 bar—iji nweta fluidization ala zuru oke na homogenization. A na-enweta ịbanye n'ogo site na usoro ịkụ crane, na-enye ohere maka njikwa omimi ziri ezi dị mkpa iji mepụta mkpuchi na-enweghị mmiri ma ọ bụ matrices na-akwado ibu. Iji tinye jets mmiri na slurry njikọ n'otu oge na-eme ka mgbasa ozi dị mma ma wepụ nsogbu nke ịkpa nkịtị nke a na-ahụkarị na usoro ngwakọta ala miri emi ọdịnala. Usoro hydromill nke crane na-eburu na-eji na ọtụtụ ọnọdụ ntọala miri emi: owuwu mgbidi diaphragm ebe ha na-emepụta mgbidi na-enweghị mmiri maka excavations n'okpuru mmiri, itinye mkpuchi mkpuchi na ndozi saịtị na-emebi na igbochi landfill, ihe mgbochi secant pile maka ihe nchekwa, na njikọta ala miri emi maka nkwado ntọala. N'iji jetgrouting na hydromilling, ndị na-arụ ọrụ na-enweta mmezi ala ozugbo na njikwa permeability ogologo oge. Nhazi akụrụngwa n'ime ụdị a na-agbanwe nke ukwuu dabere na omimi ọrụ (na-adịkarị site na 8 ruo 40 mita), ọnọdụ ala (nke na-ejikọta na granular matrices), na nkọwa arụmọrụ a tụrụ anya. Ihe ndị bụ isi gụnyere diameter nozzle (4 ruo 10 mm), akara nrụgide mmiri (400–700 bar), diameter auger (600–1200 mm), na ọnụego nnyefe slurry (50–300 liters/nkeji). Diameter ogige ngwakọta na njikọta na-ejikọta kpọmkwem na nkọwa akụrụngwa na ikike ibu crane (60–180 tonnes bụ ihe a na-ahụkarị maka ndị na-eburu ibu siri ike). Kriterị ịhọrọ usoro hydromill nke crane na-eburu gụnyere nyocha stratigraphy ala, ihe ndị a chọrọ maka ike ikpeazụ (na-adịkarị UCS: 2–15 MPa), nkwado ụdị njikọ, ihe mgbochi ịnweta akụrụngwa, na echiche gburugburu ebe obibi gụnyere àgwà mmiri ala na oke vibration. Njikọ omimi na diameter na ugboro oscillation n'akụkụ ga-eme ka ha kwekọọ na njikọ ala na ọnọdụ mmiri ala iji hụ na ngwakọta zuru oke na-enweghị ịda oghere ma ọ bụ ọnwụ slurry. Ụkpụrụ ndị metụtara na-achịkwa ọrụ hydromill gụnyere EN 1538 (Mgbidi Diaphragm), EN 14199 (Itinye Micropile), na DIN 4128 (Jet Grouting na Germany). ISO 14686 na-enye nduzi njikwa àgwà maka teknụzụ ngwakọta miri emi. Ikwesịrị imezu iwu mmiri ala mpaghara na nkọwa geotechnical nke ndị ọchịchị na-enye tupu nkọwa na itinye.