Ngwaọrụ grouting bụ akụkụ dị mkpa nke ngwá ọrụ injinia ntọala omimi, na-enye ntinye achịkwa nke ihe ndị cementitious na ndị na-abụghị cementitious iji kwụsị, mechie, ma melite ihe owuwu n'okpuru ala. N'ime ngwa mgbidi ala na mkpuchi mkpuchi, usoro ndị a na-eme ka mmiri ala na-abanye, na-emezi njirimara ala-nkume, na-emepụta mgbidi na-adịghị agwụ agwụ na mgbidi diaphragm, piles secant, piles tangent, na ọrụ ngwakọta ala. Nchekwa na njikwa nrụgide nke nnyefe grouting na-emetụta kpọmkwem ịdị mma nke ihe owuwu na ịdịgide ogologo oge nke ọrụ ntọala omimi. Ntinye ngwa grouting na-agafe ọtụtụ usoro n'ala ntọala omimi. N'ịrụ mgbidi diaphragm, usoro grouting na-akwado ọrụ tremie na nkwado àgwà n'oge ntinye panel. Ngwa mkpuchi mkpuchi na-eji usoro ntinye nke etiti iji dozie ụzọ mmiri na-abanye na ọgwụgwọ nke mpaghara dị nro. Usoro piles secant na tangent na-adabere na nnyefe grouting pụrụ iche iji hụ na njikọ pile na-aga n'ihu. Ọrụ jet grouting na-adabere na ngwaọrụ nrụgide dị elu na-enweta okpuru ntinye nke na-agafe 60 mita na ọgwụgwọ ala mpaghara. Usoro ngwakọta ala na usoro stabilization in-situ na-achọkwa ngwa grouting ziri ezi maka stabilization kwụsie ike n'ala a họpụtara. Ụkpụrụ ọrụ na-elekwasị anya na nnyefe nrụgide nke grouting nke a na-atụgharị iji nweta ntinye achịkwa n'ime ala na nkume. Usoro ndị a na-emepụta na-enye njikwa onwe onye nke ọnụego mmiri, monitoring nrụgide na-aga n'ihu, na usoro ntinye nke a haziri. Pumps peristaltic, pumps displacement dị mma, na nhazi centrifugal nrụgide dị elu na-eje ozi dị iche iche chọrọ ọrụ dabere na ikike nnyefe, tolerance viscosity, na oke nrụgide. Meters mmiri na transducers nrụgide na-enye njikwa àgwà n'oge a na-eme, ebe mixers piston ma ọ bụ paddle akpaaka na-enyere aka na njikọ kwụsie ike nke ihe ndị cementitious, aggregates, na ihe ndị ọzọ. Usoro nnyefe—pipes tremie, tubes ntinye, na nozzles pụrụ iche—na-eziga grouting na mpaghara ọgwụgwọ mgbe na-ebelata segregation na na-maintaining homogeneity. Nhazi ngwa na-agafe site na ngwá ọrụ ngwakọta na ntinye nke nwere ike ịrụ ọrụ n'otu ebe ruo na ụlọ ọrụ grouting jikọtara na-eje ozi na nnukwu ọrụ ụlọ ọrụ. Ụlọ ọrụ multi-stage nwere ikike nchekwa na-agafe 50 cubic mita, usoro ọkụ maka ngwa dabere na okpomọkụ, na ọtụtụ ebe pump na-enye ohere maka ntinye n'otu oge ma ọ bụ n'usoro. Nhazi pụrụ iche gụnyere usoro jet grouting nwere diamita nozzle nke 1–3 millimeters na nrụgide na-agafe 600 bar, tinyere usoro viscosity dị elu maka ngwa na-achọkarị ntinye dị ntakịrị. Nhọrọ nke ihe ndị chọrọ gụnyere ọnụego nnyefe chọrọ, nrụgide kachasị arụ ọrụ, viscosity grouting, tolerance okpomọkụ gburugburu, na nkwado na compositions grouting akọwapụtara gụnyere microfine cement, sodium silicate systems, na formulations dabere na resin. Njikọ ihe na nkọwa ọrụ na njikọ nke ngwa na-ejikọta na ntinye rig bụ ihe ndị ọzọ dị mkpa. Ụkpụrụ na-achịkwa ngwa grouting na omume gụnyere EN 1538 (Mgbidi diaphragm), EN 14199 (Micropiles), EN 12716 (Grouting nke Nkume), na API 65 (Ọrụ Cementing), nke na-achịkọta ụkpụrụ arụmọrụ, usoro nkwado àgwà, na usoro nkwado nke dị mkpa maka omume ọkachamara.
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