Ụzọ TRD nke Ịkpọ mmiri na Ịgbaji

Trench Cutting Re-mixing (TRD) bụ usoro owuwu mgbidi miri emi na-eme na saịtị nke na-emepụta mgbidi ndị na-akwado ibu site na ịkpụ na re-mixing ala na binder nke dabere na cement na usoro excavation na-aga n'ihu. E mepụtara ya na Japan, teknụzụ TRD na-anọchite anya mmepe na ezinụlọ teknụzụ ngwakọta ala, na-anọchite anya ọnọdụ pụrụ iche n'etiti usoro Cutter Soil Mixing (CSM) na owuwu mgbidi diaphragm na-emegharị. Usoro a na-eme ka mgbidi dị otu, nke nwere ikike, site na iji ịkpụ na nke ọma na ngwakọta nke ala nke obodo na slurry cementitious, na-emepụta ihe mgbochi monolithic nwere njikwa ike na njirimara permeability. Ngwa nke TRD gụnyere owuwu curtain cutoff na mmezi ala na-emebi, mgbidi diaphragm maka nkwado basement na excavation miri emi, usoro njikwa seepage na owuwu dam, na mgbidi perimeter ndị na-akwado ibu maka ụlọ ndị dị n'okpuru ala. Teknụzụ TRD bụ nke kachasị mma ebe nsogbu ohere na-eme ka itinye usoro sheet pile ma ọ bụ soldier pile na-adịkarị, ebe ọnọdụ ala na-enye nsogbu maka akụrụngwa grabbing mgbidi diaphragm, ma ọ bụ ebe ihe achọrọ injinia na-achọ mgbidi na-enweghị seam, na-enweghị ihe ize ndụ nke joint. Usoro a na-arụkwa ọrụ na mpaghara ala dị nro, ụdị nkume na-adịghị ike, na geologies jikọrọ na ebe usoro excavation ọdịnala na-egosi na ọ na-adịghị arụ ọrụ nke ọma ma ọ bụ na-emepụta vibration na ụda dị ukwuu. Usoro TRD na-arụ ọrụ site na igwe trenching pụrụ iche nke nwere wheels ma ọ bụ drums na-agba ọsọ nke na-ewepụ na re-mix ala na ịdị elu. Ka isi ịkpụ na-aga n'ihu n'ogo kwụ ọtọ ma ọ bụ na ntụziaka a na-atụ aro, slurry cementitious na-abanye ozugbo na ụlọ ịkpụ ma na-ejikọta ya na ihe a na-ekewapụ, na-emepụta ihe na-eme ka ọ bụrụ plastic nke a na-etinye na trench n'azụ isi ịkpụ. Ịkpa nke cuts panel na-emepụta mgbidi monolithic na-aga n'ihu. Ihu ọma, obosara ịkpụ, na ike ngwakọta na-achịkwa site na usoro hydraulic, na-enye ndị na-arụ ọrụ ohere iji hazie nkọwa mgbidi na ihe ndị a chọrọ. Nlekọta oge niile nke slurry volume, nrụgide injection, na mgbochi ịkpụ na-enye nkwado àgwà n'oge itinye. Akụrụngwa na TRD gụnyere igwe mmepụta zuru ezu nke etinyere na cranes dị arọ ma ọ bụ carriers crawler, nke a na-emezigharịrị maka panels na-adịkarị site na 0.8 ruo 3.0 mita n'obosara na nwere ike iru ịdị elu site na 20 ruo karịa 100 mita dabere na ọnọdụ ala na nkọwa igwe. Nhazi gụnyere isi ịkpụ otu na isi ịkpụ ọtụtụ, na-enwe ọsọ ntụgharị na amplitudes oscillation dị iche iche iji kwado ụdị ala dị iche. Akụrụngwa metụtara gụnyere ụlọ ọgwụ slurry, centrifuges maka njikwa slurry, usoro ntinye casing na mgbidi ndu, na ngwaọrụ nlekọta àgwà. Nhọrọ nke TRD gụnyere mkpa nke ịdị elu ọrụ, nkọwa mgbidi na izi ezi, profaịlụ ala na ebumnuche ike, mkpa permeability na durability nke mgbidi, ohere site na saịtị na mgbochi, iwepụ nke ihe a na-ekewapụ, na mmefu ego maka ma itinye akụrụngwa na logistics ọrụ. Ndị na-arụ ọrụ na-enyocha ịdịte aka nke ngwá ọrụ ịkpụ, ọnụego slurry, oge usoro, na ihe achọrọ ịmezu gburugburu ebe obibi. Ụkpụrụ ndị metụtara gụnyere ISO 21010 (Mgbidi diaphragm) na koodu imewe geotechnical mpaghara na-achịkwa imewe mgbidi TRD, nkọwa ihe, na àgwà arụ ọrụ, ebe DIN 4126 na EN 1537 na-enye nduzi banyere nkwado oge na nke permanent na-ejikọta mgbidi TRD.