Ngwaọrụ ndị na-enyere aka na-anọchite anya ụdị dị iche iche nke akụrụngwa nkwado, ngwaọrụ pụrụ iche, na usoro nkwado dị mkpa maka arụ ọrụ nke ọma nke multi-shaft drilling rigs na akụrụngwa nrụpụta mgbidi ala. Ngwaọrụ ndị a na-enyere aka na-eme ka akụrụngwa ịkụ na excavation na-enweta ịdị mma, arụmọrụ, na ụkpụrụ àgwà a chọrọ na injinia mgbidi omimi nke oge a. Ọ bụ ezie na ihe ndị na-enyere aka nwere ike ịdị ka nke abụọ na ngwugwu ịkụ, arụmọrụ ha n'ozuzu na-achịkwa feasibility ọrụ, oge cycles, na ịdị mma nke mgbidi ndị a rụpụtara. Na ngwa ọrụ multi-shaft drilling—karịsịa maka mgbidi diaphragm, curtain cutoff, mgbidi secant pile, na ọrụ jet grouting—ngwaọrụ ndị na-enyere aka na-arụ ọrụ dị mkpa n'oge usoro owuwu. Casing oscillators na-ewepụ casing ndị na-eduga mgbe a kụrụ trench, ebe guide frames na-edobe tolerances kwụ ọtọ n'ime ±1% dịka EN 1538. Usoro mgbasa mmiri slurry na-eme ka bentonite ma ọ bụ polymer fluids na-akwado, na-achịkwa viscosity, density, na ọnụego filtration dịka ọnọdụ ala si dị. Tremie discharge tubes na-ebufe concrete n'okpuru slurry mgbe ha na-egbochi ịkekọrịta, na pipe handlers na-eme ka casing na nkwado nke oge dị n'ogo karịrị 40 mita. Usoro ọrụ nke ọtụtụ ngwa na-enyere aka bụ nkwado nke usoro ịkụ. Bucket teeth na auger blades na-eku ala na nkume; akụrụngwa wepụ na-ewepụ casing n'okpuru nrụgide hydraulic a na-achịkwa iji gbochie subsidence; slurry conditioning units na-edobe njirimara mmiri na-esiri ike site na centrifuges, shale shakers, na weir tanks; tremie systems na-eji njikwa nrụgide azụ iji nweta nkwado concrete n'ozuzu. Ngwaọrụ nyocha—gụnyere inclinometers, pressure transducers, na usoro nduzi laser—na-enye nlele usoro n'oge a na-arụ ọrụ, na-eme ka ndị na-arụ ọrụ nwee ike ịchọpụta mgbanwe tupu mmejọ nhazi emee. Ngwaọrụ dị na ụdị a gụnyere teknụzụ mechanical, hydraulic, na eletrọnịk. Ngwaọrụ mechanical na-enyere aka gụnyere ndị na-ewepụ casing manual ma ọ bụ hydraulic nke na-arụ ọrụ na ibu site na 50 ruo 300+ tonnes, guide frames na-agbanwe maka thickness mgbidi ala dị iche iche, na ụdị tremie pipe dị iche iche. Usoro hydraulic na-enye ike na winches, oscillation units, na cranes na-ahụ maka pipe na njikwa valve proportional maka arụmọrụ dị mma n'ókè dị nso na ihe ndị dị n'ọrụ. Ngwaọrụ eletrọnịk na-enyere aka gụnyere units na-agụ inclination, sensors slurry density, indicators nke ọkwa concrete, na usoro alarm akpaaka nke na-eme ka ndị na-arụ ọrụ mara banyere mgbanwe paramita. Nhọrọ nke akụrụngwa ndị na-enyere aka na-adabere na ihe ndị chọrọ na ọrụ. Omimi mgbidi na composition ala na-achịkwa ihe ndị a chọrọ maka ike wepụ na nkọwa slurry rheology. Ọnọdụ mmiri ala na-emetụta ụdị mmiri na ikike mgbasa. Mmobility akụrụngwa na ihe mgbochi ịnweta saịtị na-emetụta nhọrọ gbasara nhazi mounting—usoro mast kwụ ọtọ na akụrụngwa na-akwado crane. Nkwado iwu na ụkpụrụ mba dịka EN 1538 (mgbidi diaphragm), EN 14199 (micropiles), ma ọ bụ EN 1997 (nhazi geotechnical) na-emepụta nkọwa arụmọrụ kacha nta. Ihe ndị na-emetụta akụ na ụba na-ejikọta itinye ego mbụ na arụmọrụ na-arụ ọrụ na ịbelata mmefu. Ndị na-ahụ maka ụlọ ọrụ na-achịkwa nhọrọ na ọrụ nke akụrụngwa ndị na-enyere aka gụnyere EN 1538 maka nrụpụta mgbidi diaphragm (nkọwa slurry, tolerances casing), DIN 4126 (nrụpụta mgbidi sheet), API RP 2A (ndị na-achọ mgbidi offshore nke na-achọ ka ọ bụrụ na e nwere ọtụtụ redundancy), na ISO 6892-1 (nnyocha ihe maka akụrụngwa ịkụ). European Technical Approval (ETA) akwụkwọ na-enye nkwado arụmọrụ maka usoro akụrụngwa ọhụrụ. Ngwaọrụ ndị na-enyere aka na-anọchite anya ụzọ dị n'etiti nhazi echiche na eziokwu saịtị—nkọwa na arụ ọrụ ha kwesịrị ekwesị na-achịkwa ma ọrụ mgbidi omimi rụọ ọrụ nke ọma n'ime oge na mmefu a na-atụ anya.
Excavators na-anọchi anya otu n'ime ụdị akụrụngwa na-emegharị ala dị mkpa na injinia ntọala miri emi, na-arụ ọrụ dị ka igwe mbụ maka nkwadebe saịtị, njikwa ihe, na ọrụ ịkpụzi ndị ọzọ na-akwado ntinye mgbidi ala na mkpuchi. Ọ bụ ezie na mgbidi diaphragm, mkpuchi, mgbidi secant, na mgbidi akwụkwọ na-adabere na akụrụngwa drilling na injection pụrụ iche, excavators na-eme ka ntọala nke ọrụ ndị a site na ịrụ ọrụ ala nke na-enye ohere maka owuwu mgbidi ziri ezi. Na ngwa ntọala miri emi, excavators na-arụ ọrụ maka ọrụ dị iche iche n'ọrụ mgbidi diaphragm na mkpuchi. Ha na-eme ka saịtị dị ọcha ma na-eme ka ọ dị elu, na-ewepụ ihe ndị na-ebu ibu na ala dị nro, na-eme ka mgbidi ndu na pits ọrụ, na-achịkwa logistics nke bentonite slurry, na-emepụta na ịchekwa ihe ndị a na-ewepụ, na-achịkwa mmegharị ihe n'ogbe ọrụ obodo jupụtara. Maka ọrụ jet grouting na ngwakọta ala, excavators na-eme ka akụrụngwa dị, na-achịkwa akpa ihe, na-achịkwa iwepụ na ịmegharị ihe ndị a na-emetụta. Na ngwa mgbidi secant na tangent, ha na-eme ka ebe nnweta dị ọcha na-achịkwa ihe ndị a na-emepụta n'oge iwepụ augered. Usoro ọrụ nke excavators crawler na wheeled na ọnọdụ ndị a na-elekwasị anya na nnyefe ike hydraulic. Ụdị na-agba, nke a na-etinye na carriers na-agba ma ọ bụ rubber-tired, nwere pump hydraulic, valves njikwa, na ụlọ ọrụ onye na-arụ ọrụ. The boom, arm, na akpa na-arụ ọrụ na hydraulic, na-enye ohere maka ịkwado akpa na ịdị elu na ikike ibu na-agbanwe site na 0.5 ruo 5.0 cubic meters dabere na klaasị igwe. Ike ịkpụzi na-emepụta site na displacement pump bụ isi (na-emekarị 200–400 cc/rev) na-eme ka ike diesel ma ọ bụ eletrik, na-ebufe ya na cylinders hydraulic nwere nrụgide nke 280–350 bar. Na saịtị obodo jupụtara, excavators compact (13–25 tonnes na ibu ọrụ) nwere tail swing belatara na ikike ịgbanwe 360-degree ka a na-ahọrọ; saịtị mepere emepe na-anabata carriers nkịtị (30–60 tonnes) nwere booms ogologo na iru ka ukwuu. Nhazi akụrụngwa na ụdị a gụnyere usoro akpa na ogwe, akpa pụrụ iche nwere edges na-eme ka ọ dịrị mfe maka ala na-emepụta, grapples maka ịkekọrịta ihe, na akpa na-ejide ngwaọrụ na-eme ka ọ dịrị mfe. Excavators na-achịkwa slurry nwere nchebe nchebe iji jikwaa bentonite spillage na usoro mmiri na-agba n'ala. Nhazi pụrụ iche gụnyere akpa nwere ihuenyo jikọtara na ya maka ịkekọrịta ihe ndị a na-ewepụ. Nhọrọ nke ihe ndị a na-atụle maka nkwado excavator na ọrụ mgbidi ala gụnyere klaasị excavator (mini, midi, nkịtị), oke ibu ọrụ a na-etinye na ikike ikpo okwu, ihe akpa na-ejide nke dabara na ọnọdụ ala, arụmọrụ mmanụ na-adịgide adịgide na ọrụ ogologo, ụda na vibration na-achịkwa na gburugburu ebe obibi dị oke mkpa, na ihe ndị a chọrọ na-ejikọta na geometry pit. Ndị na-arụ ọrụ na-enyocha displacement pump hydraulic, ọnụego mgbasa, na akara nrụgide megide ihe resistance ala a tụrụ aro na ọnọdụ okpomọkụ gburugburu. Ụkpụrụ ụlọ ọrụ na-achịkwa arụmọrụ excavator na nchekwa gụnyere ISO 6016 (nkọwa ikike a tụrụ aro), ISO 12100 (nchekwa igwe), ISO 6165 (nchịkọta site na ibu na ike), na EN 12001 (ihe achọrọ nchekwa maka igwe na-emegharị ala). Iwu mpaghara na-achọ ka a kwadoro ya n'okpuru EU Machinery Directive 2006/42/EC. Ụkpụrụ ọrụ maka njikwa ihe ndị a na-ewepụ na-ezo aka na ISO 14644 (njikwa mmetọ n'oge mmegharị ihe) na ụkpụrụ gburugburu ebe obibi nke mba maka njikwa slurry.
Ngwaọrụ backhoe loaders bụ igwe na-arụ ọrụ hydraulic nke nwere ọtụtụ ọrụ, nke na-ejikọta akụrụngwa ịkụ azụ nke etiti na akụrụngwa ịkụ azụ nke azụ, na-arụ ọrụ dị mkpa na nrụpụta ntọala miri emi. Na injinia ntọala miri emi, backhoe loaders na-arụ ọrụ dị ka akụrụngwa nkwado bụ isi maka ịkwadebe saịtị, ijikwa ihe, ijikwa ihe efu, na ọrụ nkwadebe ala nke na-akwado ọrụ ntọala pụrụ iche. Njikọ ha na ịdị mfe na-eme ka ha bụrụ ihe dị mkpa maka saịtị nwere oke ohere ebe ndị na-ehichapụ na ndị na-ebu nwere ike ịbụ na ọ gaghị adị mfe ma ọ bụ na ọ gaghị abara uru akụ na ụba. Backhoe loaders na-eji na ngwa dị iche iche nke ntọala miri emi. Na nrụpụta mgbidi diaphragm, ha na-ehichapụ ma na-maintain pits, na-ahụ maka itinye cage na-eme ka ọ dịkwuo mma, na ijikwa bentonite slurry na ihe efu. Maka itinye mkpuchi mkpuchi—n'agbanyeghị ma ọ bụ soil-cement, sheet pile, ma ọ bụ cement-bentonite—ha na-akwadebe ikpo okwu ọrụ, na-ehichapụ trench ndu, na-ebu ihe cementitious na ihe mgbakwunye ala. Na nrụpụta secant na tangent pile, backhoe loaders na-akwado nkwadebe pit, ijikwa cage pile, na iwepụ ihe efu. Ha na-enyekwa aka na ọrụ jet grouting site na nkwadebe ebe ntinye, ijikwa nkwado ụlọ slurry, na ijikwa grout na volumu cement. Na arụmọrụ, backhoe loaders na-eji usoro hydraulic abụọ: usoro loader na-enye ọrụ bucket-parallel na bucket-curl maka nchịkọta ihe na loading na ụgbọ ala, ebe usoro excavator na-enye arm extension, arm curl, na bucket rotation maka ịkụ azụ na ịdị elu nke 3–6 mita n'okpuru ala igwe. Usoro nrụgide na-ewepụ na-echekwa nchekwa ọrụ, na igwe oge a nwere njikwa hydraulic nke na-enye ohere maka itinye ihe n'ụzọ ziri ezi na belata spill. Cab onye na-arụ ọrụ na-enye 360-degree visibility—nke dị mkpa maka ịrụ ọrụ n'akụkụ ihe nkwado ala na mgbidi diaphragm. Ndị dị na nhazi dị iche iche na-agbasa n'ogologo ịkụ azụ site na 4.5 ruo 6.5 mita, ikike bucket site na 0.15 ruo 1.0 m³, na ikike bucket loader site na 1.0 ruo 3.5 m³. Ọnụ ọgụgụ ọrụ na-agbasa site na 9 ruo 28 tonnes, na ụdị track-mounted na-enye ikike ibu dị elu na ala dị nro ma ọ bụ ala nwere clay ebe mmezi ala adịghị zuru ezu. Ngwaọrụ pụrụ iche gụnyere quick-couplers maka mgbanwe bucket, stabilizer legs maka nkesa ibu na ikike ibu na-erughị, extended dippers maka ịkụ azụ miri emi, na thumb attachments maka njikwa ihe. Nhọrọ nke atụmatụ gụnyere geometry nke ohere saịtị, ikike ala (ndị na-arụ ọrụ ntọala na-emekarị na-ekwu maka oke nrụgide), ihe achọrọ maka ịdị elu nke ịkụ, volumu ihe, na nso nso na ọrụ ma ọ bụ ihe owuwu dị adị. Ndị na-arụ ọrụ ga-enwerịrị ikike na ikike igwe dị arọ nke mpaghara; Germany na-achọ § 32a BauV competency, ebe saịtị UK na-achọ CSCS ma ọ bụ NVQ Level 2+ certification. Ndị metụtara ụkpụrụ gụnyere ISO 10567 (ichekwa nchekwa excavator hydraulic), ISO 6165 (nomenclature nke igwe na-emegharị ala), na mgbanwe mba dị ka DIN 20457 (ihe achọrọ nchekwa maka loaders na backhoes). EU Directive 2006/42/EC na-emetụta imewe igwe na CE marking. Na mgbakwunye, ụkpụrụ njikwa mmiri ala (BS 6031, DIN 4126) na-achịkwa omume dewatering ebe backhoes na-akwado ụlọ ọrụ ọgwụgwọ slurry ma ọ bụ ijikwa usoro dewatering.
Ụgbọ elu na-ebuli n'ime ihe gbasara mgbidi ala na mkpuchi mkpuchi bụ akụrụngwa na-ebuli pụrụ iche nke e mere iji jikwaa ihe ndị dị mgbagwoju anya na-achọsi ike nke metụtara ịrụ ọrụ nke ihe owuwu ala miri emi, gụnyere mgbidi diaphragm, mkpuchi mkpuchi, secant piles, usoro mgbidi sheet, na ọrụ jet grouting miri emi. Ụgbọ elu ndị a na-eje ozi dị ka akụrụngwa enyemaka dị mkpa nke na-enye ohere maka itinye, ịchịkwa, na ịkwado nnukwu ihe owuwu, ngwakọta nkwado, tubes tremie, na mgbidi ndu n'oge usoro mbụ dị mkpa nke ọrụ ntọala miri emi, ebe ịdị mma na nkwado ibu bụ isi na-edobe ịdị mma nke ihe owuwu na nkwado iwu. N'ịrụ mgbidi diaphragm, ụgbọ elu na-ebuli na-edobe ma na-ebelata ihe mgbidi ndu na nhazi kwụ ọtọ tupu ịmalite ịkụ trench jupụtara na slurry. N'oge nrụpụta na-aga n'ihu, ha na-asọpụrụ tubes tremie a na-eji maka itinye ihe, na-achịkwa mbata nke cages nkwado n'ime excavation na-akwado slurry, na jikwaa itinye nke panels diaphragm a na-emegharị. N'itinye mkpuchi mkpuchi—ma ọ bụ soil-cement-bentonite (SCB), cement-bentonite (CB), ma ọ bụ usoro vibro-replacement— ụgbọ elu na-ebuli na-ahụ maka itinye tubes nnweta, usoro ndu, na akụrụngwa. Maka usoro secant na tangent pile, ụgbọ elu na-ebuli na-edobe ma casing strings na-adịgide adịgide ma na usoro ndu na-adịgide adịgide. N'ọrụ jet grouting na ngwakọta ala, ụgbọ elu na-ebuli na-asọpụrụ nnukwu akpa ụlọ ọgwụ, hoses na-enye reagent, na nozzles ntinye pụrụ iche mgbe ha na-edebe ohere ọrụ n'elu ebe excavation na-aga n'ihu. Usoro ọrụ na-adabere na njikwa ụzọ ibu nchekwa: ụgbọ elu na-ebuli na-enye mmegharị kwụ ọtọ na nke lateral na njikwa ibu na-adịgide adịgide n'oge usoro ọrụ, na-ezere swinging na-adịghị njikwa, ibu na-emetụta, ma ọ bụ lateral drift nke nwere ike imebi mgbidi ndu, mebie njirimara nkwado slurry, ma ọ bụ mebie nhazi nke ngwaọrụ ọrụ. A ga-ekesa nrụgide ahịrị ibu site na ebe a na-enyocha asambodo na ihe ndị a na-ebuli, na ihe ndị na-emetụta na-atụle mmegharị ikpo okwu na mmetụta nke ịrị elu. Ụgbọ elu na-ebuli na mpaghara a na-ejikarị ụgbọ elu lattice boom na-agba ọsọ (20–100 t ikike), ụgbọ elu pedestal etinyere na saịtị ọrụ (ịrụ ọrụ na-adịgide adịgide), ma ọ bụ ụgbọ elu na-agba n'ala maka excavation n'akụkụ mmiri. Nhazi gụnyere lifts otu ahịrị (tubes tremie, mgbidi ndu), multi-point spreader bars nwere usoro nkwado ibu (cages nkwado buru ibu, panels mgbidi ndu), na akpa hook nwere cell ibu eletrọnịkị maka nlekota n'oge. Usoro ndị a na-emepe emepe na-ejikọta radar anti-collision, ihe ngosi nke ibu moment (LMI), na mgbakwunye boom nwere geometry mgbanwe maka ọrụ n'ime ebe na-adịghị mma n'elu trenches na-aga n'ihu. Ihe ndị a na-eji ịhọrọ gụnyere ikike ibuli achọrọ na radius kachasị, nkwado nke ikpo okwu n'okpuru ibu na-aga n'ihu, ịdị elu kwụ ọtọ n'ime ebe a na-achịkwa, mgbochi radius, ihe achọrọ maka ịtie, na asambodo n'okpuru EN 12951 (Ihe achọrọ nchekwa maka ụgbọ elu na-agba ọsọ), EN 13000 (Ụgbọ elu na-agba ọsọ—Nchekwa), na ISO 4305 (Ụgbọ elu—nkọwa). Ndị na-arụ ọrụ ga-enwe asambodo ụgbọ elu na-agba ọsọ a na-ahụ maka (IPAF, CCNR, ma ọ bụ nke yiri ya) na-egosi ikike na omume pụrụ iche na ntọala miri emi n'okpuru atụmatụ ibu a na-enyocha.
Trailers dị ala bụ ụgbọ njem arọ pụrụ iche e mere iji buo akụrụngwa buru ibu, na-adịghị mfe ibugharị na igwe na saịtị owuwu ntọala omimi. Dị ka akụkụ nke usoro akụrụngwa enyemaka, trailers dị ala na-arụ ọrụ dị ka ihe onwunwe logistics dị mkpa, na-eme ka mmegharị nke igwe na-agba, akụrụngwa mgbidi diaphragm, igwe na-agba, na akụrụngwa ndị ọzọ na-arọ na ntọala na-adịghị ike ibugharị site na ụgbọala azụmahịa nkịtị n'ihi ibu, nha, ma ọ bụ njikwa etiti. Na ọnọdụ nke owuwu mgbidi ala na nrụpụta curtain, trailers dị ala na-arụ ọrụ dị ka ụzọ mbụ maka ibufe igwe na-agba mgbidi, akụrụngwa hydrofraise, igwe jet grouting, na akụrụngwa ngwakọta ala na saịtị ọrụ, na-emekarị na-agba n'ala siri ike na ụzọ ịnweta na ibu dị arọ na-akarị 50–150 tonnes. Trailers dị ala na-eji na usoro niile nke mgbidi ala na nrụpụta curtain, gụnyere owuwu mgbidi diaphragm (na-akwado igwe na-agba multi-ton na akụrụngwa hydrofraise), nrụpụta mgbidi secant na tangent (na-ebufe igwe na-ebugharị na hammer), usoro mgbidi sheet pile (na-ebufe hammer impact na vibratory), ọrụ jet grouting (na-ebufe nnukwu pump units na chambers ngwakọta), na stabilizashọn ala n'ọnọdụ na ngwakọta (na-ebu akụrụngwa ọgwụ ala pụrụ iche). Usoro ọrụ na-elekwasị anya na nkesa ibu na njikwa ibu axle: trailers dị ala nwere ikpo okwu dị ala na-etinye n'ala, na-eme ka wheelbase na-agbasa n'elu ọtụtụ otu axle iji kesaa ibu akụrụngwa n'ime oke ibu axle iwu (na-adịkarị 8–11 tonnes kwa axle na ụkpụrụ EU). Ikpo okwu trailer na-adịkarị na-eme ka a na-emegharị site na cylinders hydraulic ma ọ bụ winches механики, na-enye ohere maka nhazi ziri ezi na nchekwa nke ibu. Trailers dị ala nke oge a na-ejikọta ramps nwere ike iwepụ, ebe nchekwa ibu, na usoro hydraulic jikọrọ ọnụ iji mee ka ọrụ ịwụnye, ịpụpụ, na stabilizashọn n'oge njem. Nhazi ndị bụ isi gụnyere trailers dị ala tandem axle (otu 2–3 axle maka ibu 60–100 tonne), tri-axle na trailers nwere ike ịgbasa (na-enye ohere ibu 80–150 tonne ma ọ bụ booms buru ibu), na ụdị drop-deck pụrụ iche nwere ikpo okwu nwere ike ịhazigharị maka ibu dị elu. Ụfọdụ ụdị nwere turntables na-agba ma ọ bụ nkwado ibu na-arụ ọrụ na hydraulic iji kwado akụrụngwa na-ebugharị na-adịghị mma ma ọ bụ buru ibu na akụkụ igwe na masts. Nhọrọ ihe ndị ọkachamara gụnyere ikike ibu a na-enyocha (ga-abawanye ibu akụrụngwa na-enweghị mmiri na 15–20% nchekwa), ogologo na obosara ikpo okwu na-adabara footprints akụrụngwa, nhazi axle dị maka nkwado iwu mpaghara, ụdị usoro nkwụnye (air springs maka nkasi obi; механики maka ịdịte aka), usoro njikwa traction na nkwụsi ike, na nkwado na usoro hydraulic na-achịkwa na-enweghị eriri maka njikwa ibu. Ụkpụrụ metụtara gụnyere EN 12642 (usoro nchekwa ibu), ISO 7573 (nka ibu taya), na iwu njem ụzọ mba (STGB, STVO, ma ọ bụ nke yiri ya) na-achịkwa ibu axle, ibu ngwakọta niile, na oke nha. Ndị na-arụ ọrụ ọkachamara na-enyocha availability trailer, logistics turnaround, akwụkwọ insurance na nkwado, na ịdị mma onye na-arụ ọrụ na usoro rigging na nhazi ibu dị mkpa maka nnyefe akụrụngwa dị mma, nke ọma na saịtị ntọala omimi dị mgbagwoju anya.
Kompresor udara berfungsi sebagai peralatan pendukung esensial dalam rekayasa fondasi dalam, menyediakan pasokan udara terkompresi yang andal untuk berbagai alat dan sistem pneumatik yang digunakan selama konstruksi dinding diaphragm, pemasangan curtain pemotongan, dan operasi perbaikan tanah terkait. Sebagai peralatan pendukung kritis, kompresor udara memungkinkan pelaksanaan peralatan pneumatik pada situs konstruksi yang terbatas di mana sumber daya lain mungkin tidak praktis, sambil menyediakan kapasitas udara terkompresi yang konsisten dan portabel yang independen dari batasan infrastruktur situs.
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