Ngenkathi i-Barbara Walker Crossing iqalwa okokuqala ngo-2012, umsebenzi wayo oyinhloko kwakuwukuphephisa abaqwali kanye nabagijimi ku-Portland's Wildwood Trail ubunzima bokugwema isiminyaminya emgwaqweni omatasa uWest Burnside.
Kube wubufakazi bezakhiwo eziqaphela ubuhle, izinsiza ezihlanganisayo nobuhle bomphakathi owazisa (nofuna) kokubili.
Ibhuloho liqedwe ngo-Okthoba 2019 futhi lavulwa ngayo leyo nyanga, ibhuloho liwumzila wabantu abahamba ngezinyawo ongamafidi angu-180 ubude ohlelelwe ukugoba futhi uklanyelwe ukuhlangana nehlathi elizungezile.
Yakhiwe ngaphandle kwendawo yinkampani engasekho yasePortland Supreme Steel, yahlukaniswa yaba izingxenye ezintathu ezinkulu, yabe isiyiswa endaweni.
Ukuhlangabezana nezidingo ezibonakalayo nezakhiwo kwakusho ukusebenzisa izinto ezingafinyelela zonke izinjongo zephrojekthi ezihluke kakhulu, ngokobuciko nangesakhiwo.Lokhu kusho ukusebenzisa amapayipi - kulesi simo 3.5″ kanye no-5″.corten (ASTM A847) amashubhu ensimbi esakhiwo adizayinelwe izakhiwo ezidinga amapayipi ashiselwe noma afakwe ibhawudi kuyavezwa okunye ukuxhuma okubalulekile okuluhlaza okokuxhunywa okhiye kuyavezwa. fanisa i-canopy yehlathi.
U-Ed Carpenter, umklami nomdwebi onguchwepheshe ekufakweni komphakathi okukhulu, uthe wayenemigomo eminingana engqondweni lapho ekhulelwa ibhuloho.Phakathi kwabo, ibhuloho kufanele lihlanganiswe nomongo wehlathi, okuwukuqhubeka komzwelo kanye nesipiliyoni somzila, futhi kufanele kube njengento ebucayi futhi esobala ngangokunokwenzeka.
“Ngenxa yokuthi omunye wemigomo yami ebaluleke kakhulu yokuklama kwakuwukwenza ibhuloho libe ntekenteke futhi libe sobala, ngangidinga izinto zokwakha ezisebenza kahle kakhulu kanye nesimiso sesakhiwo esisebenza kahle kakhulu ngangokunokwenzeka—ngakho-ke, izinsimbi ezinezintambo ezintathu,” kusho uCarpenter, ophinde abe ngumshisekeli wangaphandle. .Isebenza kumzila omkhulu wasePortland iminyaka engaphezu kwengu-40.”Ungayakha ngezinye izinto, kodwa amapayipi ensimbi noma amapayipi kuwukukhetha okunengqondo.
Ngokombono ongokoqobo wokwakha, ukufeza konke lokhu akulula. UStuart Finney, unjiniyela wesakhiwo ehhovisi lefemu yobunjiniyela yasePortland i-KPFF kanye nowayengumphathi wephrojekthi yebhuloho, uthe ukushisela ngempumelelo zonke izingxenye ezimpambanweni ze-TYK lapho wonke amapayipi asekelayo ehlangana khona cishe bekunzima kakhulu. Esinye isici somzamo wonke. udale izinselele ezinzima eqenjini lezokwakha.
“Eqinisweni wonke amalunga ahlukile,” kusho uFinney, oseneminyaka engu-20 eqeqeshelwa lo msebenzi.” Kwakudingeka benze amalunga onke aphelele ukuze wonke la mapayipi ahlanganiswe ndawonye endaweni eyodwa, futhi akwazi ukushisela amapayipi okwanele kuwo wonke amapayipi.
Ibhuloho labahamba ngezinyawo likaBarbara Walker Crossing linqamula umgwaqo wase-Portland onethrafikhi uBurnside Road. Laqala ukusebenza ngo-Okthoba 2019. UShane Bliss
"Ama-welds kufanele ashintshwe ngokuphelele. Ukushisela kungaba enye yezingxenye eziyinkimbinkimbi kakhulu zokukhiqiza."
Igama likaFerry, uBarbara Walker (1935-2014), ubeyinsika yemizamo yokongiwa kwe-Portland iminyaka, futhi unamandla emvelo yena. Udlale indima ebonakalayo ezinhlelweni eziningi zomphakathi e-Portland, okuhlanganisa i-Marquam Nature Park, i-Pioneer Courthouse Square kanye ne-Powell Butte Nature Park. eyayihlanganisa i-Wildwood Trail neBhuloho.
Njengoba u-Walker eqoqe cishe u-$500,000 emphakathini ukuze athenge i-Pioneer Courthouse Square ($15 ngetshe ngalinye eligandayiwe), inhlangano engenzi nzuzo i-Portland Parks Foundation iqoqe u-$2.2 wezigidi emnikelweni wangasese ongaba ngu-900 ukusiza ukuxhasa leli bhuloho.Idolobha lasePortland, i-Portland Parks & Recreation nezinye izinhlangano zinikele esisele sezindleko ezilinganiselwa ku-$4 million.
UCarpenter uthe ukuhlanganisa amazwi namaphimbo amaningi kuphrojekthi kube yinselele, kodwa kufanelekile.
"Ngicabanga ukuthi okuhlangenwe nakho okubaluleke kakhulu ukubambisana okuhle komphakathi, ukuziqhenya okukhulu, nokuzibandakanya okuhle - abantu bayakhokhela lokho," kusho uCarpenter." Hhayi nje abantu ngabanye, kodwa amadolobha nezifunda. Kungumzamo omkhulu weqoqo.
UFinney wengeze ngokuthi yena nethimba lakhe, kanye nabakhiqizi abanomthwalo wemfanelo wokwenza imiklamo ibe nempilo, kwadingeka banqobe izinselele eziningi ekumodeleni kwe-3D abakwenzile, ngenxa yabo bonke ubunkimbinkimbi bamajoyinti nokufakwa.
“Sisebenzisana nemininingwane yethu ukuze siqinisekise ukuthi wonke amamodeli ayalandelana ngoba futhi, asikho isikhala sephutha kulawa majoyinti amaningi ngenxa yobunkimbinkimbi bejiyomethri,” kusho uFinney.” Impela kuyinkimbinkimbi kakhulu kunamaningi.
"Ngenxa yalokho, kuningi okuyinkimbinkimbi okuvela kulo msebenzi. Ngingasho nakanjani ukuthi inkimbinkimbi kune [iphrojekthi] evamile. Kudingeka umsebenzi omkhulu ukuze wonke umuntu enze lo msebenzi uphumelele."
Nokho, ngokukaMbazi, phakathi kwezici ezibalulekile ebunkimbinkingeni bebhuloho, yini eyenza ibhuloho libe nomphumela walo wonke umpheme ogobile. Ingabe kuwufanele usizi ukwenza lokhu?Ikakhulukazi, yebo.
"Ngicabanga ukuthi idizayini enhle ivamise ukuqala ngokusebenziseka bese idlulela kokuthile okwengeziwe," kusho uMbazi.” Yilokho kanye okwenzeka kuleli bhuloho. Ngicabanga ukuthi into ebaluleke kakhulu idekhi egobile. Kulokhu, angizizwa kahle ngendawo kaswidi ngoba yonke indlela iyanyakaza futhi iyagoba. Angifuni nje ukujika kwesokunxele bese ngijika nginqamule ebhulohweni.
Ibhuloho labahamba ngezinyawo likaBarbara Walker Crossing lakhiwe ngaphandle kwendawo, lahlukaniswa laba izingxenye ezimbili eziyinhloko, lase lihanjiswa ngamaloli endaweni elikuyo manje.I-Portland Parks Foundation
"Uwenza kanjani umpheme ogobile? Yebo, kuvela ukuthi, i-truss enezintambo ezintathu isebenza kahle ngempela ejikeni. Uthola isilinganiso esihle kakhulu sokujula ukuya kwe-span. Ngakho-ke, yini ongayenza nge-truss enezintambo ezintathu ukuze ulenze libe lihle futhi libe Nobuhle, futhi ubhekisele ehlathini ngendlela eyenza kubonakale sengathi alikwazanga ukuthuthela kwenye indawo - liqonde kunoma iyiphi enye indawo? noma kusukela kokungokoqobo kuye emcabangweni .Abanye abantu bangase bakwenze ngenye indlela, kodwa yileyo kanye indlela engisebenza ngayo.”
Umbazi ubonga kakhulu izisebenzi ze-KPFF ngokumnikeza ugqozi ayeludinga ukuze akhiqize amapayipi ngale kwesiteki, okwanikeza ibhuloho umuzwa ophilayo, ovela ehlathini. Lo msebenzi wathatha cishe iminyaka eyisikhombisa kusukela ekuqaleni kuze kube ukuvulwa okukhulu, kodwa uFinney wayejabule ngokuba nethuba lokuba yingxenye yawo.
“Kuyajabulisa ukuba nento onganikela ngayo kuleli dolobha futhi uziqhenye ngayo, kodwa futhi kumnandi ukubhekana nenselelo yobunjiniyela yobunono,” kusho uFinney.
Ngokusho kwe-Portland Parks Foundation, cishe abantu abangu-80,000 abahamba ngezinyawo bazosebenzisa ibhuloho labahamba ngezinyawo unyaka ngamunye, ukusindisa inkinga yokuwela ingxenye yomgwaqo ekwazi ukubona izimoto ezibalelwa ku-20,000 ngosuku.
Namuhla, ibhuloho liyaqhubeka nombono ka-Walker wokuxhumanisa izakhamuzi zasePortland nezivakashi ebuhleni bendawo yemvelo ezungezile.
“Kudingeka sinikeze abantu basemadolobheni ithuba lokusebenzisa imvelo,” u-Walker (ocashunwe yi-World Forestry Center) wake wathi.” Injabulo ngemvelo ibangelwa ukuba ngaphandle. Ngeke ifundwe ngombono ongokoqobo. Ngokuzibonela mathupha imvelo, abantu banesifiso sokuba abaphathi bomhlaba.”
U-Lincoln Brunner ungumhleli we-The Tube & Pipe Journal. Lesi yisikhathi sakhe sesibili e-TPJ, lapho asebenze khona njengomhleli iminyaka emibili ngaphambi kokusiza ukwethula i-TheFabricator.com njengomphathi wokuqala wokuqukethwe kuwebhu we-FMA. Ngemva kwalokho okuhlangenwe nakho okuzuzisa kakhulu, uchithe iminyaka engu-17 emkhakheni ongenzi nzuzo njengentatheli yamazwe ngamazwe kanye nomqondisi wezokuxhumana. Ungumbhali oshicilelwe futhi ubhale kabanzi ngemboni yensimbi.
I-Tube & Pipe Journal yaba umagazini wokuqala ozinikele ekukhonzeni imboni yamapayipi ensimbi ngo-1990.Namuhla, isewukuphela kwencwadi eNyakatho Melika enikezelwe embonini futhi isibe umthombo othenjwa kakhulu wolwazi lwabachwepheshe bamapayipi.
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