Ukubuyela emva kuyisitshixo ekuqiniweyo okuzinzile nokuzinzile
Ukubuyiswa kwakhona yinkqubo yokubuyisela umhlaba ngaphakathi kumsele okanye kwisiseko xa kugqitywa ukucandwa. Inkqubo yokubuyisela phambili idinga izakhono nolwazi kwiinkcukacha, iimfuno zeemvumelwano kunye nokuqonda umhlaba. I-Backfilling isetyenziswe kwimisebenzi efana nokukhusela iziseko , ukuhlaziywa komhlaba, okanye ukuzalisa izakhiwo ezingaphantsi komhlaba. Yonke imimandla ineempawu ezizodwa ezifuna iindlela ezahlukeneyo zokwakha ukuqinisekisa ukusebenza okuphezulu.
Ukulayishwa kwempembelelo yepayipi, izakhi, izakhiwo kunye nokufakela kufuneka zikhutshwe ngexesha lokufakwa kwe-backfill. Ukubuyiswa kwakhona kungenziwa ngokusetyenziswa kwezi ndlela ezilandelayo.
Indlela yokudibanisa i-Backfill kwiTrenches
Le ngxelo iyahlanganiswa isebenzisa ezinye iindlela zokucwangcisa ezifana ne-compactor kwi-excavator okanye "jack jump" -perpe compactor. Ihlabathi edibeneyo engabi ngaphantsi kweepesenti zesantya esicinci esicacileyo njengoko sikhethwe ngokuhambelana ne-ASTM D698, iNkqubo ye-A (iProducta eSebenza). Ukuphakama komhlaba kuya kuxhomekeka kwimeko yokubuyiswa kwe-backfill, kunye nezixhobo zokusebenza zokusetyenziswa. Amanzi anokungeniswa ngexesha lokuqulunqa, ukuncedisa ngokucwangcisa. Amanyathelo alandelayo anconywa:
- Ukubuyiselwa kwinqanaba le-4 "-6" (ukuzaliswa okungenanto kunye nokucoceka kweengxowankulu)
- Uhambelana ne-1 lb. compactor
- Amanzi ngokugqibeleleyo
- Phinda kwakhona amanyathelo amathathu okuqala
Indlela yokubuyisela kwakhona ukusetyenziswa kwamanzi
Ukujikwa kwamanzi yinkqubo exhomekeke kwizinto ezithile kodwa akukho nto ihambelana nayo.
Ukuzaliswa ngokutsha kunye nejeti kuvumela i-kontraki ukuba ihambe emseleni kwaye ibuye emva koko iphoqele amanzi agxininiswe kumsele usebenzisa isixhobo esinexesha elide. Ukuhlaselwa kwamanzi kufuneka kugwenywe kwihlabathi leplastiki okanye umhlabathi obunzima, nangona kunjalo, kunconywa entlabathi okanye kwi-bedrock edibeneyo. Xa uhlahlela, upompoza amanzi phantsi koxinzelelo kwaye usebenzise amandla amanzi ajijiweyo ukuhambisa i-bedding okanye impahla yokubuyisela.
Njengokuba kukho nayiphi na imali yokubuyisela, izinto kufuneka zifakwe ngokukhawuleza kwaye ziphakanyiswe. Ukukhukhula okanye 'ukuhlawula' ngokuphindaphinda ngokubanzi kuvelisa uhlwempuzeke ekusebenzisaneni okubi kakhulu. Kubalulekile ukuthatha amanyathelo okukhusela ukuqulethe amanzi aqulethe i-sediment, kwaye ngokukodwa, ukuthintela ukuba ungene emanzini kunye neeklasi zamanzi, ngokuhambelana nezikhokelo ze-EPA. Ukuba amanzi akakwazi ukukrazula kwihlabathi lokubuyisela, izinto ziya kulungiselelwa ukuwa kwexesha elizayo.
Ukuzaliswa okukhuselekileyo kusetyenziswa ukubuyisela
Ukubuyiswa kwakhona kungenziwa kwakhona ngokusebenzisa ukuzaliswa okukhatywayo, impahla eqinisekisayo kunye nomlinganiselo ophantsi wamanzi / isenti , uhanjiswe kwindawo yomsebenzi ngelogi edibeneyo. Izinto eziphathekayo zibekwa njenge-backfill ngqo kwiloli, njengokhonkethi rhoqo. Ukuzaliswa kwakhona ngokuzaliswa kwefowuni kufuneka kwenziwe ngokucophelela, ukuqinisekisa ukuba ipayipi yombuso ihlanganiswe okokuqala ngento ebanzi. Ukuvumela ukuzaliswa okufutshaneyo ukufaka ipayipi kungabangela iingxaki kulabo abafuna ukumba ukujikeleza ipayipi esikhathini esizayo. Olunye umceli-mngeni xa usebenzisa ukuzaliswa okutshatyalaliswayo kukuba izinto ziyahamba ukuze ikontraki ivimbele okanye ithintele ukuba impahla yokubuyisela iqhubekele ngokuqhubekayo kwezinye iinkalo.
Indlela yokubuyisela ngokufanelekileyo i-Trenches Utility
Landela la ma nyathelo xa uphinde uzalise iifowuni zomsebenzi:
I-backfill etrafries kunye nokucima ngokukhawuleza emva kokuba umbhobho ubekwe, ngaphandle kokuba omnye ukhuseleko lujoliswe okanye luboniswe.
2. Khetha kwaye ubeke iincwadi zokubuyisela ngokutsha ngokubhekiselele kwixesha elizayo ukhuseleko lwemibhobho.
3. Kwinqanaba elincinane lomsele, idiphozi evunyelwe ukubuyiswa kwakhona kunye nezinto zokulala ezikwinqanaba lika-6 "ubukhulu obuphezulu, kwaye zihambelane neendawo ezifanelekileyo zokuxinwa kwintsimi yomhlaba osondeleyo kude kubekho isikhombisi esingaphantsi kwe-12" usebenzisa ukunyamekela okukhethekileyo ukulimaza umbhobho kunye neengubo zokubhobhoza.
4. Ngaphandle kwezixhobo ezikhethekileyo zokupaka , buyiselwa kwisisele esinqununu kunye nezinto eziphathekayo ngaphandle kwamatye amakhulu kunama-6 "okanye i-½ ububanzi obuqingqiweyo, nayiphi na into encinci, nawuphi na umlinganiselo.
5. Ngeendlela, izitrato, kunye nezinye indawo eziphambili:
- Ukucoca ngokukhawuleza ngamanqaku angama-6 "kunye nokusebenzisa iindleko ezinzima zomoya okanye ezilinganayo.
- Tamp ngalunye ugcino kwizinga elilinganayo le-100% ye-ASTM D698 Curve Curve.
- Ukubonelela ngokunyanzela ngokushiya iifayile ezisezantsi ezingavumelekanga kwizithuthi ngelixa zigcina umhlaba ngamatye aqhekekileyo.