Amathuluzi eDTH Hammer Okubhoboza amaMicropiles

Amathuluzi okubhola i-DTH hammer okwamamicro piles przedstawia indlela ehlosiwe neyeqophelweni yokufaka ama-piles abholwe nge-diameter encane ezimweni zokwakhiwa eziyinkimbinkimbi lapho amathuluzi okuhlela ajwayelekile angase angaqondakali noma angase ahluleke ekutholeni inzuzo. I-DTH, noma i-down-the-hole, ubuchwepheshe bokubhola be-hammer bulethe amandla okulwa ngokuqondile kumgibeli wobbhe, kuvumela ukungena okusheshayo phakathi kwezintaba eziqinile, izakhiwo zempahla ezijulile, kanye nezakhiwo zezokwakha eziphukile. Le ndlela yokubhola ibalulekile kumaphrojekthi wamicro pile, lapho ukugxila ekubholeni okuncane kanye nokungena okuphakeme kubalulekile ukuze kufakwe ama-casings aqinile ezinsimbi kuya ezindaweni ezijulile imvamisa ezidlula ama-mitha angama-30. Indlela ye-DTH hammer yokubhola yehlisa isikhathi sokubhola uma kuqhathaniswa nezindlela ze-rotary kuphela, okukhombisa izinzuzo zezindleko kumsebenzi, ukuhweba kwamathuluzi, kanye nezindleko zomsebenzi. Ochwepheshe bezobunjiniyela abaphezulu kanye nabakhi bezithuthi bahlala bethembela kumathuluzi okubhola i-DTH hammer uma besebenza ezindaweni zokwakha ezinganeni ezibophezelwe nezindonga eziqine, noma uma behlola izintaba eziwejayo, i-limestone, i-shale, nezinye izakhiwo zezomhlaba lapho amandla okudonsela ngokujwayelekile engatholakali khona. Inqubo yokwazisa ifaka um head rotary top-drive ophakanyisiwe eduze ne-mast yokubhola esebenza ngokubambisana ne-hammer percussion ye-DTH ekhona ngemuva komgibeli. Umoya ophephethekileyo noma i-nitrogen ibeka amandla kumkhono we-hammer, okungaholela kumazinga okuphumelelisa angama-800 kuya ku-3,000 ukuphosa ngeminute kuye ngezici ezithile zamathuluzi e-DTH nokuthi izimo zomhlaba. Isivinini sokujikeleza sivamise ukudlula kusuka ku-30 kuya ku-80 ukuphindaphinda ngeminute, kuzinzile uma ummazi wama-percussive we-hammer ephukisa futhi abangezivumele izakhiwo zedigri. Izithako zokuhlanza, noma umoya noma amanzimilembe okuhlanza, zikhulula izikhala ezibholwe, zigcina ukuhlanzeka kweholi futhi zivinjeze ukuxhunywa kabili. Le ngxube yokujikeleza nokuhudula ikakhulukazi iyasebenza ezikhungweni ezinhle kakhudlwana zomhlaba, lapho abaphakeli bokubhola behlangabezana nezinguquko ezisheshayo phakathi kohlanga oluthile okanye umhlabathi ongamalungiselelo nezakhiwo ezijulile ezisebenza kahle. Izindawo zokufaka i-micro pile zihlala zifakazela lezi zimo zezomhlaba ezinzima, kuthinta kakhulu amathuluzi okubhola we-DTH kumathuluzi esikhungo sokwakha se-micropiling. Amaphrojekthi e-micropile emiphakathini yasemadolobheni, izinhlelo zokuthuthukisa izigaba, i-underpinning yezakhiwo ezikhona, kanye nemisebenzi yokuhlanza izindawo ze-seismic kuvamile ukufuna ukubhola kwe-DTH hammer lapho ukuhlela okukhiqizwayo kuvuma ukufakwa ngaphakathi kwe-overburden, izinto zokugcwalisa, noma umhlanga obufanele ezindaweni ezithile. Ukucacisa okwenziwa yizinsiza ze-DTH kubavumele abaphakeli ukuba bagcine izinqubo ezisolisayo, ezibalulekile lapho kufakwa ama-micro pile aqinile anokwakha eduze nezakhiwo ezikhona. Izicelo zibhalansiswa kumazinga ezakhiwo ezihlukahlukene, ukuthuthukiswa kwama-bridge abutment, ukuthuthukisa umhlaba ngama-landslides emithonjeni enamathafa, kanye nemiphakathi ye-underground enkulu. Izimo zomhlaba ezihlanganisa umsandla kanye negravel enama-cobbles kuya ezindaweni zomphezulu ezingaqinile eziqine kakhulu zihamba phambili ngenxa yemisebenzi yokungena okuphumelelayo okutholwe yi-DTH hammer. Kubachwepheshe bamafundisi bezikhalazo ezijulile kanye nezichwephesha ze-geotechnical, ukufinyelela kumathuluzi okubhola e-DTH okunokwesekwa kwamadoda abalulekile kuthinta ngokuqondile ukwenziwa kwamaphrojekthi, ukuhamba kwesikhathi, kanye nezindleko zokwakha eziphumelelayo kuyo yonke imisebenzi efuna ukufaneleka kwezindleko ngesikhathi sokubhola ezindaweni ezinzima.