Ukubhola Okujikisa Nge-Pipe Elahlekile

Ukubhola kwe-rotary ngepiphu ebonileyo iyinsiza ekhethekile yokuphucula ukwakha isisekelo esijulile, ihlanganisa izindlela zokubhola ze-rotary nezindlela zokufaka ikhephu ezihlala njalo. Kulomsebenzi, ipipi lensimbi elingaphakathi nelokhu elinokugqoka elikhethekile liphumelelwa emhlabeni, liphumeza izendlalelo ezahlukene zomhlabathi ngokuqhubekayo nokuqinisa phansi. Isici esihlukile salolu hlobo lokusebenza sikhona kumkhankaso we- "lost-tip," lapho umphetho wokugaya uhlukaniswa futhi uhlala emhlabeni emanzini aphezulu, kanti ikhephu lensimbi lisebenza njengengxenye yesakhiwo esiqinile esihlala endaweni ngaphakathi kokukhula. Le ndlela ikhlele kakhulu emisebenzini ye-geotechnical engineering lapho izimo zomhlabathi zidinga kokubili izinzuzo zokuphucula ukwakha nokwesekwa kwesakhiwo okuhlala njalo okuvela ezinhlelweni ezihlanganisiwe. Izinsiza zokubhola ze-rotary zisebenzisa amandla kanye nomthwalo ophakathi ngesikhathi esifanayo, kuvumela umphakathi wokugaya ukuba ungene kahle ezindaweni zomhlabathi ezinzima, imicibisholo eqinile, kanye nezimo zomhlaba ezihlanganisiwe ezingase zibe nokuqina kwendlela yokubhola ejwayelekile. Ukuhlukaniswa kwemvelo kwendlela yokwakha le kwenza kube nokunciphisa ukuphela kokukhishwa komhlabathi, kunciphisa izidingo zokuphathwa kwezilayidi futhi kuqinisekise ukuzinza komhlaba phakathi nenqubo yokufaka, okwenza kube lula kakhulu ezindaweni ezimaphakathi zasemadolobheni nasemathafeni anezakhiwo ezithintekayo. Uhlelo lwepiphu oluphumelelwe lwasebenza ngochungechunge olwakhelwe kahle lokubhola, ukuhanjiswa, nezinyathelo zokufaka ezihlala njalo. Izinsiza zokwakha ezijwayelekile ezinemikhono ephezulu ziqhubekela phansi njalo ipipi elingama-hollow lishumayela kakhulu emhlabeni, kanti imikhono yephipi ivamile ukuhlanganiswa ngezixhumi ze-mechanical noma ezigoqiwe njengoba umhlabathi ukhuluma. Umkhankaso we-lost-tip usebenza njengohlelo lokuhlukanisa olulawulwa oluhlukanisa emanzini aphezulu akhethiwe, kuvumela ikhephu elingemuva ukuba liqhubeke nezinyathelo zokufaka ezibalulekile ngokwemigomo. Uma umphetho wokugaya uhlukaniswa, ipipi elingama-hollow liqhubeka nokuphuma emhlabathini imibono ye-lateral engasiza ngokushesha ezenzakalweni zomhlabathi futhi lisebenze njengemfundiso eqinile yokufaka ingaphezulu le-concrete noma i-grout. Le ndlela ibhekela ama-profiles ahlukahlukene emhlabeni, kusuka ezindaweni ezihlanganisiwe ukuya ezindaweni ezinzima ezingama-graular kanye nephunga lamadwala, okwenza kufanele izimo ezihlukahlukene ze-geotechnical ezibhekene nezindawo ezihlukahlukene zokwakha. Ukuhlanganiswa kwezobuchwepheshe bokubhola kwe-rotary nezimiso zokuphucula ukwakha kuvumela abathengisi ukuthola izinga lokufaka elishesha ngenkathi kugcinwa ikhwalithi ephakeme nokuma okucacile kwezidingo zesakhiwo. Izicelo zokubhola kwe-rotary ngepiphu ebonileyo zikhula kabanzi ezinhlelweni zokwakha izindlu, ezokuhweba, kanye nezokwakha izinqubo ezidinga izinhlelo zesibaseko ezijulile ezinezimfuno eziqinile zezehlakalo. Izinzuzo ezihlukahlukene zokwakha izakhiwo eziningi, amabhuloho, izikhungo zezimboni, kanye nezakhiwo ezikhethekile zenza kube nemiphumela ephumelelayo yokufaka ikhephu elihlala njalo kanye nemiphumela yokuhanjiswa komhlabathi okuphakeme. Le ndlela ikhethekile ikhlele ezindaweni lapho ukuhamba nokukhala kwendabuko kuyala ezindlela zokushaya ezivamile, inikezela ukusebenza okuthule kakhulu uma kuqhathaniswa nokuphindwe kwepiling ngenkathi kuqhubekwa izithako ezifanayo noma ezithuthukile zokuphatha umthwalo. Ukuhlola okuphumelelayo kwe-geotechnical kanye nokukhetha kahle izinsiza kuqinisekisa ukusebenza okuhle ezimeni zomhlaba ezahlukene, nezifundo ezimbalwa zendlela yokubhola zikhombisa ubukhulu obukhulu, isikhala, nezidingo zemigqa. Abathengisi abasebenzisa le ndlela yokwakha bangakha ukwakha okuphumelelayo kwemhlaba nokudlulisa umthwalo kumathafa ajulile aphumayo ngenkathi bephatha kahle izimo zemvelo nezokusebenza.