Imvelo yomhlabathi kumele ihlolwe.I-strata ethambile idinga ubude bokubambelela obude ukuze isebenze kahle.Umhlabathi othambile uphumela kumasayizi embobo amakhulu ngosayizi omncane othile (ngenxa yokuhlengezela nokuhlenga kabusha).
Umhlabathi kufanele ulinganiswe kahle (okungukuthi uvinjelwe) ngaphambi kokubhoboza nokubhawuliswa.Ukukala kabusha ngezikhathi ezithile kungase kudingeke ngenkathi kubholwa.
Izakhiwo zemishini ye-bolt kufanele zifanele izimo zomhlabathi, ubude be-bolt kanye nephethini yokubopha.Ukuhlolwa kokudonsa kufanele kwenziwe ukuze kutholwe ukubambelela kokuqala kwamabhawodi okushayisana.
Amapuleti azacile noma abuthaka azokhubaza lapho kunebhawudi eliphansi.Ibhawodi ingase futhi iklebhule ipuleti phakathi nokufakwa noma ngokulayisha ibhawudi.
Imbobo kufanele ihlanzwe futhi ihlolwe ukuze kuqinisekiswe ukuthi i-friction bolt izofaka kahle.Ukwehluka kobubanzi bezimbobo (ngenxa yamandla ahlukene estrata yamadwala noma umhlabathi ohlukene ngokwedlulele) kungaveza ukuhluka kwamandla okubambelela ezindaweni eziphakeme ezihlukahlukene.
Uma izimbobo zibhojwa zibe mfishane kakhulu ibholidi izophumela ngaphandle kwembobo futhi ipuleti ngeke lixhumane nedwala.Ukulimala kwebhawodi kuzoba umphumela uma kwenziwa umzamo wokushayela ibhawudi ngaphezu kobude bembobo obuzovuma.Ngakho-ke imbobo kufanele ibe ngamasentimitha ambalwa ukushona kunobude bebhawodi obusetshenziswayo.
Usayizi wembobo odingekayo kubhawodi lokushayisana yisici esibaluleke kakhulu sokufakwa.Amandla okubamba webhawodi ancike ekutheni imbobo incane kunobubanzi bebhawodi.Uma imbobo iba nkulu uma iqhathaniswa nobubanzi bebhawodi, amandla okubamba ayancipha (okungenani ekuqaleni).Izimbobo ezinkulu zingabangelwa ukusebenzisa usayizi webhithi ongalungile, ushiye umshini wokubhoboza ugijima ngenkathi uvula imbobo, umhlabathi othambile (amaphutha, i-gouge, njll. ) kanye nensimbi egobile.
Uma usayizi wembobo mncane kakhulu uma kuqhathaniswa nosayizi wokungqubuzana kuba nzima kakhulu ukufaka ibhawudo.Ibhawodi lingonakala okungukuthi likhintshwe noma ligotshwe lapho lifakiwe.Izimbobo ezincane zivame ukubangelwa amabhithi agugile kanye/noma osayizi abangalungile abasetshenziswayo.Uma insimbi ehlangene isetshenziswa nesitobha noma i-jackleg, ububanzi bembobo buyancipha ngokushintsha ngakunye kwensimbi (umkhuba ojwayelekile udinga ukuba kusetshenziswe izingcezu ezincane njengokubhoboza okukodwa emgodini).Ngokuncishiswa ngakunye kobubanzi bembobo amandla okubambelela ayanda.Insimbi ehlanganisiwe ivame ukuphumela emigodini egwegwile futhi kufanele igwenywe noma nini lapho kungenzeka.
Ukuze uthole ibhawodi elivamile lezinyawo ezi-5 noma ezingu-6, isitobha noma i-jackleg izoshayela ibhawodi emgodini kumasekhondi angu-8 kuya kwangu-15.Lesi sikhathi sokushayela sihambisana nama-anchorage okuqala afanelekile e-stabilizer.Izikhathi zokushayela okusheshayo kufanele zisebenze njengesexwayiso sokuthi usayizi wembobo mkhulu kakhulu futhi ngaleyo ndlela ukubambelela kokuqala kwebhawudi kuzoba phansi kakhulu.Izikhathi zokushayela ezinde zibonisa osayizi bezimbobo ezincane okungenzeka babangelwa ukuguga kancane.
Izinkinobho zezinkinobho ngokuvamile zifika ku-2.5mm ezinkulu kunosayizi wazo osilayishiwe.Ibhithi yenkinobho engu-37mm empeleni ingaba ngu-39.5mm ububanzi uma isha.Lokhu kukhulu kakhulu ukungqubuzana okungu-39mm.Izinkinobho zezinkinobho ziguga ngokushesha nokho, okwandisa amandla okubambelela futhi andisa izikhathi zokushayela.Amabhithi anqamulayo noma okuthi "X", ngakolunye uhlangothi, anosayizi weqiniso osayizi ogxiviziwe ngokuvamile phakathi kuka-0.8mm.Zibamba igeji yazo kahle kakhulu kodwa zivame ukubhola kancane kunezinkinobho zezinkinobho.Kungcono ukhethe izinkinobho zokufaka ukungqubuzana lapho kungenzeka khona.
Ama-bolts kufanele afakwe eduze kwe-perpendicular ebusweni bedwala ngangokunokwenzeka.Lokhu kuqinisekisa ukuthi iringi eshiselwe ixhumene nepuleti nxazonke.Amabhawudi angahambisani nepuleti nangaphezulu azoholela ekutheni iringi ilayishwe endaweni engase ibangele ukwehluleka kwangaphambi kwesikhathi.Ngokungafani namanye ama-rock bolt, amawasha ezihlalo ayindilinga awatholakali ukuze alungise i-angularity enezinza eziqinile.
Amathuluzi omshayeli kufanele adlulisele amandla e-percussive kubhawodi ngesikhathi sokufaka, hhayi amandla ajikelezayo.Lokhu kuphambene nezinye izinhlobo eziningi zokusekela phansi.Ukuphela kwe-shank yomshayeli kufanele kube ubude obufanele ukuxhumana ne-drill piston ezitobhini kanye nama-jacklegs (okungukuthi 41/4" ubude ku-7/8" insimbi yokubhola eyi-hex).Isiphetho se-shank kubashayeli siyindilinga ukuze singabandakanyi ukujikeleza kwe-drill.Amathuluzi omshayeli kufanele abe nesimo esifanele sokuphela ukuze alingane nokungqubuzana ngaphandle kokubopha futhi abangele ukulimala kwebhawudi ngesikhathi sokufakwa.
Imfundo efanele yabasebenzi basezimayini nabaphathi kuyimpoqo.Njengoba ukwanda kwabasebenzi kuvame ukuvela kubasebenzi abafaka amabhawudi, imfundo kumele iqhubeke.Abasebenzi abanolwazi bazokonga imali ngokuhamba kwesikhathi.
Ukufakwa kufanele kuqashwe ukuze kuqinisekiswe izinqubo ezifanele kanye nekhwalithi kugcinwa.Izilinganiso zokuhlola ukudonsa kufanele zenziwe ngokujwayelekile kuzinzalisi zokungqubuzana ukuhlola amanani okuqala okubambelela.