Kelly bar drilling wani muhimmin aikin gine-gine ne a masana'antar gine-ginen kasa, musamman ga ginin burodi na diamita babba a cikin yanayin kasa marasa tabbas. Wannan fasaha ta amfani da kelly bar - wata rod ɗin steel mai ɗauɗauka ko hexagonal wacce ke watsa ƙarfin juyawa da juyawa daga dandamali na rigging ta hanyar teburin juyawa zuwa kayan aikin gina. Kelly bar na aiki a matsayin babban injin, yana ba masu aiki damar aiwatar da ƙarfin juyawa da ƙarfin juyawa da ake bukata don shiga cikin ƙasashen da ke da ƙarfi, duwatsu masu lalacewa, da yanayin fuskantar fuskantar fuskoki a cikin manyan ayyukan gine-gine. Wannan dabarar gina ita ce muhimmiyar kafa tsarin kasa mai tsauri don gina gini-gini, titi, manyan wuraren masana'antu, da binciken kasa mai zurfi wanda ake bukata burodi ya fi mita daya a diamita.
Horarwa ta kelly bar ita ce hanyar horar da rotary da ke da mahimmanci ga gine-ginen gindin da na kasa. Wannan hanyar tana amfani da kelly bar - wani gatari mai ɓoye, murabba'i ko gatari mai tsawo wanda ke watsa ƙarfin gurɓatawa daga teburin rotary na injin horarwa zuwa kayan aikin horarwa a ƙasan tafki. Horarwa ta kelly bar ta hanyar bushe musamman tana nufin ayyukan horarwa da ake gudanarwa ba tare da ruwa ko horo ba, amma a maimakon haka tana dogara ne ga iska, ci gaba da casing, ko kuma kawar da auger mai ci gaba don tsabatar da tafkin horo da kuma kare aminci. Hanyar wane ya yi mahimmanci ga binciken kasa, gine-ginen gindin, da ayyukan piling inda ƙazanta ruwa ta horo ta yi buƙata ko inda yanayin ƙasa ya ba da damar ci gaba da horarwa ta hanyar bushe.
Horarwa ta kelly bar tare da karewa ta casing ita ce hanyar horar da tafki mai nisan gaske da ake amfani da shi sosai a cikin ayyukan gine-ginen gindin da na kasa wanda ke buƙatar tabbatar da aminci na tafki da kuma kare namun daji. Wannan hanyar tana amfani da tsarin horar da kelly bar inda ake amfani da kelly bar mai tsawo da kuma mai ƙarfi don watsa ƙarfin gurɓatawa da kuma ƙarfin gudu zuwa kayan aikin horarwa a kasan tafki, yayin da ake karewa ta casing a kewayen tafki don hana rugujewar bangon tafki, ƙazanta ruwa, da kuma kare aminci na tafki. Casing na da ayyuka daban-daban: yana kare yanayin ƙasa mara ƙarfi kamar irin na cohesionless sands, silts, da weak clay layers wanda za su ruguje cikin tafki; yana kare ruwan ƙasa daga ƙazanta ruwa daga saman kasa yayin da yake kare hoton kasa don binciken inganci da kuma tsara gindin; da kuma yana ba da damar aiwatar da namun daji mara ƙazanta ko ƙarancin ƙazanta wanda ake buƙata don gwajin labaratori na kasa da kuma binciken injiniya.
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