Taw qhia
Shotcrete yog cov txheej txheem kev tsim kho nrov siv ntau yam kev siv, los ntawm qhov av thiab mines mus rau pas dej da dej thiab tsev. Shotcrete yog ib txoj hauv kev ntawm kev siv pob zeb uas cuam tshuam nrog kev txau cov pob zeb rau ntawm qhov chaw uas siv cov khoom siv phom tua los yog phom phom. Nws yog ib txoj hauv kev ceev thiab ua tau zoo ntawm kev tsim kho uas muab cov khoom tiav zoo.
Txawm li cas los xij, thaum muaj ntau qhov zoo rau kev siv tshuaj tua kab mob, kuj tseem muaj qee qhov tsis zoo uas yuav tsum tau muab coj los xav. Hauv tsab xov xwm no, peb yuav tshawb txog qee qhov tsis zoo ntawm kev txhaj tshuaj.
Shotcrete yog dab tsi?
Ua ntej peb tham txog qhov tsis zoo ntawm cov tshuaj tua kab mob, cia peb ua tib zoo saib seb nws yog dab tsi thiab nws siv li cas hauv kev tsim kho.
Shotcrete yog ib hom pob zeb uas yog siv los ntawm kev siv lub tshuab hluav taws xob siab. Cov txheej txheem no feem ntau yog siv rau qhov chaw nqes hav, tunnels, tuav phab ntsa, pas dej da dej, thiab lwm yam kev tsim kho. Shotcrete muaj ntau yam thiab tuaj yeem siv ntau yam kev siv, suav nrog ob qho tib si saum toj thiab hauv qab av. Muaj ob hom kev txhaj tshuaj tseem ceeb: ntub-sib xyaw thiab qhuav-sib xyaw.
Wet-mix shotcrete suav nrog kev txau cov cement, xuab zeb, dej, thiab cov khoom ntxiv rau ntawm qhov chaw. Qhov sib tov yog feem ntau tov nrog lub twj tso kua mis siab thiab tom qab ntawd txau rau saum npoo siv lub nozzle.
Qhuav-mix shotcrete, ntawm qhov tod tes, koom nrog kev sib xyaw cov khoom xyaw sib xyaw thiab tom qab ntawd thauj cov khoom sib xyaw qhuav rau hauv lub plhaw. Cov sib tov yog ces thauj mus rau cov tshuaj tsuag nozzle qhov twg dej ntxiv los tsim cov pob zeb ntub dej sib tov. Dry-mix shotcrete feem ntau yog siv rau kev ua haujlwm overhead, vim nws nyiam lo zoo dua rau qhov chaw ntsug.
Disadvantages ntawm Shotcrete
Txawm hais tias muaj ntau qhov zoo rau kev siv tshuaj tua kab mob, kuj tseem muaj qee qhov tsis zoo uas yuav tsum tau coj mus rau hauv tus account. Qee qhov no suav nrog:
1. Tus nqi
Ib qho ntawm qhov tsis zoo ntawm kev txhaj tshuaj yog nws cov nqi. Shotcrete feem ntau kim dua li cov ntawv sau ua vaj tse vim yog cov cuab yeej tshwj xeeb thiab cov txheej txheem thov. Tsis tas li ntawd, vim tias txhaj tshuaj tiv thaiv yog txau rau ntawm qhov chaw, feem ntau muaj pov tseg ntau dua li cov txheej txheem ua vaj tse.
2. Kev Tswj Xyuas Zoo
Lwm qhov tsis zoo ntawm shotcrete yog qhov nyuaj rau kev tswj xyuas kom zoo. Vim tias cov txheej txheem kev thov yog nrawm, nws tuaj yeem nyuaj los xyuas kom meej tias cov khoom sib tov tau siv sib npaug thiab nrog qhov tseeb sib xws. Qhov no tuaj yeem ua rau muaj kev hloov pauv hauv cov khoom kawg, uas yuav cuam tshuam rau nws lub zog tag nrho thiab kav ntev.
Tsis tas li ntawd, shotcrete muaj kev cuam tshuam ntau dua rau kev tawg dua li cov pob zeb ib txwm muaj vim qhov xwm txheej ntawm daim ntawv thov txheej txheem. Kev txhim kho kom raug thiab kho cov txheej txheem yog qhov tseem ceeb hauv kev ua kom muaj zog thiab ruaj khov kev tsim kho qhov project.
3. Kev txhawj xeeb txog kev noj qab haus huv thiab kev nyab xeeb
Daim ntawv thov txhaj tshuaj yuav tsum tau siv cov cuab yeej tshwj xeeb thiab kev tiv thaiv kev nyab xeeb kom tsis txhob raug mob rau cov neeg ua haujlwm. Cov hoses thiab cov cuab yeej siv siab siv hauv daim ntawv thov txhaj tshuaj tuaj yeem ua rau muaj kev phom sij yog tias tsis siv kom raug, thiab nws yog ib qho tseem ceeb kom ntseeg tau tias cov neeg ua haujlwm tau txais kev cob qhia zoo hauv kev siv.
Tsis tas li ntawd, cov plua plav thiab cov khib nyiab tsim thaum lub sij hawm siv tshuaj tua kab mob tuaj yeem ua rau muaj kev phom sij rau cov neeg ua haujlwm kev noj qab haus huv yog tias lawv tsis hnav kev tiv thaiv ua pa kom zoo.
4. Kev kho qhov nyuaj
Kev kho cov tshuaj tua kab mob tuaj yeem nyuaj dua li cov pob zeb ua ib txwm muaj. Vim tias cov tshuaj tua kab mob yog txau rau ntawm qhov chaw, nws tuaj yeem nyuaj kom phim qhov kev ntxhib los mos thiab xim ntawm qhov chaw qub thaum kho. Tsis tas li ntawd, yog tias qhov chaw txhaj tshuaj thawj zaug tau pib tawg lossis tsis zoo, nws yuav tsum tau tshem tawm tag nrho saum npoo thiab pib dua.
Xaus
Txawm hais tias muaj ntau qhov zoo rau kev siv tshuaj tua kab mob, kuj tseem muaj qee qhov tsis zoo uas yuav tsum tau muab coj los xav ua ntej txiav txim siab siv txoj kev tsim kho no. Qee qhov tsis zoo ntawm kev txhaj tshuaj tiv thaiv muaj xws li nws cov nqi, kev nyuaj rau kev tswj xyuas kom zoo, kev txhawj xeeb txog kev noj qab haus huv thiab kev nyab xeeb, thiab nyuaj rau kev kho.
Txawm li cas los xij, nrog rau kev npaj thiab kev ua kom zoo, shotcrete tuaj yeem muab kev tsim kho kom ruaj khov thiab muaj txiaj ntsig zoo hauv ntau yam kev siv, ua rau nws yog qhov kev xaiv zoo rau ntau qhov kev tsim kho.
