Hauv kab lus no (Quick Navigation)
Vim li cas Grouting yog "Soul" ntawm Tus Kheej -Drilling Anchor System?
Qhov yuam kev 1: "Kev Ua Haujlwm" Tom Qab Dej -Cement Ratios
yuam kev 2: Tsis txaus Grouting Siab thiab Voids.
Qhov yuam kev 3: Lub Anatomy ntawm High -Kev Ua Haujlwm SDA System
Qhov yuam kev 4: Kev txiav tawm ntxov ntawm Grouting.
yuam kev 5: Txiav kaum ntawm Cement & Additives
Vim li cas Grouting yog "Soul" ntawm Tus Kheej -Drilling Anchor System?
hollow grouting thauj tog rau nkoj bar
Hauv geotechnical engineering, ib qho kev xav tsis zoo yog tias lub zog ntawm kev txhawb nqa tsuas yog nyob rau hauv qib steel bar. Txawm li cas los, nyob rau hauv cov ntaub ntawv ntawmTus kheej -Drilling Anchors (SDA), lub hollow bar tsuas yog ib nrab ntawm zaj dab neeg. Qhov kev ua tau zoo ntawm qhov system-nws lub peev xwm los tuav rov qab tons ntawm lub ntiaj teb txav- nyob ntawm yuav luag tag nrho ntawm qhov zoo ntawm lub cev grout.
Xav txog cov grout li "cov ntaub so ntswg sib txuas." Without a dense, high-strength cement matrix, the anchor bar is merely a hollow tube sitting loosely in the ground. Nov yog vim li cas grouting tsis yog - tus ntsuj plig ntawm SDA system:
Lub hom phiaj kawg ntawm txhua lub pob zeb bolt yog hloov cov khoom thauj los ntawm cov pob zeb tsis ruaj khov mus rau hauv av ruaj khov. Qhov kev hloov pauv no tshwm sim los ntawm kev cuam tshuam kev sib raug zoo. Lub grout sau qhov chaw annular ntawm lub hollow bar thiab phab ntsa borehole, tsim ib tug loj npaum li cas ntawm daim tawv nqaij kev sib txhuam. Yog hais tias lub grouting tsis zoo los yog muaj cov hnab tshos huab cua (voids), tus choj no tawg. Qhov tshwm sim? Cov thauj tog rau nkoj "slips," thiab cov kev txhawb nqa tsis ua haujlwm hauv qhov nro.
Hauv av tawg lossis xoob - qhov twg SDA bolts xav tau tshaj plaws - cov grout ua ntau dua li tuav lub bar. Nyob rau hauv kev txhaj tshuaj siab, cov cement slurry permeates rau hauv ib puag ncig cov kab nrib pleb thiab fissures. Cov txheej txheem no, hu ua consolidation grouting, zoo "glues" cov pob zeb fragmented ua ke. Nws tsim ib qho ntxiv "pob zeb koov" lossis ib qho chaw ruaj khov ua ntej ntawm lub qhov taub, tig qhov txaus ntshai, sib tsoo hauv av rau hauv tus kheej - txhawb nqa.
Qhov dej thiab cov dej num mining feem ntau xav tau kev pab lub neej ntawm 50 txog 100 xyoo. Hlau, los ntawm qhov xwm txheej, yog qhov yooj yim rau acidic thiab moist ib puag ncig ntawm cov dej hauv av. Cement grout muab ib tug naturalalkaline ib puag ncig (pH siab)uas tsim ib txheej passivation ntawm steel nto, tiv thaiv oxidation. A full-length, high-density grout cover is the only thing standing between your project's integrity and catastrophic structural rust.
Qhov tshwj xeeb kom zoo dua ntawm SDA system yog tias cov grout ua raws li qhov nruab nrab ntawm lub sijhawm drilling. Nws txias me ntsis thiab stabilizes lub qhov phab ntsa ntawm lub caij nyoog lub sij hawm hauv av cuam tshuam. Qhov no xyuas kom meej tias lub borehole yeej tsis muaj lub caij nyoog rau vau, guaranteeing ib100% encapsulated thauj tog rau nkojlos ntawm lub taub hau rau phaj- tej yam ib txwm ua ua ntej -drilled bolts tsuas yog ua tsis tau rau hauv cov geology nyuaj.
Qhov yuam kev 1: "Kev Ua Haujlwm" Tom Qab Dej -Cement Ratios
Txoj kev luv tshaj plaws ntawm -qhov chaw kuj yog qhov txaus ntshai tshaj plaws: ntxiv dej ntau dhau rau cov khoom sib xyaw. Kuv tau pom ntau zaus no - cov neeg ua haujlwm nyias tawm cov slurry tsuas yog ua kom lub twj tso kua mis khiav smoother lossis kom tsis txhob ntxuav cov kab. Tab sis ntawm no yog qhov tseeb:Dej tsis muaj zog; cement ua.
"Too Nyias" ntxiab (W/C> 0.5)
Yog tias koj lub qhov txhab zoo li dej kua zaub, koj tab tom thov teeb meem. Cov dej ntau dhau ua rau muaj qhov tshwm sim hu ua"los ntshav"- qhov twg cov dej sib cais ntawm cov cement thiab zaum saum. Raws li cov dej ntawd nws thiaj li evaporates los yog soaks rau hauv av, nws tawm tom qabshrinkage tawg thiab cua hnab ris.
Qhov tshwm sim:Koj poob qhov tseem ceeb "kev sib raug zoo" ntawm lub bar thiab pob zeb. Ib tug nyias nyias-tawm grout tej zaum yuav zoo li nws tau sau lub qhov, tab sis thaum nws kho, nws yog nkig thiab tag nrho ntawm microscopic voids.
Qhov "Too Thick" Struggle (W/C <0.4)
Nyob rau sab ntxeev, ua dhau "stingy" nrog dej ua rau cov dej khov heev kom nws tsis nkag mus rau qhov zoo ntawm cov pob zeb loj. Yog hais tias lub grout tsis ntws mus rau hauv cov kab nrib pleb me me, koj tsis tau sib sau ua ke hauv av; koj tsuas yog txheej bar. Ntxiv rau, koj yuav muaj peev xwm hlawv koj lub twj tso kua mis los yog txhaws lub hollow bar ib nrab ntawm qhov drilling.
Qhov "Sweet Spot" (0.4 txog 0.5)
Rau feem ntauSDA (Tus kheej -Drilling Anchor)tej yaam num, tus qauv kub yog a0.4: 1 rau 0.5: 1 ratio.
Lus Qhia:Ib qho zoo grout mix yuav tsum muaj qhov sib xws ntawmtuab hnyav creamlos yog motor oil. Nws yuav tsum tau yooj yim ntws los ntawm lub hollow bar tab sis tseem tuab txaus los dai ntawm koj tus ntiv tes yam tsis muaj dej tam sim ntawd.
Cov Lus Qhia Tshwj Xeeb:Tsis txhob cia li eyeball nws. Siv cov av nkos yooj yim los yog Marsh cone ntawm -qhov chaw los xyuas qhov ceev. Yog tias koj tau txais cov dej - cement ratio txoj cai, 80% ntawm koj cov teeb meem grouting ploj ua ntej lawv txawm pib.
yuam kev 2: Tsis txaus Grouting Siab thiab Voids.
Yuam kev : "Lub Qhov Ncauj, Yog Li Nws Tag Nrho" Myth
Ib qho ntawm qhov loj tshaj plaws rookie txav kuv pom ntawm - qhov chaw nres lub twj tso kua mis qhov thib ob grout pib tawm ntawm lub dab tshos borehole. Rau lub qhov muag uas tsis tau kawm, ib lub qhov ntxaum zoo li ua tiav txoj haujlwm. Tab sis qhov tseeb,visibility nyob rau saum npoo tsis txhais hais tias ceev ntawm lub ntsis.
Teeb meem nrog "Low Pressure"
Yog tias koj tsuas yog "kho" grout rau hauv qhov khoob khoob nrog xoom rov qab -siab, koj tsis ua ib qho kev sib tw tiag tiag. Tsis muaj siab txaus (feem ntau0.5-2.0MPa, nyob ntawm geology), lub grout tsuas yog ua raws li txoj kev ntawm qhov tsis kam.
Lub Voids:Koj yuav xaus nrogair hnab ris (voids)daig nyob rau sab saum toj ntawm lub qhov los yog tom qab threads. Cov qhov hollow no yog cov ntsiab lus tsis muaj zog qhov twg lub bar yuav nws thiaj li hloov los yog snap hauv load.
Lub siab yog rau kev nkag mus, Tsis yog qhov puv nkaus xwb
Nco ntsoov vim li cas peb siv SDA system thawj zaug: hauv av feem ntau yog tawg lossis xoob.
Lub Hom Phiaj tiag tiag:Koj xav tau lub zog los yuam kom cov cement slurry rau hauv txhua qhov plaub hau tawg thiab av pore nyob ib puag ncig bar. Qhov no yog qhov tsim qhov ntawd"bulb" effect(ib lub cev loj loj) uas ua tau "locks" lub thauj tog rau nkoj rau hauv lub roob. Yog tias koj lub ntsuas ntsuas siab (manometer) tsis txav, koj tsis txhawb hauv av; koj tsuas yog muab tus pas hlau tso rau hauv ib lub qhov loj me me xwb.
Yuav Ua Li Cas Yog
Tsis txhob cia li saib lub qhov;saib lub ntsuas.
Lus Qhia:Grouting yuav tsum txuas ntxiv mus txog thaum koj mus txog qhov"tsis kam" point-qhov no yog thaum lub siab spikes thiab hauv av tsuas tsis tuaj yeem siv slurry ntxiv.
Pro Secret:Thaum cov tuab tuab (tsis yog dej ntws thawj zaug) pib tawm ntawm lub qhov, tsis txhob nres. Khaws lub twj tso kua mis khiav rau lwm feeb lossis ob feeb kom "pob" cov grout. Qhov no ua kom tag nrho qhov ntev ntawm lub bar yog 100% encapsulated nrog xoom huab cua sib txawv.
Cov kab hauv qab:Yog tias koj tsis hnov qhov tsis kam ntawm lub twj tso kua mis, lub pob zeb yuav tsis hnov qhov kev txhawb nqa hauv lub qhov.
Qhov yuam kev 3: Lub Anatomy ntawm High -Kev Ua Haujlwm SDA System
Ntau tus neeg ua haujlwm sim txuag huab cua lossis dej los ntawm kev yaug qee zaus.yuam kev loj heev.Thaum koj tab tom drilling, kev sib xyaw ntawm pob zeb hmoov av thiab cua sov tsim ib qho nyuaj "plug" uas kaw cov chaw nres nkoj tawm ntawm koj me ntsis. Thaum lub sij hawm koj mus txog hauv qab, cov qhov yog corked kaw.
Yog tias koj tsis muaj qhov ruaj khov, siab - ntim cov kwj deg thawb cov khib nyiab tawm tag nrho lub sijhawm, koj yuav xaus nrog qhov peb hu ua"dub muag" bar. Koj tuaj yeem tso dej tawm ntawm 5.0 MPa tom qab, thiab nws tseem yuav tsis tau los ntawm qhov ntsaws ntawd.
Nco ntsoov saib qhov "rov qab" (cov khib nyiab tawm ntawm lub qhov). Yog tias qhov ntws nres los yog pib zoo li cov av nkos tuab, qhuav, nres qhov drilling tam sim ntawd thiab yaug lub qhov kom huv si ua ntej mus rau lwm nti. Lub pob zeb yog ib qho khib nyiab - nws muab xoom kev txhawb nqa rau pob zeb.
Qhov yuam kev 4: Kev txiav tawm ntxov ntawm Grouting.
Ib qho yuam kev kim tshaj plaws ntawm - qhov chaw nres lub twj tso kua mis thib ob uas koj pom cov dej ntws tawm los ntawm lub dab tshos borehole. Rau cov neeg ua haujlwm tsis muaj kev paub dhau los, lub qhov khoob khoob zoo li puv.Nyob rau hauv kev muaj tiag, nws yog feem ntau ib tug "fake" sau.
Thawj grout uas tawm hauv lub qhov feem ntau yog diluted nrog cov dej drilling los yog tov nrog cua ntxiab. Yog koj nres tam sim no, koj tawm musair hnab ris (voids)hauv lub qhov. Cov chaw khoob no yog "kev sib txuas tsis muaj zog" qhov twg lub bar yuav kawg hloov lossis xeb.
Lus Qhia:Tsis txhob cia li nrhiav grout; nrhiavsib xws. Tos kom txog thaum lub grout tawm ntawm lub qhov zoo nkaus li tuab li cov grout nkag mus. Cia lub siab rau lwm 30 mus rau 60 vib nas this kom "pob" lub qhov thiab quab yuam tawm txhua txhua npuas kawg.
Cov Lus Qhia Tshwj Xeeb:Yog tias koj tsis paub meej 100% encapsulation tam sim no, koj tsis muab kev txhawb nqa; koj tsuas yog sau ib lub qhov nrog cov kua zaub kim.
Lub Hauv Paus Kawg: Cov Khoom Siv & Koj Daim Ntawv Pov Thawj Zoo
Nws yog ib txwm xav tsis thoob thaum pom ib txoj haujlwm nqis peev ntau txhiab nyob rau hauv siab -kawg drilling rigs thiab premium thauj tog rau nkoj tuav, tsuas yog sim thiab txuag pennies ntawm cov cement. Koj tsis tuaj yeem tsim kom muaj kev txhawb nqa mus tas li ntawm lub hauv paus ntawm "kua nplaum pheej yig."
yuam kev 5: Txiav kaum ntawm Cement & Additives
Tus chij liab loj tshaj plaws ntawm -site yoglumpy los yog tas sij hawm cement. Yog tias koj qhib lub hnab thiab nws zoo li lub thawv pob zeb, nws twb tau hnov mob. Kev siv nws yog kev twv txiaj koj yuav plam- lub grout yuav tsis kho kom zoo, thiab lub zog daim ntawv cog lus yuav tsis muaj -.
Pro Xaiv:Lo rau42.5 Portland Cementlos yog siab dua.
Qhov "Secret Sauce":Tsis txhob hnov qab ibexpansion agent. Grout ib txwm shrinks thaum nws dries; ib qho me me ntawm cov tshuaj ntxiv ua kom cov grout ua tau "grips" lub pob zeb phab ntsa es tsis txhob rub tawm thaum nws hardens.
Koj daim ntawv txheeb xyuas qhov zoo (Cov npe "Tsis muaj-Fail")
Ua ntej koj hu rau txoj haujlwm ua tiav, khiav los ntawm daim ntawv teev npe sai no (los yog lub cev). Yog tias koj tsis tuaj yeem tshawb xyuas tag nrho cov thawv no, lub thauj tog rau nkoj tsis npaj:
Mix Hindiaz :Puas yog Dej -Cement ratio ntawm 0.4 thiab 0.5? (Nws puas zoo li tuab cream?)
Lub Flush:Puas muaj huab cua tsis tu ncua lossis dej thoob plaws hauv tag nrho cov txheej txheem drilling?
Rov qab los:Puas yog cov grout tawm ntawm lub qhov zoo li tuab li cov grout nkag mus?
Lub Siab:Puas yog lub twj tso kua mis ncav cuag qhov "tsis kam lees" (0.5-2.0 MPa) thiab tuav nws rau 60 vib nas this?
Kev huv huv:Puas yog cov xov ntawm lub bar ntxuav ntawm grout ua ntej lub phaj thiab txiv ntseej raug ntsia?
Cov Lus Qhia Tshwj Xeeb:Grouting tsis yog "teeb nws thiab tsis nco qab nws" txoj haujlwm. Nws yog qhov kawg 10% ntawm kev ua haujlwm uas muab 90% kev txhawb nqa. Yog tias koj ua raws li cov kauj ruam no, koj yuav muaj kev txhawb nqa uas kav ntau xyoo, tsis yog mus txog qhov ua haujlwm tom ntej.
FAQ
Q: Cov qauv thoob ntiaj teb dab tsi ua koj tus kheej -drilling bolts ua raws li?
A: Peb cov tshuab SDA (xws li R-xov thiab T- xov) yog tsim nyob rau hauv nruj raws li ISO 10208 thiab ASTM cov qauv. Peb siv siab -lub zog seamless steel tubing kom ntseeg tau tias muaj zog tensile zoo dua thiab muaj zog txaus rau kev thov cov mining thiab tunneling tej yaam num.
Q: Vim li cas SDA bolts ua haujlwm zoo dua li cov pob zeb pob zeb hauv av tawg?
A: Cov bolts ib txwm xav tau ua ntej -drilled qhov uas feem ntau tawg hauv av xoob. Lub SDA system sib txuas cov drilling, grouting, thiab anchoring rau hauv ib qho kev ua haujlwm. Qhov no tshem tawm qhov xav tau ntawm cov kav dej thiab tiv thaiv lub qhov borehole, txuag txog li 50% ntawm lub sijhawm installation.
Q: Koj cov txiv ntseej kheej kheej ua li cas tuav cov pob zeb tsis sib xws?
A: Peb precision-engineered kheej kheej txiv ntseej (dome ceev), thaum ua ke nrog domed daim hlau, tso cai rau 7 mus rau 10 degrees ntawm angular them. Qhov no ua kom ntseeg tau tias lub ntsia liaj qhov rooj tswj xyuas qhov ruaj ntseg, qhov sib npaug ntawm cov khoom xa tawm txawm tias lub ntsej muag lub ntsej muag tsis sib xws lossis tsis sib xws.
Peb qhov chaw nyob
Sab hnub poob ntawm Jianshe Street, Southwest Industrial Zone, Linmingguan Town, Handan, Hebei, Suav
Xov tooj
E -mail
zfgongkuang@aliyun.com
