Kev tiv thaiv - rub- tawm cov qauv tsim ntawm kev tsheb ciav hlau spikes thiab ntev - lub sij hawm kev cia siab ntawm kev taug kev taug kev anchorage
Dab tsi yog cov qauv tsim qauv ntawm kev tiv thaiv - rub cov qauv ntawm kev tsheb ciav hlau spikes?
Cov qauv tsim qauv tseem ceeb ntawm kev tiv thaiv - rub cov qauv ntawm kev tsheb ciav hlau spikes suav nrogbarb- hom qauv thiab xov segment composite qauv, thiab ob daim ntawv tuaj yeem siv ib leeg lossis ua ke. Lub barb- hom qauv yog los teeb 3-5 lub voj voog ntawm cov kab nrib pleb ntawm lub pob txha taub hau. Lub kaum sab xis ntawm lub barbs yog 30℃-45 degree, qhov siab yog 3-5mm, thiab qhov dav yog 5-8mm. Cov kev taw qhia ntawm cov barbs yog rov qab mus rau qhov kev taw qhia ntawm qhov ntsia hlau loj, uas tuaj yeem tiv taus lub zog rub tawm thiab tiv thaiv tus ntsia hlau loj los ntawm xoob thiab rub tawm. Cov xov segment composite qauv yog teem ib coarse xov ntu nrog ib tug ntev ntawm 50-80mm nyob rau hauv qis ib feem ntawm lub spike. Cov xov profile yog daim duab peb sab nrog lub qhov siab ntawm 4-6mm. Qhov chaw sib txuas ntawm cov xov ntu thiab cov pob zeb pob zeb pob zeb yog 40% -50% loj dua li ntawm cov shank spikes, txhim kho lub zog anchoring. Cov qauv sib xyaw ua ke yog los teeb tsa ob qho tib si barbs thiab xov ntu ntawm lub ntsej muag shank, nrog cov barbs saum cov xov ntu. Ob leeg ua haujlwm sib koom ua ke, thiab kev rub tawm yog 30% -40% siab dua li ntawm cov qauv ib leeg, haum rau cov kab hnyav thiab kev kub ceev.
Dab tsi yog qhov sib txawv ntawm qhov kev ua tau zoo ntawm kev tiv thaiv - rub cov qauv spikes thiab spikes zoo tib yam?
Qhov kev sib txawv ntawm qhov sib txawv ntawm kev tiv thaiv - rub cov qauv spikes thiab cov spikes zoo tib yam yog qhov tseem ceeb hauv peb yam:rub tsis kam, tiv thaiv -loosing peev xwm thiab kav ntev. Kev rub tawm ntawm kev tiv thaiv kev tiv thaiv - rub cov qauv spikes tuaj yeem ncav cuag 80-100kN, uas yog 2-3 npaug ntawm cov spikes zoo tib yam, thiab tuaj yeem tiv thaiv lub zog rub tawm los ntawm cov tsheb ciav hlau sab nraud; qhov rub tsis kam ntawm cov spikes zoo tib yam tsuas yog 30-40kN, uas yog nquag rub- tawm tsis ua hauj lwm hauv hnyav- cov kab. Kev tiv thaiv -loosing peev xwm ntawm kev tiv thaiv rub cov qauv spikes yog qhov muaj zog, thiab qhov kev quab yuam kev poob qis tsawg dua los yog sib npaug li 5% hauv qab 1 × 10⁶ kev co loads; lub zog quab yuam poob ntawm qhov zoo tib yam spikes tuaj yeem ncav cuag 20% -30%, yuav tsum tau ua kom rov zoo dua. Nyob rau hauv cov nqe lus ntawm durability, kev pab cuam lub neej ntawm anti-rub spikes muaj peev xwm ncav cuag ntau tshaj 15 xyoo, thaum uas zoo tib yam spikes tsuas yog 5-8 xyoo, yuav tsum tau hloov tsis tu ncua. Tsis tas li ntawd, cov qauv tiv thaiv rub tawm spikes muaj qhov hloov tau zoo dua rau lub txaj ballast pob zeb, thiab yuav tsis ua rau pob zeb tawg vim muaj zog anchoring ntau dhau.
Dab tsi yog qhov yuav tsum tau hloov ntawm kev tiv thaiv - rub cov qauv spikes rau ntau hom ballast txaj?
Cov kev hloov pauv ntawm kev tiv thaiv - rub cov qauv spikes rau ntau hom ballast txaj yog qhov tseem ceeb rautxuam qhov nruj ntawm lub txaj ballast thiab cov yam ntxwv ntawm qhov nruab nrab anchoring. Cov pob zeb sib xyaw ua ke muaj lub siab tawv thiab muaj zog ua vaj tse siab (siab dua C50), thiab tau yoog rauua ke los tiv thaiv- rub cov qauv spikesnrog 5 lub voj voog ntawm barbs, ib txoj xov ntev ntawm 80mm, thiab rub tsis kam Ntau dua los yog sib npaug rau 100kN kom tau raws li cov kev xav tau ntawm kev siab - cov kab ceev. Anchoring nruab nrab ntawm lub slab ballast txaj yog resin mortar nrog siab sib txuas lub zog, thiab tau yoog rauthread segment composite structure spikesnrog ib tug xov ntu ntev ntawm 60 hli thiab tus hniav qhov siab ntawm 5 hli. Tsis xav tau barbs kom tsis txhob ua puas lub slab qauv. Cov pw tsaug zog ntawm cov pob zeb crushed ballast txaj yog cov pob zeb uas muaj qhov txwv qhov tob tob, thiab tau yoog raubarb- hom qauv spikesnrog 3 lub voj voog ntawm barbs thiab barb qhov siab ntawm 3mm los xyuas kom meej tias cov sleepers tsis puas thaum lub spikes raug tso. Qhov nruj ntawm qhov kev hloov pauv ntawm lub txaj ballast hloov pauv tau zoo heev, thiab yoog rawsadjustable tiv thaiv - rub tus qauv spikes, uas tuaj yeem kho qhov siab zoo ntawm cov barbs raws li lub txaj pw tsaug zog kom muaj zog ruaj khov.
Dab tsi yog cov ntsiab lus tseem ceeb ntawm kev ua haujlwm ntawm kev tiv thaiv - rub cov qauv spikes?
Cov ntsiab lus thev naus laus zis tseem ceeb ntawm kev tiv thaiv - rub cov qauv spikes yog tsom rau hauv ob qhov txuas:tsim qhov tseeb ntawm barbs thiab threads thiab kev kho cua sovkom ruaj khov kev ua tau zoo. Lub barb forming txais cov txheej txheem txias extrusion, thiab qhov precision ntawm extrusion tuag yuav tsum ncav cuag ± 0.05mm los xyuas kom meej tias qhov sib txawv ntawm barb lub kaum sab xis, qhov siab thiab dav yog tsawg dua los yog sib npaug rau ± 0.1mm, tsis txhob barb deformation cuam tshuam cov nyhuv anchoring. Cov xov ntu ua haujlwm txais cov txheej txheem xov dov, thiab cov xov dov siab yog tswj ntawm 80-100MPa kom paub meej cov xov tag nrho tsis muaj qhov tsis xws luag, thiab cov xov precision ncav cuag qib 6g. Kev kho cua sov siv ib qho quenching thiab tempering kev kho mob, quenching kub yog 830-860 degree, thiab tempering kub yog 400-430 degree, thiaj li hais tias lub hardness ntawm spike shank ncav cuag HRC35-40, thiab hardness ntawm barb thiab xov qhov chaw mus txog HRC45-50 zog thiab ughbal. Tom qab ua tiav, kev ntsuas rub yuav tsum tau ua, thiab rub tawm ntawm cov qauv spikes yuav tsum ncav cuag ntau dua 100% ntawm tus nqi tsim.
Dab tsi yog qhov tseem ceeb ntawm -site anchoring tsim cov ntsiab lus ntawm kev tiv thaiv - rub cov qauv spikes?
Tus yuam sij ntawm -site anchoring tsim cov ntsiab lus ntawm kev tiv thaiv- rub cov qauv spikes yuav tsum tau tsom mus rauanchoring qhov sib sau thiab spike insertion txheej txheemlos xyuas kom meej anchoring kev ntseeg tau. Lub anchoring qhov tsim tau txais ib lub tshuab tshwj xeeb drilling, qhov drilling txoj kab uas hla yog 2-3mm loj dua li txoj kab uas hla ntawm cov ntsia hlau loj, thiab qhov tob drilling yog 10{12}}15mm tob dua li qhov tsim anchoring qhov tob ntawm qhov ntsia hlau loj los xyuas kom meej qhov chaw nres nkoj txaus tom qab cov ntsia hlau loj tau ntxig. Tom qab drilling, nws yog ib qho tsim nyog los ntxuav cov pob zeb khib nyiab thiab plua plav hauv lub qhov nrog rab phom cua siab, tom qab ntawd txhaj tus neeg sawv cev, qhov ntim ntawm tus neeg sawv cev yog 80% -90% ntawm lub qhov ntim, tsis txhob cuam tshuam cov kab nrib pleb vim muaj ntau dhau. Cov ntsia hlau loj yuav tsum tau muab tso rau ntsug, thiab qhov ntxig nrawm yog tswj ntawm 50-100mm / min kom ntseeg tau tias cov barbs thiab xov ntu tau tag nrho ua ke nrog tus neeg sawv cev anchoring. Tom qab kev ntxig, kev kho zoo li qub yog xav tau rau ntau dua lossis sib npaug li 24 teev, thiab cov khoom siv tuaj yeem siv tau tom qab tus neeg sawv cev anchoring tau kho tag nrho. Tom qab kev tsim kho, rub tawm cov qauv kuaj xyuas yuav tsum tau ua nrog qhov piv txwv ntawm 5% ib pawg, thiab rub tawm yuav tsum ua raws li cov qauv tsim.