Txhim kho Anchorage Strength ntawm Rail Spikes thiab Differentiated Anchorage Technology
Dab tsi yog cov txheej txheem tseem ceeb thiab cov qauv zoo rau kev sib txuas ntawm cov pob zeb ua vaj tse?
Thaum cov txheej txheem sulfur anchoring yog siv rau spikes ntawm qhob sleepers, lub zog compressive ntawm cov mortar mortar yuav tsum muaj ntau tshaj los yog sib npaug zos rau 50MPa thiab lub tensile lub zog ntau tshaj los yog sib npaug zos rau 5MPa los xyuas kom meej kev ruaj ntseg ntawm cov mortar, spikes thiab sleepers. Lub rub- tawm quab yuam ntawm spikes yuav tsum siab dua los yog sib npaug rau 80kN thiab lub zog shear Ntau dua los yog sib npaug rau 60kN kom tau raws li qhov yuav tsum tau ua ntawm siab - txoj kev tsheb ciav hlau ceev thiab hnyav - cov kab tsheb. Qhov tob anching yuav tsum tswj ntawm 150-180mm. Qhov tob tsis txaus yuav txo lub zog anchoring, thaum qhov tob tob yuav ua rau cov ntaub ntawv pov tseg thiab cuam tshuam rau kev tsim kho. Lub verticality sib txawv ntawm spikes Tsawg dua los yog sib npaug rau ± 1℃kom ntseeg tau tias muaj kev ntxhov siab ntawm spikes. Kev xav ntau dhau yuav ua rau muaj kev ntxhov siab hauv zos. Tom qab anchoring tiav lawm, kev sim rub tawm yuav tsum tau ua, piv txwv ntau dua lossis sib npaug rau 3 spikes ib 1000 spikes. Cov khoom siv tsis tsim nyog yuav tsum tau rov ua haujlwm tag nrho, thiab tsis tsim nyog spikes yog nruj me ntsis txwv tsis pub muab tso rau hauv kev siv.
Dab tsi yog cov txheej txheem sib txawv thiab kev ntsuas kev txhawb nqa rau kev sib tsoo ntawm cov ntoo pw?
Cov txheej txheem tsav tsheb thauj khoom yog siv rau spikes ntawm ntoo sleepers. Taw tes ntsia hlau spikes raug xaiv, thiab cov kab uas muab kauv tuaj yeem txhim kho lub zog tom nrog ntoo kom tiv thaiv kev sib tsoo. Kev tsav tsheb qhov tob ntawm spikes yuav tsum siab dua lossis sib npaug li 120mm. Ua ntej tsav tsheb, qhov yuav tsum tau tho rau ntawm cov neeg pw tsaug zog, nrog lub qhov taub 1 hli me dua li txoj kab uas hla, siv lub elasticity ntawm ntoo los clamp cov spikes. Rau cov qub ntoo pw tsaug zog, anti-corrosion kua nplaum yuav tsum tau txhaj rau hauv lub qhov los txhim kho lub zog anchoring thiab tiv thaiv cov ntoo lwj, txuas ntxiv lub neej ntawm cov neeg pw tsaug zog. Tom qab tsav cov spikes, tiv thaiv - rub gaskets nrog lub thickness Ntau dua los yog sib npaug li 3 hli yuav tsum tau muab ntsia rau saum toj kom nce qhov kev ntxhov siab thiab txhim kho qhov kev tiv thaiv - rub kev ua tau zoo ntawm cov spikes. Kev saib xyuas lub voj voog ntawm cov ntoo pw tsaug zog yuav tsum tau luv luv mus rau ib zaug txhua 3 lub hlis txhawm rau txheeb xyuas qhov ua kom xoob xoob. Loose spikes yuav tsum tau redriven los yog hloov sleepers.
Dab tsi yog cov khoom siv optimization tswv yim rau kev txhim kho spike anchoring zog?
Nano-calcium carbonate additives tuaj yeem muab ntxiv rau sulfur anchoring mortar ntawm qhov ntau npaum li 3% ntawm cov cement loj, uas tuaj yeem ua kom lub zog compressive ntawm mortar los ntawm 15% thiab lub zog tensile los ntawm 20%, txhim kho cov nyhuv anchoring. Resin anchoring agents yog siv los hloov cov tshuaj sulfur mortar. Lub sij hawm curing ntawm resin anchoring agents tsawg dua los yog sib npaug li 30 feeb, lub rub- tawm quab yuam yog ntau dua los yog sib npaug rau 90kN, thiab kev tiv thaiv- kev laus ua tau zoo heev, haum rau alpine thiab siab{10}} thaj tsam av noo. Spike cov ntaub ntawv yog 20MnTiB alloy steel, nrog lub zog tensile Ntau dua los yog sib npaug rau 900MPa tom qab quenching thiab tempering. Qhov saum npoo yog carburized nrog lub hardness Ntau dua los yog sib npaug rau 50HRC, txhim kho cov hnav tsis kam thiab corrosion kuj ntawm spikes. Anchoring lub tes tsho yog ua los ntawm siab- cov khoom siv nylon muaj zog, nrog cov kab xov ntawm cov phab ntsa sab hauv ntawm lub tes tsho los txhim kho lub zog tom nrog spikes thiab mortar, tiv thaiv lub tes tsho los ntawm kev sib cais ntawm cov spikes. Tom qab kev txhim kho cov khoom siv, kev sib piv yuav tsum tau ua kom paub tseeb tias qhov kev txhim kho ntawm lub zog ruaj khov, kom ntseeg tau tias nws ua tau raws li qhov xav tau ntawm engineering.
Dab tsi yog qhov kev tiv thaiv - khov- thaw kev ntsuas rau kev sib tsoo nkig hauv thaj tsam alpine?
Anti- khov-thaw resin anchoring agents yuav tsum raug xaiv rau kev sib tsoo rau hauv cheeb tsam alpine. Tus neeg sawv cev thauj khoom no tuaj yeem tswj xyuas qhov kev ua tau zoo ntawm qhov kub qis ntawm -40 degree, tiv taus ntau dua lossis sib npaug rau 300 khov-thaw cycles yam tsis muaj tawg. Huab cua-entraining agents raug ntxiv rau hauv cov tshuaj khib nyiab, nrog rau cov ntsiab lus huab cua tswj ntawm 3%-5%, tsim cov npuas me me kom tsis txhob muaj cua sov hnyav thiab tiv thaiv mortar khov thiab tawg. Tom qab spike anchoring tiav lawm, qhov chaw anchoring yog qhwv nrog thermal rwb thaiv tsev paj rwb nrog lub thickness Ntau dua los yog sib npaug li 50mm kom txo tau qhov cuam tshuam ntawm qhov kub thiab txias ntawm anchoring zog. Kev ntsuas hluav taws xob rwb thaiv tsev yuav tsum tau ua thaum lub caij ntuj no tsim kho kom ntseeg tau tias qhov kub thiab txias ntawm tus neeg sawv cev anchoring yog siab dua lossis sib npaug li 5 degree. Qhov saum npoo ntawm spikes yog kho nrog kub-dip galvanizing + passivation, nrog txheej thickness Ntau dua los yog sib npaug rau 85μm, txhim kho corrosion kuj ntawm spikes thiab tiv thaiv xeb nyob rau hauv qis - kub thiab av noo ib puag ncig. Lub zog anching ntawm spikes yuav tsum tau rov kuaj dua txhua lub caij ntuj no. Thaum lub zog rub tawm poob qis dua los yog sib npaug li 10%, rov ua dua tshiab yuav tsum tau ua kom muaj kev nyab xeeb ntawm kev tsav tsheb thaum lub caij ntuj no.
Dab tsi yog txoj hauv kev tshawb nrhiav thiab ntawm - cov qauv kev lees paub ntawm qhov chaw rau qhov zoo ntawm kev sib tw?
Kev rub- tawm kev tshawb pom ntawm qhov zoo ntawm qhov zoo ntawm qhov zoo siv cov duab digital rub- tawm lub tshuab kuaj, nrog rau kev thauj khoom ceev tswj ntawm 5kN / min. Dhau qhov kev xeem txhais tau hais tias lub rub- tawm quab yuam mus txog tus nqi tus qauv thiab qhov chaw nres tsheb tsis muaj kev puas tsuaj. Shear detection siv lub tshuab kuaj shear, thauj khoom kom txog rau thaum lub pob zeb loj lossis qhov chaw nres tsheb puas, sau cov kev txiav txim siab tshaj plaws, Ntau dua lossis sib npaug li 60kN yog suav tias yog tus qauv. Kev soj ntsuam pom yuav tsum xyuas qhov inclination ntawm spikes thiab cracking ntawm anchoring mortar. Ib qho inclination ＞ 1℃los yog mortar tawg dav Ntau dua los yog sib npaug rau 0.2 hli yog suav tias tsis tsim nyog. Ntawm - qhov chaw txais yuav tsum ua raws li lub hauv paus ntsiab lus ntawm "sampling txhua tus neeg pw tsaug zog", sampling Ntau dua los yog sib npaug rau 50 spikes ib kilometer rau siab -cov kab tsheb ciav hlau ceev thiab Ntau dua lossis sib npaug li 30 spikes ib mais rau cov kab tsheb ciav hlau zoo tib yam. Qhov kev tsim nyog tau txais txiaj ntsig ntau dua lossis sib npaug li 98% yog suav tias tsim nyog. Tom qab dhau qhov kev lees paub, yuav tsum tau tshaj tawm tsab ntawv tshaj tawm, qhia txog tus lej ntawm kev xeem, tus nqi tsim nyog thiab kev kho mob rau qhov tsis tsim nyog, ua lub hauv paus rau qhov kev lees paub.