1. Dab tsi yog qhov tseem ceeb ntawm kev txiav txim siab thaum rov kho cov txheej txheem qub qub nrog cov niaj hnub?
Retrofitting yuav tsum sib piv cov fasteners tshiab rau cov tsheb ciav hlau uas twb muaj lawm thiab pw tsaug zog qhov ntev, feem ntau siv cov adapters kho tau. Kev sib raug zoo nrog kev taug qab geometry (gauge, cant) yog qhov tseem ceeb kom tsis txhob muaj kev sib tw tsheb ciav hlau. Retrofitted systems yuav xav tau kev txhawb nqa ib ntus thaum lub sijhawm teeb tsa kom muaj kev nyab xeeb. Hauv cov cuab yeej cuab tam, cov kev xav zoo nkauj tuaj yeem txwv cov kev hloov pauv, xav tau cov tshuab hybrid uas sib xyaw ua haujlwm niaj hnub nrog cov keeb kwm yav dhau los.
2. Yuav ua li cas fastening systems rau lub teeb rail (trams) txawv ntawm hnyav rail systems?
Lub teeb rail fasteners yog compact kom haum rau hauv nroog qhov chaw (xws li, txoj kev -khiav lem) thiab feem ntau suav nrog grooved rail designs kom haum rau txoj kev tsheb. Lawv tseem ceeb txo cov suab nrov nrog cov roj hmab encapsulation thiab yooj yim rau nruab / tshem tawm rau txoj kev nkag. Hnyav rail systems siv loj dua, ruaj khov fasteners los tuav ntau dua loads, nrog rau qhov tseem ceeb ntawm lateral stability. Lub teeb rail fasteners zam ntau ntsug txav kom hloov mus rau txoj kev tsheb ciav hlau.
3. Lub luag haujlwm ntawm lub tshuab fastening ua haujlwm li cas hauv kev txo cov tsheb ciav hlau corrugation (wavy rail hnav)?
Cov tensioned fasteners kom zoo tswj cov tsheb ciav hlau tsis sib xws - pw tsaug zog sib cuag, tiv thaiv qhov tsis sib xws uas ua rau corrugation. Cov tshuab elastic nrog lub zog clamping zoo ib yam txo qis kev vibration-induced hnav, thaum lub cev tsis sib xws yuav ua rau muaj kev cuam tshuam ntau dua yog tias tsis sib xws. Fastening spacing (feem ntau yog 500-600mm) yog qhov ua kom zoo tshaj plaws los faib cov khoom thauj, nrog rau qhov sib ze dua nyob rau hauv qhov chaw muaj kev pheej hmoo siab (xws li, nkhaus nkhaus) kom txo tau cov qauv hnav.
4. Yuav ua li cas fastening systems nyob rau hauv seismic zones tiv thaiv av qeeg -induced rog?
Seismic fastening systems siv cov pob qij txha hloov tau thiab lub zog- nqus cov ntaub ntawv (xws li, roj hmab bushings) kom tawg lub zog av qeeg. Lawv tso cai rau kev tswj kev tsheb ciav hlau (txog 50 hli) yam tsis muaj detachment, siv cov slotted qhov thiab adjustable clips. Tom qab-kev tshuaj ntsuam av qeeg tshawb xyuas qhov hloov chaw, nrog ceev- kho cov yam ntxwv los kho kom haum. Nyiv lub Shinkansen siv cov tshuab zoo li no, nrog cov hlua khi uas tawg kom nqus lub zog hnyav, tiv thaiv cov ntsia hlau.
5. Dab tsi yog qhov txawv ntawm clip-hom thiab ntsia liaj qhov rooj- hom fastening systems?
Clip- hom tshuab (piv txwv li, Pandrol e-Clip) siv lub caij nplooj ntoos hlav steel clips rau kev teeb tsa ceev, zoo tagnrho rau siab - kab ceev. Lawv siv qhov nro tsis tu ncua thiab tiv taus kom loosening. Bolt- hom tshuab (piv txwv li, fishplate bolts) siv cov txiv ntseej thiab cov ntxhua khaub ncaws, muab lub peev xwm thauj khoom siab rau kev thauj khoom tab sis yuav tsum tau siv sijhawm ntau los txhim kho. Clips tseem ceeb niaj hnub kev tsheb ciav hlau vim kev ua haujlwm tau zoo, thaum lub bolts tseem nyob hauv hnyav-cov haujlwm thiab cov cuab yeej cuab tam.