1. Dab tsi ua rau kev tsheb ciav hlau sib koom ua tsis tiav?
Primary tsis ua hauj lwm mechanisms:
Fishbolt qaug zog(55% ntawm cov neeg mob)
Bar tawg (30%)
Insulator degradation (15%)
Cov pob qij txha niaj hnub tam sim no siv preloaded kev sib txhuam bolts es tsis txhob siv cov ntses bolts.
2. Txoj kev tsheb ciav hlau hloov tau li cas rau thaj tsam permafrost?
Cov kev daws teeb meem Permafrost suav nrog:
Thermosyphons kom ruaj khov hauv av
Elevated taug qab cov qauv
Tsawg- conductivity ballast
Lub caij ntuj no-tsuas yog txwv ceev
Thaw kev daws teeb meem tuaj yeem tshaj 300mm txhua xyoo yam tsis muaj kev txo qis.
3. Cov txheej txheem kev sim rau cov khoom siv tsheb ciav hlau tshiab yog dab tsi?
Kev xeem txuj ci suav nrog:
Rolling kev qaug zog(1 lab lub voj voog)
Impact toughness (>27J ntawm -40 degree)
Corrosion kuj(1000hr ntsev tsuag)
Hnav tus nqi(mg / cm³ rau MGT)
4. Yuav ua li cas koj xam rail hnav ntim ntim?
Wear volume formula:
V = k·(N·F·L)/(H·R)
Qhov twg: k=Hnav coefficient N=Log hla F=Sib cuag quab yuam L=Sliding nrug H=Khoom hardness R=nkhaus vojvoog
Kev coj tus nqi ntau ntawm 0.05-0.3mm³ / MGT.
5. Cov kev tshuaj xyuas kev tsheb ciav hlau tshiab yog dab tsi?
Txiav - txoj hauv kev:
Phaseed array ultrasonics(3D teeb pom kev zoo)
Terahertz scanning(Kev kuaj pom qhov tsis xws luag)
Autonomous dronesnrog LiDAR
Fiber-Kev ntsuas qhov muag pom(kev saib xyuas tsis tu ncua)