Caij nplooj ntoos hlav hom dej hauv av dej hose mos permeable yeeb nkab
Kev Piav Qhia Luv:
Cov yeeb nkab mos uas nkag tau yog ib lub tshuab raj siv rau kev ntws dej thiab sau dej nag, tseem hu ua lub tshuab dej ntws dej lossis lub tshuab sau dej. Nws yog ua los ntawm cov khoom mos, feem ntau yog cov polymers lossis cov khoom siv fiber ntau, nrog rau kev nkag tau dej siab. Lub luag haujlwm tseem ceeb ntawm cov yeeb nkab mos uas nkag tau yog sau thiab ntws dej nag, tiv thaiv kev sib sau thiab khaws dej, thiab txo cov dej saum npoo av thiab qib dej hauv av nce siab. Nws feem ntau siv rau hauv cov tshuab dej nag, cov tshuab dej ntws ntawm txoj kev, cov tshuab ua kom zoo nkauj, thiab lwm yam haujlwm engineering.
Cov Khoom Piav Qhia
Cov kav dej mos uas nkag tau siv cov xwm txheej "capillary" thiab lub hauv paus ntsiab lus "siphon" los koom ua ke kev nqus dej, kev nkag tau, thiab kev ntws tawm. Nws cov nyhuv permeability tag nrho ua rau tag nrho cov kav dej lub cev ua los ntawm cov khoom permeable, nrog thaj chaw loj permeable. Tib lub sijhawm, lub zog lim dej muaj zog tuaj yeem lim tawm ntau yam pob zeb me me, av nplaum, xuab zeb me me, cov khoom me me, thiab lwm yam.
Cov yam ntxwv ntawm cov khoom
1. Kev Nkag Tau: Phab ntsa ntawm cov yeeb nkab mos mos muaj qee qhov porosity, uas tuaj yeem txhawb kev nkag mus rau hauv dej thiab ntws tawm, txhim kho kev nkag mus rau hauv av, txo cov av compaction thiab khaws dej.
2. Kev Yooj Yim: Cov kav dej mos mos yog ua los ntawm cov khoom mos, uas muaj kev ywj pheej zoo thiab kev ua haujlwm khoov, thiab tuaj yeem hloov kho rau cov kev xav tau engineering ntawm ntau yam duab thiab cov av nyuaj.
3. Kev Ruaj Khov: Cov kav dej uas yooj ywm tau feem ntau yog ua los ntawm cov polymer lossis cov khoom siv fiber ntau uas tiv taus huab cua zoo, uas muaj kev ruaj khov zoo thiab tiv thaiv kev laus thiab siv tau ntev.
4. Kev ua haujlwm compressive: Cov kav dej mos permeable muaj qee qhov peev xwm compressive, tuaj yeem tiv taus qee qhov loads, thiab tswj cov duab thiab kev ua haujlwm ntawm cov kav dej.
5. Kev tiv thaiv ib puag ncig thiab kev txuag hluav taws xob: Cov kav dej mos mos tuaj yeem sau thiab siv cov peev txheej dej nag, txo qhov hnyav ntawm cov txheej txheem dej ntws hauv nroog, thiab ua tiav kev siv dua thiab kev txuag dej nag.
6. Kev tsim kho yooj yim: Cov kav dej mos mos thiab yooj yim khoov, ua rau kev tsim kho yooj yim thiab tuaj yeem hloov kho rau cov kev xav tau ntawm kev tsim kho ntawm ntau yam duab thiab thaj chaw nyuaj.
7. Kev saib xyuas yooj yim: Kev saib xyuas cov kav dej mos mos yooj yim heev, feem ntau tsuas yog xav tau kev ntxuav thiab tshuaj xyuas tas li, nrog rau cov nqi kho qis dua.
