Xov xwm

Lub luag haujlwm ntawm geogrids hauv kev cuam tshuam nrog lub hauv paus tsis muaj zog yog qhov tseem ceeb hauv ob yam: ua ntej, kev txhim kho cov kabmob muaj peev xwm ntawm lub hauv paus, txo qhov kev sib haum xeeb, thiab ua kom lub hauv paus ruaj khov; Qhov thib ob yog txhawm rau txhim kho kev ncaj ncees thiab txuas ntxiv ntawm cov av, zoo tswj kev sib haum xeeb tsis sib xws.
Cov qauv mesh ntawm geogrid muaj kev txhawb nqa kev ua tau zoo uas tau tshwm sim los ntawm kev sib cuam tshuam quab yuam thiab embedding quab yuam ntawm geogrid mesh thiab cov khoom ntim. Nyob rau hauv qhov kev txiav txim ntawm ntsug loads, geogrids tsim tensile kev nyuaj siab thaum tseem exerting ib tug lateral restraining quab yuam ntawm cov av, uas ua rau lub siab shear zog thiab deformation modulus ntawm cov av sib xyaw. Nyob rau tib lub sijhawm, cov geogrid siab heev yuav ua rau muaj kev ntxhov siab ntsug tom qab raug quab yuam, offsetting ib co ntawm cov load. Tsis tas li ntawd, kev sib haum xeeb ntawm cov av nyob rau hauv qhov kev txiav txim ntawm ntsug load ua rau lub uplift thiab lateral txav ntawm cov av ntawm ob sab, uas ua rau tensile kev nyuaj siab nyob rau hauv lub geogrid thiab tiv thaiv lub uplift los yog lateral txav ntawm cov av.

Thaum lub hauv paus yuav ntsib kev tsis ua haujlwm, geogrids yuav tiv thaiv qhov tshwm sim ntawm qhov tsis ua haujlwm saum npoo thiab yog li txhim kho lub peev xwm ntawm lub hauv paus. Lub peev xwm ntawm geogrid reinforced composite foundation tuaj yeem qhia tau los ntawm cov qauv yooj yim:
Pu=CNC+2TSinθ/B+βTNɡ/R
Lub cohesion ntawm C-av nyob rau hauv tus qauv;
NC Foundation bearing muaj peev xwm
T-Tensile zog ntawm geogrid
θ - inclination lub kaum sab xis ntawm lub hauv paus ntug thiab geogrid
B - Hauv qab dav ntawm lub hauv paus
β - Cov duab coefficient ntawm lub hauv paus;
N ɡ – Composite foundation bearing muaj peev xwm
R-Sib npaug deformation ntawm lub hauv paus
Ob nqe lus kawg hauv cov qauv qhia txog kev muaj peev xwm ntawm lub hauv paus vim kev teeb tsa ntawm geogrids.

Cov khoom sib xyaw ua ke ntawm geogrid thiab cov khoom ntim khoom muaj qhov sib txawv ntawm cov embankment thiab qis dua lub hauv paus, thiab muaj zog shear zog thiab kev ncaj ncees. Lub geogrid filling composite yog sib npaug rau lub load hloov platform, uas hloov lub load ntawm lub embankment nws tus kheej mus rau lub hauv paus qis, ua rau lub deformation ntawm lub hauv paus uniform. Tshwj xeeb tshaj yog rau qhov sib sib zog nqus cement av sib xyaw ua ke ntawm pawg kho, cov kabmob muaj peev xwm ntawm pawg sib txawv, thiab kev teeb tsa ntawm kev hloov pauv ua rau txhua pawg pawg nyiam ua haujlwm ntawm nws tus kheej, thiab tseem muaj kev sib haum xeeb ntawm cov zos. Nyob rau hauv txoj kev kho no, lub load hloov platform tsim los ntawm geogrids thiab fillers plays lub luag haujlwm tseem ceeb hauv kev tswj tsis sib xws.