Indima yama-geogrid ekubhekaneni nezisekelo ezibuthakathaka ibonakala ngokuyinhloko ezicini ezimbili: okokuqala, ukuthuthukisa amandla okuthwala isisekelo, ukunciphisa ukuhlaliswa, nokwandisa ukuzinza kwesisekelo; Okwesibili ukuthuthukisa ubuqotho nokuqhubeka kwenhlabathi, ukulawula ngempumelelo ukuhlaliswa okungalingani.
Isakhiwo semeshi ye-geogrid sinokusebenza okuqinisayo okubonakala ngamandla ahlanganayo namandla okushumeka phakathi kwe-geogrid mesh nokokusebenza kokugcwalisa. Ngaphansi kwesenzo semithwalo eqondile, ama-geogrid akhiqiza ukucindezelwa okuqinile kuyilapho esebenzisa amandla okuvimbela uhlangothi emhlabathini, okuholela ekubeni namandla okugunda okuphezulu kanye ne-deformation modulus yenhlabathi eyinhlanganisela. Ngesikhathi esifanayo, i-geogrid enwebeka kakhulu izokhiqiza ingcindezi eqondile ngemuva kokuphoqwa, isuse omunye womthwalo. Ngaphezu kwalokho, ukuhlaliswa kwenhlabathi ngaphansi kwesenzo somthwalo oqondile kubangela ukukhushulwa nokususwa kwenhlabathi ezinhlangothini zombili, okuholela ekucindezelekeni okuqinile ku-geogrid futhi kuvimbele ukukhushulwa noma ukugudluzwa kwe-lateral kwenhlabathi.
Lapho isisekelo singase sibhekane nokuhluleka kwe-shear, ama-geogrids azovimbela ukubonakala kwendawo yokuhluleka futhi ngaleyo ndlela athuthukise umthamo wokuthwala wesisekelo. Umthamo wokuthwala wesisekelo esiyinhlanganisela esiqinisiwe se-geogrid singavezwa ngefomula eyenziwe lula:
I-Pu=CNC+2TSinθ/B+βTNɡ/R
Ukuhlangana kwenhlabathi C kufomula;
I-NC Foundation ithwala umthamo
Amandla we-T-Tensile we-geogrid
θ – i-engeli yokuthambekela phakathi konqenqema lwesisekelo kanye ne-geogrid
B - Ububanzi obuphansi besisekelo
β - Ukwakheka kwe-coefficient yesisekelo;
N ɡ - Isisekelo esiyinhlanganisela amandla okuzala
R-Equivalent deformation of foundation
Amatemu amabili okugcina kufomula amele ukukhushulwa komthamo wesisekelo ngenxa yokufakwa kwama-geogrid.
Inhlanganisela eyakhiwe nge-geogrid kanye nezinto zokugcwalisa inokuqina okuhlukile kusukela konqenqema kanye nesisekelo esithambile esiphansi, futhi inamandla okugunda okuqinile nobuqotho. Inhlanganisela yokugcwalisa i-geogrid ilingana neplathifomu yokudlulisa umthwalo, edlulisela umthwalo we-embankment ngokwayo kusisekelo esithambile esiphansi, okwenza ukuguqulwa komfaniswano wesisekelo. Ikakhulukazi engxenyeni yokwelapha inqwaba yenqwaba yomhlaba kasimende ejulile, umthamo wokuthwala phakathi kwezinqwaba uyahlukahluka, futhi ukumiswa kwezigaba zoshintsho kwenza iqembu ngalinye lenqwaba lithambekele ekusebenzeni ngokuzimela, futhi kukhona nokuhlalisana okungalingani phakathi kwamadolobhana. Ngaphansi kwale ndlela yokwelapha, inkundla yokudluliswa komthwalo eyakhiwe ama-geogrid nama-filler idlala indima ebaluleke kakhulu ekulawuleni ukuxazululwa ngokungalingani.
Isikhathi sokuthumela: Nov-08-2024