Iindaba

Indima ye-geogrids ekujonganeni neziseko ezibuthathaka ibonakala ikakhulu kwiinkalo ezimbini: okokuqala, ukuphucula amandla okuthwala isiseko, ukunciphisa ukuhlaliswa, kunye nokwandisa ukuzinza kwesiseko; Okwesibini kukwandisa imfezeko kunye nokuqhubekeka komhlaba, ukulawula ngokufanelekileyo ukuhlaliswa kokungalinganiyo.
Isakhiwo se-mesh ye-geogrid inomsebenzi wokuqinisa obonakaliswa ngamandla adibeneyo kunye nokubethelela amandla phakathi kwe-geogrid mesh kunye nezinto zokuzalisa. Phantsi kwentshukumo yemithwalo ethe nkqo, i-geogrids ivelisa uxinzelelo lwe-tensile ngelixa ikwasebenzisa amandla okuthintela osecaleni emhlabeni, okukhokelela kumandla aphezulu wokucheba kunye nemodyuli yoguquko yomhlaba odibeneyo. Kwangaxeshanye, i-geogrid enwebekayo kakhulu iya kuvelisa uxinzelelo oluthe nkqo emva kokunyanzelwa, ukuthomalalisa omnye umthwalo. Ukongezelela, ukuhlaliswa komhlaba phantsi kwesenzo somthwalo othe nkqo kubangela ukunyuswa kunye nokufuduka kwecala lomhlaba kumacala omabini, okubangelwa uxinzelelo lwe-tensile kwi-geogrid kunye nokuthintela ukunyuswa okanye ukuchithwa komhlaba.

Xa isiseko sinokufumana ukungaphumeleli kwe-shear, i-geogrids iya kuthintela ukubonakala kwendawo yokungaphumeleli kwaye ngaloo ndlela iphucule amandla okuthwala isiseko. Umthamo we-geogrid eyomeleziweyo yesiseko esiyintlanganisela unokubonakaliswa ngefomula eyenziwe lula:
Pu=CNC+2TSinθ/B+βTNɡ/R
Ukudityaniswa komhlaba we-C kwifomula;
Isiseko se-NC sokuthwala amandla
T-Tensile amandla geogrid
θ – i-engile yokuthambekela phakathi kongqameko lwesiseko kunye ne-geogrid
B - Ububanzi obusezantsi besiseko
β – iShape coefficient yesiseko;
N ɡ – Isiseko esidityanisiweyo sokuthwala umthamo
R-Equivalent deformation yesiseko
Amagama amabini okugqibela kwifomula amele ukonyuka kwamandla okuthwala isiseko ngenxa yofakelo lwee-geogrids.

I-composite eyenziwe nge-geogrid kunye ne-filling material inobunzima obuhlukeneyo ukusuka kwi-ebankment kunye nesiseko esithambileyo esisezantsi, kwaye sinamandla okucheba okuqinileyo kunye nokuthembeka. I-composite yokuzaliswa kwe-geogrid ilingana neqonga lokudlulisa umthwalo, elidlulisela umthwalo we-embankment ngokwayo kwisiseko esisezantsi esithambileyo, okwenza ukuguqulwa kweyunifomu yesiseko. Ngokukodwa kwicandelo lonyango lwemfumba yokuxuba umhlaba wesamente, umthamo wokuthwala phakathi kweemfumba uyahluka, kwaye ukusetwa kwamacandelo otshintsho kwenza iqela ngalinye lemfumba lithande ukusebenza ngokuzimeleyo, kwaye kukho ukuhlaliswa kokungalingani phakathi kweelali. Ngaphantsi kwale ndlela yonyango, iqonga lokudlulisa umthwalo eliqulunqwe ngee-geogrids kunye nezizalisi zidlala indima ebalulekileyo ekulawuleni ukuhlaliswa kokungalingani.