i-CPT

Ithuluzi le-Cone Penetration Testing (CPT) lidlala indima ebalulekile emkhakheni wokwakha izisekelo ezijulile kanye nezehlakalo ze-geotechnical, lunikeza idatha ebalulekile yokuhlola izindawo nokuphrofayela umhlaba. Le ndlela eyinkimbinkimbi ibandakanya ukusetshenziswa kwe-cone penetrometer, okuyithuluzi elinokuthinta okubunjwe njenge-cone okuhunyushwa phansi emhlabeni ngezinga eliqinile. Njengoba i-cone ihamba emhlabathini, ikala ukumelana kokuthinta nokuphazamiseka eceleni, ikhiqiza ukuqonda okubalulekile kokuhlukaniswa komhlaba, ubukhulu, nokuqina. Idatha eqoqwe phakathi kwe-CPT ihlinzeka onjiniyela kanye nezichwepheshe ze-geotechnical ngemininingwane ebalulekile edingeka ukuze kuhlelwe izisekelo ezijulile, kuthuthukiswe imiklamo ye-pile, futhi kuhlolwe ukuzinza kwezinyuko kanye nezikhukhula. Ukusebenza kwezithuthi ze-CPT kulula ukufinyelela kepha kukhulu kakhulu ukusebenza. I-penetrometer ngokuvamile idonswa phansi kusetshenziswa uhlelo lwe-hydraulic, oluqinisekisa ukulawula ukunembile phezu kwenkambo yokuhamba, evamile ukusethwa ku-2 cm ngomzuzu. Le nhlangano elawulwayo ivumela ukufundwa okunembile kokumelana kokuthinta nokuphazamiseka, okuvumela ukudalwa kwephrofayili yomhlaba efanele. Amathuluzi e-CPT anamuhla ngokuvamile ahlinzekwa ngezinhlelo ze-data logging ezithuthukisiwe ezithuthukisa ukuqoqa idatha ku-inthanethi ngesikhathi sangempela, kuthuthukisa ukwethembeka kwemiphumela etholwa. Le teknoloji ayikhulisi kuphela inqubo yokuhlola kepha futhi ithuthukisa ukusebenza kahle kokuhlola kweze-geotechnical. Ngokwezinhlelo zokusebenza ezisemkhakheni wezisekelo ezijulile kanye nemisebenzi ye-geotechnical, i-CPT ibalulekile ezimeni eziningi. Isetshenziswa kabanzi ezihlolweni zomhlaba eziphezulu ngaphambi kokwakhiwa, helping onjiniyela bahlola izimo zomhlaba ngaphambi kokuklama nokufaka izinhlelo ze-piling. Ngaphezu kwalokho, i-CPT ibalulekile ekutholeni amandla okuthwala komhlaba, ukuhlola amathuba okuvuthwa ngesikhathi sezenzakalo ze-seismic, nokuhola izindlela zokuthuthukisa umhlaba. Lezi zimo zenza i-CPT ibe ithuluzi elingabalulekile kumaphrojekthi ahl ranging from izisekelo zokwakha kanye nezikhalazo kuya kumathebhu kanye nezakhiwo ezibambekayo. Izincazelo ezivamile zamathuluzi e-CPT zihluka kuye nge-rig nesimo, kodwa ngokujwayelekile, i-cone penetrometer ejwayelekile inekhono elilinganiselwa ku-35.7 mm nokuwa okuyi-150 mm. Uhlelo lulungiselelwe ukusebenza kahle ezimweni ezahlukene zomhlaba, kuhlanganise nokubumba kanye nezinto ezingezona ezibumbene. Uma kukhethwa amathuluzi e-CPT, kufanele kubhekwe imiqondo eminingana, kuhlanganise nezinga elidingekayo lokuhamba kokuthinta, izimo zomhlaba endaweni, kanye nedatha ethile edingekayo ukuze kuhlolwe. Izinto ezifana nokuhamba, lula kokwakhiwa, nezikhono zokuhola idatha nazo zidlala indima ebalulekile ekuqinisekiseni ukuthi amathuluzi akhethiwe ahlangabezana nezidingo zephrojekthi ngempumelelo. Kubachwepheshe emikhakheni yezisekelo ezijulile kanye nezehlakalo ze-geotechnical, ukutshalwa kwezimali noma ukuqasha amathuluzi e-CPT anekhwalithi ephezulu kubalulekile ukuze kutholakale idatha ye-geotechnical enembile. Ngokusebenzisa ubuchwepheshe besimanje bokuhlola i-cone penetration, onjiniyela be-geotechnical bangathuthukisa ukwethembeka kwamaphrojekthi abo, okuholela ezinqubweni zokwakha eziwusizo nezisebenza kahle. Nokho umphakathi wezimo ezikhethiwe noma izilinganiso zendawo ezijwayelekile, amathuluzi e-CPT asaqhubeka nokuba isisekelo sokuqhuba kwamanje kweze-geotechnical.