Izibukeli Ezikhethekile Zesiteshi

Iziqondiso zokuhlola ezikhethekile zokwakhiwa kwemigudu ziwuhlelo olukhuluma ngokuqonda kokusebenza nokwakheka kwezinsika ze-jet grouting, imijiggwa yaphansi, kanye nezithiyo zokuphazamisa ngesikhathi sokwakhiwa kwemigudu nezokuthuthukiswa komhlaba. Ekubhaliseni izisekelo ezengeziwe, lezi zikhombisi zisebenza njengezinto ezibalulekile ngokuhlinzeka ngemininingwane yesikhathi sangempela mayelana nokusebenza kwegrouting, ukusathelwa kwezinto, ukuphendula komhlaba, kanye nezimo zokwakha ngesikhathi sokusebenza kwe-jet grouting nasezinyathelweni zokukh excavation ezilandelayo. Zivumela abakhiqizi ukuba baqinisekise ukuthi izilungiselelo zokwakha ziyahlangatshezwa, kutholakale izinkinga ngesikhathi sangempela, futhi kwenziwe izilungiso ngaphambi kokwehluleka kokwakha noma ukuhamba komhlaba okungamukeleki. Iziqondiso ezikhethekile zisetshenziswa ezingxenyeni ezihlukahlukene zokuphucula komhlaba kuhlanganisa nezinsika ze-jet grouting ezimface nasemijiggeni yemigudu, izithiyo zokuphatha amanzi ngaphansi kwendawo yokuqondisa, izinqubo zokujova imijiggingi, ukwakhiwa kwezinsika ezihambelanayo nezinsika eziphelele, kanye nezindlela zokuqhuba umhlaba ezindaweni zomnyango wemigudu nasekwakhiweni kwamashafa. Zibaluleke kakhulu emaphakathini amadolobha lapho ukuphatha ukwehla kungokuqukethwe, ezindaweni ezinzima ezinezakhiwo ezikhipha izinkinga ezimile, futhi ezindaweni lapho izakhiwo ezisondelene zifaka imikhawulo eqinile yokuhamba. Umgomo wokusebenza ubandakanya ukurhaxwa kwemininingwane ebalulekile phakathi nangemva kokusebenza kwejetting. Izilinganiso zomfutho nezilinganiso zokuhamba zihlola amazinga okufaka izinto zokuqinisekisa ukusathelwa okuhle nokuthola izivimbelo noma ukukhathazeka kwezinsiza. Ama-inclinometers nezilinganisi zokuhlala zilandela ukuhamba komhlaba nezakhiwo ukuze kutholakale ukunqwabelana okungaphezulu noma ukuhamba okuhamba phezulu. Ama-piezometers measure ukunwetshwa komfutho wezikhala nokushintsha kwezinga lamanzi ngaphakathi naseduze kwezindawo eziphehlelwe. Izinsiza zokuthola amanzi nokuhlola ubukhulu ziqinisekisa ukuthi izinto zokuqhuba zithola amandla kanye nezici zokwenziwa. Izinhlelo zokuhlola izwi nezisombulula ezibukekayo (iyunithi ze-boreholes) zihlola ikhwalithi yesinsika futhi zithole izikhala noma izinkinga emathanjeni abhekelwe. Izinhlelo zokusebenza ezinkulu kule kategorie zifaka imiyalo yokurekhoda umgogodla okukhululekile efakwe ngqo ezinsizeni zokujova, amakhonkco okubona angalandela izimo eziningi ahlanganisa umfutho, ukuhamba, ukuhamba, nezilungiselelo zomfutho wezikhala, izinhlelo zokwazisa ezenzakalayo ezikhipha izixwayiso uma izilinganiso zidlula imikhawulo yokwakha, nezinkundla zokubhalisela imininingwane ezihlanganisa ukufinyelela ngesikhathi sangempela kwemisebenzi yephrojekthi. Izinsiza ezikhethekile zifaka ama-transducers azimele omfutho wokuhlola ukuvikeleka kwezinsika ze-grouting, ama-piezometers avuma kakhulu wokuhlola amanzi isikhathi eside, kanye nezinhlelo ze-GNSS ezibhala isikhathi sangempela (RTK) zokwakha ukuma kwezimo ezintathu. Izinketho zokukhetha izibalo ezikhethekile zokuhlola zifaka ubunzima bephrofayili ye-geotechnical kanye nezinga lokungafani komhlaba, ububanzi bezakhiwo ezibalulekile kanye nemikhawulo yokwehla edingekayo, uhlobo lwezinto zokuqhuba nezilinganiso zokufakwa, ukujula kwemigudu kanye nezimo zamanzi, isikhathi sephrojekthi kanye nesidingo sokuhlola isikhathi eside, izidingo zokudlulisela imininingwane (ngalesi sikhathi vs. njalo), kanye nokuhlanganiswa nezinhlelo zokulawula ezizenzakalelayo ze-jetting. Izinto zomkhiqizo zendlela yokwelapha, izinguquko ze-thermo, kanye nekhwalithi yokuhlanganiswa komfutho wezinsiza nezinto zokuqhuba kufanele zicatshangwe. Izindinganiso zemboni ezimayelana nezokuhlola zifaka i-EN 1538 (Izindala Zokwakha), i-EN 14199 (I-Micropiles), i-DIN 4125 (Ukubamba), i-ISO 6892-1 (Izivivinyo Zezinto), kanye ne-API RP 65 (Ukukhathalela Nokusebenzisa I-Casing Ne-Tubing). Iziqondiso zokuhlola kufanele zihambisane nezincwadi ze-geotechnical ezisekelayo nezinhlelo ze-TABLES zokuphendula izenzo zokwelula (TART), kuqinisekisa ukuthi ukuthola okukhangayo kuqondisa izindlela zokwakha eziguqukayo kanye nezinguquko zokwakhiwa ngesikhathi sangempela njengoba izimo zangaphansi zikhonjwa phakathi kokukhululwa.