Indawo ephambili yeinqwaba sheet sheetiinkqubo ngoku zenza ukuba ukwakhiwa kwebhulorho ekhawulezayo kuloliwe ohamba ngesantya esiphezulu kwiiprojekthi ezininzi ezinkulu eMntla Melika, eLatin America naseAsia. Iingxelo zobunjineli zibonisa ukuba isisombululo esiphuculweyo esisekelwe kumanqanaba aphezulu ensimbi, iindlela zokufakela iimodyuli kunye nokukhuselwa kwe-corrosion engcono kuvumela ukunciphisa kakhulu ixesha lokwakhiwa kwesiseko, ngelixa ukwandisa ukuzinza kwesakhiwo sexesha elide.
Abalawuli beprojekthi kwi-US West Coast ye-corridor ye-high-speed rail corridor babika ukuba i-state-of-the-artinqwaba yeshitiinkqubo ikhawulezisa ukwakhiwa kwe-cofferdam, inciphisa imfuno yezixhobo zobunzima, kwaye yandisa kakhulu ukhuseleko kwiimeko zomhlaba ezigcwele amanzi kunye nezithambileyo. Le teknoloji yenza ukuba kufakwe nzulu kunye nomthamo omkhulu wokulayishwa kwecala okwenza ukuba ilungele iibhulorho kunye neengqungquthela kwiimeko ezinzima zomhlaba.
EMexico naseChile, apho amalinge kaloliwe amatsha aphakathi kwesixeko aqhubayo, iikontraka ziqaqambisa ezo zintshauchwetheza imfumba yephephaisisombululo sibonelela ngogcino lomhlaba oluxabisa imali eninzi, luxhasa ukugrumba okukhawulezayo, kwaye lubonelela ngolunye ulwaneliseko lokusingqongileyo kwiindonga zekonkrithi eziqinisiweyo zemveli. Ukusebenziseka kwakhona kwayo kunciphisa inkunkuma yezinto eziphathekayo kunye nokukhutshwa kweeprojekthi ngokubanzi.
Iziphumo ezibaluleke kakhulu zokuphucula ezivela kusetyenziso lwamanqanaba aphezulu ensimbi ahambelana nemigangatho ye-ASTM / AASHTO, evumelaubumba intsimbi yentsimbiukuba phantsi koxinzelelo olunzima olulindelekileyo kuloliwe ohamba ngesantya esiphezulu. Uphuculo oluxhathisayo oluxhathisayo lukwanyusa ubomi benkonzo yesiseko ebonelela uzinzo lwexesha elide kwiibhulorho zikaloliwe ezenzelwe inkonzo yeminyaka engama-80-100.
Abasemagunyeni abasuka kumacandelo ngamacandelo ezothutho bathi inkqubo yokuphumelela iza kuba ngundoqo kulwandiso lukaloliwe oluhamba ngesantya esiphezulu kwixesha elizayo. Njengoko utyalo-mali lweziseko zophuhliso lwehlabathi lugxile kwisantya esikhawulezayo sobomi kunye nendlela yokwakha eluhlaza, isisombululo semfumba yentsimbi yokusebenza ephezulu siya kuba ngumgangatho woyilo lweebhulorho ezintsha zikaloliwe.
Njengoko izizwe zibaleka ukwakha isizukulwana esilandelayo seenkqubo zikaloliwe ezinesantya esiphezulu, obu buchwephesha besiseko sentsimbi yobuchwephesha buya kuguqula ulwakhiwo lweeprojekthi ezinkulu zebhulorho, kuphuculwe unikezelo lwendawo yemisebenzi kunye nokubonelela ngeebhulorho ezomeleleyo kunye nezisombululo ezizinzileyo kwizizukulwana zabakhi bezakhiwo.
Idilesi
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Ixesha lokuposa: Nov-07-2025