In urmatorii 6 ani Romania ar urma sa fie traversata de mai multe tronsoane de autostrada a caror lungime va depasi 1.500 de kilometri. Cel mai recent santier deschis in acest sens e tronsonul Moara Vlasiei – Ploiesti, de 64 de kilometri, al viitoarei autostrazi Bucuresti-Brasov. Libertatea a patruns in baza operationala a uneia din companiile insarcinate cu con-structia tronsonului. Asa am descoperit ca pentru realizarea unui drum de mare viteza e necesara o desfasurare de forte absolut impresionanta.
La constructia noului drum va fi folosita cantitatea record de 460.000 de tone de asfalt. ‘Avem o baza operationala de unde se controleaza totul. Nu se avanseaza un centimetru intr-o noua zona pana nu analizam tot materialul cu care lucram. Nu facem un drum care sa ne deserveasca un an-doi, din contra, realizam ceva durabil’, ne-a spus Ionut Nedelcu, director in cadrul Spedition UMB, compania care construieste primii 14 kilometri dinspre Ploiesti catre Moara Vlasiei ai autostrazii Bucuresti-Brasov.
Pretul intregii lucrari va fi de 2,7 miliarde €
Asadar, intr-o curte de cateva mii de metri patrati a fost realizata ‘Organizarea’, mai exact centrul vital al intregii lucrari. Aici au fost aduse utilajele, birourile, laboratoarele si cea mai mare parte a materiilor prime care vor fi utilizate, stocate in mai multe statii de betoane, criblura sau balast. In cifre, putem spune ca doar valoarea utilajelor folosite este de 20 de milioane de euro. Pentru a fi puse in miscare, se consuma zilnic cate 15 tone de motorina. Valoarea celor 14 kilometri construiti de UMB se ridica la aproximativ 70 de milioane de euro din cele 200 de milioane, cat costa tot tronsonul Moara Vlasiei-Ploiesti, de 64 de kilometri, care vor putea fi folositi in circa trei ani. Pretul intregii autostrazi de 174 de kilometri e de 2,7 miliarde de euro.
Fisa „Organizarii de santier”:
Principalele utilaje folosite la construirea drumului:
– 125 de basculante Mercedes pentru transport. Costul unui singur astfel de autovehicul ajunge la 100.000 €.
-9 excavatoare. Pretul unui singur utilaj variaza intre 150.000 si 200.000 de euro
-5 buldozere a cate 200.000 de euro bucata
-Statia de preparat asfalt. Instalatia de producere a mixturilor asfaltice este fabricata in acest an in Franta. E printre cele mai performante din sud-estul Europei, fiind unica in aceasta parte a continentului. Are o capacitate de productie de 550 t/ora. Mai exact, paveaza cate un kilometru pe ora. Instalatia este mobila, putand fi mutata rapid in alta locatie.
Controlul fabricatiei e comandat in permanenta de un computer.
1.Primul pas: proiectarea autostrazii, gasirea celei mai bune rute intre cele doua orase si trasarea ei pe harta
2. Urmatorul pas il reprezinta exproprierile. Statul cumpara de la cetateni portiunile de teren pe care se va construi autostrada. In aceasta zona inca se poarta negocieri cu proprietarii terenurilor
3.125 de basculante Mercedes de 100.000 € cara fara incetare nisipul si balastul folosite pentru fundatia viitorului drum. Aici este organizat un minidepozit de materiale ce vor fi folosite la constructia autostrazii
4. Excavatoarele degajeaza terenul de pe campul din Barcanesti pentru a face loc viitoarei sosele. Aici se contureaza viitoarea autostrada
De ei depinde ca soseaua sa fie cat mai „solida”
Constructia autostrazii cuprinde mai multe procese. Nici un pas nu este facut pana cand fiecare ‘ingredient’ al autostrazii nu este analizat. ‘Avem o serie de laboratoare produse in acest an in Italia, care ne-au costat un milion de euro’, ne-a spus Mariana Iftimiciuc, de 27 de ani, inginer geolog.
Laboratorul de agregate: ‘Masina de cernut testeaza rezistenta la sfaramare in centrifuga a pietrisului utilizat’, ne-a explicat Raluca Averescu, de 30 de ani, inginer geolog.
Presa: ‘Avem si o presa care exercita diverse sarcini asupra unor blocuri de ciment. Vedem sub cate tone apar fisuri in beton’, ne-a zis Mariana Iftimiciuc, de 27 de ani, inginer geolog.
Stabilizator de sol: ‘Pamantul e razuit si amestecat cu un ciment usor. Asa obtinem o fundatie puternica pentru sosea’, ne-a spus Paul Popescu, de 40 de ani, sef de laborator.
Laboratorul de geo-tehnica: ‘Verificam rezistenta pamantului la diverse presiuni, asa aflam daca terenul suporta greutati mari’, ne-a zis Ana-Maria Popescu, de 25 de ani, inginer geolog.
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