Dragaggio

Disambiguazione – Se stai cercando l'omonimo fenomeno che avviene in alcuni stadi dell'evoluzione stellare, vedi Dragaggio (astronomia).

Questa voce sull'argomento edilizia è solo un abbozzo.

Contribuisci a migliorarla secondo le convenzioni di Wikipedia.

Dragaggio è l'operazione di scavo eseguita da un galleggiante mobile (battello-draga) mediante draghe (macchine scavatrici). Si definisce dragaggio anche la ricerca di mine subacquee, al fine di recuperarle o distruggerle^[1].

Utilizzi

Il dragaggio può venire effettuato per asportare sabbia, ghiaia e detriti da un fondo subacqueo, sia in acque marine poco profonde sia in zone di acqua dolce, e rilocarli altrove.

Viene spesso usato per mantenere navigabili corsi d'acqua, porti e darsene e per riempire di sabbia le spiagge che l'hanno persa a causa dell'erosione della costa.

Un altro suo utilizzo è come tecnica di pesca di alcune specie di molluschi e granchi commestibili.

Il dragaggio produce del materiale di scarto che viene portato via dall'area di dragata. Può essere impiegato per ricavare materiale da utilizzare per il recupero di terra dal mare o per altri scopi edilizi e ha storicamente giocato un ruolo importante nell'estrazione dell'oro.

Riferimenti normativi

Art. 5-bis della Legge 28 gennaio 1994, n. 84 - Riordino della legislazione in materia portuale.

Note

^ Dragaggio, in Treccani.it – Enciclopedie on line, Roma, Istituto dell'Enciclopedia Italiana.

Altri progetti

Wikimedia Commons contiene immagini o altri file su dragaggio

Collegamenti esterni

dragaggio, su Treccani.it – Enciclopedie on line, Istituto dell'Enciclopedia Italiana.
(EN) dredging, su Enciclopedia Britannica, Encyclopædia Britannica, Inc.

Controllo di autorità	NDL (EN, JA) 00572430

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