Definisi Pengerukan.

Pengerukan adalah kegiatan penggalian yang biasanya dilakukan di bawah air, di perairan dangkal 
atau daerah air tawar dengan tujuan mengumpulkan sedimen dan pelebaran dasar seperti di Terusan 
Erie. Teknik ini sering digunakan untuk menjaga agar saluran air tetap dilayari dan menciptakan 
jalur anti lumpur untuk kapal. Ini juga digunakan sebagai cara untuk mengisi pasir di beberapa 
pantai umum, dimana pasir telah hilang karena erosi pantai.

Pengerukan dilakukan untuk menciptakan pelabuhan baru, tempat berlabuh atau jalur air, 
atau untuk memperdalam fasilitas yang ada agar memungkinkan akses kapal lebih besar. 
Karena pekerjaan modal biasanya melibatkan materi keras atau karya bervolume tinggi, pekerjaan 
biasanya dilakukan dengan menggunakan pengerukan pengisap pemotong atau pengerukan guntingan 
tali pengaman besar; Tapi untuk pekerjaan batu, pengeboran dan peledakan bersamaan dengan 
penggalian mekanis bisa digunakan.

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