Introduction to Sand Dredging Equipment

Topics: Dredging, Excavator Pages: 34 (4563 words) Published: February 21, 2013
Chapter 1 Introduction

1. Introduction to Dredging Equipment
1.

Introduction to Dredging Equipment .......................................................................... 1 1.1.
Introduction ......................................................................................................... 1 1.2.
Types of dredging equipment ............................................................................. 2 1.3.
Mechanical dredgers ........................................................................................... 3 1.3.1.
The bucket ladder dredge ................................................................................ 3 1.3.1.1.
General ........................................................................................................ 3 1.3.1.2.
Working method ......................................................................................... 5 1.3.1.3.
Area of application ...................................................................................... 6 1.3.2.
Grab or Clamshell dredger .............................................................................. 7 1.3.2.1.
General ........................................................................................................ 7 1.3.2.2.
Working method ......................................................................................... 7 1.3.2.3.
Area of application ...................................................................................... 9 1.3.3.
Hydraulic cranes (Backhoe and front shovel) ............................................... 10 1.3.3.1.
Working method ....................................................................................... 11 1.3.3.2.
Area of application .................................................................................... 12 1.4.
Hydraulic dredgers ............................................................................................ 13 1.4.1.
Plain suction dredger..................................................................................... 13 1.4.1.1.
General ...................................................................................................... 13 1.4.1.2.
Working method ....................................................................................... 15 1.4.1.3.
Area of application .................................................................................... 16 1.4.2.
Barge unloading dredger ............................................................................... 17 1.4.2.1.
General ...................................................................................................... 17 1.4.3.
The cutter suction dredger ............................................................................ 18 1.4.3.1.
General ...................................................................................................... 18 1.4.3.2.
Working Method ....................................................................................... 19 1.4.3.3.
Applied working area ................................................................................ 21 1.4.4.
The bucket wheel dredger ............................................................................. 22 1.4.5.
Trailing Suction Hopper Dredger ................................................................. 23 1.4.5.1.
General ...................................................................................................... 23 1.4.5.2.
Working method ....................................................................................... 24 1.4.5.3.
Applied working area ................................................................................ 26 1.5.
Conclusion ........................................................................................................ 27

1.1. Introduction
Definition: A dredgers is a piece of equipment which can dig, transport and dump a certain amount of under water laying soil in a...
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