Sea Outfall Method

​Overview

Sea outfall method with Unclemole makes it possible to install jacking pipes under the sea while keeping the seabed clean. Unclemole will be retrieved after arriving at its destination under the sea.

Overview diagram of sea outfall method

Lock door sleeve blocks water to prevent  
the Unclemole from submersion

Retrieve the Unclemole by following the steps below:

1.Drive the Unclemole to the destination.

2.Retrieve the slurry pipes and operation cables from the starting shaft.

3.Lift the Unclemole by a crane vessel.

4. Remove the rear part of lock door sleeve

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Inspecting the inside of the lock door sleeve

Lock door sleeve

​CASE STUDY

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Reception Shaft

​CASE1: CONSTRUCTION SUMMARY

Jacking Length: 245m
Soil Condition: Gravel layer
Earth Cover: -3m~-4.2m
​Water Depth: 3m~6m
Pipe: Reinforced Concrete Pipe

​Inclination: -25%~-6%

​◆Case1. Plan View

​GL:-2.7m Starting Shaft

​GL:-6.1m Reception Shaft

​◆Case1. Section View

​1000mm ID, L=245m

​GL:-6.1m Reception Shaft

​GL:-2.7m Starting Shaft

​MACHINE SPECIFICATION

UNCLE MOLE TCC1000

Inner Diameter: 1000mm

Outer Diameter: 1220mm

Machine Length: 3045mm
Weight: 8400kg
Crusher Type: Crusher Head

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Reception Shaft

​CASE2: CONSTRUCTION SUMMARY

​​Jacking Length: 95.1m
Soil Condition: ROCK
Earth Cover: GL-6.0m~GL-9.9m 
​Water Depth: 7m
Pipe: Reinforced Concrete Pipe

​◆Case2. Plan View

​800m ID, L=95.1m

​GL:-6.0m DRIVE SHAFT

​GL:-9.9m Reception Shaft

​GL:-6.0m Starting Shaft

​◆Case2. Section View

​800m ID, L=95.1m

​GL:-9.9m Reception Shaft

​GL:-6.0m Starting Shaft

​MACHINE SPECIFICATION

UNCLEMOLE SUPER TCS800

Inner  Diameter: 800mm

Outer Diameter: 980mm

Machine Length: 3165mm
Weight: 6100kg
Crusher Type: Corn Crusher