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VDO

IV. Horizontal Directional Drilling(HDD)

t bore:Locatind and directional drilling(changes of d
Back reaming:Disassembly of drill head

Back reaming:The choice of the back reamer

ulling: Immediate pipe pulling(at small backream diam
lling: Immediate pipe pulling(at larger backream dia

ling: connection between back reamer and expande



IV. Horizontal Directional Drilling(HDD)

t bore:Locatind and directional drilling(changes of d
Back reaming:Disassembly of drill head

Back reaming:The choice of the back reamer

ulling: Immediate pipe pulling(at small backream diam
lling: Immediate pipe pulling(at larger backream dia

ling: connection between back reamer and expande



IV. Horizontal Directional Drilling(HDD)

t bore:Locatind and directional drilling(changes of d
Back reaming:Disassembly of drill head

Back reaming:The choice of the back reamer

ulling: Immediate pipe pulling(at small backream diam
lling: Immediate pipe pulling(at larger backream dia

ling: connection between back reamer and expande

Drill rig



VDO

IV. Horizontal Directional Drilling(HDD)

t bore:Locatind and directional drilling(changes of d
Back reaming:Disassembly of drill head

Back reaming:The choice of the back reamer

ulling: Immediate pipe pulling(at small backream diam
lling: Immediate pipe pulling(at larger backream dia

ling: connection between back reamer and expande



IV. Horizontal Directional Drilling(HDD)

Pipe pulling: End of the pipe pulling
Check HDPE pipes (Dummy Test)





VDO

IV. Horizontal Directional Drilling(HDD)

Pipe pulling: End of the pipe pulling
Check HDPE pipes (Dummy Test)



V. Pipe Jacking

Determination of the bore line
Materials

Construct launch pit and reception pit
Set alignment and jacking frame

Weld a jacking pipe

Use a hand auger to penetrade the ground

V. Pipe Jacking :Method of installing

Rigid Pipe horizontally below the ground
surface. The depth from road surface to
jacking pipes should exceed 2.5 m.

>2.5 m.

Hand
Auger

Weld Joints







V. Pipe Jacking

Determination of the bore line
Materials

Construct launch pit and reception pit
Set alignment and jacking frame

Weld a jacking pipe

Use a hand auger to penetrade the ground

V. Pipe Jacking :Jacking Pipe

V. Pipe Jacking :Generator

V. Pipe Jacking : WINCH

V. Pipe Jacking :hydraulic machine

V. Pipe Jacking :hydraulic Jacks

V. Pipe Jacking :Weld Components

V. Pipe Jacking :Truck with crane

V. Pipe Jacking :Air blower

V. Pipe Jacking

Determination of the bore line
Materials

Construct launch pit and reception pit
Set alignment and jacking frame

Weld a jacking pipe

Use a hand auger to penetrade the ground



V. Pipe Jacking

Determination of the bore line
Materials

Construct launch pit and reception pit
Set alignment and jacking frame

Weld a jacking pipe

Use a hand auger to penetrade the ground



V. Pipe Jacking

Determination of the bore line
Materials

Construct launch pit and reception pit
Set alignment and jacking frame

Weld a jacking pipe

Use a hand auger to penetrade the ground















V. Pipe Jacking

Determination of the bore line
Materials

Construct launch pit and reception pit
Set alignment and jacking frame

Weld a jacking pipe

Use a hand auger to penetrade the ground





V. Pipe Jacking

Remove the soil
Push the jacking pipe by hydraulic Jacks

Check jacking pipe level
Weld deformed bar

Lay HDPE pipes on deformed bar

Install formworks and Grout Mortar
Uninstall formworks





V. Pipe Jacking

Remove the soil
Push the jacking pipe by hydraulic Jacks

Check jacking pipe level
Weld deformed bar

Lay HDPE pipes on deformed bar

Install formworks and Grout Mortar
Uninstall formworks