Drain belt / Drain pipedrainbelt.co.kr/new/pdf/JnB_Drainbelt_English.pdf · 2016-07-18 · -...
Transcript of Drain belt / Drain pipedrainbelt.co.kr/new/pdf/JnB_Drainbelt_English.pdf · 2016-07-18 · -...
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Drain belt / Drain pipe “Civil Works Application ”
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TABLE OF CONTENTS
Drain Belt
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1
Introduction
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- Outstanding drainage method with soft PVC micro channel inlets that absorb/drain water.
- Semi-permanent soil drainage system utilizing capillarity, surface tension, permeability and siphon.
• a:Capillarity absorbs water into the Drain belt.
• b:Surface tension locks absorbed water inside the Drain belt.
• c:Gravity stop soil fines from the micro channel inlets facing down.
• d : Siphon (water flow by pressure difference) drains water out to
the Drain Pipe.
1. Introduction
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1. Introduction
Clogging of drainage pipe, felt
Lower Safety by Soil Particle Discharge (Sink Hole, Slope Collapse)
Longer Construction Period (1month)
Lower Construct Ability
(required minimum slope S=0.5%)
Semi-permanent with no clogging
Higher Safety without Soil Particle Discharge
Possible intercepting the groundwater
Minimizing Construction Period (7days)
Higher Construct Ability
(Flexible and Slope-free)
Problems of Current Drainage System Improvement by Drain belt
Application of Innovative Drainage System
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1. Introduction
▣ Stone Filled Drain (type-1)
Omitted Gravel(smashed rock), felt construction
Minimizing construction material and personnel expenses
Shorter Construction Period
Cost Reduction(24% ↑)
▣ Drain belt
Drain Belt
Perforated pipe
Silt
Sand
Drain belt
Geotextile
Silt
Gravel
24% Reduction
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2
Sub drainage (Rock filled trench)
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2. Sub drainage (rock filled trench)
Type Criteria Note
1 (use Geotextile)
L type gutters Silt
2 L type gutters Ripping, blasted rocks
3 (use Geotextile)
Cutting & banking border Extension of existing pavement, foundation base of soundproof walls
Silt
4 Cutting & banking border Ripping, blasted rocks
Geotextiles
Geotextiles
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2. Sub drainage (rock filled trench)
Drain Belt
Socket Drain Pipe
Drain Pipe Socket
50Cm 50Cm
50Cm 50Cm
20Cm
20Cm
Drain Belt
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2. Sub drainage (rock filled trench)
Project Name Haeundae arboretum
Busan, Korea
Site photos
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3
Fill up section’s drainage
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3. Fill up section’s drainage
Site Photos
Project Name Embankment in Hoein IC
Dangjin~Yeongdeok
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4
Cut section’s drainage
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4. Cut section’s drainage
Site Photos
Project Name Local road cut slope
Fukuoka, Japan
Detailed drawing
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5
Drainage for backfill of a retaining wall (structure)
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5. Drainage for backfill of a retaining wall (structure)
Site photos
Project Name Retaining wall on roads
Gongju-city, Chungcheongnam-do
Backfilled area
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6
Sidewalk & pavement foundation drainage
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6. Sidewalk & pavement foundation drainage
Construction procedures
Project Name Full Infrastructure Project Moon-jung District, Seoul