Hori-Drain®

Overview

Specification

Hori-Drain®

Prefabricated Horizontal Drain (PHD) for replacing sand blanket in soft ground improvement works

Overview

Hori-Drain® is a pocket style Prefabricated Horizontal Drain (PHD) that improves soft ground. It is made of a mechanically strong PP core and a nonwoven filter jacket that is specialized for soil improvement and drainage works. Hori-Drain® expedites soil consolidation by facilitating rapid drainage of pore water discharged through vertical drains installed in soft ground.

Horizontal drains | Replacement of Sand Blanket|manufacturer
Prefabricated Horizontal Drain (PHD), Hori-Drain®

Hori-Drain® is installed by connecting with a part of prefabricated vertical drain(Verti-Drain®) exposed outside of the ground after installation. Hori-Drain® can effectively and economically replace the horizontal layer of natural aggregates(sand and gravel) thanks to its high level of drainage capacity. Core structure of 山 shape can prevent filter insert to water channels under high pressure in comparison to other types of core structures more effectively.

Prefabricated Horizontal Drain(PHD) for replacing sand blanket in soft Ground improvement works.

          [Mechanism of soft ground improvement using Verti-Drain® and Hori-Drain®]

Horizontal drains | Replacement of Sand Blanket|manufacturer

                  [Comparison of filter intrusion into water channel according to core shapes]

Applications of Hori-Drain®

Hori-Drain® can be used for replacing the horizontal drainage layer of natural materials such as sand or gravel in soil improvement works and various drainage applications.

  • Replacement of sand or gravel layer for soft ground improvement
  • Land development for road, railway, airport and seaport
  • Drainage of rain water
  • Drainage of bank slopes and dissipation of water pressure
  • Back wall drainage of retaining walls and concrete structures

Advantages of Hori-Drain®

Workability & Economic Efficiency

  • Eco-friendly technology that replaces or reduces the use of natural aggregate
  • High economic efficiency reducing construction cost by more than 30%
  • Stable supply through factory production (prevention of construction delay due to unstable supply of materials)
  • Easy installation by manpower without heavy equipment

Performance & Drainage Capacity

  • Core structure of 山 shape to avoid filter insert to water channels under surcharge
  • High drainage capacity of over 3,500 cm3/s under loading at 500kPa
  • Open structure of water channels and great efficiency of drainage with an effective area of water collection by at least 80%
  • Outstanding load dispersion

Comparison of horizontal drainage methods

Hori-Drain® Fiber-Mat Natural Aggregate Mat
Section
Description · Pore water discharged to ground surface through installed PVD is horizontally drained through Hori-Drain® · Pore water discharged to ground surface through installed PVD is horizontally drained through natural Fiber mat · Pore water discharged to ground surface through installed PVD is horizontally drained through natural sand and/or gravel layer
Characteristics

· Hori-Drain® is made by DAEHAN i.m. and a stable supply is available

· Thanks to the strong structure of the water channel with its interior support, stable discharge ≥3,500cm³/s at surcharge loading of 500kPa is facilitated

· Easy to install and low cost

· Eco-friendly material using natural coir and jute

· Unstable quality as products are imported and manually produced

· Significant reduction of water channel under surcharge

· Plenty of experience applied and widely used for soil improvement

· Environmental damage in securing quality materials (causing public complaint)

· Relatively high changeability of supply capacity and price according to how available the supply is at any moment
Economic efficiency High Middle Low
Validity for selection ◎

 

Installation of Hori-Drain®

Major Projects

Year Project Name  Quantity
2014 Thi Vai Port Project, Vietnam 13,650m
Mokpo Daeyang Industrial Complex 35,000m
Eomsan-Baeksu Road 10,000m
2015 Access Road of Special Complex in Jangan, Stage 1 32,281m
Access Road of Special Complex in Jangan, Stage 2 25,400m
Thi Vai Port Project Ph 2, Vietnam 46,720m
2017 Eco Delta City Ph 2, Pack. 1 37,080m
Bukpyeong General Industrial Complex 110,000m
Cargo Village, Indonesia 20,350m
Eco Delta City Ph 2, Pack. 2 38,500m
Asan-Cheonan Expressway 12,000m
Service Area Construction of Mokpo New Port 41,000m
Siheung Maewha General Industrial Complex 12,400m
Cirebon II Coal Fired Power Plant, Indonesia 495,079m
Pekalongan Power Plant, Indonesia 200,000m
Hyosung Chemical Plant Project, Vietnam 224,782m
2018 Recl. & Marine Works at Tuas West Coast, Singapore 295,675m
Siheung Campus of Seoul Unversity 35,000m
Maintenance for Natural Disaster Risk Zone, Myeongbub 59,000m
Euntong Industrial Complex 10,000m
2019 Freeport Smelter Project, Indonesia 1,291,040m
J1018 Advance Earthworks and Associated Works, Singapore 112,720m
Haenam Guseong Region Development, Phase 1 100,000m