CIVIL ENGINEERING and ENVIRONMENT MANAGEMENT BUGINESS

TOBAN-YOUSUI (Midorigaoka-Siphon) Agricultural Water Channel

WORLD RECORD Establishment: January, 2019

ESS Tunneling Construction (Shield Method – Internal-Water-Pressure Segment)
● φ 1500 millimeters dia. / 2447.16 meters long
● 1-Span Small-Caliber Shield (HEAVY SLURRY)
● 2447.16m of Tunneling-Extension (Longest Record in the World)
Location:

Major Construction
Works:


Completion Date:
Miki City, Hyogo

Civil Engineering-Tunneling-Agricultural Water Channel

January 17, 2019 (Arrival)

HIYODORIGOE-SUJI River Improvement: "Barrier against Landslide" Construction

Location:


Major Construction
Works:






Completion Date:
Shimizu-Cho,
Hyogo-Ku, Kobe City

● Debris‐Slide
    Protection Works
● Concrete Dam
    Mainframe Work : 1468m3
● Overhead Line Work
● Debris Flow
    Countermeasure

January 15, 2020

Year 2017 - No. 2801 Rainwater Tunneling Works Phase#1 - Irie Area

ESS Tunneling Construction (HEAVY SLURRY Pipe-Jacking and Shield Combined Method
● Finished Inner Diameter: φ1800mm
● Pipe-Jacking Section: 262.49m
● Shield Section: 158.599m
● Total Excavated Extension: 421.093m
● Low Overburden Construction (Heavy Slurry)
● Min. Overburden: d=2.17m
● Sharp-Curved Requirement: Shaped “S”, 20m Radius
Location:

Major Construction
Works:

Completion Date:
Oiwake, Shimizu-Ku, Shizuoka City

Storm Sewer Tunneling:
Anti-Inundation Measure Work

December 17, 2019

Class A Rokkenya River Aseismatic Work (JR Yumesaki Line-Upstream Left Bank)

Location:


Major Construction
Works:


Completion Date:
Nishikujo,
Osaka Konohana-ku, Osaka

● Steel Sheet Piling
● Type VIL 15.5m x (516)     pieces

September 17, 2019

River Improvement: "Barrier against Landslide" Construction on Higashigawa 2nd-tributary River System

● Concrete Gravity Barrier against Landslide
● Dam height: 14.5 meter
● Dam length: 94 meter
Location:


Major Construction
Works:

Completion Date:
Misaki-Cho, Sennan-Gun,
Osaka

Barrier against Landslide


March, 2017

Public Sewerage Improvement: Construction-Area 60 Funahashihonmachi Rainwater Branch Line

ESS Tunneling Construction (Pipe-Jacking and Shield combined)
● 1500 millimeters dia. / 896.21 meters long
● 20 meters of S-Curve Radius, 14 Curves Construction
Location:

Major Construction
Works:

Completion Date:
Hirakata City, Osaka

Sewerage Tunneling


May, 2017

Road Improvement (New-2014): National Route 309

● National Road-New Construction
● Extension: 520m/Road Width: 21m
Location:



Major Construction
Works:

Completion Date:
Kanan-Cho,
Minamikawachi-Gun Osaka
to Chihaya-Akasaka- Mura

National Road-New
Construction

2014

Public Sewerage Construction: Fushimi 3,4 Distributary (phase 2)

ESS Tunneling Construction (Pipe-Jacking Method)
● 1650 millimeters dia. / 339.70 meters long
● 20 meters Sharp-Curve Radius
● Reaching Existing Shaft Method
● SUS Excavator
Location:

Major Construction
Works:

Completion Date:
Fushimi-Ku, Kyoto

Sewerage Tunneling


June, 2016

Riparian Works: Class-A Aska River (Hacho-Bashi vertical-stream-side 2013)

Bridge Renewal
●(1) x Inverted Type-T Abutment
●(1) x Temporary Pier
Location:

Major Construction
Works:

Completion Date:
Habikino City, Osaka

Bridge Construction


March, 2015

Public Sewerage Construction: Fushimi 3,4 Distributary (phase 1)

ESS Tunneling Construction (Shield Method)
●1200 millimeters dia. / 294.11 meters long
●13 meters, 19 meters of Sharp-Curve Radius
Location:

Major Construction
Works:

Completion Date:
Fushimi-Ku, Kyoto

Sewerage Tunneling


October, 2015

Trunk Line Reinforcement: Shibatsuji-Cho (Public 1)

ESS Tunneling Construction (Pipe-Jacking Method)
● 1000 millimeters dia. / 776.22 meters long
● 20 meters Sharp-Curve Radius

ESS Tunneling Construction (Pipe-Jacking Method)
● 1000 millimeters dia. / 322.51 meters long
● 30 meters Sharp-Curve Radius
● Reaching Existing Manhole Method

ESS Tunneling Construction (Pipe-Jacking Method)
● 800 millimeters dia. / 296.08 meters long
● 3200 millimeters dia. Entry Pit
Location:

Major Construction
Works:

Completion Date:
Nara City, Nara

Sewerage Tunneling


March, 2015

Road Improvement: JR Yao Station Environment Maintenance (2013)

Station Square Improvement
● 146.95m Expansion / 5.5~22.0 meters width
Location:

Major Construction
Works:

Completion Date:
Yao City, Osaka

Station Square Improvement


March, 2015

5 Takami-Cho, Yao City Land Reclamation/Development

● Reclamation/Development Area: 12465 square meters
● Number of Houses: 84
Location:

Major Construction
Works:

Completion Date:
Yao City, Osaka

Land Reclamation/Development

March, 2015

Rainwater Drainage-Pipe Installation (phase 6): Road Planning Yamato-River Line

● Road Newly Extension: 185.3 meters long
● Drainage, Wire Common Conduit Construction, etc.
Location:

Major Construction
Works:

Completion Date:
Matsubara City, Osaka

Road


March, 2014

Year 2012 Public Sewerage Improvement: Rainwater Drainage at North-area Yachiyodai

ESS Tunneling Construction (Pipe-Jacking and Shield combined)
● 1100 millimeters dia. / 241.44 meters long
● 10 meters Sharp-Curve Radius
Location:

Major Construction
Works:

Completion Date:
Yachiyo City, Chiba

Sewerage Tunneling


December, 2013

Year 2012 Public Sewerage Improvement: Onchi-River East area

Muddy Water Type Pipe-Jacking Tunneling
● 800 millimeters dia. / 126.30 meters long

Heavy Slurry Type Pipe-Jacking Tunneling
● 800 millimeters dia. / 116.60 meters long

Excavation Tunneling
● 1000 millimeters dia. / 5.00 meters long
Location:

Major Construction
Works:

Completion Date:
Yao City, Osaka

Sewerage Tunneling


November, 2013

Public Sewerage Improvement: North Main Line, Otesuji (phase 1)

ESS Tunneling Construction (Pipe-Jacking and Shield combined)
● 1800 millimeters dia. / 344.48 meters long
● Reaching Existing Shield-Tunnel

ESS Tunneling Construction (Pipe-Jacking Method)
● 1100 millimeters dia. / 275.12 meters long
● 50 meters Sharp-Curve Radius,
● (2) x SUS Excavators
Location:

Major Construction
Works:

Completion Date:
Fushimi, Kyoto

Sewerage Tunneling


November, 2012

Mikitakami Minami-Ku Sakai City and Oike, Osaka Land Reclamation

● Development Area: 31850.80 square meters
● Number of Houses: 111
Location:

Major Construction
Works:

Completion Date:
Sakai City, Osaka

Land Reclamation


November, 2012

Osaka Public Works Bureau West-Area Management: Sewerage-Pipe Rehabilitation (23-1-1)

Pipeline Rehabilitation “SPR (Sewage Pipe Renewal) Method”
● 900 millimeters dia. / 290.75 meters long
Location:

Major Construction
Works:

Completion Date:
Minato-Ku, Osaka

Sewage Pipeline
Rehabilitation

March, 2012