Line Aqueduct Concrete Block Line Aqueduct Concrete Block

Line Aqueduct
Concrete Block
Type
F
Curbstone having inside small water channel
Extension of
effective
road
width
Removal of
puddle
Water splash
prevention
Workability
Line Aqueduct Concrete Block Type F is a precast concrete pro
developed as a substitute structure for L-shaped street gutter.
Street gutter apron falls into disuse because of stormwater collection by road surface wate
placed continuously and water passage through inside water channel.
Line Aqueduct Concrete Block Type F
Extension of
有効幅員
effective
拡大
road width
Effective road width of road shoulder
d is extended by falling iinto
t di
disuse of
L-shaped street gutter.
Safety passage of cyclists and vehicles can be accomplished by dissapearance of bump
on the boundary between pavement and L-shaped street gutter.
Extension
of effective
road width
有効幅員が拡がり
ます。
Before
Effective
road width of road shoulder is extended by falling into
街渠エプロンが不要となるので、路面の横断勾配が一定となります。
disuse of L-shaped street gutter.
▽L-shaped street gutter
500
W
2%
6%
After
▼Line Aqueduct Concrete Block Type F
W+500
2%
Removal
水溜り解消
of puddle
Barrier free accomplished by removal of puddle
Comfortable walking can be accomplished by removal of puddle as a barrier.
Before
After
Removal of puddle!
Comfortable walking accomplished by water splash prevention
Provision of environment for pedestrian to pass at ease by water splash prevention.
水ハネ
防止
Water
splash
prevention
Before
After
Sidewalk
Sidewalk
Roadway
Roadway
er slit
Structure of
standard portion
Structure of pedestrian
passing portion
Road surface water slit
Stormwater on pavement surface is
collected into inside water channel.
Inside
water channel
er
ce lay
Inside
water channel
Surfa
Side surface water hole
Butt portion slit
Water slit
Base
layer
W a te r c o lle ct io
n t hr
o ug
h sl
it
In case of permeable pavement,
stormwater penetrated into
pavement body is collected into
inside water channel.
Backfilling can be accomplished on the day Line Aqueduct Concrete Block is
installed. Because of shortning of working process, the road which
pedestrian can pass with ease on can be restored as soon as possible.
▼ Range reduction of road traffic regulations
Workability
Even if backfilling is not carried out on the day, range reduction of road traffic regulations and
effect mitigation for current road can be accomplished by deployment of safety fence in the
range of removal and excavation.
▽L-shaped street gutter
▼Line Aqueduct Concrete
Block Type F
大阪市 あ　00
12-34
→ Regulation for road shoulder is required during
downtime of work.
→ Safety fence can be deployed in the range of
removal and excavation.
▼ Interference avoidance with underground
facilities
There is little probability that interference avoidance
with underground facilities like gas, water and
communication pipes occurs, because of compact
section and narrowed excavation range.
Large separation
oduct
Transversal bedded pipes
▼ Improvement of the surrounding work environment
Contribution to enhancement of the image - Shortning of working process by adoption of
precast concrete products and Effect mitigation for current road, local residents and road
users by range reduction of road traffic regulations.
Applicable sites
It is an effective measure for puddle at the site that drainage slope is not insured or curve is mainly
adopted. In addition, it is also adopted as measure for barrier free.
■ Station square
■ Roadside station
■ Parking lot
Major products
⑥
②
①
①
②
φ125 L=600mm
③
φ150 L=600mm
φ150
T
y
p
e
A
50
50
T
y
p
e
B
50
300
50
475
A
（R1.5∼R12.0）
④
L=1,000mm
⑤
L=1,000mm
300
⑥
⑦
⑧
50
T
y
p
e
B
50
200
50
525
T
y
p
e
300
150
φ200
50
200
φ150・200 L=1,000mm
④
425
①
⑦
150
⑧
⑤
375
③
300
L=600mm
Number of construction results and Adoption examples
Construction results in Japan : 2,711
Before
Before
Before
After
After
After
ITO YOGYO CO., LTD
http://www.itoyogyo.co.jp/en
※As of November, 2013
(HEAD OFFICE)
6-3-14, Nakatsu, Kita-ku,Osaka 531-0071 JAPAN
TEL: +81-6-4799-8853 FAX: +81-6-4799-8864
Two-story gutter having accommodation
of pipelines for electric wires
D.D.BOX
▲ Upper space : Original function as a gutter
▼ Lower space : Accommodation of electric wires
Utilization of
road space
Shortning of
working
process
Economic
efficiency
Workability
Disaster
recovery
What is
D.D.BOX
D.D.BOX?
.BOX?
Two-story gutter having accommodation
of pipelines for electric wires
Various underground facilities exist in narrow road and
there is no space to lay electric wires undergound.
D.D.BOX is a two-story gutter having
accommodation of pipelines for electric wires
which utilizes road space under a road gutter.
←Utilize this space→
■ PAT (Japan) ■ PAT.P (Thailand)
Structure of
D.D.BOX
Upper
space
-Standard Type-
Original function
as a gutter
H800
-Shallow Type-
Capability of laying
4 pipelines for electric
wires with100mm in
diameter
Capability of laying
pipelines for electric
wires in minimum
space
H600
[Dimension]
[Dimension]
▲
Division by
water channel bottom plate
▼
H600㎜×W480㎜
H800㎜×W480㎜
[Cross section]
[Cross section]
(▲Upper)
(▲Upper)
H124㎜×W300㎜
H300㎜×W300㎜
(▼Lower)
(▼Lower)
H300㎜×W300㎜
H300㎜×W300㎜
Accommodation
of electric wires
Water channel
bottom plate
Lower
space
Applicable location of
Water channel bottom
plate to support function
of a gutter
D.D.BOX
■ Road having narrow width
In case there is no space to lay pipelines for electric
wires in community road and school routes having
narrow width and various underground facilities, the
accommodation is accomplished to utilize empty space
under a gutter.
Handhole
Gutter portion
Catch basin
Service line
Low tension power
High tension power
- Image of D.D.BOX construction -
■ Utilization of space
under a gutter
Risk mitigation for existing
underground facilities
Current status
Utilization
of
road space
D.D.BOX to utilize empty space under a gutter is adopted
Utility pole
Gas pipe
Gas pipe
Communication
Stormwater
drain pipe
Soil pipe Tap water
pipe
Narrow road width,
Various underground facilities
Advantage of
Effect mitigation for
local residents
Soil pipe
Communication
Stormwater
drain pipe
Tap water
pipe
Cleanliness and tidiness by laying
underground facilities under a gutter
D.D.BOX
Shortning
of
working
process
■ Shortning of working process
Economic
efficiency
■ Economic efficiency
Workability
■ Minimization of traffic control
Control of existing underground facilities by D.D.BOX provides time-saving related to
investigation of existing underground facilities and relocation work. Not only shortning of
working process, but effect mitigation for local residents can be accomplished.
Cost-saving related to investigation for existing underground facilities and relocation work as
well as shortning of working process and reduction of entire construction expense can be
accomplished.
Reduction of excavation on the road provides less impact for traffic control during construction.
■ Risk mitigation for existing underground facilities
Reduction of intervention in existing underground facilities provides risk mitigation of breakage
by excavation during relocation work.
■ Protection of pipelines for electric wires
Protection of pipelines for electric wires provides no necessity to consider external
pressure for piping material and cost-saving of piping used.
No use for pipe pillows provides easy pipework. Security of straitness of the pipelines can
be accomplished by insertion of pipelines for electric wires into D.D.BOX.
New function by
Disaster
recovery
D.D.BOX
■ Acceleration of disaster recovery
Recovery can be accomplished without any excavation by accomodaing pipelines for electric
wires in road space under a road gutter.
Composition of
D.D.BOX
D.D.BOX is composed of Body block, Water channel bottom plate and Concrete lid.
▼ Typical cross section
(General portion)
480
270
● Concrete lid※
Concrete lid
※Lid in compliance with the
JIS standards is applicable.
90
● Connecting fittings
Connecting fittings
● Water channel
305
bottom plate
300
16
800
Water channel
bottom plate
Body block
89
Mortar
Foundation material
50 90
300
90 50
580
D.D.BOX Lineup
Body block
Body offset block
L=2,000mm
Water channel block
L=1,000mm
Water channel offset block
L=1,000mm
L=1,000mm
＊Option : Water channel bottom plate
Constructional example
of around handhole
Handhole
Body offset block
Body block
▲ Laying pipelines for
electric wires
▲ Status of accommodating
pipelines for electric wires
▲ Installation status of water
channel bottom plate
▲ Done
Catch basin
A handhole is placed on extension of
D.D.BOX and catch basin is offset toward
road direction.
ITO YOGYO CO., LTD
http://www.itoyogyo.co.jp/en
(HEAD OFFICE)
6-3-14, Nakatsu, Kita-ku,Osaka 531-0071 JAPAN
TEL: +81-6-4799-8853 FAX: +81-6-4799-8864