HOME > Engineering Works > Diaphragm Wall Construction
We are the only manufacturer of rotary multi-horizontal cutter diaphragm wall trencher in Japan.
Features
Continuous Rectangular Type Wall
Construction by "MPD-TMX","BMX","EMX" or "SMX" Method is applied.
- Applicable to most ground formation due to less noise and vibration during construction works
- No impact is given to the adjacent ground due to high strength and supperior water tightness of diaphragm wall
- Can be used as permanent perimeter wall because of high bearing capacity
- Available equipment line-up covering 650-3200 mm wall thisckness and 150m depth capacity
Continuous Column Type Wall
Construction by "TMW" Method is applied.
- Side wall cutter of "TMW" Method can form a continuous rectangular wall
- Enabling wall thickness upto 900 mm and depth upto 60 m
- Can apply for earth retaining wall construction with shallow levelingwork
- Can complete faster and reduce the cost compared with a continuous rectangular walling
Applicable working site
- Temporary earth retaining wall
- Cut-off walls for underground tank, underground space, underground utility conduit, etc.
- Substitutional foundation for foundation pile, caisson, etc.
- Retaining wall, tide embankment, shore protection, etc.
MPD-TMX Method
Utilization of a recent light weight and compact diaphragm wall trencher activated at restricted space for urban civil engineering
Features
Diaphragm wall with continuous wall
Can construct a continuous rectangular section wall by placing reinforced concrete.
Space saving for working with the use of a compact diaphragm wall trencher
Compact base machine MPD-45 (Multi-Pile Driver-45 with 0.45 m3 bucket capacity) allows to work at restricted space., but can excavate wall length upto 2400-3200 mm and wall thickness upto 600-1000 mm.
Full section cutting by unique cutting mechanism
Can ensure efficient excavation by eliminating uncut section.
Save maintenance
A compact diaphragm wall trencher ensures to save maintenance works.
Application to a variety of ground formation
Can apply to a sticky formation, a stiff layer, gravel and boulder layer by the use of rotary multi-horizontal cutter.
| TMX Rotaryr Multi-Horizontal Cutter Diaphragm Wall Trencher | |||||
|---|---|---|---|---|---|
| Machine Weight |
Machine Height |
Wall Thickness |
Wall Width |
Electric Motor for Hydraulic Unit |
Cutting Force |
| 6.5ｔ | 3860mm | 600mm -1000mm |
2400mm 3200mm |
110kw | 0-9.3ｔ |
| MPD Low Head Type Pile Driver（Base Machine） | |||||
|---|---|---|---|---|---|
| Machine Weight | Feed System | Winch | |||
| Stroke | Balance Force | Feed Force | Pulling Capacity | Spooling Capacity | |
| 22.5t | 1750mm | 147kN | 98kN | Single 47.0kN |
φ14mm ×75m |
SMX Method
Utilization of diaphragm wall trencher with remarkably improved efficiency by equipping submersible sand pump nearby drum cutter
Features
Diaphragm wall with continuous wall
Can construct a continuous rectangular section wall by placing reinforced concrete.
Reduction of environmental impact to the neighbors due to lower noise
Hydraulic unit is built in the trencher body to prevent the noise.
Highly efficient system developed firstly for down-hole type trencher in the world
Employment of hydro-transmission system does not have power loss between ground surface and the trencher with the depth more than 100 m.
Choice of mounting on crawler crane or low head gantry
Three models of crawler crane mounted type to meet wall length, wall thickness and excavation depth are provided and one model of low head gantry mounted type is provided.
Adoption of ELECTRO-MILL drill system
Combined mechanism of drum cutter and ring cutter eliminates uncut section and reverse inlet located at ring cutter enables prompt removal of cuttings after excavation.
Application to a variety of ground formation
Can apply to a sticky formation, a stiff layer, gravel and boulder layer by the use of rotary multi-horizontal cutter.
| SMX | |||||
|---|---|---|---|---|---|
| Wall Thickness | Wall Width | Drilling Depth | |||
| 650-1000mm | 2400mm | 70m | |||
BMX Method
Utilization of diaphragm wall trencher pursuing high efficiency and low noize by adopting hydro-transmission system
Features
Diaphragm wall with continuous wall
Can construct a continuous rectangular section wall by placing reinforced concrete.
Down-hole type trencher for ultra deep requirement
Has a feature to excavate 150 m depth.
Wide variation of crawler mounted type
Three models to meet wall thickness and length are provided.
Adoption of ELECTRO-MILL drill system
Combined mechanism of drum cutter and ring cutter eliminates uncut section and reverse inlet located at ring cutter enables prompt removal of cuttings after excavation.
Prevention of choking in reverse line by boulder crushing mechanism
Large gravels or rock fragments can be crushed by means of crushing plate and ring cutter to prevent choking in reverse line.
Application to a variety of ground formation
Can apply to a sticky formation, a stiff layer, gravel and boulder layer by the use of rotary multi-horizontal cutter.
| Type | BMX-120 | BMX-200 | BMX-240 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wall Thickness | 650-1200mm | 800-2000mm | 1000-2400mm | ||||||||
| Wall Width | 3200mm | 3200mm | 2400mm | ||||||||
| Drilling Depth |
|
||||||||||
EMX Method
Utilization of "Electro-Mill" diaphragm wall trencher playing an active part in large scale underground construction work
Features
Diaphragm wall with continuous wall
Can construct a continuous rectangular section wall by placing reinforced concrete.
Improvement of working efficieny
Submersible sand pump located nearby drum cutter is superseded suction pump and can improve working efficiency.
Generalization of base machine
Normal crawler crane instead of exclusive base machine can be used as base machine.
Improvement of trenching accuracy
Optional adjustable guide improves vertical accuracy
Full section cutting by unique cutting mechanism
Can ensure efficient excavation by eliminating uncut section.
Application to a variety of ground formation
Can apply to a sticky formation, a stiff layer, gravel and boulder layer by the use of rotary multi-horizontal cutter.
| Type | EMX-150 | EMX-240 | EMX-320 |
|---|---|---|---|
| Wall Thickness | 800-1500mm （1500-2000mm） |
1200-2400mm （1000-1200mm） |
2880mm |
| Wall Width | 3200mm | 2400mm | 3200mm |
| Drilling Depth | 150m | 150m | 150m |
Remarks) Item in parentheses in the table is optional.
TMW Method
Utilization of diaphragm wall machine with high working and mixing efficiency to enable to form even flat wall surface.
Features
Diaphragm wall by continuous column soil-mixing wall
Actualizes a continuous column wall with rectangular section by in-situ mixing the soil and cement with multi-augers.
Flat wall surface
Side wall cutter can complete the wall with flat side face by removing uncut section while excavating with auger heads.
High mixing efficiency
Combination of auger head with screw and mixing blade and effect of compressed air distributed through center drill stem ensures homogeneous mixing.
Increase of mixing productivity
Longer interval of auger shafts increases productivity of wall forming.
Stability of neighboring ground formation
Since the wall is formed without disturbing ground formation, environmental effect to the neighbor is minimal.
| Type | TMW-520 | TMW-600 |
|---|---|---|
| Wall Thickness | 550-650mm | 650-850mm |
| Shaft Interval | 520mm | 600mm |
| Drilling Depth | 60m | 60m |
