Sanwa Multi-Shafts Auger Series

Sanwa Multiger series has plural output shafts to apply for retaining walls and /or soil consolidation (stabilization) using agitating auger flight and head. In this works, cement slurry is injected to ground through swivel device in Multiger and hollow stem in agitating auger flight and head. Existing soil is mixed and agitated with slurry by means of agitating flights and head that are connected with plural output shafts of Multiger. From this series, clients have established their own methods such as CDM, JST, SMW etc.

Drive Unit	Number of Rod Shaft	Pitch between Shafts (mm)	Electric Motor	Rotation Speed	Rated Torque	Weight
Model			Output×Unit×Pole	@4P (rpm)	@8P (t-m)	(ton)
MAC-120-3A	3	450	45kw×2×4/8P	45.2	2.11	9.7
MAC-160-2S	2	800/1000/1200	55kw×2×4/8P	38.6	3.32	9.1
MAC-200-2S	2	800/1000/1200	75kw×2×4/8P	38.6	4.53	10.0
MAC-240-2S	2	800/1000/1200	90kw×2×4/8P	38.6	5.44	10.7
MAC- 80-3J	3	450	30kw×2×4/8P	41.2	1.24	5.8
MAC-120-3J	3	450	45kw×2×4/8P	45.1	1.59	7.5
MAC-150-3J	3	450	55kw×2×4/8P	39.9	2.15	9.5
MAC-200-3J	3	600	75kw×2×4/8P	37.5	3.12	10.5
MAC-240-3J	3	600	90kw×2×4/8P	37.5	3.75	11.2
MAC-220-5J	5	450	55kw×3×4/8P	45.2	1.71	11.5

Please note that some products may be subject to small changes due to continuous studies into design and performance.

Soil cement-mixing wall method for making the soil-cement wall that does in situ by using the multi shaft auger equipment developed specially, by injection of cement slurry from the point and mixing it with the existing soil for making the soil-cement wall.As a soil cement-mixing wall of continual one body, the complete lap being able to point to the bored hole mixing axis of the element edge to the next element,it keeps creating.
As for the Soil cement-mixing wall, it is possible to utilize wide-ranging in the waterproof earth retaining wall, in the resistance earth retaining structure and the dead water wall. Standard wall thickness of Soil cement-mixing wall method is Ø550- 650mm and Ø850mm. In case ofØ850mm walls, it is superior in yield waterproof characteristic and high reliability at deep retaining structure.
As for the Soil cement-mixing which it operates the based machine, the earth auger, the screw and the plant which responds to purpose combining with the optimum. For example, when it is the hard ground where the preceding pre-boring is necessary, changing to the single auger screw for pre-boring.

1	High waterproof effect
Soil cement-mixing wall is uniform with the unique mixing mechanism which provides the mixing wing and the traveling wing alternately. Furthermore because the elements is jointed each other with lap system, it is superior in waterproof characteristic in comparison with conventional method.
2	Little influence for circumference area foundation, no ground subsidence
Because of Mixing-agitating with cement slurry is performed in situ earth in order to create the soil cement wall, looseness and collapse of the hole wall quite are little, the influence for circumference area foundation such as ground subsidence has decreased.
3	Shortening in term of works
Because In site earth mixing system with one process, period of works is shorten in comparison with conventional method, and superior in economical efficiency.
4	High Liability
Standard mixing column diameter is Ø550 - 650 mm, but to correspond to the much deeper requirement recently, mixing column diameterØ850 - 900 mm has become possible due to the reinforcing material having big section modulus be able to insert. As for depth of wall longest are 67.5 m.

1)Soil Retaining Wall Soil mixing wall, consists only the soil cement when and, are times when it is constituted by with the reinforcing material (H shaped steel beam, sheet-pile, concrete product and others). Wide-ranging utilization becomes possible by inserting the reinforcing material as an earth retaining wall and a resistance earth pressure structure.
	Retaining wall with Flying Arch Method		Deep Earth

2)Deep Mixing Method
For Cement Slurry Deep Soil Mixing Method
Features ； Required strength is surely obtainable Reduction in project period No settlement due to consolidation No contamination, No pollution Applicable various soil materials and layers Cost effectiveness Others

Typical equipment for Cement Slurry Deep Soil Mixing Method
Mixing Dia.(mm)	Classified Depth	< 10m	< 20m	< 30m	< 40m	< 45m
ø1000mm ×2columns	Soil Mixing Drive Unit	45kW ×2shafts	50~60kW ×2shafts	75~90kW ×2shafts	90kW ×2shafts	90kW ×2shafts
ø1200mm ×2columns	Soil Mixing Drive Unit	75~90kW ×2shafts	90kW ×2shafts	90~110kW ×2shafts	90~110kW ×2shafts	-
ø1300mm ×2columns	Soil Mixing Drive Unit	90kW ×2shafts	90~110kW ×2shafts	90~110kW ×2shafts	-	-