The SEMW DSM Series is engineered for in-situ improvement of soft ground through deep soil mixing. A dual-shaft drilling and mixing system introduces cement slurry into the soil and mechanically blends the materials to form treated soil columns for foundation reinforcement.
Four configurations—DSM180, DSM220, DSM370 and DSM500—allow foundation contractors to match drilling diameter, depth, rotary torque and shaft spacing to the design and construction environment.
SEMW deep soil mixing equipment configuration with twin drive heads.Two rotating shafts and mixing blades work through the soil while cement slurry is introduced, improving the distribution of binder within the target treatment zone. The drilling tool configuration supports coordinated penetration and mixing.
Model-specific drill-pipe center distances give engineers options for pile layout and treatment geometry. The DSM370 is available with 1050, 1150, 1250 and 1450 mm center-distance arrangements.
The three-channel grouting rotary joint combines slurry and gas pathways. Automatic mixing, delivery and monitoring help control slurry supply alongside drilling and lifting operations.
Compare drilling geometry and power requirements to identify a suitable configuration for the planned soil improvement works.
| Parameter | DSM180 | DSM220 | DSM370 | DSM500 |
|---|---|---|---|---|
| Maximum single-shaft drilling diameter | Ø800 mm (customizable) | Ø1300 mm | Ø1500 mm | Ø1800 mm |
| Drilling depth | 32 m | 18 m | 30 m | 30 m |
| Number of drill shafts | 2 | 2 | 2 | 2 |
| Drill-pipe center distance | 1400–2400 mm (200 mm increments) | 1000 / 1100 / 1200 mm | 1050 / 1150 / 1250 / 1450 mm | 1250 / 1500 / 1700 mm |
| Rated motor power | 90 × 2 kW | 110 × 2 kW | 185 × 2 kW | 250 × 2 kW |
| Maximum drill-pipe torque | 45 kN·m (up to 68 kN·m configuration) | 82 kN·m | 120 kN·m | 180 kN·m (up to 195 kN·m configuration) |
| Drill-pipe rotation speed | 19–38 r/min | 19–45 r/min | 15–45 r/min | 13–39 r/min |
| Approximate equipment weight | 27 t | 30 t | 35 t | 37 t |
Working configuration, ground conditions and the complete rig combination should be reviewed before final equipment selection.
The auger drive assembly uses separate lifting frames, a backplane and lifting blocks. The system can be used as a single-shaft arrangement or combined into a dual-shaft mixing configuration, depending on the model and working requirements.
Independent delivery passages support the transfer of cement slurry and gas through the rotating assembly. The upper air inlet and side slurry inlet are designed to connect with the treatment process.
Dual drill pipes and mixing blades support the mixing process. Conical drill-tool geometry and blade arrangements are designed to support drilling and thorough binder-soil blending.
The construction management system coordinates drilling operations with slurry preparation, delivery and construction data collection. It provides an integrated view of key construction parameters to support process control.
Monitor drilling rotation, speed adjustment, current loading, mast inclination and operating status.
Set water–cement ratio and dosing parameters, coordinate slurry pump flow with drilling and lifting speed, and control pipeline flow transitions.
Capture drilling depth, speed, slurry flow rate, pressure and selected machine status data. Recorded data can be reviewed for construction process analysis, including remote visibility through supported mobile or computer interfaces.
Soft-ground treatment for artificial islands, coastal structures, piers and shoreline works where improved soil behavior is required.
Ground reinforcement for retaining structures, embankment foundations and foundation construction in soft soil conditions.
Soft ground treatment for selected tunnel approaches and civil engineering projects, subject to geotechnical design and site access.
Application suitability depends on ground investigation, mixing design, target strength, binder specification and on-site quality verification.
Field photography highlights crawler-mounted foundations equipment, high mast structures and mixing-head arrangements used in ground improvement work.
Confirm soil strata, groundwater, target strength, permeability and the design purpose of the mixed columns.
Establish pile diameter, center-to-center spacing, depth, overlap geometry and site constraints.
Assess rotary torque, power supply, cement slurry facilities, rig configuration, quality control and site logistics.
The four models differ in maximum drilling diameter, drilling depth, rated motor power, rotary torque and drill-pipe center-distance configurations. The DSM500 has the largest listed maximum drilling diameter and rated motor power, while the DSM180 has a specified drilling depth of 32 m.
The equipment drills into the soil while introducing and mixing cement slurry with the in-situ ground. The cement binder hardens and reacts with soil components to form improved ground. Performance depends on mix design, geology, construction control and testing.
Yes. The available center distances vary by model. DSM370 supports 1050, 1150, 1250 and 1450 mm configurations; other models have their own specified spacing options.
Provide the geotechnical report, target treatment depth, pile diameter and spacing, binder mix requirements, performance criteria, access constraints and available site utilities so the equipment configuration can be reviewed.
SEMW provides deep foundation equipment and engineering-oriented product support. Share your foundation design, treatment depth, target column geometry and ground conditions to discuss a suitable DSM Series configuration.
Contact SEMW for technical enquiries · Explore SEMW foundation equipment
한국어
中文
