ENGLISH site map Partners Net Contact Us HOME Technology / construction method DCM open cut (DOC) method Technology / construction method Other DCM open cut (DOC) method Overview The DCM Open Cut (DOC) method improves the quality of buildings by performing underground work on soft ground with high groundwater levels in a low-cost, safe and clean environment. By using a ground improvement method that uses cement slurry, it is a ground treatment technology that can realize large-scale open cuts on soft ground and at the same time provide good foundation ground. Type and method After improving the soft ground, steep slope excavation is possible, and open cuts with high steps can be safely constructed. A high-quality underground structure can be easily constructed by realizing an upright mountain retaining without a girder and securing a free working space. Since the soft ground is changed to artificial soft rock-like soil, there is no spring water or mudstone in the root cutting area, and a dry and clean working environment can be realized. Since mountain retaining work, pile work, ground improvement work, etc. can be carried out at the same time by this method, the number of works can be reduced, leading to shortening of construction period and cost reduction. By improving the ground in a grid pattern or over the entire surface, highly reliable liquefaction countermeasures can be taken. Since the improvement range is only directly under the building, it can be applied to a small site. The soft ground can be improved from low strength to soft rock condition according to the purpose, and it can be a good foundation ground for the structure. Pamphlet (PDF) Contact Us Technology / construction method Search from the structure Search from issues Search from technology Technology / construction method Waste incineration facility dismantling technology "Tracid System" In-situ soil cleaning technology "Flash bio construction method under existing building" Odor countermeasure construction method using a deep shaft Water-retaining pavement technology using incineration ash of sewage sludge Biodiesel Construction vehicle operation system using GPS Automatic dust control system Geoclean Works New Soil TOFT method Smart column construction method Construction quality visualization technology for ground improvement piles Multi-shaft deep mixing processing method (4-axis DCM-L method) Contaminated soil containment technology using deep mixing treatment method Deep mixing processing method (DCM method) DOC method Ground analysis / design evaluation technology (MuDIAN centrifugal experiment) Perm coat method RPC method Ground improvement composite pile method Quality control technology for continuous wall construction of underground dams Dam seismic evaluation technology Tenacious embankment "three-sided integrated embankment" Trapezoid-shaped CSG dam technology Obstacle cutting shield, branch shield technology Mountain tunnel lining curing balloon Centle curing management system Tunnel ground centralized management system Shrinkage reduction type medium fluid concrete Concrete curing management system Utilization of 3D model (3D data) for complicated construction Representative work dam Railroad Roads / tunnels / bridges Environment / water and sewage Land reclamation Ports / rivers Energy / airfield overseas CSR information Latest information top message CSR vision Toward the reconstruction of the disaster area Global environment Community Customer Employees / subcontractors Foreign operation group company report About us message Corporate philosophy vision Company Profile Code of conduct Privacy policy Environmental policy List of offices group archive Balance sheet / income statement Disclosure information of designated research institutes Employment information Hiring new graduates Know the company Know civil engineering Human resource development for Takenaka Civil Engineering Employment information Know employees Takenaka Civil Engineering Vision Career recruitment Contact Us Partners Net site map Privacy policy To all partner companies Copyright (c) 2014 TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO., LTD. All Rights Reserved.