Shield tunneling method that allows for the selection of the face stability mechanism according to ground conditions.
The "Composite Shield Method" is a shield that has a mechanism allowing for the selection of the face stability method according to the conditions of the ground. With a single shield, for ground conditions suitable for earth pressure type shields, stability of the face can be achieved using plastic fluidized excavated soil within the chamber, and for ground conditions suitable for slurry type shields, stability of the face can be achieved using slurry, making it a shield with a wide range of adaptability to ground conditions. 【Features】 ■ A single shield can select a face stability mechanism that corresponds to the soil conditions. ■ In gravel ground, gravel can be directly crushed by a crusher, enabling fluid transport. *For more details, please download the PDF or contact us.
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【Construction Achievements】 ■Project Name: Futaba Area Pepenai Waterway No. 1 Tunnel Construction ・Client: Hokkaido Development Bureau ・Shield Outer Diameter: Φ2680mm ・Construction Length: 750m ■Project Name: Auxiliary Public Sewer Construction Project Pipeline Construction ・Client: Gunma Prefecture ・Shield Outer Diameter: Φ2140mm ・Construction Length: 1158m, etc. *For more details, please download the PDF or contact us.
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At Nishimatsu Construction Co., Ltd., we primarily engage in construction, development, and real estate businesses. With over 140 years of long history and tradition since our founding, we leverage our advanced technological capabilities as our strength to undertake the construction of public facilities such as roads and dams, as well as urban redevelopment, contributing to the development of safe and secure social infrastructure and comfortable environments. We aim to build win-win relationships with all stakeholders by providing valuable buildings and services, and we will contribute to the creation of a sustainable society and environment where people can live with peace of mind.