Equipped with enhanced shell bits that guarantee long-distance propulsion! Introducing examples of construction work.
We would like to introduce a case study of long-distance and curved thrust construction for a small soil cover, commissioned by Dazaifu City, Fukuoka Prefecture. The project involves the construction of a rainwater drainage system aimed at alleviating flooding damage. Additionally, it features high-precision construction using a real-time measurement system. 【Project Overview】 ■ Project Name: Construction of the Okuzono Rainwater Drainage System, Section 23-1 ■ Location: 1-chome, Gojō, Dazaifu City, Fukuoka Prefecture ■ Client: Dazaifu City ■ Contractor: Kido and Miyahara Joint Construction Enterprise ■ Method: Ultimate Slurry Shield Method ■ Pipe Diameter: Ф1800mm ■ Thrust Length: L=583.7m ■ Curve: R=192m CL=211m at one location ■ Soil Cover: H=1.65m (minimum soil cover) (0.77D) (D=pipe outer diameter) ■ Soil Type: Silty gravel ■ Construction Period: March 2012 to March 2013 *For more details, please feel free to contact us.
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【Features of the Construction】 ■ Construction of a rainwater drainage system aimed at alleviating flooding damage ■ Advancement under the main road leading to Dazaifu Tenmangu, famous for the deity of learning, with a cover of less than 1.0D ■ Long-distance advancement of 584m, including a small cover section of up to 300m and a curved section with a radius of 192m ■ Stability of the face ensured by mud-water type micro-pressure control (0.01MPa) ■ Reduction of thrust resistance through primary and secondary injection of the Ultimate Lubrication Injection System (ULIS) ■ Equipped with a reinforced shell bit to guarantee long-distance advancement ■ Safe construction of curves ensuring the safety of pipes using the Sempral Curve System ■ High-precision construction through a real-time measurement system ■ Safe protection of nearby buried objects (NTT underground cables) with a separation of 15cm *For more details, please feel free to contact us.
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Our company has been engaged in civil engineering projects across the country while inheriting the founder's intention of "developing and improving civil engineering technology." During this time, we introduced the thrust method for the first time in Japan in 1948, started our PC business in 1960, and established a local subsidiary in Taiwan in 2006 to begin our overseas expansion, thereby expanding our operations based on thrust method technology and PC technology.
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