We will introduce a case study of water supply construction that involves finely cutting and removing underground obstacles!
This document is a collection of case studies on water supply construction by Yasuda Engineering Co., Ltd. The underground obstacle-responsive mud-based thrusting method "Milling Mole Method," equipped with four special functions: "exploration, improvement, cutting, and guidance," consists of three devices: a tunneling machine, a special expandable pipe, and a special injection pipe, allowing for the precise cutting and removal of underground obstacles. We have completed requests from customers using this method. [Featured Cases] ■ Installation of water supply main around Hanjin-cho, Sasebo City, Nagasaki Prefecture (No. 6) ■ New installation of water supply main (500mm) and replacement of water supply main (600mm) from Nishidai 2-chome to Nishidai 1-chome in Itabashi Ward, Tokyo ■ Improvement work on the Shinjo trunk line (Higashiyodogawa 3) 700mm water supply pipe (installation of 1000mm water supply pipe) and others *For more details, please refer to the PDF document or feel free to contact us.
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【Construction Examples】 ■ Nagasaki Prefecture, Sasebo City, Construction of Water Supply Main Pipe Laying around Hanjin Town (Part 6) - Underground obstacles: Steel sheet pile cutting debris - After starting, the first obstacle (Steel sheet pile Type III) was cut at about 40m, and after approximately 7m of normal advancement, the second obstacle (Steel sheet pile Type III) was cut, allowing the remaining 15m to be reached through normal advancement. ■ Tokyo Metropolitan Area, Itabashi Ward, New installation of a water supply main (500mm) between Nishidai 2-chome and Nishidai 1-chome, and replacement of a water supply main (600mm) - Underground obstacles: Metal fragments - Due to the confirmation of a 300mm H-beam in the push route, construction was carried out using this method, cutting what appeared to be steel sheet piles of 817mm, H-beam 400mm, and H-beam 350mm. ■ Osaka Prefecture, Osaka City, Improvement work on the Shinjo trunk line (Higashiyodogawa 3) 700mm water supply pipe (installation of 1000mm water supply pipe) and others - Underground obstacles: Wood fragments, metal fragments - Although the design was for open-cut construction, due to the presence of wooden piles under the Nishijima Bridge and wooden piles and steel sheet piles under the Masushima Bridge, the design was changed, resulting in the cutting of 6 wooden piles and 2 steel sheet piles. *For more details, please refer to the PDF document or feel free to contact us.
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【Purpose】 ■To finely cut and discharge underground obstacles *For more details, please refer to the PDF document or feel free to contact us.
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Yasuda Engineering Co., Ltd. has been a specialized company in public sewer construction, contributing to the environmental development of the local community since its establishment in 1975. We have pursued sound management and advanced technical capabilities, continuing to make steady progress. In 2001, we acquired the international standard "ISO9001" and expanded into the field of general civil engineering. We aim to be a corporate group capable of continuous innovation as a comprehensive construction company, including building construction. "Honing our technology with rich sensibility, we evaluate from a fair perspective to enhance the vitality of the company in order to meet our customers' needs." This is the management policy of Yasuda Engineering Co., Ltd. We, Yasuda Engineering Co., Ltd., are committed to uniting all employees to refine our technical skills and create a new future.
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