Cutting and removing underground obstacles in detail! We will introduce examples of sewer construction work.
This document is a collection of case studies on sewer construction by Yasuda Engineering Co., Ltd. The "Milling Mole Method," a trenchless construction method equipped with four special functions: "exploration, improvement, cutting, and guidance," consists of three devices: a tunneling machine, a special telescopic pipe, and a special injection pipe, allowing for the precise cutting and removal of underground obstacles. We have completed requests from our clients using this method. [Featured Cases] ■ Sewer pipe installation work in Chuo Ward, Tokyo (28 Seigo-2) ■ Sewer construction work near 3-chome, Tomikawa-cho, Nakagawa Ward, Nagoya City, Aichi Prefecture ■ Sewer construction work in the 7th section of the Onchigawa East drainage area, Yao City, Osaka Prefecture, fiscal year 2015 *For more details, please refer to the PDF document or feel free to contact us.
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【Construction Examples】 ■ Sewer pipe installation work in Chuo Ward, Tokyo (28 Harugo-2) - Underground obstacles: gravel, driftwood, iron powder - Contacted steel sheet piles just before reaching the target, cutting was completed without issues. ■ Sewer construction work near 3-chome, Tomikawa-cho, Nakagawa Ward, Nagoya City, Aichi Prefecture - Underground obstacles: excavated soil, pieces of driftwood, iron powder - To reach the special manhole, the tunneling machine had to be fully cut and retrieved, which made cutting the robust cutter head quite challenging. ■ Sewer construction work in the 7th section of the Onchigawa East drainage area, Yao City, Osaka Prefecture, fiscal year 2015 - Underground obstacles: metal fragments - It was discovered that there were PC piles in the thrust pipe section, and due to the difficulty of removal, this method was adopted. Cutting was done at a jack speed of 0.2mm. After cutting 2 planned PC piles, 2 new obstacles were confirmed, resulting in a total of 4 piles being cut, successfully reaching the target and completing the work. *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.