TUCSS Monthly Seminar no. 251

Event details

TUCSS Monthly Seminar No. 251 – Thursday, 18 April 2024, 6.30 pm

As-built TBM Automated Surveying Technology using Unmanned Segment Roundness Measurement System

by Mr. S. Shiotani, Enzan Koubou Co., Ltd and Mr. D. Nakaike, Keisokugiken Co., Ltd

Abstract

The construction industry is currently facing an increasing demand for unmanned data acquisition processes instead of manual surveying during tunnel excavation. The automatic segment roundness measurement system, which was presented at the UGS 2021 conference, has been improved and provided a powerful solution to address this issue. This system leverages a laser distance meters to automatically measure the horizontal and vertical deviations from the original tunnel-segment position in addition to the tunnel roundness. As a result, it is capable of capturing the changes in these deviations and roundness with the tunnel advance, enabling the real-time visualization of the as-built tunnel structure for both the contractor and the client. By concurrently monitoring the TBM machine position, the system can additionally track changes in tail clearance. This information can be promptly utilized by the contractor to prevent interference between the machine and the segments during tunnel assembly and excavation, thereby avoiding segment cracks and water leakage and finally ensuring high-quality tunnel construction. Furthermore, the newly developed as-built TBM automated surveying technology can be integrated with the ARiGATAYA system (provided by Enzan Koubou Co. Ltd), which is frequently employed in TBM tunnel projects in Singapore.

Speakers

Mr. Shiotani is currently working at Enzan Koubou Co., Ltd. Singapore Branch as a senior technical manager. He has pursued his undergraduate and master program in Advanced Material at Kindai University, Japan. After graduating in 2013, he started to work at Enzan Koubou Co., Ltd where developing advanced ICT solutions for domestic and foreign customers to solve their problems pertaining to construction and civil engineering especially for tunnelling. Since then, he has experienced measurement works and tunnel related project for over 10 years both in Singapore and Japan.

Mr. Nakaike is currently working at Keisokugien Co., Ltd. In Japan, where providing a total consulting in construction works such as structural inspection, repairing design and development of new measurement technologies to satisfy their customers’ needs and social demand. He studied Earthquake-resistant structure and Earthquake disaster prevention in Kyoto University and obtained his Bachelor of Engineering (Architecture). Since he has joined Keisokugiken Co., Ltd, he experiences a lot of works for measurement and instrumentation, project management for structural investigation and business development both in Japan and overseas.

Time and Place

The presentation will take place electronically on Thursday, 18 April 2024 at 18:30 hrs. The presentation will take approximately 45 minutes, follow by 15 minutes of questions/discussion.

Invitation

This is the 251^st in a series of presentations by TUCSS and is open to current TUCSS Members only. Seats are on first-come-first-served basis and limited to 500 persons.

Registration

Individual Members are to sign up for the seminar via their TUCSS account on the TUCSS Website. The details on how to access the seminar will be sent to the members who has successfully signed up for the seminar, at a date nearer to the seminar. The deadline for registration is on Tuesday, 9 April 2024 or when total registered participants reaches 500 whichever comes earlier.

*TUCSS Corporate Members limited to 5 registrations only. For TUCSS Corporate members, please email us the following information (name, TUCSS Corporate membership number, company name, email address, PE/RE/RTO number if applicable).

Attendance Policy

For members who require certificate of attendance, please note of the attendance policy:

-        Login at the beginning of the seminar (link will be assessable at 18:15 hours)

-        Evidence of participation by video switched on throughout the seminar

-        Complete the quiz at the end of the seminar before logging out. The duration for the quiz is 15mins.

Certificate of Attendance will be uploaded to the member’s account after the compliance to the Attendance Policy is verified.

PDU/STU

Points have been applied and pending approval.

Speaker

S. Shiotani

Enzan Koubou Co., Ltd

D. Nakaike

Keisokugiken Co., Ltd