Invention Grant
- Patent Title: Excavation status monitoring system for tunneling machine
-
Application No.: US14649715Application Date: 2013-11-12
-
Publication No.: US09932812B2Publication Date: 2018-04-03
- Inventor: Katsuya Sasaki , Keitaro Hidani , Kohei Takatori , Takuya Miwa
- Applicant: HITACHI ZOSEN CORPORATION
- Applicant Address: JP Osaka-shi
- Assignee: HITACHI ZOSEN CORPORATION
- Current Assignee: HITACHI ZOSEN CORPORATION
- Current Assignee Address: JP Osaka-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2012-285471 20121227
- International Application: PCT/JP2013/080530 WO 20131112
- International Announcement: WO2014/103542 WO 20140703
- Main IPC: E21B44/00
- IPC: E21B44/00 ; E21B45/00 ; E21D9/06 ; E21B47/09 ; G01H17/00 ; G01M99/00 ; G01H1/00 ; G01H3/00 ; E21D9/093
Abstract:
An excavation status monitoring system for a tunneling machine that includes a detecting portion mounted on a cutter head of the tunneling machine, including an accelerometer that detects a vibration or an acoustic sensor that detects a sound wave and a sound output portion that outputs a signal detected by the detecting portion as sound.
Public/Granted literature
- US20150300152A1 EXCAVATION STATUS MONITORING SYSTEM FOR TUNNELING MACHINE Public/Granted day:2015-10-22
Information query
