Burial structure of infiltration area monitoring device and underground sensor
The permeation area monitoring device with underground sensors addresses the issue of excavation additive and slurry leakage by providing real-time monitoring and control, reducing ground surface deformations and leakage.
JP2026111782APending Publication Date: 2026-07-06OHBAYASHI GUMI LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- OHBAYASHI GUMI LTD
- Filing Date
- 2024-12-24
- Publication Date
- 2026-07-06
Smart Images
Figure 2026111782000001_ABST
Abstract
The objective is to monitor the excavation additives or drilling fluid that seeps into the ground from the shield tunneling machine and to determine the extent of the impact. [Solution] A permeation area monitoring device for monitoring the permeation area of excavation additives or slurry water that has permeated into the ground from a shield tunneling machine based on the water quality of soil moisture, comprising: an underground sensor embedded in the lost mud layer of the ground to measure the water quality of soil moisture; and a data logger connected to the underground sensor to output the measured value measured by the underground sensor, wherein multiple underground sensors are arranged for each measurement cross section perpendicular to the tunnel axis, which is set at intervals in front of the tunnel excavation direction.
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Citation Information
Patent Citations
Method for measuring displacement of ground surface or subbase course in case of shield excavation and method and device for controlling displacement of subbase course
JP2003013687A