本文介绍了日本最近新开发的大深度地下连续墙钻进精度控制装置的构成、特点、开发经过和实验结果。该装置能够测量钻机的水平位移和扭转,并具有测量精度校正功能。现场施工测量结果与超声波孔壁测定结果基本一致,证实了新开发装置的实用性。 This paper introduces the composition, characteristics, development process, and experimental results of a recently developed large-scale deep underground continuous wall drilling precision control device. The device can measure the horizontal displacement and torsion of the drilling rig and has a measurement accuracy correction function. The on-site construction measurement results are basically consistent with the ultrasonic hole wall measurement results, confirming the practicality of the newly developed device.