Shield jamming reason and position detection method for shield tunneling machine

• Main Authors: FU JIE, WU DUN, YIN XUANWEI, XIA YIMIN, XIAO JING, LIN LAIKUANG, YANG MINGJIN, LIU YUJIANG, HE YUANFU
• Format: Patent
• Language: Chinese; English
• Published: 19.08.2022
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention provides a shield jamming reason and position detection method for a shield tunneling machine, relates to the field of detection, and aims at detecting the strain of the inner wall of a shield body when the shield body of the shield tunneling machine is jammed, loading a thrust cylinder to a limit thrust, analyzing the strain value change and distribution rule of each area of the shield body, and combining a finite element analysis result to determine the jamming reason and position of the shield body of the shield tunneling machine. According to the nondestructive detection method provided by the invention, the construction cost is reduced, the detection efficiency and accuracy are improved, and a reliable basis is provided for subsequent escape treatment. 本发明提供了一种盾构机盾体卡死原因与位置检测方法，涉及检测领域，针对盾构机盾体在卡死时，对盾体内壁应变检测，通过将推进油缸加载到极限推力，分析盾体各区域应变值变化与分布规律，结合有限元分析结果，进而确定盾体卡死原因与位置，本申请提供的无损检测方法，降低施工成本，提高检测效率和精确度，为后续脱困处理提供了可靠依据。