Urgent danger avoiding air bag system used between shield tail brushes and urgent danger avoiding method of urgent danger avoiding air bag system
A technology for emergency hedging and shield tunneling, which is used in earth-moving drilling, mining equipment, tunnels, etc. It can solve problems such as slow blocking effect and shield tail locking, improve safety, prevent dangerous situations, and reduce grease. effect of dosage
Inactive Publication Date: 2021-07-23
中建八局轨道交通建设有限公司
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Problems solved by technology
[0003] In order to overcome the defects in the prior art, an emergency avoidance airbag system and an emergency avoidance method for shield tail brushes are provided to solve the problem of when the shield tail brush fails during the advancement of the shield machine. , the conventional remedial measures have the problem of slow blocking effect or easy to cause the tail of the shield to lock
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[0026] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0028] refer to Figure 1 to Figure 4 As shown, the present invention provides an emergency avoidance airbag system for the shield tail brush room, including: an airbag body 1, an air compressor 2, a pressure sensor and a controller.
[0029] In this embodiment, three shield tail brushes are inst...
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The invention discloses an urgent danger avoiding air bag system used between shield tail brushes and an urgent danger avoiding method of the urgent danger avoiding air bag system. A pressure sensor is used for collecting the pressure value between the shield tail brushes in real time, a controller is connected to the pressure sensor and an air compressor, after receiving the pressure value collected by the pressure sensor, the controller sends the pressure value to the air compressor, whether the pressure value exceeds a threshold value or not is judged on the basis of the threshold value preset in the controller, and after the pressure value exceeds the threshold value, the controller starts the air compressor to convey air into an air bag body, so that the air bag body expands and blocks a gap between the rear shield tail brush and the outer wall of a laid duct piece. The problem that in the shield tunneling machine propelling process, when a shield tail brush loses efficacy, a conventional remedial measure is slow in blocking effect or the shield tail is prone to being locked is solved.
Description
technical field [0001] The invention relates to the technical field of shield tunneling, in particular to an emergency avoidance airbag system and an emergency avoidance method for a shield tail brush room of a shield machine. Background technique [0002] During the shield propulsion process of the existing shield machine, due to the strong pressure or abnormal posture of the shield machine, the deformation ability of the shield tail brush is poor, and the gap between the shield tail is large, which leads to the failure of the shield tail brush and the leakage of the shield tail Slurry, water gushing and sand gushing and other safety risks. In the case of shield tail brush failure, the conventional remedial measures are only to increase the amount of grease injection through the shield tail grease system or to grout the shield tail through the grouting hole in the inner segment of the shield tail. The former of these two methods has the disadvantage of slow sealing effect,...
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Login to View More IPC IPC(8): E21D9/06
CPCE21D9/0635
Inventor 王强寇芙蓉朱湘旭
Owner 中建八局轨道交通建设有限公司