A device and method for monitoring the opening amount of joints of immersed tube tunnels
A technology of immersed tube tunnels and monitoring devices, which is applied in the test of buildings, artificial islands, and foundation structures, and can solve problems such as encroaching on building boundaries, inconvenient on-site installation, and difficult displacement monitoring.
Inactive Publication Date: 2020-07-17
南昌市政公用工程项目管理有限公司 +1
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Problems solved by technology
[0003] Because the existing monitoring method adopts rigid connection, the displacement monitoring accuracy of pipe joints under horizontal and vertical movement is high, but it is difficult to monitor the displacement of pipe joints under opening and torsion, and there are still inconveniences in on-site installation, encroaching on building boundaries, testing Problems such as exposed sensors that are easily damaged and inconvenient connection of measuring lines have become technical problems that need to be solved urgently
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[0027] The preferred implementation of the present invention will be described in detail below with reference to the accompanying drawings.
[0028] The opening amount monitoring device of the immersed tube tunnel joint in this embodiment is as follows: figure 1 , figure 2 and image 3 As shown, reserved holes of a certain depth are respectively set in the concrete pipe joints inside the GINA waterstop of the pipe joint 2 of the immersed pipe joint 1 of the tunnel, and an adjustable steel support 4 is installed in the reserved holes. Install a stainless steel rod 6 on the adjustable steel support 4 on one side, install three stainless steel rods 6 in the hole on the other side, use steel wire 7 to connect three wireless displacement sensors 8 with the steel rods on both sides connect.
[0029] The calculation method of the three-way displacement meter is as follows: Figure 4 As shown, the displacement gauge part is taken out separately, and the formed part is a triangula...
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The invention discloses a device and a method for monitoring the opening amount of an immersed tunnel joint. The concrete pipe joints on the left and right sides of the tunnel joint are respectively provided with reserved holes of a certain depth, and a stainless steel pipe is installed in one of the holes. Rod, install three stainless steel rods in the holes on the other side, use three wireless displacement sensors to connect the steel rods on both sides, and connect the steel rods and the displacement sensors through steel wires, and monitor the data through the displacement of the three displacement sensors. , which can not only infer the overall movement state of the pipe joint, but also the opening amount of the pipe joint.
Description
technical field [0001] The invention relates to a tunnel detection device, in particular to a monitoring device for monitoring the moving state and opening amount of immersed tube tunnel joints. Background technique [0002] The opening amount of the immersed tunnel joint can directly reflect the operating state of the connected components at the immersed tunnel joint, specifically including the compression state of the GINA waterstop at the pipe joint joint and the relative displacement of the shear key, and can evaluate the water-stop performance of the GINA waterstop in real time and The stress state of the shear bond. The opening amount of the joints of the existing immersed tube tunnel is to install a displacement gauge bracket at the joint after the pipe joints of the immersed tube tunnel are placed, and three displacement sensors installed on the support form a three-way displacement gauge, which can measure the joints respectively. The relative displacement in the t...
Claims
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IPC IPC(8): E02D33/00E02D29/16E02D29/073
CPCE02D29/073E02D29/16E02D33/00E02D2600/10
Inventor 邓建新朱江华郭俊余小强姜国栋张国柱童立元刘松玉徐向春
Owner 南昌市政公用工程项目管理有限公司