Immersed tube tunnel joint stretching value monitoring device and immersed tube tunnel joint stretching value monitoring method
An immersed tunnel and monitoring device technology, which is applied in water conservancy projects, artificial islands, underwater structures, etc., can solve problems such as easily damaged survey line connections, difficulty in displacement monitoring, and encroachment on building boundaries.
Inactive Publication Date: 2019-05-24
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 , image 3 with 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 an immersed tube tunnel joint stretching value monitoring device and an immersed tube tunnel joint stretching value monitoring method. The method includes forming reserved holes with a certain length in left and right concrete pipe joints on two sides of a tunnel joint respectively, wherein a stainless steel rod is mounted in the hole on one side while three stainless steelrods are mounted in the holes on the other side. The steel rods on two sides are in butt joint by three wireless displacement sensors and are connected to sensors through steel wires. Data are monitored by the three displacement sensors, so that the whole moving state of the pipe joints can be deduced and the tube tunnel joint stretching value can be calculated.
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...
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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