Novel tunnel segment structure and stress monitoring device thereof

Abstract

The invention discloses a novel tunnel segment structure and a stress monitoring device thereof, and relates to the technical field of tunnel laying and tunnel and underground engineering. According to the key points of the technical scheme, the novel tunnel segment structure includes novel lining segments capable of being spliced into unit tubes, sealing gaskets and pressure sensors, wherein thesealing gaskets and the pressure sensors are arranged at the junctions of the segments. The segments are in a cross shape, grooves and convex strips are arranged at the side edges of the segments alternatively and the segments are connected through the grooves and the convex strips in a joggle-joint mode to form a tunnel. The side walls of the segments are covered with rubber asphalt waterproof coating, and vulcanized ethylene-propylene rubber elastic sealing gaskets are arranged at the joints of the segments. The pressure sensors are arranged above the convex strips. Compared with the prior art, the sliding friction between the segments is increased through the cross-shaped segments, the pipeline structure is more stable, and the joggle-joint structure simplifies the construction process;meanwhile, a pressure monitoring device is additionally arranged for monitoring and recording the pressure subjected by the segments in real time for carrying out risk prevention, and further research is facilitated; and in addition, a waterproof system has certain reference value for the problem of water seepage.

Description

technical field [0001] This patent relates to the field of segment laying and tunnel and underground engineering technology, specifically a new type of segment and splicing structure and intelligent monitoring device and method. Background technique [0002] With the rapid development of my country's urbanization process, there is a huge demand for the construction of tunnels such as subways and river passages. In order to shorten the construction period and facilitate construction, prefabricated segments have become an extremely important means. The waterproofing of underground engineering has always been a hot issue discussed by researchers of underground tunnels. Moreover, the joints between segments and pipes are the most vulnerable places in the tunnel, which are prone to water seepage, dislocation, and cracks. The following reasons are as follows: due to water seepage, the bent bolts connecting the segments are oxidized and the stiffness is reduced, which directly affe...

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Problems solved by technology

[0005] The purpose of the patent of the present invention is to provide a new type of tunnel segment structure and its pressure monitoring device, which can reduce segment displacement, enhance the stability of shield tunnel lining structure, and monitor segment pressure in real time to prevent risks. At the same time, the setting of the new waterproof system can reduce the seepage through the gaps caused by the regular laying of the segments, and solve the problem of instability of the segments under complex terrain conditions

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