Intelligent waterproof and anti-seismic immersed tunnel pipe joint
An immersed tube tunnel and intelligent technology, applied in water conservancy projects, underwater structures, buildings, etc., can solve the problems of reduced overall seismic performance, impact on waterproof performance, waterproof and seismic defects, etc., to improve earthquake resistance, ensure waterproof requirements, Improve overall effect
Active Publication Date: 2022-04-08
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
However, the joint connection structure of the above-mentioned immersed tube tunnel has some defects in waterproof and earthquake resistance.
For example, after the pipe joints of the immersed tube tunnel are docked, the uneven stress on the pipe joint section may lead to a decrease in the overall seismic performance; during long-term use, due to external forces such as seabed waves, the slight deformation or misalignment between the pipe joints will affect the waterproof performance; Know whether there is water between the GINA waterstop and the OMEGA waterstop, and thus cannot accurately take waterproof measures in advance
Method used
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[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited to the following embodiments.
[0037] In the intelligent waterproof and anti-seismic immersed tube tunnel pipe joint provided in this embodiment, the structure of the joint is as follows: figure 1 and figure 2As shown, the connected sections 1 are laid sequentially, and Gina waterstop 2 and Omega waterstop 3 are arranged at the joints between adjacent sections. A pumping pipe 10 is pre-buried in the segment, one end of the pre-buried pumping pipe leads to the Omega water stop, and the other end is provided with a pumping device. When an abnormal displacement occurs between a certain segment, it is necessary to consider whether there has been a water leakage (due to the backfilling of the immersed tube tunnel, the water leakage usually occurs at the top of the tunnel), GINA wate...
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The invention provides an intelligent waterproof anti-seismic immersed tunnel pipe joint which comprises an intelligent displacement sensor which is installed in an installation hole of a joint part and can monitor abnormal displacement in a tunnel in real time. The embedded clamping grooves are uniformly distributed at the joint part; and the adjusting units are in one-to-one correspondence with the positions of the embedded clamping grooves. And the adjusting unit is connected with the pre-embedded clamping groove, after installation is completed, the adjusting rod and the pre-embedded clamping groove are pre-tensioned through the adjusting motor and the electric jack, the integrity of the pipe joint can be effectively improved, and then the overall anti-seismic capacity of the immersed tunnel is improved. And the control unit can give an alarm in time when the deformation exceeds the allowable displacement threshold data. Once the deformation exceeds the allowable displacement threshold data, the calculation module can be automatically started to calculate the adjustment value, and the control module and the adjustment unit are controlled to complete automatic adjustment and increase the tensile stress between the sections at the abnormal displacement, so that the waterproof requirement is ensured.
Description
technical field [0001] The invention provides an intelligent waterproof and anti-seismic immersed tube tunnel joint, in particular relates to an immersed tube tunnel joint capable of automatically micro-adjusting the distance between sections to realize the waterproof function, and belongs to the technical field of civil engineering. Background technique [0002] With the rapid advancement of my country's urbanization process, a large number of long tunnels have been built or planned in the alluvial plains, river deltas and offshore areas in the central and eastern parts of my country. Immersed tube tunnel is a common form of the above-mentioned tunnels. Immersed tube tunnel has low requirements on the foundation, and is especially suitable for engineering sites where soft ground, shallow riverbed or seabed are easy to excavate foundation trenches with water dredging facilities. Due to its small buried depth, the total length of the tunnel line including the connecting secti...
Claims
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IPC IPC(8): E02D29/07E02D29/16E02D31/02G01B21/02G08B21/18
Inventor 阮滨叶宜培吉瀚文龙晓鸿马永涛苗雨
Owner HUAZHONG UNIV OF SCI & TECH