Waterproof test device for shield tunnel duct piece joints

Abstract

The invention discloses a waterproof test device for shield tunnel duct piece joints. The waterproof test device for the shield tunnel duct piece joints comprises three unit base plates and a plurality of sets of unit embedded plates, wherein the three unit base plates are installed in a way of being matched with one set of unit embedded plates; a groove is formed in each unit embedded plate; a sealing pad is arranged in a way of being embedded into the groove, and is projected out of the plate surface of the unit embedded plate; the three unit base plates are inarched and form a dismountableT-shaped structure; sealing pads on the three unit base plates are tightly pressed with each other and are sealed; a T-shaped water accommodating cavity is formed at the inner side of the sealing pads; a water injection hole and a water outlet hole which communicate with the T-shaped water accommodating cavity are formed in the unit base plate and the unit embedded plates in a penetrating way; thewater injection hole is connected with a water pressure control system; the water outlet hole is connected with a water pressure gauge; and the plurality of sets of embedded plates are applicable todifferent dimensions of the sealing pads. The unit embedded plates with different dimensions can be replaced to be used according to the waterproof sealing pads with different dimensions; and the function of one device for performing various waterproof tests can be realized, so that the utilization rate of the waterproof test device is improved.

Description

technical field [0001] The invention relates to the technical field of shield tunnel engineering, in particular to a waterproof test device for shield tunnel segment seams. 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. Shield tunnels, as the main form of tunnels, play an important role. The waterproof problem of underground engineering has always been concerned by the majority of technical personnel, and for shield tunnels, due to long-term immersion and corrosion by groundwater, waterproof performance is very important. The waterproofing of the shield tunnel is not only related to the normal function of the tunnel, but also related to the length of the service life of the tunnel. Shield tunnel waterproofing includes segment self-waterproofing, seam waterproofing and hand hole waterproofing. Among them, segmental lining blocks are prod...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing shield tunnel segment joint waterproof test devices are one test device corresponding to one size of waterproof gasket, and it is impossible to use one joint waterproof test device to test joint waterproof gaskets of different sizes, which results in This leads to a great waste of resources and cannot meet the increasing requirements of shield tunnel seam waterproof tests

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