Joint device for segmented tunnel in ground fissure site and construction method of joint device

Abstract

The invention discloses a joint device for a segmented tunnel of a ground fracture site and a construction method of the joint device. The joint device comprises a first waterproof mechanism, and the first waterproof mechanism is arranged between a first tunnel lining and a second tunnel lining in the axial direction of the segmented tunnel; the second waterproof mechanism is arranged at the notch of the adjacent segmented tunnel, and the third waterproof mechanism is arranged at the notch of the adjacent segmented tunnel and is close to one side of the inner surface of the segmented tunnel; the fourth waterproof mechanism is arranged at the notch of the adjacent segmented tunnel and located on the inner surface of the segmented tunnel. The sliding connection mechanism is arranged at the notch of the adjacent segmented tunnel and is located between the second waterproof mechanism and the third waterproof mechanism; a first connecting sleeve in the sliding connecting mechanism can freely slide in the vertical sliding rail in the diameter direction of the segmented tunnel, and a second connecting sleeve can freely slide in the horizontal sliding rail in the diameter direction of the vertical segmented tunnel. The device is good in waterproof effect, high in strength and controllability and sensitive in deformation feedback.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering protection, in particular to a joint device and a construction method for segmental tunnels on ground fissure sites. Background technique [0002] In recent years, with the rapid advancement of urbanization, the urban population density has increased rapidly, and ground transportation is facing tremendous pressure; in the case of increasingly tight urban land resources, in order to effectively alleviate urban congestion, many cities are seeking development underground Space, and vigorously promote the construction of urban subways; however, due to the different geological conditions faced by different cities, their differences and complexity lead to many challenges in the construction of urban subways. [0003] The protection of subway tunnels on ground fissure sites is a big problem. Because the slow movement of ground fissures will cause differential settlement of the upper and lower ...

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Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a joint device and its construction method for segmental tunnels in ground fissure sites, so as to solve the problem that the existing segmental tunnel joints only consider tension and compression deformation, and its strength And the controllable type is low, the waterproof effect is seriously affected when the deformation is large, and the technical problem of the deformation feedback sensitivity is poor

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