Tunnel contact channel tunneling device and method by means of flexible sleeve launching and receiving

Abstract

The invention discloses a tunnel contact channel tunneling device and method by means of flexible sleeve launching and receiving. The tunneling device comprises a tunneling device, a supporting trolley, a flexible launching sleeve system, a flexible receiving sleeve system and a moving device, wherein the moving device is installed on the supporting trolley, supports the flexible launching sleeve system and the tunneling device and is used for making the flexible launching sleeve system and the tunneling device move front and back in the contact channel launching axis direction; and the flexible launching sleeve system and the flexible receiving sleeve system are correspondingly connected with main tunnel segments on the launching side and the receiving side. According to the method, the posture can be adjusted mainly through the adaptability of the flexible sleeve system according to launching and receiving of a tunneling machine, meanwhile, the flexible sleeve system is conveniently connected with the main tunnel segments and disconnected with the main tunnel segments, and cut tunnel portal segments are conveniently taken out. Compared with existing similar equipment and method, the device and method have the advantages of being high in adaptability, high in construction efficiency, completely controllable in construction risk and the like.

Description

technical field [0001] The invention relates to the field of tunnel construction equipment, in particular to a tunnel communication channel excavation equipment and method for starting and receiving by means of a flexible sleeve. Background technique [0002] Tunnel communication channel is a channel designed to connect two tunnels. If there is a sudden problem in one tunnel, such as drainage and operating equipment stop running due to failure, pedestrians can transfer to another tunnel through the connecting passage for quick escape and rescue. Taking the situation of connecting passages of urban rail transit tunnels as an example, the "Subway Design Code" (GB50157-2013) stipulates that "two single-track interval tunnels should have connecting passages, and the distance between two adjacent connecting passages should not be greater than 600m ". At present, the total mileage of subways planned and constructed in many cities across the country is nearly 8,000 km, and there ...

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Problems solved by technology

[0004] At present, the purely mechanical shield tunneling method or pipe jacking method is still in its infancy, and the related technologies are not yet complete. There are the following defects: (1) The traditional rigid sleeve is affected by the construction process, machining accuracy, various Butt mismatch problems caused by deformation and measurement errors are not easy to install and connect, which affects work efficiency; (2) When relying on the cutter head to cut the main tunnel segment at the portal, the cutter head directly cuts the main tunnel segment and easily deviates from the excavation axis. Moreover, the cutting efficiency is not high, and it takes a long time, which causes a large amount of ground subsidence in the receiving stage; (3) During the construction process, if there is an accident at the portal, it is urgent to expose the working surface for processing, and the closed rigid sleeve is removed after installation. It is difficult to open the socket

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