Temporary support device for fault fracture zone mountain tunnel steel arch

A technology of fracture and broken zone and temporary support, which is applied in tunnels, tunnel linings, shaft equipment, etc., can solve problems such as affecting construction progress and engineering safety, unable to provide supporting force for steel arches, and initial lining collapse, etc., and achieves convenient dismantling. , The effect of reasonable force and convenient connection

Pending Publication Date: 2018-04-24
TONGJI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the primary lining collapse accidents often occur in the project, which seriously affects the construction progress and project safety.
[0004] At present, in order to limit the convergent deformation of the tunnel, ...

Method used

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  • Temporary support device for fault fracture zone mountain tunnel steel arch
  • Temporary support device for fault fracture zone mountain tunnel steel arch
  • Temporary support device for fault fracture zone mountain tunnel steel arch

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Embodiment Construction

[0035] The technical scheme of the temporary support device for the steel arch frame of the mountain tunnel in the fractured and broken zone provided by the present invention will be further described below in conjunction with specific embodiments and accompanying drawings. The advantages and features of the present invention will become clearer in conjunction with the following description.

[0036] It should be noted that the embodiments of the present invention have better implementability and are not intended to limit the present invention in any form. The technical features or combinations of technical features described in the embodiments of the present invention should not be regarded as isolated, and they can be combined with each other to achieve better technical effects. The scope of the preferred embodiment of the present invention may also include other implementations, and this should be understood by those skilled in the art to which the embodiments of the presen...

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Abstract

The invention provides a temporary support device for a fault fracture zone mountain tunnel steel arch, and belongs to the technical field of tunnel structure safety. The supporting device comprises two end part fixing devices, a flexible supporting rod, and a control box; both ends of the flexible supporting rod are connected with one end part fixing device respectively, and the middle part of the flexible supporting rod is provided with the control box. The flexible supporting rod is used for adjusting the dimension of the whole supporting device, and controlling the distance between two endpart fixing devices, thus the two end part fixing devices are located at left and right sides of the cross section of a tunnel; the control box is used for slightly adjusting the length of the flexible supporting rod. The temporary support device is mainly applicable to a lining supporting device at the fault fracture zone of a mountain tunnel, and slightly adjust according to the stress and deformation feature change of the steel arch, thus the steel arch is reasonable in stress; the connection between the end part fixing devices and the steel arch is convenient and fast for not requiring complex fixing procedures; moreover, the temporary support device is convenient to mount and dismount, and access of the vehicle and other mechanical devices is not influenced.

Description

technical field [0001] The invention belongs to the technical field of tunnel structure safety, and in particular relates to a temporary support device for a steel arch frame, which is suitable for the initial lining steel arch support structure when the mining method tunnel construction passes through the fractured zone. Background technique [0002] In the construction of mountain tunnels, the new Austrian method is generally used as the theoretical basis, that is, based on the maintenance and utilization of the self-supporting capacity of the surrounding rock, anchor rods and shotcrete are used as the main support means to support in time and control the surrounding rock. The deformation and relaxation of the surrounding rock make the surrounding rock an integral part of the support system. However, during the construction process, it was found that due to the complex and changeable geological conditions of the surrounding rock, the self-supporting capacity of the surroun...

Claims

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Application Information

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IPC IPC(8): E21D11/18
CPCE21D11/18
Inventor 廖少明周文锋刘孟波程池浩陈孝华孙勇潘长洪何群华周海刚
Owner TONGJI UNIV
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