Auxiliary mounting device of tunnel vault steel arch
A technology for installing devices and steel arches, which is applied in the direction of tunnels, tunnel linings, shaft equipment, etc., can solve the problems of unguaranteed construction accuracy, heavy manual workload, and high labor costs, and achieve simple structure, high installation efficiency, and guaranteed installation The effect of precision
Pending Publication Date: 2020-06-05
CHANGAN UNIV
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Problems solved by technology
[0007] Aiming at the technical problems existing in the prior art, the present invention provides an auxiliary installation device for the steel arch frame of the tunnel vault to solve the problem of large manual workload, high labor cost and low construction efficiency during the installation process of the steel arch frame in the tunnel. And the technical problems that the construction accuracy cannot be guaranteed
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[0049] This embodiment provides an auxiliary installation device for a tunnel arch steel arch, including a supporting plate, the supporting plate is a U-shaped supporting plate, and the U-shaped supporting plate is made of a steel plate; the U-shaped supporting plate is installed on the middle spiral through connecting bolts. At the top of the pipe fittings, the U-shaped support plate can rotate around the connecting bolts to adjust the horizontal angle of the vault arch when installing; the inner wall of the middle threaded pipe fittings is provided with internal threads, the outer wall of the internal threaded pipe fittings is provided with external threads, and the outer wall of the intermediate threaded pipe fittings The internal thread interacts with the external thread of the internal threaded pipe fitting. The first rotating handle is set on the external spiral pipe fitting, and the second rotating handle is set on the base. Turning the first rotating handle and the secon...
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The invention discloses an auxiliary mounting device of a tunnel vault steel arch. The auxiliary mounting device comprises a supporting plate. The bottom of the supporting plate is rotationally connected with the top end of a middle spiral pipe fitting, and the supporting plate is used for lifting the to-be-mounted steel arch. An internal spiral pipe fitting is vertically arranged in the middle spiral pipe fitting in a penetrating manner, an external spiral pipe part is vertically arranged on the outer side of the middle spiral pipe fitting in a sleeving manner, the middle spiral pipe fittingcan vertically move up and down along the inner wall of the external spiral pipe fitting, and the internal spiral pipe fitting and the middle spiral pipe fitting are in threaded connection. The internal spiral pipe fitting is fixedly connected with a base, the external spiral pipe fitting is rotationally connected with the base, and the base is rotationally connected with a base bottom plate. As the supporting plate is arranged, the steel arch is lifted, the supporting plate is rotationally connected with the middle spiral pipe fitting, and the angle of the steel arch can be conveniently adjusted; and through the combined arrangement of the internal spiral pipe fitting, the middle spiral pipe fitting and the external spiral pipe fitting, the middle spiral pipe fitting rises and falls, thevertical height of the steel arch is adjusted, and the mounting precision of the steel arch is guaranteed.
Description
technical field [0001] The invention belongs to the technical field of tunnel construction, in particular to an auxiliary installation device for a tunnel vault steel arch frame. Background technique [0002] With the rapid development of my country's transportation field, more and more tunnel projects have been developed and utilized, and various complex geological types of tunnels are emerging. In complex geological tunnels, CD, CRD, and double-side-wall pilot pit methods are generally used. Compared with the step method, the above-mentioned construction methods can effectively reduce the excavation risk, ensure the stability of the tunnel face, and reduce the surface settlement caused by excavation. When using this type of construction method in the construction process, it is generally necessary to divide the tunnel into different small sections for partial excavation, reduce the exposed area of the tunnel face, erect steel arches in time, and carry out initial support...
Claims
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IPC IPC(8): E21D11/40E21D11/18
CPCE21D11/18E21D11/40
Inventor 王亚琼周海孝王志丰高启东任锐张士朝宋晓李培军
Owner CHANGAN UNIV
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