Tunnel inverted arch integral and self-propelled type long trestle structure and construction method

Abstract

The invention provides a tunnel inverted arch integral and self-propelled type long trestle structure and a construction method. The tunnel inverted arch integral and self-propelled type long trestlestructure comprises a front end approach bridge, a rear end approach bridge, a driving walking system, a driven walking system and a main bridge. The driving walking system supports at the front end of the main bridge through a front end fixing and supporting device, and the driven walking system supports at the rear end of the main bridge through a rear end fixing and supporting device. One end of the front end approach bridge is connected with the front end of the main bridge, and one end of the rear end approach bridge is connected with the rear end of the main bridge. A modularized structure capable of being disassembled and installed rapidly is adopted, the structural design is reasonable, and the bearing capacity is large; the influence on a tunnel face construction is small; the investment of labor cost and equipment cost of the inverted arch construction is reduced, and the cost is reduced; the construction efficiency is improved, and the period of the tunnel construction is shortened; and construction joints of an inverted arch are reduced, the integrity of the inverted arch is improved, and the quality of inverted arch concrete is improved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a structure and a construction method of a tunnel inverted arch integral body and a self-propelled long trestle bridge. Background technique [0002] Inverted arches in traditional tunnel construction use ordinary trestles, and their automation is very low and displacement is difficult. In addition, when the inverted arch trestle is used for construction, the construction space of the lower part of the trestle is relatively narrow, and most of them can only be paved manually, so the inverted arch and filling cannot be poured separately, which violates the principle that the inverted arch is used to bear the force and the filling is used to buffer the load of the train. The original intention of the design. Contents of the invention [0003] The object of the present invention is to provide a structure and construction method of a tunnel inverted arch integral body ...

AI Technical Summary

Problems solved by technology

[0002] In the traditional tunnel construction, the inverted arch adopts ordinary trestle bridge, and its automation degree is very low, and the displacement is relatively difficult

In addition, when the inverted arch trestle is used for construction, the construction space of the lower part of the trestle is relatively narrow, and most of them can only be paved manually, so the inverted arch and filling cannot be poured separately, which violates the principle that the inverted arch is used to bear the force and the filling is used to buffer the load of the train. original design

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