Dangerous falling rock protection combined stone falling wall structure and construction method thereof

Abstract

The invention relates to a dangerous falling rock protection combined stone falling wall structure and a construction method thereof. The structure comprises an existing shed tunnel supporting structure at one side of a high steep slope, wherein the existing shed tunnel supporting structure comprises existing pier bodies, an existing shed tunnel main beam, a secondary beam and a cover plate whichare longitudinally arranged, wherein the existing shed tunnel main beam, the secondary beam and the cover plate are arranged above the existing pier bodies; new pier bodies are arranged between the existing pier bodies in the longitudinal direction of a route, a horizontal girder is longitudinally arranged above the new pier bodies; a horizontal beam is arranged on a side near a mountain perpendicular to the direction of the horizontal girder, the horizontal girder and the horizontal beam are arranged above the existing shed tunnel cover plate; a vertical longitudinal stone falling panel is longitudinally arranged above the horizontal girder, a transverse rib plate of the stone falling wall is arranged above the horizontal beam, an anchor cable anchoring into the mountain is arranged in the transverse rib plate of the stone falling wall. By adopting an engineering structure comprising reinforced concrete components to deal with the problem of dangerous falling rock protection on the high steep slope, the problems that the construction cost of the multi-line shed tunnel is high, the protection height of the stone falling structure on the steep slope is low, the falling rock can be spanned, the falling rock is difficult to overhaul and clean are solved.

Description

technical field [0001] The invention belongs to the technical field of railway engineering construction, and in particular relates to a combined rock-blocking wall structure for protection against falling dangerous rocks and a construction method thereof. Background technique [0002] The construction of railways inevitably encounters dangerous rockfalls on high and steep slopes. In the mountainous areas of southwest my country and Tibet, the terrain of high and steep slopes is steep, and a large number of dangerous rockfalls are distributed, which has a great impact on operational safety. [0003] Rockfall protection methods for railways and highways mostly use slope brushing, metal rock nets, tunnel open holes, multi-line shed holes, gravity rock blocking walls, pile plate rock blocking walls, rail fences, etc. and their combination methods. The calculation of the rockfall trajectory shows that the rockfall trajectory will hit the newly built parallel multi-strand roads on...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a combined stone barrier wall structure for protection against falling dangerous rocks and its construction method, so as to solve the safety problems caused by the height of the existing rock barrier structure less than 20m, the high cost of the multi-line shed structure and the insufficient protection range. increased risk problem

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