Reinforcement structure and construction method suitable for partition wall in double-arch tunnel

A reinforced structure and double arch technology, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems affecting construction efficiency, large excavation sections, uneven control requirements, etc., to ensure construction and operation safety, improve The ability to disperse stress and improve the effect of anti-distortion ability
CN110388218BActive Publication Date: 2021-04-16SHANDONG UNIV +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2021-04-16

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Abstract

The invention discloses a reinforcement structure and a construction method suitable for a partition wall in a double-arch tunnel, which comprises at least four steel webs, and the star flower-shaped cross-section formed by welding a plurality of steel webs in sequence greatly improves the reinforcement. The embedding ability of the structure and the partition wall, the contact area between the reinforced structure and the rock and soil mass, and the improvement of the overall anti-distortion ability of the structure. On both sides of each steel web, grouted steel flower tubes are installed. Through pressure grouting and enhanced compactness between the reinforced structure and the rock-soil mass, the side frictional resistance is greatly increased to control the uneven settlement of the partition wall. Steel ribs and vibrating wire earth pressure cells are arranged on both sides of each steel web. The vibrating wire earth pressure cell above the rib can realize the real-time monitoring of the force of the reinforced structure, combined with the conventional monitoring and measurement of the partition wall, the stable state of the partition wall can be grasped more comprehensively.
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Description

technical field

[0001] The invention relates to the technical field of multi-arch tunnel construction, in particular to a reinforcement structure and a construction method suitable for a partition wall in a double-arch tunnel. Background technique

[0002] Due to its space-saving, smooth line, beautiful appearance, and ability to overcome terrain obstacles, the double-arch tunnel has become one of the tunnel forms often used in mountainous road tunnels and urban short tunnels in recent years. Compared with ordinary single-arch tunnels, the biggest difference between double-arch tunnels is that the two arches are connected by a partition wall. Therefore, the partition wall becomes an important force-bearing component of a multi-arch tunnel, and its stability is very important. It is directly related to To the construction safety, construction progress and operation safety of the double-arch tunnel. Therefore, it is necessary to strengthen the partition wall to improve the st...

Claims

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