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A new type of concrete segment micro-reinforced pile for shield tunneling

A technology for shield tunnels and concrete pipes, which is applied to tunnels, tunnel linings, earthwork drilling, etc., can solve problems such as tunnel collapse, hidden dangers, and disconnection, and achieve the effects of improving bearing capacity, safe use, and increasing mechanical bite force.

Active Publication Date: 2020-12-25
CHONGQING UNIV
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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a new type of concrete segment micro-reinforcement pile for shield tunnels, which has the advantages of eliminating potential safety hazards in tunnel shield excavation, and solves the problem that if the surrounding soil Excessive settlement and deformation can easily lead to tunnel collapse and disjoint, posing serious safety hazards

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  • A new type of concrete segment micro-reinforced pile for shield tunneling
  • A new type of concrete segment micro-reinforced pile for shield tunneling
  • A new type of concrete segment micro-reinforced pile for shield tunneling

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] see Figure 1-5 , a new type of concrete segment micro-reinforced pile for shield tunneling, including a reinforced pile main body 1, and a pile body grouting port 2 is opened outside the reinforced pile main body 1. The diameter of the reinforced pile main body 1 is 90 mm, and the thickness is 10 mm. The pile body grouting openings 2 outside the main body 1 are alternately scattered and distributed on the right side of the reinforcement pile body 1, an...

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Abstract

The invention relates to the technical field of civil engineering tunnel shield construction equipment, and discloses a novel shield tunnel concrete pipe piece micro reinforcing pile. The novel shieldtunnel concrete pipe piece micro reinforcing pile comprises a reinforcing pile main body; a pile body grouting port is formed in the external of the reinforcing pile main body; a cover plate is fixedly connected to the left side of the reinforcing pile main body; a cover body grouting port is formed in the cover plate; a pipe wall connecting bolt is fixedly connected to the left side of the coverplate; and a core rod is fixedly connected into the reinforcing pile main body. In the novel shield tunnel concrete pipe piece micro reinforcing pile, through use of the method and the device, the mechanical performance of soil around tunnels can be effectively improved; and a whole is formed through grouting, so that the load bearing capacity is improved, the lining and soil integrity is greatlyimproved, the stress range of the reinforcing pile main body is widened, the excessive precipitation deformation is effectively prevented, potential safety hazards in shield tunneling are greatly eliminated, and the shield method is used more safely.

Description

technical field [0001] The invention relates to the technical field of shield construction equipment for civil engineering tunnels, in particular to a novel shield tunnel concrete segment miniature reinforcement pile. Background technique [0002] Tunnel construction is the abbreviation of the new Austrian tunnel construction method. It is a reasonable construction method proposed by Austrian scholars from the perspective of rock mechanics in the long-term tunnel construction practice. It uses spray anchor technology, monitoring measurement, etc. It is a new engineering construction method formed by a system formed with rock mechanics theory. [0003] At present, with the rapid development of traffic roads in our country, the construction of various mountainous highways and urban subways, the tunnel construction technology is becoming more and more mature, especially the shield method construction, which has many advantages such as safety, speed and high degree of mechanizat...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08E21D11/10E21D20/02E21D21/00
CPCE21D11/08E21D11/10E21D20/02E21D21/0026E21D21/0066
Inventor 刘新荣周小涵钟祖良王浩杨忠平梁宁慧李鹏
Owner CHONGQING UNIV
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