Construction Method of Tunnel Steel Frame Support

A construction method and steel frame technology, applied in tunnels, earthwork drilling, tunnel lining, etc., can solve the problems of low construction safety and poor overall bearing capacity, and achieve the advantages of convenient process, improved overall bearing capacity and improved stability. Effect

Active Publication Date: 2019-04-26
CCFEB CIVIL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a tunnel steel frame support construction method to solve the technical problems of poor overall bearing capacity and low construction safety existing in the existing support steel frame

Method used

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  • Construction Method of Tunnel Steel Frame Support
  • Construction Method of Tunnel Steel Frame Support
  • Construction Method of Tunnel Steel Frame Support

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Embodiment Construction

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0028] refer to figure 1 , figure 2 with Figure 5 , the preferred embodiment of the present invention provides a tunnel steel frame support construction method for forming a support steel frame in the tunnel 10 to support surrounding rock, the tunnel steel frame support construction method includes the following steps:

[0029] S10: Preliminary preparation work: S101: According to the tunnel construction drawing, design, process and shape each section of I-beam 50, straight anchor pipe with locking feet 20, connecting steel rods 30 and connecting steel bars 40 to form the supporting steel frame, among which, the straight cylindrical locking feet The anchor pipe 20 is hollow and connected at both ends, and its outer circle is processed with a plu...

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Abstract

The invention discloses a tunnel steel frame support construction method, which comprises the following steps: processing and forming each section of I-beam, locking foot straight anchor pipe, connecting steel rod and connecting steel bar to form the supporting steel frame; Assembled and erected a steel frame at the position of the frame and welded and positioned by the preset positioning anchor rod; a straight anchor tube with locking feet was installed on both sides of the arch foot of each steel frame and on both sides of the side wall foot, and Weld and fix the exposed end of the straight anchor pipe with locking feet and the I-shaped steel; use the connecting steel rod to pass through the installation hole on the I-shaped steel, so that the two ends of the connecting steel rod are connected with the corresponding two straight cylindrical anchors with locking feet. The joints of the connecting steel rod and the I-beam and the straight anchor pipe with lock feet are welded firmly; the two adjacent steel frames are connected by connecting steel bars; cement mortar is injected into the exposed end of the straight anchor pipe with lock feet to Anchoring; after the frame of the supporting steel frame is constructed, spray concrete on the frame of the supporting steel frame to completely cover the frame of the supporting steel frame.

Description

technical field [0001] The invention relates to the field of infrastructure construction of highways, urban roads and water diversion projects, and in particular relates to a tunnel steel frame support construction method. Background technique [0002] The steel frame support is the initial support for controlling the deformation of the surrounding rock and preventing collapse after the excavation of the tunnel or tunnel. The steel frame relies on "passive support" to maintain the stability of the surrounding rock. Under the circumstances, the steel frame is essential to maintain the stability of the surrounding rock. [0003] With the rapid development of my country's economy and the continuous advancement of infrastructure construction of highways, urban roads and water diversion projects, the construction of tunnels or tunnels is an indispensable construction content. In special rock and soil sections, the construction of tunnel or tunnel steel frame support is more diffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/14E21D20/02E21D11/10
CPCE21D11/10E21D11/14E21D20/021
Inventor 刘文胜谢开武刘勇吴灿彬刘佳
Owner CCFEB CIVIL ENG
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