Pre-buried groove channel

A technology for pre-embedding channels and channels, applied in tunnels, tunnel linings, wellbore linings, etc., can solve the problems of general fatigue resistance, non-compliance with requirements, slow pre-embedding speed, etc., so as to improve the installation speed and quality. Anti-corrosion ability, the effect of prolonging the service life

Inactive Publication Date: 2019-06-25
刘富全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Usually, in the pre-embedded channel in the shield tunnel, due to the large displacement during the pre-embedding process, the solidified channel is quite different from the design size of the drawing, the positioning accuracy is low, and the embedded speed is slow; in addition, The filling materials

Method used

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  • Pre-buried groove channel
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Embodiment 1

[0040] A pre-buried channel provided by this embodiment has a structure such as Figure 1-2 As shown, it includes the tank body, the anchor rod 1 and the filling strip. The tank body includes the channel 2 and the T-shaped bolt 3. The anchor rods 1 are evenly distributed on the top of the channel 2. The thickness of the end of the channel 2 provided with the anchor rod 1 is 2.5-3.0mm, the inner and outer surfaces of the channel 2 are coated with a zinc layer, the thickness of the zinc layer is 80μm-120μm, the surface of the zinc layer is coated with a water-soluble sealing paint layer, and the surface of the anchor rod 1 is a threaded structure , and the anchor rod 1 is riveted in the punching hole at the top of the channel 2 through a riveting machine, and the filling strip is set inside the channel 2, wherein:

[0041] Channel 2 is a C-shaped steel member with an arc-shaped opening facing downwards. Flanges 4 extend inward on both sides of the bottom of channel 2. Flanges 4 ...

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Abstract

The invention relates to a pre-buried groove channel. The pre-buried groove channel comprises a groove body, anchor rods and filling strips; the groove body comprises groove channels and T-shaped bolts; the anchor rods are uniformly distributed on the top ends of the groove channels; the filling strips are arranged inside the groove channels; the groove channels are arc C-shaped steel members withdownward openings; folding edges extend inwards from the two sides of the bottom ends of the groove channels; the folding edges are right angle folding edges, and form the parallel notches of the groove channels; the inner sides of the folding edges are provided with sawteeth; the tooth spacing of the sawteeth is 3 mm; punching holes are uniformly distributed in the top ends of the groove channels; the punching holes are matched with the anchor rods; the anchor rods are placed in the punching holes; the filling strips are matched with the groove channels; the filling strips are polyethylene foam strips and are charged into the groove channels; EV foam integrated tape with the width being 30 mm is arranged at the position of each of the parallel notches of the groove channels; gaps are left between the polyethylene foam strips and the EV foam integrated tape; and one ends of the T-shaped bolts are placed in the groove channels and are in occlusion with the sawteeth on the folding edges. The pre-buried groove channel according to the invention is simple in structure, convenient and fast to install and good in fatigue resistance and bearing capacity.

Description

technical field [0001] The invention relates to a pre-buried channel for fixed installation in a tunnel, belonging to the technical field of tunnel accessories. Background technique [0002] To fix the structural support in the tunnel, the traditional method in the past is post-planting anchor bolts. The method is: drill holes in the tunnel lining to plant bolts and fill them with cement; or use tunnel lining to drill holes and fill chemical glue to plant anchor bolts. In the method of planting anchor bolts, holes must be drilled on the tunnel lining, which will cause certain damage to the tunnel lining, and the degree of bonding between the filler and the concrete is far less than that of the overall concrete structure. The force has a great influence on the tunnel lining, the fire resistance of chemical anchors is poor, and the construction is inconvenient and the cost is high. Due to the many defects of post-planted anchors; now, pre-buried channels are generally used ins...

Claims

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Application Information

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IPC IPC(8): E21D11/00E21F17/00B23P15/00
Inventor 刘富全
Owner 刘富全
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