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High-speed construction method of tunnel lining concrete

A construction method and concrete technology, applied in the direction of tunnel lining, wellbore lining, earthwork drilling and mining, etc., can solve problems affecting the progress of concrete lining, etc., to overcome repeated removal of gravel materials and setting of construction roads, speed up construction progress, The effect of saving construction cost

Inactive Publication Date: 2009-09-02
CHINA GEZHOUBA GROUP CO LTD
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  • Summary
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is mainly to overcome the shortcomings of repeatedly removing gravel materials and setting construction roads in the construction method of pouring the bottom slab concrete first, and then pouring the side walls and top arch concrete for the tunnel full-section lining, and solve the difficult problem affecting the progress of the concrete lining; provide A rapid, economical and practical construction method for tunnel lining concrete

Method used

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  • High-speed construction method of tunnel lining concrete
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Embodiment Construction

[0010] Such as figure 1 , figure 2 Shown, the construction steps of the present invention are as follows:

[0011] 1. Install side wall top arch reinforcement

[0012] Utilize the floor gravel road 6 that has been formed during the excavation, and install the side wall top arch reinforcing bar 1 in sections. Small hole diameters can directly use gravel roads to install steel bars; for large hole diameters, steel bars can be installed by setting up a small traffic-accessible operating platform on gravel roads. The top arch reinforcement of the side wall is not affected by the slag cleaning of the bottom plate, and can be staggered with the bottom slag cleaning at the same time, or the top arch side wall reinforcement can be installed on multiple working surfaces at the same time;

[0013] When installing the side wall top arch reinforcement, since the reinforcement has no bottom support, it is necessary to drill holes and bury the bottom support 3 of the side wall reinforce...

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Abstract

The invention provides a high-speed construction method of tunnel lining concrete. The method comprises the following steps: mounting umbrella arch reinforcement bars of the side wall first; removing ballast of tunnel soleplates; mounting reinforcement bars of the tunnel soleplates; pouring concrete of the tunnel soleplates; and pouring umbrella arch concrete of the side wall or pouring gross section concrete. The method has the advantages of improving the utilization ratio of the ballast road paved before excavating, reducing the working faces formed by repeatedly backfilling and removing the ballast road, overcoming the defects of repeatedly removing the ballast and paving a construction road, ensuring the simultaneous concrete construction of a plurality of working faces for the same tunnel lining, speeding up the construction of tunnel lining concrete and saving construction cost.

Description

technical field [0001] The invention relates to a tunnel lining concrete construction method, in particular to a tunnel full-section lining concrete rapid construction method. Background technique [0002] At present, in the construction of tunnel full-section lining concrete, the floor concrete is generally poured first, and then the side walls and top arch concrete are poured. Clearing the tunnel floor gravel material before pouring the bottom slab concrete takes a long straight-line construction period; in addition, in order to facilitate the construction and transportation of the side wall and top arch concrete lining in the later stage, the construction lane is reserved when the tunnel bottom slab concrete is poured or the lined bottom slab concrete is laid The driveway is set with asphalt sand and gravel; the temporary driveway reserved for the floor or formed by laying on the concrete floor needs to be removed later. The clearing of temporary lanes and the setting of...

Claims

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Application Information

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IPC IPC(8): E21D11/04
Inventor 郭光文程志华
Owner CHINA GEZHOUBA GROUP CO LTD
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