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Device and method for supporting concrete strip of flexible formwork for tunnel laid coal conveying pipeline

A technology of flexible templates and coal pipelines, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as limited working space, mutual interference in construction, and difficulty in mechanical matching, and achieve enhanced stability, integrity and stability Good performance and fast construction speed

Inactive Publication Date: 2013-08-14
WUHAN DESIGN & RES INST OF CHINA COALTECH & ENG GROUP
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AI Technical Summary

Problems solved by technology

[0002] At present, the difficulty in the construction of small-section tunnels is that the excavation section is small, the working space is limited, the mechanical matching is difficult in slag loading and transportation, and the construction of various processes interferes with each other, such as excavation support and secondary lining construction, etc.

Method used

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  • Device and method for supporting concrete strip of flexible formwork for tunnel laid coal conveying pipeline
  • Device and method for supporting concrete strip of flexible formwork for tunnel laid coal conveying pipeline

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Embodiment Construction

[0019] Accompanying drawing is embodiment of the present invention.

[0020] Below in conjunction with accompanying drawing, content of the present invention is described in further detail:

[0021] refer to figure 1 and figure 2 , a tunnel type laying coal pipeline flexible formwork concrete strip support device, the device is composed of a coal pipeline, flexible formwork, concrete sill, fine soil, gravel, anchor rods, and pallets, and the tunnel is a straight wall semicircular arch The section is connected with the double-layer flexible formwork 2 through an anchor rod 6 and another anchor rod 7 and a tray 8 on the semi-circular arch section of the straight wall, and the inner cavity of the double-layer flexible formwork 2 is filled with concrete 3, and the coal pipeline 1 is laid On the lower right side of the tunnel, backfill and bury with fine soil 4, and backfill and bury with gravel 5 on the left lower side of the tunnel.

[0022] Shotcrete strip support device for...

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Abstract

The invention discloses a device and a method for supporting a concrete strip of a flexible formwork for a tunnel laid coal conveying pipeline. The device comprises the coal conveying pipeline, the flexible formwork, a concrete arch, fine earth, broken stones, anchor rods and sprayed concrete. A strip arch support comprises an anchor arch support and a bolting-wire mesh-shotcreting support, the anchor arch support structurally comprises the anchor rod, a compound arch and a flexible formwork arch, the compound arch and the flexible formwork arch are connected through the anchor rod to form a compound beam structure, bending resistance and stability of the flexible formwork arch are enhanced, the bearing capacity of the compound arch serves as an emergency capacity in design, and the bolting-wire mesh-shotcreting support structurally comprises an anchor rod, a reinforcing mesh and the sprayed concrete. Structural stability of the anchor arch support is better than that of an anchor bolt-spray support and a lining support, the support structure is high in construction speed, stable, high in strength and convenient to operate and is widely used for underground tunnel engineering, construction period is shortened, the formwork does not need to be removed, and cost is saved.

Description

technical field [0001] The invention relates to a tunnel support device, in particular to a tunnel type laying coal transportation pipeline flexible formwork concrete strip support device and method. Background technique [0002] At present, the difficulty in the construction of small-section tunnels is that the excavation section is small, the working space is limited, the mechanical matching is difficult in slag loading and transportation, and the construction of various processes interferes with each other, such as excavation support and secondary lining construction. Therefore, it is required that the machinery for excavation construction and support construction should be miniaturized, the construction should be accelerated, the construction period should be shortened as much as possible, and the interference between various processes should be reduced. Contents of the invention [0003] The object of the present invention is to provide a tunnel-type flexible formwork...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21D11/00
Inventor 于新胜徐龙卿谢宁郭玉龙
Owner WUHAN DESIGN & RES INST OF CHINA COALTECH & ENG GROUP
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