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Fabricated arched channel made of ultra-high-performance concrete

An ultra-high performance, concrete technology, used in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of small span and heavy structure, and achieve the effect of reducing the weight of the structure, high construction level, and cost reduction.

Inactive Publication Date: 2018-12-07
ANHUI TRANSPORT CONSULTING & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing prefabricated reinforced concrete passages have problems such as heavy structure and small span.

Method used

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  • Fabricated arched channel made of ultra-high-performance concrete
  • Fabricated arched channel made of ultra-high-performance concrete
  • Fabricated arched channel made of ultra-high-performance concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: It is suitable for the span channel structure below 12m, and the prefabricated arch piece is 1 / 2 oval.

[0035] A prefabricated ultra-high-performance concrete arched channel, including a prefabricated foundation 1, an installation groove 2 is arranged on the prefabricated foundation, a prefabricated arch piece 3 is installed in the installation groove, the prefabricated arch piece is made of ultra-high performance concrete, and the prefabricated foundation is made of ordinary concrete , the thickness of the prefabricated arch plate is 0.15m~0.35m, the segment length is 2~3m, the width of the installation groove is 10cm larger than the width of the arch piece, and the depth is 20cm. The installation groove is filled with a higher grade of ultra-high performance concrete to form a whole. And do waterproof treatment.

Embodiment 2

[0036] Embodiment 2: On the basis of Embodiment 1, the present invention proposes another embodiment: for a 12m-20m span channel structure, there are two prefabricated arches 3, and the prefabricated arches are 1 / 4 oval.

[0037] Including the prefabricated foundation 1, there is an installation groove 2 on the prefabricated foundation, the prefabricated arch piece 3 is installed in the installation groove, the end face of the joint connected by the prefabricated arch piece is provided with a toothed shear key 4, and a notch 5 is reserved in the middle of the joint, and the notch Reserve 5cm thick bottom support at the bottom6.

[0038] The tooth-shaped shear keys are bonded together by epoxy resin, and the epoxy resin between the shear keys is spread evenly, with a thickness of 2-3mm.

[0039] Bolt holes 7 are reserved on both sides above the joints where the prefabricated arch pieces are connected, and the two prefabricated arch pieces are connected by crossing bent bolts 8 ...

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PUM

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Abstract

The invention discloses a fabricated arched channel made of ultra-high-performance concrete. The fabricated arched channel comprises prefabricated foundations; mounting grooves are formed in the prefabricated foundations; prefabricated arched pieces are mounted in the mounting grooves; the interiors of the mounting grooves are cast and compacted through the high-grade ultra-high-performance concrete to form a whole; and waterproof treatment is conducted. According to the fabricated arched channel made of the ultra-high-performance concrete, the mounting grooves are formed in the foundations, after the prefabricated foundations and the prefabricated arched pieces are mounted, the high-grade ultra-high-performance concrete is cast in place in the mounting grooves in a unified mode, and the arched pieces and the foundations are connected into the whole structure.

Description

Technical field: [0001] The invention relates to the field of channel structure engineering, in particular to an assembled ultra-high-performance concrete arched channel. Background technique: [0002] There are many passages and culverts in our country and their types are complex. Large-scale culverts constructed by the traditional pouring-in-place method, due to scattered construction points, uneven construction levels, construction is affected by material turnover cycle, concrete age, etc., the quality is not easy to control, and the construction progress is easily restricted by weather, seasons and other factors. Replacing the construction process of prefabricated concrete culverts poured on site by factory-based centralized prefabrication and on-site installation of standard components can avoid the above-mentioned disadvantages and is in line with the direction of industrialization, standardization, and industrialization in the field of engineering construction. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08
CPCE21D11/08E21D11/083
Inventor 杨大海胡可丁楠汪志甜朱俊杨凯谢玉萌李剑鸾
Owner ANHUI TRANSPORT CONSULTING & DESIGN INST
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