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Testing device for extruding and lining of concrete

A test device and concrete technology, applied in the direction of applying stable tension/pressure to test the strength of materials, material inspection products, etc., can solve the problems of affecting the degree of surface settlement and high comprehensive cost, so as to reduce the cost of tunnel lining, save labor, Effect of suppressing land subsidence

Active Publication Date: 2015-04-08
中铁华隧联合重型装备有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this lining method, not only is each ring of segments spliced ​​by multiple pieces, but also there are seams between each ring, so that groundwater will continue to infiltrate along the joints; secondly, because the segments are prefabricated, the outer There must be a gap between the surface and the excavated rock wall, and the quality of grouting directly affects the subsidence of the ground surface; in addition, prefabricated segments require segment molds, and the overall cost is relatively high

Method used

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  • Testing device for extruding and lining of concrete
  • Testing device for extruding and lining of concrete
  • Testing device for extruding and lining of concrete

Examples

Experimental program
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Embodiment 1

[0030] Embodiment 1: see figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 , The concrete extrusion lining test device includes an outer layer cylindrical mold 1 and an inner layer cylindrical mold 9, both of which are mutually fitted and have a clearance fit. The rear ends of the outer layer cylindrical mold 1 and the inner layer cylindrical mold 9 are sealed by an end cap 11, and the center of the end cap 11 is provided with a hole for supporting and capable of sliding fit. Both the outer layer cylindrical mold 1 and the inner layer cylindrical mold 9 are formed by butt jointing of multiple ring-shaped unit bodies. Wherein, each segment unit body of the inner cylindrical mold 9 is a ring structure formed by splicing and fixing six arc-shaped templates, and the six arc-shaped templates are respectively an upper template 17, four side templates 18 and a lower template 19. And each unit body of the inner cylindrical mold 9 is provided with a concrete pouring port ...

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Abstract

The invention discloses a testing device for extruding and lining of concrete, which includes inner and outer layer barrel-shaped dies, a propelling device, an extruding device, an inner template assembling machine and other parts. The testing device disclosed by the invention can realize continuous seamless formation during extruding and lining the concrete, can realize timely filling of gaps between an excavated rock wall and the inner templates by the concrete, can inhibit ground settlement during practical use, can lower the lining cost of a tunnel, can realize automatic accurate assembling of the inner templates, is labor saving , can realize pressure detection for the concrete, and can realize lining strength detection of the concrete as well as onsite observation of the lining quality.

Description

technical field [0001] The invention belongs to a concrete extrusion lining device, in particular to a concrete extrusion lining test device. Background technique [0002] At present, the lining of tunnels at home and abroad basically adopts specific forms of prefabricated segments, and completes the entire ring segment assembly lining through mechanical structures. In this lining method, not only is each ring of segments spliced ​​by multiple pieces, but also there are seams between each ring, so that groundwater will continue to infiltrate along the joints; secondly, because the segments are prefabricated, the outer There must be a gap between the surface and the excavated rock wall, and the quality of grouting directly affects the subsidence of the ground surface; in addition, prefabricated segments require segment molds, and the overall cost is relatively high. Contents of the invention [0003] The purpose of the present invention is to provide a concrete extrusion l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/38G01N3/10
Inventor 张宁川宁向可周小磊肖俊祥卓兴建
Owner 中铁华隧联合重型装备有限公司
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