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Construction process of primary lining trolley in high-risk rock tunnel and lining trolley device

A technology for lining trolleys and construction technology, applied in tunnel lining, tunnel, wellbore lining, etc., can solve problems such as slow project progress, and achieve the effect of ensuring progress and quality

Pending Publication Date: 2017-12-22
LUOYANG GAOFEI BRIDGE MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The excavation distance of high-risk and high-risk rock tunnels is short. When digging two meters, reinforcement, support, and first lining are required immediately. Due to the danger of landslides and rockfall, construction personnel cannot carry out construction under the open section to avoid slow progress of the project , construction safety accidents, and improvement of construction technology; in view of the above reasons, a construction technology of first lining trolley-lining trolley device for high-risk rock tunnel is proposed

Method used

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  • Construction process of primary lining trolley in high-risk rock tunnel and lining trolley device
  • Construction process of primary lining trolley in high-risk rock tunnel and lining trolley device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The trolley for the first lining of the high-risk rock tunnel is set as the front section and the rear section, and at least three portal frames 3 are set in the front section and the rear section of the trolley for the first lining of the high-risk rock tunnel; The rear ends of the two base frames are respectively equipped with a hydraulic lifting system 2, the front parts of the two base frames are respectively equipped with a hydraulic lifting system 2, and the bottom of the hydraulic lifting system 2 is respectively equipped with a trolley traveling device 1;

[0021] Two parallel guide rails are longitudinally arranged between the upper trolley traveling device 6 and the upper part of the door frame 3, the upper trolley traveling device 6 is arranged above the front part of the guide rail, and the hoist 11 is arranged above the rear part of the guide rail; Pulley, upper trolley traveling device 6 rear end of the crossbeam middle front end and rear end respectively r...

Embodiment 2

[0026] After excavating into the construction section, when the depth is 2 meters to 2.5 meters from the end of the high molecular weight polyethylene conforming formwork 5, observe that there is no loosening of soil and rocks in the construction section, and the high molecular weight of the equipment is driven by the trolley traveling device 1 or the upper trolley traveling device 6. The polyethylene conforming formwork 5 walks into the newly excavated construction section, so that the end of the high molecular weight polyethylene conforming formwork 5 is docked with the new construction section.

Embodiment 3

[0028] After the high-molecular-weight polyethylene composite template 5 is docked with the new construction section, a concrete lining construction is performed on the tunnel wall of the newly excavated construction section through the prefabricated working window on the high-molecular-weight polyethylene composite template 5 .

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Abstract

Provided are a construction process of a primary lining trolley in high-risk rock tunnel and a lining trolley device. According to the primary lining trolley in the high-risk rock tunnel, an upper rack at the upper position is moved by an upper trolley walking device to make the end portion of a high-molecular-weight polyethylene composite template be in butt join with the construction fracture surface of the high-risk rock tunnel, and constructors conduct digging under the high-molecular-weight polyethylene composite template; after digging is conducted on the construction fracture surface, it is required to observe whether or not soil and stone on the construction fracture surface are loosened; after the high-molecular-weight polyethylene composite template is in butt joint with a new construction fracture surface, the trolley walking device enters the newly dug construction fracture surface, concrete lining construction is conducted on the newly dug tunnel wall once through a work window; a mobile rack is adopted for the upper portion of the primary lining trolley in the high-risk rock tunnel, and the mobile trolley is used for entering the position under the fracture surface to conduct primary lining reinforcement construction on the tunnel wall; it is ensured that construction can be conducted safely on the fracture surface of the areas with loosened soil texture and macadam, and the schedule and quality of the construction can be guaranteed.

Description

technical field [0001] The invention relates to a construction technology of a platform device for the first lining of a high-risk rock tunnel, in particular to a construction technology of a trolley-lined trolley device for the first lining of a high-risk rock tunnel. Background technique [0002] At present, the roads and railways in our country's infrastructure pass through mountains and ridges. When tunnel excavation construction encounters loess soil, loose and easy-to-collapse soil, areas that are easy to soften when exposed to water, and gravel areas, there is a danger of landslides at any time, that is, high Risk high risk rock tunnel. The excavation distance of high-risk and high-risk rock tunnels is short. When digging two meters, reinforcement, support, and first lining are required immediately. Due to the danger of landslides and rockfall, construction personnel cannot carry out construction under the open section to avoid slow progress of the project 1. Constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21D9/00
CPCE21D9/00E21D11/102
Inventor 黄高飞
Owner LUOYANG GAOFEI BRIDGE MACHINERY CO LTD