Grouting reinforcement method suitable for weak filler karst cave

A technology of grouting reinforcement and filling, which is applied in the field of stratum grouting reinforcement to achieve the effects of reducing workload, expanding the scope of grouting reinforcement, and increasing the diffusion radius of grout

Active Publication Date: 2020-08-18
CHINA RAILWAY WUJU GROUP ELECTRIC WORKS ENG CORP +1
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  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to provide a grouting reinforcement method suitable for karst caves with weak fillings, so as to solve the problem of multiple lifting and adjustment of the grouting equipment position when reinforcing the bottom layer with different depths

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  • Grouting reinforcement method suitable for weak filler karst cave
  • Grouting reinforcement method suitable for weak filler karst cave
  • Grouting reinforcement method suitable for weak filler karst cave

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Embodiment Construction

[0039] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered by the claims.

[0040] see Figure 1 to Figure 10 , a grouting reinforcement method suitable for karst caves with weak fillings, this embodiment is applied to karst grouting reinforcement.

[0041] A grouting reinforcement method suitable for karst caves with weak fillings, see Figure 1 to Figure 2 , including a grouting pipe 1, a grouting bucket 2 and a grouting valve 3; along the height direction of the grouting bucket 2, a plurality of partitions 2.1 are arranged inside the grouting bucket 2, and two adjacent partitions 2.1 and the grouting bucket 2 The side wall forms a grout containing cavity; one end of the grouting pipe 1 passes through the partition plate 2.1 of the grouting barrel 2 to deliver grout to each grout containing cavity in the grouting barrel 2; the ...

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Abstract

The invention provides a grouting reinforcement method suitable for a weak filler karst cave. The grouting reinforcement device comprises a grouting pipe, a grouting barrel and a grouting valve, a plurality of partition plates are arranged in the grouting barrel in the height direction of the grouting barrel, a grout containing cavity is formed by every two adjacent partition plates and the side wall of the grouting barrel, a plurality of telescopic grouting valves are connected to the side wall of the grouting barrel in a sliding mode, and each grouting valve is located between the two layersof partition plates; and the end, provided with a grout conveying hole, of the grouting pipe penetrates through the partition plate of the grouting barrel to be in sliding connection with the grouting barrel in the height direction, and piston rings are arranged on the two sides of the grout conveying hole in the height direction of the grouting pipe. The multiple layers of grout containing cavities are formed in the grouting barrel, the grouting valves are arranged on the side walls of all the grout containing cavities, the grouting reinforcement device can be suitable for grouting reinforcement of stratums of different depths only by lifting the grouting pipes, the workload of workers for lifting the whole grouting device can be reduced, and the grouting working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of stratum grouting reinforcement, in particular to a grouting reinforcement method suitable for karst caves with weak fillings. Background technique [0002] The karst area is a geological disaster area, and there are a large number of dissolved soil caves underground. For pile foundations, foundation pits, underground tunnel excavation and other projects, the dissolved soil caves need to be treated first to ensure the safety of construction and use, and avoid construction and use. During the process, safety accidents such as hole collapse, water leakage, and large-scale collapse in the surrounding area were caused by dissolved soil holes. According to geological drilling data, different treatment methods are adopted for the specific conditions of various types of dissolved soil caves. On the one hand, it can ensure the expected treatment effect, on the other hand, it can effectively control the cost and re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12
CPCE02D3/12
Inventor 檀俊坤任飞王超许迪方正蒋庆召王广王乐乎谭新根张永刚向南
Owner CHINA RAILWAY WUJU GROUP ELECTRIC WORKS ENG CORP
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