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A grouting reinforcement method suitable for karst caves with weak fillings

A technology of grouting reinforcement and filling, which is applied in the field of formation grouting reinforcement to reduce the drilling workload, increase the grout diffusion radius, and reduce the drilling density

Active Publication Date: 2021-11-12
CHINA RAILWAY WUJU GROUP ELECTRIC WORKS ENG CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • A grouting reinforcement method suitable for karst caves with weak fillings
  • A grouting reinforcement method suitable for karst caves with weak fillings
  • A grouting reinforcement method suitable for karst caves with weak fillings

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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 karst caves of weak fillings. It includes a grouting pipe, a grouting barrel and a grouting valve; along the height direction of the grouting barrel, a plurality of partitions are arranged inside the grouting barrel, and two adjacent partitions and the side wall of the grouting barrel form a grout containing chamber , a plurality of telescopic grouting valves are slidably connected to the side wall of the grouting barrel, and each grouting valve is located between two partitions; one end of the grouting pipe provided with a grouting hole passes through the grouting barrel The clapboard is slidably connected with the grouting barrel along the height direction, and piston rings are arranged on both sides of the grouting hole along the height direction of the grouting pipe. In the present invention, multiple layers of grout containing chambers are arranged inside the grouting bucket, and a grouting valve is arranged on the side wall of each grouting chamber, so that the grouting pipe can be applied to the strata of different depths for grouting reinforcement, which can reduce the need for workers to lift Reduce the workload of the overall grouting equipment and improve the efficiency of grouting work.

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 Patents(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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