An anchor net device and construction method for high and steep slope reinforcement and protection

A technology for high and steep slopes and construction methods, applied in the field of geotechnical engineering, can solve problems such as difficulty in forming effective connections of prefabricated beams, difficulty in transporting concrete on site, and poor effect of pouring and compacting on site, so as to avoid transportation difficulties and reduce construction costs , the effect of convenient transportation

Active Publication Date: 2021-10-08
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome existing in the prior art, when traditional anchor concrete frame beam is applied to high and steep slope protection, on-site concrete transportation is difficult; Prefabricated beam is difficult to form the ground beam of effective connection; Destruction of the ecological environment; the problem of poor concrete tamping effect when concrete frame beams are poured. An anchor net device and its construction method for reinforcement and protection of high and steep slopes are provided. Acting on the slope of high and steep slopes to achieve the purpose of protecting high and steep slopes, avoiding the difficulty of concrete transportation and poor tamping effect of on-site pouring, and expanding the cap to achieve factory prefabrication, not only reliable in quality, but also compared to concrete beams Lian said that it greatly facilitates transportation and reduces construction costs

Method used

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  • An anchor net device and construction method for high and steep slope reinforcement and protection
  • An anchor net device and construction method for high and steep slope reinforcement and protection
  • An anchor net device and construction method for high and steep slope reinforcement and protection

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Effect test

Embodiment 1

[0060] Such as Figure 1-5 As shown, a high and steep anchor net device for high and steep slope reinforcement and protection described in this embodiment includes a prestressed anchor device 1, a flexible mesh pad 2, and an enlarged cap 3. The prestressed anchor device 1 is along the slope 6 The slope 61 of the slope is anchored into the slope body of the slope 6 longitudinally and transversely; the flexible mesh pad 2 is close to the slope 61 of the slope 6, and is arranged between the lower expansion cap 31 and the upper expansion cap 32, and the upper expansion cap 32 Clamp the flexible mesh pad 2 from both sides of the flexible mesh pad 2 with the lower expansion cap 31, and the upper expansion cap 32 and the lower expansion cap 31 are all in contact with the flexible mesh pad 2; 3 is arranged at the tail of the anchor rod 1, and the top surface of the upper enlarged cap 32 of the enlarged cap 3 is provided with an anchor 4 and a bucket-shaped head 5 in sequence.

[0061...

Embodiment 2

[0074] Such as Figure 1-5 As shown, a construction method for forming the anchor net device for the reinforcement and protection of high and steep slopes described in this embodiment includes the following steps:

[0075] S1: Prefabricate the lower expansion cap 31 and the upper expansion cap 32 of the expansion cap 3, and then transport them to the working surface of the side slope 6;

[0076] S2: Determine the hole position of the prestressed anchoring device 1, drill the hole with the drilling rig, install the prestressed anchoring device 1 and inject grout;

[0077] S3: The body of the prestressed anchoring device 1 passes through the lower expansion cap 31 to reserve a round hole channel, and the lower expansion cap 31 is embedded in the side slope 6 and laid on the slope;

[0078] S4: Laying the flexible mat 2 along the slope 61 of the side slope 6, and pre-tensioning the flexible mat 2 longitudinally and transversely along the slope;

[0079] S5: The body of the pres...

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PUM

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Abstract

The invention relates to the technical field of geotechnical engineering, in particular to an anchoring net device and a construction method thereof for the reinforcement and protection of high and steep slopes, comprising a prestressed anchoring device and a flexible mesh pad, the flexible mesh pad is provided with an enlarged cap, and the prestressed anchoring device It is connected with the enlarged cap, and the enlarged cap includes an upper enlarged cap and a lower enlarged cap, and the upper enlarged cap and the lower enlarged cap clamp the flexible mesh pad from both sides of the flexible mesh pad, and both the upper enlarged cap and the lower enlarged cap are connected to the surface of the flexible mesh pad. touch. An anchor net device used for the reinforcement and protection of high and steep slopes of the present application uses a flexible mesh pad and an enlarged cap to apply the anchoring force of the prestressed anchoring device to the slope surface of the high and steep slope to resist the gravity of the broken rock and soil and the Earth pressure, so as to achieve the purpose of protecting the slope, and avoid the difficulty of concrete transportation and poor tamping effect of on-site pouring. Compared with concrete beams, the expansion cap has a small structure and can be prefabricated in factories. It is not only reliable in quality, but also It is convenient for transportation and reduces the construction cost.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to an anchor net device used for reinforcement and protection of high and steep slopes and a construction method thereof. Background technique [0002] The mountains and valleys along the Sichuan-Tibet Railway are high and the valleys are deep, characterized by high intensity, high altitude, and large height difference. High and steep natural slopes are widely distributed along the line. The height reaches the kilometer level and the slope reaches 60°. A large number of unstable slopes or dangerous rock masses are distributed on high and steep natural slopes, which are very easy to lose stability and slide under the action of earthquakes, rainfall, etc., forming high-level landslides or dangerous rockfalls, affecting the normal use of railway buildings and structures, and even It may directly damage the bridge and tunnel engineering (tunnel opening or bridge abutmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20E02D5/74
CPCE02D5/74E02D17/202
Inventor 陈伟志孙晓李安洪刘勇龚建辉
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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