Anchor net device for high and steep slope reinforcement and protection and construction method thereof

A technology for high and steep slopes and construction methods, which is applied in the field of anchor net devices and reinforcement and protection of high and steep slopes, can solve the problems of difficulty in forming effective connections of prefabricated beams, poor effect of pouring and compacting on site, and difficulty in transporting concrete on site. Avoid the difficulty of concrete transportation, convenient transportation, good economic and social benefits

Active Publication Date: 2020-08-07
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

Method used

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  • Anchor net device for high and steep slope reinforcement and protection and construction method thereof
  • Anchor net device for high and steep slope reinforcement and protection and construction method thereof
  • Anchor net device for high and steep slope reinforcement and protection and construction method thereof

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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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Abstract

The invention relates to the technical field of geotechnical engineering, in particular to an anchor net device for high and steep slope reinforcement and protection and a construction method thereof.The anchor net device comprises a prestressed anchorage device and a flexible net pad, an expanding cap is arranged on the flexible net pad, the prestressed anchorage device and the expanding cap areconnected, the expanding cap comprises an upper expanding cap body and a lower expanding cap body, the upper expanding cap body and the lower expanding cap body clamp the flexible net pad from the two sides of the flexible net pad, and both the upper expanding cap body and the lower expanding cap body are in surface contact with the flexible net pad. According to the anchor net device for high and steep slope reinforcement and protection, the anchorage force of the prestressed anchorage device acts on the slope surface of a high and steep slope through the flexible net pad and the expanding cap to resist the broken rock and soil gravity and rock and soil pressure, thus the purpose of protecting the slope is achieved, the problems that concrete transport is difficult, and on-site pouring and puddling effects are poor are avoided, compared with a concrete beam, the expanding cap is small in structure, capable of being prefabricated in a factory, reliable in quality and convenient to transport, and thus the construction cost is lowered.

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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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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