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Anchor cable structure and anchor cable frame beam construction method

A technology of frame beams and anchor cables, applied in foundation structure engineering, building construction, sheet pile walls, etc., can solve problems such as the problem of hole formation in broken ground

Inactive Publication Date: 2020-11-10
CHINA CONSTR SECOND ENG BUREAU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, the dry hole formation mainly adopts the following pipe construction technology, but it is still a technical problem to form holes in broken strata.

Method used

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  • Anchor cable structure and anchor cable frame beam construction method
  • Anchor cable structure and anchor cable frame beam construction method
  • Anchor cable structure and anchor cable frame beam construction method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0043] Embodiment 1: An anchor cable structure, including a guide cap 1, an anchor cable component, a tightening ring 2, a grouting pipe 5, an expansion ring 3, an anchor 10, a concrete anchor bracket 9, and an anchor head. The anchor cable component is divided into The free section and the anchor section, the top of the free section of the anchor cable is set on the reinforced concrete frame through the anchorage 10, the bottom end of the anchor section is fixedly connected with the guide cap 1, the anchor cable component includes a steel strand, and the free section of the steel strand is Oil-coated sheathed plastic steel strand 6, the anchoring section of the steel strand bundle is a bare steel strand, the steel strand bundle is bound into an anchor cable through uniformly arranged tight hoops 2, the grouting pipe 5 is arranged in the center of the anchor cable, and the anchorage of the anchor cable component The section is uniformly provided with an expansion ring 3 and the...

Embodiment 2

[0072] Embodiment 2: This embodiment is an anchor cable frame beam construction method in a highway project in Yunnan, using the anchor cable structure of Embodiment 1, and the specific steps are as follows:

[0073] (1) The slope surface shall be cleared according to the design slope rate, and the anchor hole spacing, inclination and elevation of the anchor cable frame beam shall be designed according to the slope height and geological conditions, and the vertical and transverse rib column positions shall be determined; Among them, the specific design method of the anchor hole spacing, inclination and elevation of the anchor cable frame beam: the inclination and elevation of the anchor cable frame beam are determined according to the inclination and height of the slope surface; due to the strong anchoring force of the prestressed anchor cable, the slope The extrusion anchorage zone is formed in the slope. From the stability analysis of the slope, the sliding surface or potenti...

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Abstract

The invention relates to an anchor cable structure and an anchor cable frame beam construction method. The anchor cable structure comprises a guide cap, an anchor cable component, tightening rings, agrouting pipe, expansion rings, an anchorage device, a concrete anchor inclined support and an anchor head, the anchor cable component is divided into a free section and an anchoring section, the topend of the anchor cable free section is arranged on a reinforced concrete frame through the anchorage device, the bottom end of the anchoring section is fixedly connected with the guide cap, and the anchor cable component comprises a steel strand and a steel strand casing pipe. A free section of the steel strand is an oiled coating steel strand, an anchoring section of the steel strand is an exposed steel strand, the steel strand is bound into a steel strand bundle through the evenly-arranged tightening rings, the grouting pipe is arranged in the center of the steel strand bundle, the expansion rings are evenly arranged on the anchoring section of the anchor cable component, the concrete anchor inclined support is arranged at the outer side of the reinforced concrete frame, and the anchorhead is a concrete closed anchor head. A PVC pipe is arranged at the outer side of the free section of the anchor cable component in a sleeving manner, spiral ribs are arranged in frame beams, and gaps are formed between the anchor cable component and the side walls of anchor holes. The slope stress state and the stable state can be changed, and the stability is improved.

Description

technical field [0001] The invention relates to an anchor cable structure and an anchor cable frame beam construction method, belonging to the technical field of slope structure support and protection. Background technique [0002] The prestressed anchor cable frame beam is a composite retaining structure that emerged with the development of anchor cable technology. Compared with the gravity retaining wall, the prestressed anchor cable frame beam has the advantages of light structure and beautiful form. Existing retaining structures only play a role after the slope body has been displaced, which is passive to a certain extent. The anchoring force provided by the prestressed anchor cable frame beam through the rock mass deep in the formation can actively strengthen the slope. Prestressed anchor cable frame beams are mainly composed of anchor cables (rods), frame beams and related landscape measures. At present, frame beams are made of cast-in-place or prefabricated reinfor...

Claims

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Application Information

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IPC IPC(8): E02D5/76E04G21/12
CPCE02D5/76E04G21/121
Inventor 何柯胡亚军翁邦正陈胜德曹洋锋夏征勇代继飞刘爽李程杨曦王海波
Owner CHINA CONSTR SECOND ENG BUREAU LTD
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