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Method of root key anchor cable and grouting to anchor hole
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A technology of root key and anchor cable, applied in construction, sheet pile wall, foundation structure engineering, etc., can solve the problems of difficult construction, high consumption of concrete, uneconomical and other problems, and achieve the effect of increasing resistance and improving anchoring effect.
Active Publication Date: 2018-01-02
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology
In this way, the method of simply increasing the diameter and length of the anchorage section needs to consume a large amount of concrete, which is difficult to construct and not economical.
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Embodiment 1
[0096] See attached Figure 1-10 , the root key type anchor cable provided by Embodiment 1 of the present invention includes an anchor platform 20, an anchor 22, three pressure-bearing mechanisms 1a, 1b, 1c, and three sets of tendons 15a, 15b, 15c, and the anchor 22 is fixedly connected to the anchor The platform 20 constitutes the outer anchoring section. After the three pressure-bearing mechanisms 1a, 1b, and 1c are respectively connected in series with the three sets of ribs 15a, 15b, and 15c, the fixed ends of the ribs 15a, 15b, and 15c are respectively connected in parallel to the outer anchoring section. The hoisting ends of the ribs 15a, 15b, 15c are used for hoisting the pressure-bearing mechanisms 1a, 1b, 1c, and each pressure-bearing mechanism 1a, 1b, 1c is radially outwardly provided with multiple The root keys 3a, 3b, 3c in the soil, the centers of the three pressure-bearing mechanisms 1a, 1b, 1c are all provided with through holes 14a, 14b (not marked in the figur...
Embodiment 2
[0127] Referring to accompanying drawings 2 to 10 and 19, the method of grouting the anchor hole provided by the second embodiment of the present invention is realized based on the root-key type anchor cable provided by the present invention, and the number of pressure-bearing mechanisms is three for illustration. A plurality of pressure-bearing mechanisms of the type anchor cable include a first pressure-bearing mechanism 1a, a second pressure-bearing mechanism 1b, and a third pressure-bearing mechanism 1c from bottom to top, and the method for grouting the root-key anchor cable to the anchor hole includes the following steps:
[0128] Assemble the first pressure-bearing mechanism 1a, the second pressure-bearing mechanism 1b, and the third pressure-bearing mechanism 1c of the root-key anchor cable in sequence, so that the grout outlet 17a of the grouting pipe is in the position of the first pressure-bearing mechanism 1a of the root-key anchor cable. bottom;
[0129] Inject th...
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Abstract
The invention discloses a root key type anchor cable and a method for grouting in anchor holes. The anchor cable comprises an anchor table, an anchorage device, a plurality of pressure bearing mechanisms and a plurality of rib bodies, wherein the anchorage device is fixedly connected with the anchor table to form an outer anchorage section; after the pressure bearing mechanisms are serially connected with the rib bodies, fixed ends of the rib bodies are then connected to the outer anchorage section in parallel respectively; hoisting ends of the rib bodies are used for hoisting the pressure bearing mechanisms; a plurality of root keys capable of extending in rock and earth masses of the anchor holes are arranged on the pressure bearing mechanisms outwards in the radial direction; each through hole is formed in the center of the corresponding pressure bearing mechanism; circle centers of the various through holes are positioned on the same straight line; diameters of the various through holes are the same; a penetrating hole is reserved in the outer anchorage section; the circle center of the penetrating hole and the circle centers of the various through holes are positioned on the same straight line; the diameter of the penetrating hole is the same with the diameters of the various through holes; a grouting pipe penetrates through the penetrating hole and the various through holes; and the grouting pipe, the pressure bearing mechanisms and the outer anchorage section form a sliding pair. The method for grouting in the anchor holes is implemented on the basis of the anchor cable. By the anchor cable and the method, the anchorage effect of the anchor cable can be improved effectively.
Description
technical field [0001] The invention relates to the technical field of devices for anchoring structural members or retaining walls, in particular to a root key anchor cable and a method of grouting an anchor hole realized by using the root key anchor cable. Background technique [0002] Anchor cable: When the main cable is anchored in the side hole in the suspension bridge, the main cable should be divided into many strands of steel bundles and anchored in the anchor spindle respectively. These steel bundles are called anchor cables. The anchor cable is fixed on the slope surface through the outer end, and the other end is anchored in the stable rock mass within the sliding surface, passing through the prestressed steel strand on the sliding surface of the slope, directly generating anti-sliding resistance on the sliding surface, increasing the anti-sliding Frictional resistance keeps the structural surface in a compact state to improve the integrity of the rock mass of the ...
Claims
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Application Information
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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/74E02D15/04
CPCE02D5/74E02D15/04
Inventor 孙冠华郑宏杨永涛郭宏伟
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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