Anchoring agent pushing method of large aperture pre-stressed anchorage engineering and tool for pushing anchoring agents
A technology of anchoring agent and tools, which is applied in the direction of foundation structure engineering, earthwork drilling, bolt installation, etc., to improve efficiency and accuracy, ensure construction quality, and protect the effect of anchoring agent
Pending Publication Date: 2018-08-28
POWERCHINA BEIJING ENG
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0003] The problem to be solved by the present invention is to provide an anchoring agent pushing method and a tool for pushing the anchoring agent in a large-aperture prestressed anchorage project, so as to ensure that the anchoring agent can be protected during the pushing process and the efficiency of pushing the anchoring agent can be improved without Due to the rupture of the anchoring agent during the pushing process, it quickly reacts and solidifies, and cannot be smoothly and accurately sent to the anchoring end
Method used
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Embodiment Construction
[0012] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0013] Such as figure 1 As shown, the tool for pushing the anchoring agent of the present invention includes a steel sleeve 1 for placing the anchoring agent. One end of the steel sleeve 1 is not sealed, and the other end is sealed and a through hole is arranged at the center of the circle. Outside the sealed end of the steel sleeve 1 Weld a connecting short pipe 6 connected with the through hole, connect the short connecting pipe 6 with the PVC sleeve 4 of the push steel sleeve 1, the inner diameter of the PVC sleeve 4 and the inner diameter of the connecting short pipe 6 are the same as the through hole, forming a through hole. A through-pipe with a diameter of 100 mm, the pushing steel bar 2 for pushing the anchoring agent is inserted into the steel sleeve 1 through one end, and a pushing gasket 3 capable of pushing out the anchoring agent is...
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Abstract
The invention discloses an anchoring agent pushing method of large aperture pre-stressed anchorage engineering and a tool for pushing anchoring agents. One end of a steel sleeve containing the anchoring agents is not sealed, the other end of the steel sleeve is sealed, and a through hole is formed in the center of the circle of the steel sleeve. A short connecting pipe on the outer side of the sealed end of the steel sleeve is connected with a PVC sleeve which pushes the steel sleeve, a pushing steel bar stretches into the steel sleeve in a manner that one end of the pushing steel bar is inserted into the PVC sleeve, a pushing gasket is fixed at the top end of the pushing steel bar, and the pushing steel bar and the pushing gasket form a piston rod. The anchoring agents are put in the steel sleeve, the steel sleeve is inserted into a drilled anchor rod hole, the PVC sleeve is pushed, the tool is sent into the hole, when the top of the steel sleeve is pushed to the bottom of the hole, the PVC sleeve is held by hand and pulled out, meanwhile the pushing steel bar is pushed inwards, and after the anchoring agents are squeezed out of an anchoring agent containing area through the pushing gasket, the whole pushing equipment is pulled out. The anchoring agent pushing method and the tool can not only play a role in protecting the anchoring agents in the anchoring agent pushing process, but also improve the anchoring agent pushing efficiency and accuracy, and guarantee the construction quality of the pre-stressed anchorage engineering.
Description
technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a method for pushing an anchoring agent and a tool for pushing the anchoring agent in a large-aperture prestressed anchoring project. Background technique [0002] At present, the support of water conservancy and hydropower projects in my country usually adopts bolt support, and the bolts used for support mainly include mortar bolts, metal bolts, prestressed bolts and so on. Among them, prestressed anchor rods are mostly used in stress concentration parts. Prestressed anchor rods have the advantages of bearing blocks, large anchoring force, safety and reliability, relatively simple construction operations, and wide application range. They also have better control of surrounding rock displacement and seismic performance. The prestressed anchor rod is mainly composed of an anchor head, a rod body and a backing plate. The anchoring force generate...
Claims
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IPC IPC(8): E02D5/76E21D21/00
CPCE21D21/008E02D5/76E02D2250/003
Inventor 贾畅东程静文陈冬瑞程新均
Owner POWERCHINA BEIJING ENG