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A kind of bolt grouting agent and using method thereof

A bolt and grouting technology, applied in bolt installation, earthwork drilling, mining equipment, etc., can solve the problems of labor and time-consuming waste, slow construction speed, etc., to strengthen the surrounding rock, prevent the deformation of the surrounding rock, and improve the anchorage effect of effect

Active Publication Date: 2019-04-05
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problems in the prior art solved by the present invention are: after the bolt support is completed, the surrounding rock is sealed, and then the surrounding rock is grouted, which is labor-intensive, time-consuming and wasteful, and the construction speed is slow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The proportion of the anchoring agent is as follows: component A of the anchoring agent: 94, component B of the anchoring agent: 6, and the component A of the anchoring agent is mixed with unsaturated polyester resin and high-strength quartz sand according to the ratio of 80:20.

[0025] The ratio of the anchor grouting agent is: A component: 40, B component: 20, C component: 40, the A component is a prepolymer prepared by the polymerization reaction of polyvalent isocyanate and polyhydroxy compound, and B component Divided into saturated polyester resin, C component is polyol, blowing agent and catalyst. The A component is a prepolymer of the polymerization reaction of polymethylene polyphenyl polyisocyanate and polyether polyol, and the preparation ratio is 0.8:1.0. In the C component, polyether polyol, trichlorofluoromethane The ratio of triethanolamine and triethanolamine is 95:1.5:1.

[0026] The anchoring agent and the anchor grouting agent are respectively fille...

Embodiment 2

[0029] The proportion of the anchoring agent is adopted, the anchoring agent A component: 94, the anchoring agent B component: 6, and the anchoring agent A component is unsaturated polyester resin and high-strength quartz sand mixed according to the ratio of 80:20.

[0030] The proportion of the anchor grouting agent is adopted, A component: 40, B component: 20, C component: 40, the A component is a prepolymer prepared by the polymerization reaction of polyvalent isocyanate and polyhydroxy compound, and B component Divided into saturated polyester resin, C component is polyol, blowing agent and catalyst. The A component is a prepolymer of the polymerization reaction of polymethylene polyphenyl polyisocyanate and polyether polyol, and the preparation ratio is 1.2:1.0. In the C component, polyester polyol, trichlorotrifluoroethylene The ratio of alkane and triethylamine is 99:1.5:1.

[0031] The anchoring agent and the anchor grouting agent are respectively filled in plastic ba...

Embodiment 3

[0034] The proportion of the anchoring agent is adopted, the anchoring agent A component: 94, the anchoring agent B component: 6, and the anchoring agent A component is unsaturated polyester resin and high-strength quartz sand mixed according to the ratio of 80:20.

[0035] The proportion of anchor grouting agent is adopted, A component: 45, B component: 15, C component: 40, the A component is a prepolymer prepared by the polymerization reaction of polyvalent isocyanate and polyhydroxy compound, and B component Divided into saturated polyester resin, C component is polyol, blowing agent and catalyst. The A component is a prepolymer of polymethylene polyphenyl polyisocyanate and polyether polyol polymerization reaction, and the preparation ratio is 0.8:1.0. In the grouting agent C component, polyether polyol, trichloro The ratio of monofluoromethane and triethanolamine is 95:1.5:1.

[0036] The anchoring agent and the anchor grouting agent are respectively filled in plastic ba...

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Abstract

The invention belongs to the field of anchor rod support, and relates to an anchor rod grouting agent and a using method of the anchor rod grouting agent. The anchor rod grouting agent is composed of 40-45 parts of components A, 15-20 parts of components B and 40-45 parts of components C. The using method of the anchor rod grouting agent comprises the steps of installation of an anchoring agent and a grouting agent and installation of an anchor rod. The anchor rod grouting agent has the beneficial effects that on one hand, the whole-length anchoring of the anchor rod can be achieved, the anchor rod and surrounding rock are firmly and fixedly combined together, and the anchoring effect is improved; and on the other hand, the surrounding rock can be grouted, the effect of reinforcing the surrounding rock is achieved, and the surrounding rock is prevented from being deformed.

Description

technical field [0001] The invention belongs to the field of bolt support, and relates to a bolt grouting agent and a using method thereof. Background technique [0002] Bolt support is a very effective form of active support for surrounding rock support in shaft and tunnel engineering. It has many advantages such as simple support process, fast support speed, low labor intensity of workers, and low support cost. to be widely applied. [0003] However, the existing bolt anchoring agent only plays the role of anchoring the bolt into the hole of the bolt, and cannot play the role of grouting the surrounding rock. Moreover, due to the high viscosity of the anchoring agent, the anchor rod will have great resistance during the process of stirring the anchoring agent, and the anchoring agent at the bottom of the hole will not be stirred and the anchoring agent in the previous section will start to solidify, and the anchor rod will not be injected into the bottom of the hole, resu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/48C08G18/42C08G18/10C08J9/14E21D20/02C08G101/00C08L75/08
CPCC08G18/10C08G18/4018C08G18/42C08G18/48C08G18/7664C08G2101/00C08J9/147C08J2203/144C08J2375/08E21D20/025C08G18/40
Inventor 焦华喆陈新明罗平平王新宇韩振宇孙冠东严少洋刘子璐
Owner HENAN POLYTECHNIC UNIV
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