A Precisely Targeted Anchor Grouting Control Method Applicable to Deep Soft Rock Roadway

Abstract

The invention discloses a precise targeting anchor grouting control method suitable for deep soft rock roadways. Under the condition of high ground stress, the surrounding rock of the roadway presents the characteristics of significant directional tension, shear fracture and continuous deformation. Through theoretical and experimental research, the spatial distribution characteristics of the tensile-shear cracks of the roadway surrounding rock can be obtained and mastered. , by adopting targeted and directional anchor-mesh-cable support and grouting reinforcement technology, it is possible to efficiently realize "positioning control of directional fracture" in roadway support, thereby achieving precise targeted control.

Description

technical field

[0001] The invention relates to the technical field of mines, in particular to an accurate targeting anchor injection control method suitable for deep soft rock roadways. Background technique

[0002] The phenomenon of high ground stress, high ground temperature, and high osmotic pressure in the deep rock mass poses a huge threat to the long-term stability of the surrounding rock of the deep roadway, causing severe mine disasters such as large deformation of high ground stress soft rock, rock burst, rock burst, and water inrush. , which seriously threatens the safe production of deep mines; under the condition of deep roadway formation, many large-section coal (rock) seam roadways that have been supported by anchor-mesh-cable joint support still appear large Deformation, damage and even serious instability have caused great difficulties and potential safety hazards for the normal use of the roadway. The causes of these problems are all due to the fact that t...

Examples

Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower" and "horizontal" are based on the orientation or positional relationship shown in the drawings, and are only for It is convenient to describe the utility and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be con...

technical field

[0001] The invention relates to the technical field of mines, in particular to an accurate targeting anchor injection control method suitable for deep soft rock roadways. Background technique

[0002] The phenomenon of high ground stress, high ground temperature, and high osmotic pressure in the deep rock mass poses a huge threat to the long-term stability of the surrounding rock of the deep roadway, causing severe mine disasters such as large deformation of high ground stress soft rock, rock burst, rock burst, and water inrush. , which seriously threatens the safe production of deep mines; under the condition of deep roadway formation, many large-section coal (rock) seam roadways that have been supported by anchor-mesh-cable joint support still appear large Deformation, damage and even serious instability have caused great difficulties and potential safety hazards for the normal use of the roadway. The causes of these problems are all due to the fact that t...

Examples

Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower" and "horizontal" are based on the orientation or positional relationship shown in the drawings, and are only for It is convenient to describe the utility and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be con...

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