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Novel steel frame non-coupling backfill supporting method for complex broken surrounding rock roadway

A technology for crushing surrounding rocks and roadways, which is applied in the field of new uncoupled steel frame backfill support for complex broken surrounding rock roadways, which can solve the problems of increasing the secondary maintenance of roadways in the service cycle of the roadway, so as to reduce cleaning work, reduce workload, The effect of increasing structural stability

Active Publication Date: 2022-02-11
安徽太平矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of uncoupled steel frame backfill support method for roadways with complex broken surrounding rocks, so as to solve the problem of how to increase the service cycle of the roadway and reduce the secondary maintenance of the roadway and reduce the construction cost proposed in the above background technology. Reduce construction risk issues during secondary maintenance

Method used

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  • Novel steel frame non-coupling backfill supporting method for complex broken surrounding rock roadway
  • Novel steel frame non-coupling backfill supporting method for complex broken surrounding rock roadway

Examples

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Effect test

Embodiment 1

[0042] see Figure 1-2 , the present invention provides a technical solution:

[0043]A new uncoupled backfill support method for steel frames in roadways with complex broken surrounding rocks, including a trapezoidal steel support module for supporting the roadway, the support method also includes an uncoupled backfill process module, and an uncoupled backfill process module It is used to increase the initial service cycle of the roadway. The uncoupled backfill process module includes the roadway overexcavation process module before the trapezoidal steel support 2 supports are erected, and the log backfill process module after the trapezoidal steel support 2 supports are erected. The excavation process module also includes the reinforcement riser process module, and the log backfill process module also includes the pre-dimension window process module;

[0044] The roadway over-excavation process module is used to actively release the pressure. It can reserve a pressure relie...

Embodiment 2

[0052] see Figure 1-2 , the present invention provides a technical solution:

[0053] A new uncoupled backfill support method for steel frames in roadways with complex broken surrounding rocks, including a trapezoidal steel support module for supporting the roadway, the support method also includes an uncoupled backfill process module, and an uncoupled backfill process module Used to increase the initial service cycle of the roadway, the uncoupled backfilling process module includes the roadway overexcavation process module before the trapezoidal steel support 2 supports are erected, the log backfill process module after the trapezoidal steel support 2 supports are erected, and the log The backfill process module also includes the pre-dimension window process module;

[0054] The round log backfilling process module is used to increase the force-bearing area of ​​the trapezoidal steel bracket 2 and prevent the scum from falling in the roadway. Supports such as logs and bamb...

Embodiment 3

[0061] see Figure 1-2 , the present invention provides a technical solution:

[0062] A new uncoupled backfill support method for steel frames in roadways with complex broken surrounding rocks, including a trapezoidal steel support module for supporting the roadway, the support method also includes an uncoupled backfill process module, and an uncoupled backfill process module It is used to increase the initial service cycle of the roadway. The uncoupled backfill process module includes the roadway overexcavation process module before the trapezoidal steel support 2 supports are erected, and the log backfill process module after the trapezoidal steel support 2 supports are erected. The excavation process module also includes the reinforcement riser process module, and the log backfill process module also includes the pre-dimension window process module;

[0063] The roadway over-excavation process module is used to actively release the pressure. It can reserve a pressure reli...

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Abstract

A novel steel frame non-coupling backfill supporting method for a complex broken surrounding rock roadway is provided, in which a trapezoid steel support erecting module used for supporting the roadway and a non-coupling backfill process module used for prolonging the initial service period of the roadway are used. The non-coupling backfill process module comprises a roadway over-excavation process module before the trapezoidal steel support is erected and a log backfilling process module after the trapezoidal steel support is erected, the roadway over-excavation process module further comprises a reinforced vertical plate process module, and the log backfilling process module further comprises a pre-maintenance window process module; the roadway over-excavation process module is used for actively releasing pressure, reserving a pressure relief space in advance before a trapezoid steel support is erected, conducting drilling blasting on a roadway, conducting trimming through tools such as an air pick after blasting, enabling the two sides of the roadway to become continuous upper faces, and cleaning dropped scum after overexcavation is finished.

Description

technical field [0001] The invention relates to the technical field of roadway backfill support, in particular to a novel steel frame uncoupled backfill support method for complex broken surrounding rock roadway. Background technique [0002] At present, the support methods for soft rock roadways in underground metal mines in China are mostly steel support support. In the process of steel support support, it is generally divided into trapezoidal steel support and "U" steel support. "U" steel The cost of the bracket is slightly higher than that of the ordinary trapezoidal steel bracket, but it can fit the arched roof of the roadway higher, and the pressure can be more evenly distributed on the steel bracket. In the mining process, the steel frame and backfill logs can be recycled, and the mining cost can be significantly reduced in the long run. Therefore, trapezoidal steel support is widely used in the actual use of underground metal mines in China. [0003] During use, sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/02E21D11/00E21D11/10E21D11/15E21D20/00E21D20/02
CPCE21D11/10E21D11/15E21D20/00E21D20/02E21D11/02E21D11/003
Inventor 毛思帅褚吉祥司杰刘宇常超
Owner 安徽太平矿业有限公司
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