Deep mining method capable of optimizing support parameters and preventing roadway delaying water gushing

A support parameter and deep mining technology, applied in tunnels, tunnel linings, mining equipment, etc., can solve problems such as engineering application limitations, ineffective prevention, and difficulty in monitoring and forecasting, and achieve the effect of parameter optimization

Active Publication Date: 2013-07-10
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0006] Although the above-mentioned technologies have the characteristics of simple principles and intuitive results, they also have shortcomings such as ineffective prevention and difficult monitoring and forec

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  • Deep mining method capable of optimizing support parameters and preventing roadway delaying water gushing

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Embodiment Construction

[0033] See attached figure 1 , which describes a preferred embodiment of the method for preventing roadway lag water inrush by optimizing support parameters in deep mining according to the present invention. The method includes five steps, namely:

[0034] (1) Determine the preliminary support plan;

[0035] (2) Optimization of bolt support parameters;

[0036] (3) Determination of support scheme and support parameters;

[0037] (4) Aquifer detection and grouting reinforcement in fault fracture zones;

[0038] (5) Gangue filling in roadway.

[0039] Each step is further described in detail below.

[0040] The steps of determining the preliminary support scheme include the following process contents:

[0041] ①Preliminary support of roadway under special geological conditions

[0042] During the excavation process, use underground seismic detection, Rayleigh wave detection or transient electromagnetic detection methods to detect geological anomalies in fault lithology ch...

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Abstract

A deep mining method capable of optimizing support parameters and preventing roadway delaying water gushing includes that (1) an initial supporting scheme is determined; (2) anchoring rod supporting parameters are optimized; (3) the supporting scheme and supporting parameters are determined; (4) a fault fracture zone water-bearing stratum is detected, grouted and reinforced; and (5) roadway waste filling is conducted. By means of the method, a water gushing proceduring concept is provided in theory, and a rock mass creep deformation characteristic and confined water gushing timeliness are proved through experiments. Delaying water gushing is prevented by optimizing the supporting parameters, preventing roadway flowing deformation and improving anti-gushing potential of protecting rock mass.

Description

technical field [0001] The invention relates to a method for preventing water inrush, in particular to a method for preventing roadway lag water inrush by optimizing support parameters in deep mining. Background technique [0002] Delayed water discharge in roadway is a relatively common underground geological phenomenon. Before it occurs, there are often signs of mine pressure, floor arching, roof and floor water seepage, etc. By strengthening the study of water discharge mechanism and grasping its occurrence law, the delayed water discharge of roadway faults can be obtained prevention and management. In terms of field technology application, the existing technical achievements mainly include: [0003] (1) Before the construction of shaft and roadway works, do a good job of exploring the hydrogeological conditions in the construction area. Drilling, geophysical prospecting and other means are used to investigate the structural development of the study area, and the basic ...

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Application Information

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IPC IPC(8): E21D11/00E21D11/38
Inventor 刘伟韬申建军刘承论刘云娟薄福利魏佑山王连富刘鸿斌李媚
Owner SHANDONG UNIV OF SCI & TECH
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