Method for evaluating stability of grouting anchor cable forepoling stoping working face roadway
The invention discloses a method for evaluating stability of grouting anchor cable forepoling stoping working face roadway, which comprises the following steps: S1, selecting a working face with the same overall geological condition, and setting a first supporting section and a second supporting sec...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a method for evaluating stability of grouting anchor cable forepoling stoping working face roadway, which comprises the following steps: S1, selecting a working face with the same overall geological condition, and setting a first supporting section and a second supporting section in the stoping direction of the working face; S2, respectively detecting parameter data of thefirst supporting section and the second supporting section; S3, determining equivalent parameters according to the parameter data; S4, respectively establishing stability comprehensive evaluation values R1 and R2 of the first support section and the second support section according to the equivalent parameters; and S5, comparing the value R1 with the value R2 to judge the stability of the roadway.According to the method, the stability evaluation of the grouting anchor cable forepoling stoping roadway is more comprehensive, scientific and reasonable. The working face stoping speed is increased, the labor intensity of w |
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