In response to the problems of high water pressure and difficulty in controlling surrounding rock in the excavation of 61206 transport roadway under rich water aquifers,advanced directional long drilling and short drilling methods were comprehensively adopted for drainage based on site conditions.Then,deep hole grouting and anchor net spraying were used to seal the water conducting cracks and control the deformation of surrounding rock.Good results were achieved in field application.
关键词
含水层/探放水/定向长钻孔/注浆/围岩支护
Key words
aquifer/water detection and water release/directional long drilling/grouting/surrounding rock support
维普
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